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TECHNICAL NOTE
High-performance Clock Generator Series
DVD-video Reference Clock Generators for Audio/Video Equipments
BU2280FV, BU2288FV, BU2360FV, BU2362FV
Description These clock generators are an IC generating three types of clocks - VIDEO, AUIDIO and SYSTEM clocks - necessary for DVD player systems, with a single chip through making use of the PLL technology. Particularly, the AUDIO clock is a DVD-Video reference and yet achieves high C/N characteristics to provide a low level of distortion factor.
Features 1) Connecting a crystal oscillator generates multiple clock signals with a built-in PLL. 2) AUDIO clock of high C/N characteristics providing a low level of distortion factor 3) The AUDIO clock provides switching selection outputs. 4) Single power supply of 3.3 V
Applications DVD players
Lineup Part name Power source voltage [V] Reference frequency [MHz] DVD VIDEO 2 1 1/2 768fs 512fs DVD AUDIO, CD (Switching outputs) 384fs 256fs other 768 (48k type) 768 (44.1k type) 384 (44.1k type) BU2280FV 3.0 3.6 27.0000 27.0000 36.8640 /33.8688 24.5760 /22.5792 18.4320 /16.9344 33.8688 70 8.0 SSOP-B24 BU2288FV 3.0 3.6 27.0000 27.0000 24.5760 /22.5792 36.8640 /16.9344 33.8688 16.9344 70 5.0 SSOP-B16 BU2360FV 2.7 3.6 27.0000 27.0000 24.5760 /22.5792 33.8688 70 2.5 SSOP-B16 BU2362FV 2.7 3.6 27.0000 27.0000 24.5760 /22.5792 36.8640 /16.9344 36.8640 33.8688 16.9344 70 5.0 SSOP-B16
Output frequency [MHz]
SYSTEM
Jitter 1 [psec] Long-term-Jitter p-p [nsec] Package
Sep. 2008
Absolute Maximum Ratings (Ta=25) Parameter Supply voltage Input voltage
Storage temperature range
Power dissipation
Symbol VDD VIN Tstg PD
BU2280FV -0.5 7.0 -0.5VDD0.5 -30 125 630 *1
BU2288FV -0.5 7.0 -0.5VDD0.5 -30 125 450 *2
BU2360FV -0.5 7.0 -0.5VDD0.5 -30 125 450 *2
BU2362FV -0.5 7.0 -0.5VDD0.5 -30 125 450 *2
Unit V V mW
*1 In the case of exceeding Ta = 25, 6.3mW to be reduced per 1 *2 In the case of exceeding Ta = 25, 4.5mW to be reduced per 1 Operating is not guaranteed. The radiation-resistance design is not carried out. Power dissipation is measured when the IC is mounted to the printed circuit board.
Recommended Operating Range Parameter Parameter Supply voltage Input "H" Voltage Input "L" Voltage Operating temperature Output load
27M output load 1
Symbol VDD VIH VIL Topr CL CL_27M1 CL_27M2
BU2280FV 3.0 3.6 0.8VDDVDD 0.0 0.2VDD -5 70 15 -
BU2288FV 3.0 3.6 0.8VDDVDD 0.0 0.2VDD -5 70 15 -
BU2360FV 2.7 3.6 0.8VDDVDD 0.0 0.2VDD -25 85 15 40 (CLK27M1) 25 (CLK27M2)
BU2362FV 2.7 3.6 0.8VDDVDD 0.0 0.2VDD -25 85 15 -
Unit V V V pF pF pF
Electrical characteristics BU2280FVVDD=3.3V, Ta=25, Crystal frequency 27.0000MHz, unless otherwise specified. Parameter Symbol Min. Typ. Max. Unit Conditions Output L voltage VOL 0.4 V IOL=4.0mA Output H voltage VOH 2.4 V IOH=-4.0mA Consumption IDD 30 50 mA At no load current CLK768-44 33.8688 MHz At FSEL=L, XTALx3136 / 625 / 4 CLK768FS CLK768-48 36.8640 MHz At FSEL=H, XTALx2048 / 375 / 4 CLK512-44 22.5792 MHz At FSEL=L, XTALx3136 / 625 / 6 CLK512FS CLK512-48 24.5760 MHz At FSEL=H, XTALx2048 / 375 / 6 CLK384-44 16.9344 MHz At FSEL=L, XTALx3136 / 625 / 8 CLK384FS CLK384-48 18.4320 MHz At FSEL=H, XTALx2048 / 375 / 8 CLK33M CLK33M 33.8688 MHz XTALx147 / 40 / 4 CLK16M CLK16M 16.9344 MHz XTALx147 / 40 / 8 Duty Duty 45 50 55 % Measured at a voltage of 1/2 of VDD Period-Jitter 1 P-J 1 70 psec *1 Period-Jitter P-J 420 psec *2 MIN-MAX MIN-MAX Rise Time Fall Time Output Lock-Time Tr Tf Tlock 2.5 2.5 1 nsec nsec msec
Period of transition time required for the output reach 80 from 20 of output reach 20 from 80 of VDD. VDD. Period of transition time required for the
*3
Note) The output frequency is determined by the arithmetic (frequency division) expression of a frequency input to XTALIN. If the input frequency is set to 27.0000MHz, the output frequency will be as listed above.
2/24
BU2288FVVDD=3.3V, Ta=25, Crystal frequency 27.0000MHz, unless otherwise specified. Parameter Output L voltage Output H voltage FSEL input VthL FSEL input VthH Hysteresis range
Action circuit current
Symbol VOH VOL VthL VthH Vhys IDD CLK512-44 CLK512-48 CLK33M CLK16M CLK27M CLKA-A CLKA-B Duty P-J 1 P-J MIN-MAX Tr Tf Tlock
Min. 2.4 0.2VDD 0.2 45 -
Typ. 27.0000 22.5792 24.5760 33.8688 16.9344 27.0000 16.9344 36.8640 50 70 420 2.5 2.5 -
Max. 0.4 0.8VDD 40.5 55 1
Unit V V V V V mA MHz MHz MHz MHz MHz MHz MHz % psec psec nsec nsec msec
Conditions IOH=-4.0mA IOL=4.0mA *4 *4 Vhys=VthH-VthL*4 At no load At FSEL1=OPEN XTAL3136/625/6 At FSEL1=L XTAL2048/375/6 XTAL3136/625/4 XTAL3136/625/8 XTAL direct out At FSEL1=OPEN XTAL3136/625/8 At FSEL1=L XTAL2048/375/4
Measured at a voltage of 1/2 of VDD
CLK512FS CLK33M CLK16M CLK27M CLK A Duty Period-Jitter 1 Period-Jitter MIN-MAX Rise time Fall time Output Lock-Time
*1 *2
Period of transition time required for the output reach 80 from 20 of output reach 20 from 80 of VDD. VDD. Period of transition time required for the
3
Note) The output frequency is determined by the arithmetic (frequency division) expression of a frequency input to XTALIN. If the input frequency is set to 27.0000MHz, the output frequency will be as listed above.
BU2360FVVDD=3.3V, Ta=25, Crystal frequency 27.0000MHz, unless otherwise specified. Parameter Symbol Min. Typ. Max. Unit Conditions Output L voltage VOL 0.4 V IOL=4.0mA Output H voltage VOH 2.4 V IOH=-4.0mA FSEL input VthL VthL 0.2VDD V *4 FSEL input VthH VthH 0.8VDD V *4 Hysteresis range Vhys 0.2 V Vhys = VthH - VthL *4
Action circuit current
CLK27M CLK33M CLK512FS Duty Period-Jitter 1 Period-Jitter MIN-MAX Rise Time Fall Time Output Lock-Time
IDD CLK27M CLK33M CLK512_48 CLK512_44 Duty P-J 1 P-J MIN-MAX Tr Tf Tlock
45 -
27.0 27.0000 33.8688 24.5760 22.5792 50 70 420 2.5 2.5 -
40.5 55 1
mA MHz MHz MHz MHz % psec psec nsec nsec msec
At no load XTAL direct out XTALx3136 / 625 / 4 At FSEL=H, XTALx2048 / 375 / 6 At FSEL=L, XTALx3136 / 625 / 6 Measured at a voltage of 1/2 of VDD *1 *2
Period of transition time required for the output reach 80 from 20 of output reach 20 from 80 of VDD. VDD. Period of transition time required for the
*3
Note) The output frequency is determined by the arithmetic (frequency division) expression of a frequency input to XTALIN. If the input frequency is set to 27.0000MHz, the output frequency will be as listed above.
3/24
BU2362FVVDD=3.3V, Ta=25, Crystal frequency 27.0000MHz, unless otherwise specified. Parameter Output L voltage Output H voltage
Action circuit current
Symbol VOH VOL IDD CLK512-44 CLK512-48 CLKA-A CLKA-B CLK36M CLK33M CLK16M CLK27M Duty P-J 1 P-J MIN-MAX Tr Tf Tlock
Min. 2.4 45 -
Typ. 35 22.5792 24.5760 16.9344 36.8640 36.8640 33.8688 16.9344 27.0000 50 70 420 2.5 2.5 -
Max. 0.4 45 55 1
Unit V V mA MHz MHz MHz MHz MHz MHz MHz MHz % psec psec nsec nsec msec
Conditions IOH=-4.0mA IOL=4.0mA At no load At FSEL1=OPEN XTAL3136/625/6 At FSEL1=L XTAL2048/375/6 At FSEL1=OPEN XTAL3136/625/8 At FSEL1=L XTAL2048/375/8 XTAL2048/375/4 XTAL3136/625/4 XTAL3136/625/8 XTAL direct out Measured at a voltage of 1/2 of VDD *1 *2
Period of transition time required for the output reach 80 from 20 of output reach 20 from 80 of VDD. VDD. Period of transition time required for the
CLK512FS CLKA CLK36M CLK33M CLK16M CLK27M Duty Period-Jitter 1 Period-Jitter MIN-MAX Rise Time Fall Time Output Lock-Time
*3
Note) The output frequency is determined by the arithmetic (frequency division) expression of a frequency input to XTALIN. If the input frequency is set to 27.0000MHz, the output frequency will be as listed above.
Common to BU2280FV, BU2288FV, BU2360FV and BU2362FV: *1 Period-Jitter 1 This parameter represents standard deviation (1 ) on cycle distribution data at the time when the output clock cycles are sampled 1000 times consecutively with the TDS7104 Digital Phosphor Oscilloscope of Tektronix Japan, Ltd. Period-Jitter MIN-MAX This parameter represents a maximum distribution width on cycle distribution data at the time when the output clock cycles are sampled 1000 times consecutively with the TDS7104 Digital Phosphor Oscilloscope of Tektronix Japan, Ltd. Output Lock-Time The Lock-Time represents elapsed time after power supply turns ON to reach a 3.0V voltage, after the system is switched from Power-Down state to normal operation state, or after the output frequency is switched, until it is stabilized at a specified frequency, respectively. BU2360FV, BU2288FV 4 This parameter represents lower and upper limit voltages at the Schmitt trigger input PIN having hysteresis characteristics shown in figure below. The width requested by these differences is assumed to be a hysteresis width.
*2
*3
0.2VDD Output Voltage [V]
0.8VDD
Vhys
0
VthL
Input Voltage [V]
VthH
4/24
Reference data (BU2280FV basic data) RBW=1KHz VBW=100Hz 1.0Vdiv 10dBdiv 500psecdiv Fig.2 33.9MHz Period-Jitter VDD=3.3V, at CL=15pF 1.0Vdiv 5.0nsecdiv Fig.1 33.9MHz output waveform VDD=3.3V, at CL=15pF
10KHzdiv Fig.3 33.9MHz Spectrum VDD=3.3V, at CL=15pF
RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv 10dBdiv
5.0nsecdiv Fig.4 36.9MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.5 36.9MHz Period-Jitter VDD=3.3V, at CL=15pF
10KHzdiv Fig.6 36.9MHz Spectrum VDD=3.3V, at CL=15pF
RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv 10dBdiv
5.0nsecdiv Fig.7 22.6MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.8 22.6MHz Period-Jitter VDD=3.3V, at CL=15pF
10KHzdiv Fig.9 22.6MHz Spectrum VDD=3.3V, at CL=15pF
RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv 5.0nsecdiv Fig.10 24.6MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.11 24.6MHz Period-Jitter VDD=3.3V, at CL=15pF
10KHzdiv Fig.12 24.6MHz Spectrum VDD=3.3V, at CL=15pF
5/24
Reference data (BU2280FV basic data)
RBW=1KHz VBW=100Hz 10dBdiv 10KHzdiv Fig.15 16.9MHz Spectrum VDD=3.3V, at CL=15pF RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv
LT Jitter 8.1nsec
1.0Vdiv
10.0nsecdiv Fig.13 16.9MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.14 16.9MHz Period-Jitter VDD=3.3V, at CL=15pF
1.0Vdiv
10.0nsecdiv Fig.16 18.4MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.17 18.4MHz Period-Jitter VDD=3.3V, at CL=15pF
1.0Vdiv
1.0Vdiv
5.0nsecdiv Fig.19 27MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.20 27MHz Period-Jitter VDD=3.3V, at CL=15pF
1.0Vdiv
LT Jitter 6.2nsec
2.0nsecdiv Fig.22 24.6MHz LT Jitter VDD=3.3V, at CL=15pF
1.0Vdiv
2.0nsecdiv Fig.23 22.6MHz LT Jitter VDD=3.3V, at CL=15pF
6/24
10dBdiv 10KHzdiv Fig.21 27MHz Spectrum VDD=3.3V, at CL=15pF
10dBdiv 10KHzdiv Fig.18 18.4MHz Spectrum VDD=3.3V, at CL=15pF RBW=1KHz VBW=100Hz
Reference data (BU2280FV Temperature and Supply voltage variations data)
5
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=2.9V VDD=3.7V VDD=3.3V
100 90 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.7V
600
VDD=3.3V VDD=2.9V
Period-jitterMIN-MAX PJ-MIN-MAX[psec]
80
500 400 300 200 100 0 -25 0
VDD=3.3V
VDD=2.9V
VDD=3.7V
25
50
75
100
TemperatureT[]
Temperature T[ ]
TemperatureT[]
Fig.24 33.9MHz TemperatureDuty
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=2.9V VDD=3.3V
Fig.25 33.9MHz TemperaturePeriod-Jitter 1
100 90 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.3V VDD=3.7V
Fig.26 33.9MHz TemperaturePeriod-Jitter MIN-MAX
600
Period-jitterMIN-MAX PJ-MIN-MAX[psec]
80
VDD=2.9V
500 400 300
VDD=3.7V
VDD=2.9V
VDD=3.3V
200 100 0 -25 0 25 50 75 100
Temperature T[ ]
TemperatureT[]
TemperatureT[]
Fig.27 36.9MHz TemperatureDuty
55
Period-jitter1 PJ-1[psec]
Fig.28 36.9MHz TemperaturePeriod-Jitter 1
100 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=2.9V VDD=3.7V VDD=3.3V
Fig.29 36.9MHz Temperature rPeriod-Jitter MIN-MAX
600 500 400 300 200 100 0 -25 0 25 50 75 100
VDD=2.9V VDD=3.7V
54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.3V VDD=3.7V VDD=2.9V
Period-jitterMIN-MAX PJ-MIN-MAX[psec]
VDD=3.3V
Temperature T[ ]
Temperature T[ ]
TemperatureT[]
Fig.30 22.6MHz TemperatureDuty
55 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=2.9V VDD=3.3V
Fig.31 22.6MHz TemperaturePeriod-Jitter 1
100 Period-jitter1 PJ-1[psec] 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.7V VDD=2.9V VDD=3.3V
Fig.32 22.6MHz TemperaturePeriod-Jitter MIN-MAX
600 500 400 300
VDD=2.9V VDD=3.7V VDD=3.3V
Period-jitterMIN-MAX PJ-MIN-MAX[psec]
200 100 0 -25 0 25 50 75 100
Temperature T[ ]
Temperature T[ ]
TemperatureT[]
Fig.33 24.6MHz TemperatureDuty
Fig.34 24.6MHz TemperaturePeriod-Jitter 1
Fig.35 24.6MHz TemperaturePeriod-Jitter MIN-MAX
7/24
Reference data (BU2280FV Temperature and Supply voltage variations data)
55
Period-jitter1 PJ-1[psec] 100 90
Period-jitterMIN-MAX PJ-MIN-MAX[psec] 600 500 400 300 200 100 0
VDD=3.3V VDD=3.7V VDD=2.9V
54 53 DutyDuty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100 TemperatureT[]
VDD=3.3V VDD=2.9V VDD=3.7V
80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=2.9V VDD=3.3V VDD=3.7V
-25
0
25
50
75
100
TemperatureT[]
Temperature T[ ]
Fig.36 16.9MHz TemperatureDuty
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=2.9V VDD=3.7V VDD=3.3V
Fig.37 16.9MHz TemperaturePeriod-Jitter 1
100 90
Fig.38 16.9MHz TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500
VDD=3.7V
80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=2.9V VDD=3.3V VDD=3.7V
400 300 200 100 0 -25 0 25 50 75 100
VDD=2.9V VDD=3.3V
TemperatureT[]
TemperatureT[]
Temperature T[ ]
Fig.39 18.4MHz TemperatureDuty
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=3.3V VDD=2.9V
Fig.40 18.4MHz TemperaturePeriod-Jitter 1
100 90
VDD=2.9V VDD=3.3V
Fig.41 18.4MHz TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500 400 300 200 100 0
VDD=3.3V VDD=3.7V VDD=2.9V
80 70 60 50 40 30 20 10 0 -25
VDD=3.7V
0
25
50
75
100
-25
0
25
50
75
100
TemperatureT[]
TemperatureT[]
Temperature T[ ]
Fig.42 27MHz TemperatureDuty
50 Circuit Current IDD[mA] 40 30 20 10 0 -25 0 25 50 75 100
VDD=2.9V VDD=3.7V VDD=3.3V
Fig.43 27MHz TemperaturePeriod-Jitter 1
Fig.44 27MHz TemperaturePeriod-Jitter MIN-MAX
TemperatureT[]
Fig.45 Action circuit current (with maximum output load) TemperatureConsumption current
8/24
Reference data (BU2360FV basic data) RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv
5.0nsecdiv Fig.46 27MHz output waveform VDD=3.3V, at CL=40pF
500psecdiv Fig.47 27MHz Period-Jitter VDD=3.3V, at CL=40pF
1.0Vdiv
1.0Vdiv
5.0nsecdiv Fig.49 27MHz output waveform VDD=3.3V, at CL=25pF
500psecdiv Fig.50 27MHz Period-Jitter VDD=3.3V, at CL=25pF
1.0Vdiv
1.0Vdiv
5.0nsecdiv Fig.52 33.9MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.53 33.9MHz Period-Jitter VDD=3.3V, at CL=15pF
1.0Vdiv
1.0Vdiv
5.0nsecdiv Fig.55 24.6MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.56 24.6MHz Period-Jitter VDD=3.3V, at CL=15pF
9/24
10dBdiv 10KHzdiv Fig.57 24.6MHz Spectrum VDD=3.3V, at CL=15pF
10dBdiv 10KHzdiv Fig.54 33.9MHz Spectrum VDD=3.3V, at CL=15pF RBW=1KHz VBW=100Hz
10dBdiv 10KHzdiv Fig.51 27MHz Spectrum VDD=3.3V, at CL=25pF RBW=1KHz VBW=100Hz
10dBdiv 10KHzdiv Fig.48 27MHz Spectrum VDD=3.3V, at CL=40pF RBW=1KHz VBW=100Hz
Reference data (BU2360FV basic data) RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv
5.0nsecdiv
Fig.58 22.6MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv
Fig.59 22.6MHz Period-Jitter VDD=3.3V, at CL=15pF
10dBdiv 10KHzdiv
Fig.60 22.6MHz Spectrum VDD=3.3V, at CL=15pF
LT Jitter 2.5nsec
1.0Vdiv
LT Jitter 2.3nsec
1.0Vdiv
1.0nsecdiv
Fig61. 24.6MHz LT Jitter VDD=3.3V, at CL=15pF
1.0nsecdiv
Fig62. 22.6MHz LT Jitter VDD=3.3V, at CL=15pF
Reference data (BU2360FV Temperature and Supply voltage variations data)
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=2.4V VDD=3.7V VDD=3.3V
100 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.7V VDD=3.3V VDD=2.4V
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500 400 300 200 100 0 -25 0 25 50 75 100
VDD=3.3V VDD=3.7V VDD=2.4V
TemperatureT[]
TemperatureT[]
Temperature T[ ]
Fig.63 27MHz (40pF) TemperatureDuty
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=3.3V VDD=2.4V
Fig.64 27MHz (40pF) TemperaturePeriod-Jitter 1
100 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.7V VDD=2.4V
Fig.65 27MHz (40pF) TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec]
VDD=2.4V
VDD=3.3V
500 400 300
VDD=3.7V
200 100 0 -25 0 25
VDD=3.3V
50
75
100
TemperatureT[]
TemperatureT[]
Temperature T[ ]
Fig.66 27MHz (25pF) TemperatureDuty
Fig.67 27MHz (25pF) TemperaturePeriod-Jitter 1
Fig.68 27MHz (25pF) TemperaturePeriod-Jitter MIN-MAX
10/24
Reference data (BU2360FV Temperature and Supply voltage variations data)
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=2.4V VDD=3.3V
100 90 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.7V VDD=2.4V VDD=3.3V
600 500 400 300
VDD=3.7V VDD=2.4V VDD=3.3V
200 100 0 -25 0 25 50 75 100
Temperature T[ ]
TemperatureT[]
Temperature T[ ]
Fig.69 33.9MHz TemperatureDuty
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.3V VDD=3.7V VDD=2.4V
Fig.70 33.9MHz TemperaturePeriod-Jitter 1
100 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.3V VDD=2.4V VDD=3.7V
Fig.71 33.9MHz TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500 400 300 200 100 0 -25 0 25 50 75 100
VDD=2.4V
VDD=3.3V
VDD=3.7V
Temperature T[ ]
TemperatureT[]
Temperature T[ ]
Fig.72 24.6MHz TemperatureDuty
Fig.73 24.6MHz TemperaturePeriod-Jitter 1
Fig.74 24.6MHz TemperaturePeriod-Jitter MIN-MAX
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[ ] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=2.4V VDD=3.3V
100 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=2.4V VDD=3.7V
600 500 400 300 200 100 0 -25 0 25 50 75 100
VDD=3.7V
VDD=3.3V
Period-jitterMIN-MAX PJ-MIN-MAX[psec]
VDD=2.4V
VDD=3.3V
Temperature T[ ]
TemperatureT[]
Temperature T[ ]
Fig.75 22.6MHz TemperatureDuty
50 Circuit Current IDD[mA] 40 30 20 10 0 -25 0 25 50 75 100
VDD=2.4V
Fig.76 22.6MHz TemperaturePeriod-Jitter 1
Fig.77 22.6MHz TemperaturePeriod-Jitter MIN-MAX
VDD=3.7V
VDD=3.3V
Temperature T[ ]
Fig.78 Action circuit current (with maximum output load) TemperatureConsumption current
11/24
Reference dataBU2362FV basic data
RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv
5.0nsecdiv Fig.79 33.9MHz output waveform VDD=3.3V, at CL=15pF
500psecdiv Fig.80 33.9MHz Period-Jitter VDD=3.3V, at CL=15pF
10dBdiv 10KHzdiv Fig.81 33.9MHz Spectrum VDD=3.3V, at CL=15pF RBW=1KHz VBW=100Hz 10dBdiv 500psecdiv 10KHzdiv Fig.84 36.9MHz Spectrum VDD=3.3V, at CL=15pF RBW=1KHz VBW=100Hz 10dBdiv 500psecdiv Fig.86 22.6MHz Period-Jitter VDD=3.3V, at CL=15pF 10KHzdiv Fig.87 22.6MHz Spectrum VDD=3.3V, at CL=15pF RBW=1KHz VBW=100Hz 500psecdiv Fig.89 24.6MHz Period-Jitter VDD=3.3V, at CL=15pF
12/24
1.0Vdiv
5.0nsecdiv Fig.82 36.9MHz output waveform VDD=3.3V, at CL=15pF
1.0Vdiv
5.0nsecdiv Fig.85. 22.6MHz output waveform VDD=3.3V, at CL=15pF
1.0Vdiv
1.0Vdiv Fig.83 36.9MHz Period-Jitter VDD=3.3V, at CL=15pF
1.0Vdiv
5.0nsecdiv Fig.88 24.6MHz output waveform VDD=3.3V, at CL=15pF
1.0Vdiv
10dBdiv Fig.90 24.6MHz Spectrum VDD=3.3V, at CL=15pF
Reference dataBU2362FV basic data
RBW=1KHz VBW=100Hz 1.0Vdiv 1.0Vdiv 10dBdiv 500psecdiv Fig.92 16.9MHz Period-Jitter VDD=3.3V, at CL=15pF 10KHzdiv Fig.93 16.9MHz Spectrum VDD=3.3V, at CL=15pF RBW=1KHz VBW=100Hz 1.0Vdiv 10dBdiv 500psecdiv Fig.95 27MHz Period-Jitter VDD=3.3V, at CL=15pF 1.0Vdiv 5.0nsecdiv Fig.94 27MHz output waveform VDD=3.3V, at CL=15pF
5.0nsecdiv Fig.91 16.9MHz output waveform VDD=3.3V, at CL=15pF
10KHzdiv Fig.96 27MHz Spectrum VDD=3.3V, at CL=15pF
1.0Vdiv
LT Jitter 4.8nsec
2.0nsecdiv Fig.97 24.6MHz LT Jitter VDD=3.3V, at CL=15pF
1.0Vdiv 2.0nsecdiv Fig.98 22.6MHz LT Jitter VDD=3.3V, at CL=15pF
13/24
Reference data (BU2362FV Temperature and Supply voltage variations data)
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=2.4V VDD=3.3V VDD=3.7V
100 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.3V VDD=2.4V VDD=3.7V
100 Period-jitter1 PJ-1[psec] 90 80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.7V VDD=2.4V VDD=3.3V
TemperatureT[]
Temperature T[ ]
TemperatureT[]
Fig.99 33.9MHz TemperatureDuty
55
Period-jitter1 PJ-1[psec]
Fig.100 33.9MHz TemperaturePeriod-Jitter 1
100 90 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.3V VDD=2.4V
Fig.101 33.9MHz TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500 400 300 200 100 0 -25 0 25 50 75 100
VDD=3.3V VDD=2.4V VDD=3.7V
54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=2.4V VDD=3.3V
80
VDD=3.7V
TemperatureT[]
Temperature T[ ]
Temperature T[ ]
Fig.102 36.9MHz TemperatureDuty
55
Period-jitter1 PJ-1[psec] 100 90 70 60 50 40 30 20 10 0
Fig.103 36.9MHz TemperaturePeriod-Jitter 1
Fig.104 36.9MHz TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500 400
VDD=3.7V
54 53 Duty Duty[ ] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.7V VDD=2.4V VDD=3.3V
80
VDD=3.7V VDD=2.4V
300 200
VDD=3.3V
VDD=2.4V
VDD=3.3V
100 0
-25
0
25
50
75
100
-25
0
25
50
75
100
TemperatureT[]
TemperatureT[]
Temperature T[ ]
Fig.105 22.6MHz TemperatureDuty
55
Period-jitter1 PJ-1[psec]
Fig.106 22.6MHz TemperaturePeriod-Jitter 1
100 90 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.3V VDD=3.7V VDD=2.4V
Fig.107 22.6MHz TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500 400
VDD=2.4V
54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.3V VDD=2.4V VDD=3.7V
80
300 200 100 0 -25 0 25 50 75 100
VDD=3.3V VDD=3.7V
TemperatureT[]
TemperatureT[]
Temperature T[ ]
Fig.108 24.6MHz TemperatureDuty
Fig.109 24.6MHz TemperaturePeriod-Jitter 1
Fig.110 24.6MHz TemperaturePeriod-Jitter MIN-MAX
14/24
Reference data (BU2362FV Temperature and Supply voltage variations data)
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=3.3V VDD=2.4V VDD=3.7V
100 90 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.3V
600 500 400 300 200 100 0 -25 0 25 50 75 100
VDD=2.4V VDD=3.7V VDD=3.3V
VDD=3.7V
VDD=2.4V
TemperatureT[]
TemperatureT[]
Period-jitterMIN-MAX PJ-MIN-MAX[psec]
80
Temperature T[ ]
Fig.111 16.9MHz TemperatureDuty
55 Period-jitter1 PJ-1[psec] 54 53 Duty Duty[%] 52 51 50 49 48 47 46 45 -25 0 25 50 75 100
VDD=2.4V VDD=3.3V VDD=3.7V
Fig.112 16.9MHz TemperaturePeriod-Jitter 1
100 90
Fig.113 16.9MHz) TemperaturePeriod-Jitter MIN-MAX
600 Period-jitterMIN-MAX PJ-MIN-MAX[psec] 500 400
VDD=3.3V
80 70 60 50 40 30 20 10 0 -25 0 25 50 75 100
VDD=3.7V VDD=3.3V VDD=2.4V
VDD=2.4V
300 200 100 0 -25 0 25 50 75 100
VDD=3.7V
TemperatureT[]
Temperature T[ ]
Temperature T[ ]
Fig.114 27MHz TemperatureDuty
Fig.115 27MHz TemperaturePeriod-Jitter 1
Fig.116 27MHz TemperaturePeriod-Jitter MIN-MAX
50 Circuit Current IDD[mA] 40
VDD=3.7V
30 VDD=3.7V 20 10 0 -25 0 25 50 75 100
VDD=2.4V VDD=3.3V
TemperatureT[]
Fig.117 Action circuit current (with maximum output load) TemperatureConsumption current
*Refer to the BU2362FV data for BU2288FV data.
15/24
Block diagram, Pin assignment BU2280FV
3:CLK27M1 (27.0000MHz) 4:CLK27M2 (27.0000MHz) 24:CLK27M3 (27.0000MHz)
1/4
XTALIN=27.0000MHz 8:XTALIN 9:XTALOUT
12:CLK33M (33.8688MHz)
XTAL OSC
PLL1
1/6 1/8
22:CLK768FS (CTRLFS=OPEN:36.8640MHz CTRLFS=L :33.8688MHz) 16:CLK512FS1 (CTRLFS=OPEN:24.5760MHz CTRLFS=L :22.5792MHz) 15:CLK512FS2 (CTRLFS=OPEN:24.5760MHz CTRLFS=L :22.5792MHz) 20:CLK384FS (CTRLFS=OPEN:18.4320MHz CTRLFS=L :16.9344MHz)
1/4
PLL2
1/6 1/8
21:OE 23:CTRLFS (FSEL=OPEN:48.0kHz type FSEL=L :44.1kHz type)
Fig.118
1:VDD1 2:VSS1 3:CLK27M1 4:CLK27M2 5:AVDD 6:AVDD 7:AVSS 8:XTALIN 9:XTALOUT 10:VSS2 11:VDD2 12:CLK33M
24:CLK27M3 23:CTRLFS 22:CLK768FS 21:OE 20:CLK384FS 19:DVDD 18:DVSS 17:DVSS 16:CLK512FS1 15:CLK512FS2 14:VDD2 13:VSS2
Fig.119
BU2280FV BU2280FV
CTRLFS L OPEN
CLK384FS 16.9344MHz 18.4320MHz
CLK512FS 22.5792MHz 24.5760MHz
CLK768FS 33.8688MHz 36.8640MHz
16/24
Block diagram, Pin assignment BU2288FV
3:CLK27M (27.0000MHz) 15:CLK33M (33.8688MHz)
1/4 1/6
XTALIN=27.0000MHz 8:XTALIN 7:XTALOUT
XTAL OSC
PLL1
1/8
13:CLK16M (16.9344MHz)
PLL2
1/4 1/6
9:CLKA (FSEL=OPEN:16.9344MHz FSEL=L :36.8640MHz) 10:CLK512FS (FSEL=OPEN:22.5792MHz FSEL=L :24.5760MHz)
16:OE 14:FSEL1
Fig.120
1:VDD2 2:VSS2 3:CLK27M 4:TEST 5:AVDD 6:AVSS 7:XTALOUT 8:XTALIN
16:OE 15:CLK33M 14:FSEL1 13:CLK16M 12:DVDD 11:DVSS 10:CLK512FS 9:CLKA
Fig.121
FSEL1 OPEN L
CLK512FS 22.5792MHz 24.5760MHz
17/24
BU2288FV
CLKA 16.9344MHz 36.8640MHz
Block diagram, Pin assignment BU2360FV
3:CLK27M 1 (27.0000MHz) 4:CLK27M 2 (27.0000MHz) 15:CLK33M1 (33.8688MHz)
1/4
XTALIN=27.0000MHz 7:XTALIN 8:XTALOUT
13:CLK33M2 (33.8688MHz)
XTAL OSC
PLL1
1/6
10:CLK512FS1 (FSEL=OPEN:24.5760MHz FSEL=L :22.5792MHz) 9:CLK512FS2 (FSEL=OPEN:24.5760MHz FSEL=L :22.5792MHz)
PLL2
16:OE 14:FSEL (FSEL=OPEN:48.0kHz type FSEL=L :44.1kHz type)
1/6
Fig.122
1:VDD2 2:VSS2
16:OE 15:CLK33M1
BU2360FV
3:CLK27M1 4:CLK27M2 5:AVDD 6:AVSS 7:XTALIN 8:XTALOUT
14:FSEL 13:CLK33M2 12:DVDD 11:DVSS 10:CLK512FS1 9:CLK512FS2
Fig.123
FSEL L OPEN
CLK512FS1 / 2 22.5792MHz 24.5760MHz
18/24
Block diagram, Pin assignment BU2362FV
3:CLK27M (27.0000MHz)
1/4 1/6
15:CLK33M (33.8688MHz)
XTALIN=27.0000MHz 8:XTALIN 7:XTALOUT
XTAL OSC
PLL1
1/8
13:CLK16M (16.9344MHz)
PLL2
1/4
16:CLK36M (36.8640MHz) 9:CLKA (FSE=OPEN:16.9344MHz FSEL=L :36.8640MHz)
1/6
10:CLK512FS (FSE=OPEN:22.5792MHz FSEL=L :24.5760MHz)
14:FSEL1
Fig.124
1:VDD2 2:VSS2 3:CLK27M 4:TEST 5:AVDD 6:AVSS 7:XTALOUT 8:XTALIN
16:CLK36M 15:CLK33M 14:FSEL1 13:CLK16M 12:DVDD 11:DVSS 10:CLK512FS 9:CLKA
Fig.125
BU2362FV
FSEL1 OPEN L
CLK512FS 22.5792MHz 24.5760MHz
CLKA 16.9344MHz 36.8640MHz
19/24
Example of application circuit BU2280FV
24:CLK27M3 23:CTRLFS 22:CLK768FS
1:VDD1
27.0000MHz OPEN:48.0kHz type L:44.1kHz type 36.8640MHz or 33.8688MHz OPEN:Enable L:Disable 18.4320MHz or 16.9344MHz 0.1uF
0.1uF
2:VSS1
27.0000MHz 27.0000MHz
3:CLK27M1
BU2280FV
4:CLK27M2 5:AVDD 6:AVDD
21:OE 20:CLK384FS 19:DVDD 18:DVSS 17:DVSS 16:CLK512FS1 15:CLK512FS2 14:VDD2
0.1uF
7:AVSS 8:XTALIN 9:XTALOUT 10:VSS2
0.1uF
11:VDD2
24.5760MHz or 22.5792MHz 24.5760MHz or 22.5792MHz 0.1uF
33.8688MHz
12:CLK33M
13:VSS2
Fig.126
Description of terminal
PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 PIN name VDD1 VSS1 CLK27M1 CLK27M2 AVDD AVDD AVSS XTALIN XTALOUT VSS2 VDD2 CLK33M VSS2 VDD2 CLK512FS2 CLK512FS1 DVSS DVSS DVDD CLK384FS OE CLK768FS CTRLFS CLK27M3 PIN function Power supply for 27MHz GND for 27MHz 27.0000MHz Clock output terminal 1 27.0000MHz Clock output terminal 2 Power supply for Analog block Power supply for Analog block GND for Analog block Crystal input terminal Crystal output terminal GND for 33MHz Power supply for 33MHz 33.8688MHz Clock output terminal GND for 33MHz Power supply for 33MHz CTRLFS=OPEN:24.5760MHz, CTRLFS=L:22.5792MHz CTRLFS=OPEN:24.5760MHz, CTRLFS=L:22.5792MHz GND for Digital block GND for Digital block Power supply for Digital block CTRLFS=OPEN:18.4320MHz, CTRLFS=L:16.9344MHz Output enable (with pull-up), OPEN:enable, L:disable CTRLFS=OPEN:36.8640MHz, CTRLFS=L:33.8688MHz 15, 16, 20, 22PIN output selection (with pull-up) OPEN:24.5760MHz(15PIN, 16PIN), 18.4320MHz(20PIN), 36.8640MHz(22PIN) L:22.5792MHz(15PIN, 16PIN), 16.9344MHz(20PIN), 33.8688MHz(22PIN) 27.0000MHz Clock output terminal 3
Note) Basically, mount ICs to the printed circuit board for use. (If the ICs are not mounted to the printed circuit board, the characteristics of ICs may not be fully demonstrated.) Mount 0.1F capacitors in the vicinity of the IC PINs between 1PIN (VDD1) and 2PIN (VSS1), 5PIN-6PIN (AVDD) and 7PIN (AVSS), 10PIN (VSS2) and 11PIN (VDD2), 13PIN(VSS2) and 14PIN (VDD2), 17PIN-18PIN (DVSS) and 19PIN(DVDD), respectively. Depending on the conditions of the printed circuit board, mount an additional electrolytic capacitor between the power supply and GND terminal. For EMI protection, it is effective to put ferrite beads in the origin of power supply to be fed to BU2280FV from the printed circuit board or to insert a capacitor (of 1 or less), which bypasses high frequency desired, between the power supply and the GND terminal.
20/24
Example of application circuit BU2360FV
1:VDD2
16:OE 15:CLK33M1
0.1uF
2:VSS2
OPEN:Enable L:Disable 33.8688MHz OPEN:48.0kHz type L:44.1kHz type 33.8688MHz
BU2360FV
27.0000MHz 27.0000MHz
3:CLK27M1 4: CLK27M2 5:AVDD
14:FSEL 13:CLK32M2 12:DVDD
0.1uF
6:AVSS 7:XTALIN 8:XTALOUT
0.1uF
11:DVSS 10:CLK512FS1 9:CLK512FS2
24.5760MHz or 22.5792MHz 24.5760MHz or 22.5792MHz
Fig.127
Description of terminal
PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIN name VDD2 VSS2 CLK27M1 CLK27M2 AVDD AVSS XTALIN XTALOUT CLK512FS2 CLK512FS1 DVSS DVDD CLK33M2 FSEL CLK33M1 OE PIN function Power supply for 27MHz GND for 27MHz 27.0000MHz Clock output terminal 1 (CL=40pF) 27.0000MHz Clock output terminal 2 (CL=25pF) Power supply for Analog block GND for Analog block Crystal input terminal Crystal output terminal FSEL=OPEN:24.5760MHz, FSEL=L:22.5792MHz FSEL=OPEN:24.5760MHz, FSEL=L:22.5792MHz GND for Digital block Power supply for Digital block 33.8688MHz Clock output terminal 2 9, 10PIN output selection (with pull-up) OPEN:24.5760MHz(9, 10PIN), L:22.5792MHz(9, 10PIN) 33.8688MHz Clock output terminal 1 Output enable (with pull-up), OPEN:enable, L:disable
Note) Basically, mount ICs to the printed circuit board for use. (If the ICs are not mounted to the printed circuit board, the characteristics of ICs may not be fully demonstrated.) Mount 0.1F capacitors in the vicinity of the IC PINs between 1PIN (VDD2) and 2PIN (VSS2), 5PIN (AVDD) and 6PIN (AVSS), 11PIN (DVSS) and 12PIN (DVDD), respectively. Depending on the conditions of the printed circuit board, mount an additional electrolytic capacitor between the power supply and GND terminal. For EMI protection, it is effective to put ferrite beads in the origin of power supply to be fed to BU2360FV from the printed circuit board or to insert a capacitor (of 1 or less), which bypasses high frequency desired, between the power supply and the GND terminal.
21/24
Example of application circuit BU2362FV
1:VDD2 2:VSS2
16:CLK36M 15:CLK33M
36.8640MHz 33.8688MHz H:44.1KHz mode L:48KHz mode 16.9344MHz
BU2362FV
27.0000MHz
3:CLK27M 4:TEST 5:AVDD 6:AVSS 7:XTALOUT 8:XTALIN
14:FSEL1 13:CLK16M 12:DVDD 11:DVSS 10:CLK512FS1 9:CLKA
27.0000MHz
22.5792MHz or 24.5670MHz 16.9344MHz or 36.8640MHz
Fig.128 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIN NAME VDD2 VSS2 CLK27M TEST AVDD AVSS XTALOUT XTALIN CLKA CLK512FS DVSS DVDD CLK16M FSEL1 CLK33M CLK36M Function Power supply for CLK27, CLK36M GND for CLK27, CLK36M 27MHz Clock output terminal Input pin for TEST : with pull-down (Please set "L" or OPEN, normally) Power supply for Analog block GND for Analog block Crystal output terminal Crystal input terminal CLKA output terminal (16.9344MHz or 36.8640MHz) 512fs Clock output terminal (22.5792MHz or 24.5760MHz) Power supply for Digital block GND for Digital block 16.9344MHz Clock output terminal CLKA or CLK512FS pin output select : with pull-up 33.8688MHz Clock output terminal 36.8640MHz Clock output terminal
Cautions on use (BU2362FV)
Basically, mount ICs to the printed circuit board for use. (If the ICs are not mounted to the printed circuit board, the characteristics of ICs may not be fully demonstrated.) Mount 0.1F capacitors in the vicinity of the IC PINs between 1PIN (VDD2) and 2PIN (VSS2), 5PIN (AVDD) and 6PIN (AVSS), 11PIN (DVSS) and 12PIN (DVDD), respectively. For the fine-tuning of frequencies, insert several numbers of pF in the 7PIN and 8PIN to GND. Depending on the conditions of the printed circuit board, mount an additional electrolytic capacitor between the power supply and GND terminal. For EMI protection, it is effective to put ferrite beads in the origin of power supply to be fed to BU2362FV from the printed circuit board or to insert a capacitor (of 1 or less), which bypasses high frequency desired, between the power supply and the GND terminal.
*Refer to the BU2362FV Example of application circuit for BU2288FV Example of application circuit.
Even though we believe that the example of recommended circuit is worth of a recommendation, please be sure to thoroughly recheck the characteristics before use.
22/24
Cautions on use (1) Absolute Maximum Ratings An excess in the absolute maximum ratings, such as applied voltage (VDD or VIN), operating temperature range (Topr), etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses, etc. (2) Recommended operating conditions These conditions represent a range within which characteristics can be provided approximately as expected. The electrical characteristics are guaranteed under the conditions of each parameter. (3) Reverse connection of power supply connector The reverse connection of power supply connector can break down ICs. Take protective measures against the breakdown due to the reverse connection, such as mounting an external diode between the power supply and the IC's power supply terminal. (4) Power supply line Design PCB pattern to provide low impedance for the wiring between the power supply and the GND lines. In this regard, for the digital block power supply and the analog block power supply, even though these power supplies has the same level of potential, separate the power supply pattern for the digital block from that for the analog block, thus suppressing the diffraction of digital noises to the analog block power supply resulting from impedance common to the wiring patterns. For the GND line, give consideration to design the patterns in a similar manner. Furthermore, for all power supply terminals to ICs, mount a capacitor between the power supply and the GND terminal. At the same time, in order to use an electrolytic capacitor, thoroughly check to be sure the characteristics of the capacitor to be used present no problem including the occurrence of capacity dropout at a low temperature, thus determining the constant. (5) GND voltage Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state. Furthermore, check to be sure no terminals are at a potential lower than the GND voltage including an actual electric transient. (6) Short circuit between terminals and erroneous mounting In order to mount ICs on a set PCB, pay thorough attention to the direction and offset of the ICs. Erroneous mounting can break down the ICs. Furthermore, if a short circuit occurs due to foreign matters entering between terminals or between the terminal and the power supply or the GND terminal, the ICs can break down. (7) Operation in strong electromagnetic field Be noted that using ICs in the strong electromagnetic field can malfunction them. (8) Inspection with set PCB On the inspection with the set PCB, if a capacitor is connected to a low-impedance IC terminal, the IC can suffer stress. Therefore, be sure to discharge from the set PCB by each process. Furthermore, in order to mount or dismount the set PCB to/from the jig for the inspection process, be sure to turn OFF the power supply and then mount the set PCB to the jig. After the completion of the inspection, be sure to turn OFF the power supply and then dismount it from the jig. In addition, for protection against static electricity, establish a ground for the assembly process and pay thorough attention to the transportation and the storage of the set PCB. (9) Input terminals In terms of the construction of IC, parasitic elements are inevitably formed in relation to potential. The operation of the parasitic element can cause interference with circuit operation, thus resulting in a malfunction and then breakdown of the input terminal. Therefore, pay thorough attention not to handle the input terminals, such as to apply to the input terminals a voltage lower than the GND respectively, so that any parasitic element will operate. Furthermore, do not apply a voltage to the input terminals when no power supply voltage is applied to the IC. In addition, even if the power supply voltage is applied, apply to the input terminals a voltage lower than the power supply voltage or within the guaranteed value of electrical characteristics. (10) Ground wiring pattern If small-signal GND and large-current GND are provided, It will be recommended to separate the large-current GND pattern from the small-signal GND pattern and establish a single ground at the reference point of the set PCB so that resistance to the wiring pattern and voltage fluctuations due to a large current will cause no fluctuations in voltages of the small-signal GND. Pay attention not to cause fluctuations in the GND wiring pattern of external parts as well. (11) External capacitor In order to use a ceramic capacitor as the external capacitor, determine the constant with consideration given to a degradation in the nominal capacitance due to DC bias and changes in the capacitance due to temperature, etc.
23/24
Product Designation B U 2 2 8 0 F V E 2
Part No.
Type Package Type Package and forming specification BU2280FV, BU2288FV, FV : SSOP-B24(BU2280FV) E2: Reel-like emboss taping BU2360FV, BU2362FV FV : SSOP-B16 (BU2288FV,BU2360FV,BU2362FV)
SSOP-B16

Tape Quantity
5.0 0.2
1.15 0.1 6.4 0.3 0.1 4.4 0.2
16 9
Embossed carrier tape 2500pcs E2
(The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand)
1
8
0.15 0.1
0.65
0.1 0.22 0.1
0.3Min.
Direction of feed
1234
Reel
1234
Unit:mm)
When you order , please order in times the amount of package quantity.
1234
1pin
1234
1234
1234
Direction of feed
1234
1234
SSOP-B24

Tape Quantity
7.8 0.2
24 13
Embossed carrier tape 2000pcs E2
(The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand)
7.6 0.3 5.6 0.2
1
12
1.15 0.1 0.1
0.65
0.1 0.22 0.1
0.3Min.
Direction of feed
0.15 0.1
1234
Reel
1234
1234
1pin
1234
1234
1234
Direction of feed
1234
1234
Unit:mm)
When you order , please order in times the amount of package quantity.
Catalog No.08T808A '08.9 ROHM (c)
Appendix
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM CO.,LTD. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office.
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TEL : +81-75-311-2121 FAX : +81-75-315-0172
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