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BH7862FS
Multimedia ICs
High-performance 6-channel video driver IC for progressive DVD
BH7862FS
BH7862FS is a 6-channel video driver IC developed for progressive DVD player/recorder. Special filters adjusted to each band of various video signals are incorporated into a single chip. Extended definition, size reduction, and high cost performance can be achieved in DVD players.
!Application DVD players, DVD recorders
!Features 1) Each high-performance filter, 6dB amplifier, and 75 driver for DVD are incorporated into a single chip. 2) Driver 6ch (Y, C, MIX, and PY, Pb, Pr for progressive) 3) Group delay difference between chroma signal and luminance signal is a small number of nsec. 4) Drive 2 lines of each signal 5) Operating by 5V single power supply 6) Built-in mute circuit
!Absolute maximum ratings (Ta = 25C)
Parameter Impressed voltage Power dissipation Operating temperature range Storage temperature range Symbol Limits 6.0 0.95 -10~+70 -55~+150 Unit V W
VCC max
Pd Topr Tstg
C C
Reduced by -7.6mW for each increase in Ta of 1C over 25C. PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.
!Recommended operating conditions (Ta = 25C)
Parameter Power supply voltage Symbol VCC Min. 4.5 Typ. - Max. 5.5 Unit V
Radiation resistance is not included in the design.
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BH7862FS
Multimedia ICs
!Block diagram
CTRAP
1
6dB 75 TEST
32 COUT
MUTE1
MUTE1
2 3
20k
31 TEST 30 MIXOUT 29 MIXFB
CIN
1.5-6M BPF
6dB
75
GND
4 5 6
CLAMP 6M LPF
YIN
28 GND 27 YTRAP 26 GND
6dB 75
VCC
GND
7 8 9
CLAMP 12M LPF
PYIN
25 YOUT 24 YFB 23 GND
GND
PYTRAP 10
VCC 11
6M LPF 20k
6dB
75
22 PYOUT 21 PYFB 20 GND
PbIN 12
GND 13
6M LPF 20k
PrIN 14
6dB
75
19 PbOUT 18 N.C.
MUTE2 15
MUTE2
PrTRAP 16
6dB
75
17 PrOUT
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Multimedia ICs
!Pin descriptions and Input / output circuits
Pin No. Pin name Input/output equivalent circuit Pin description
Signal input terminal. 3 12 14 CIN PbIN PrIN Input terminal for chroma signal and color-difference signal. Bias type input. The input impedance is 20k.
20k
Signal input terminal. 5 8 YIN PYIN Input terminal for luminance signal. Di clamp input.
Signal output terminal. 32 COUT Output terminal for chroma signal.
29 30
MIXFB MIXOUT
Signal output terminal. Output terminal for Y/C MIX signal.
24 25
YFB YOUT
Signal output terminal. Output terminal for luminance signal (interlaced type).
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BH7862FS
Multimedia ICs
Pin No. Pin name Input/output equivalent circuit Pin description
Signal output terminal. 21 22 PYFB PYOUT Output terminal for luminance signal (progressive type).
17 19
PrOUT PbOUT
Signal output terminal. Output terminal for color-difference signal.
1 27 10 16
CTPAP YTRAP PYTRAP PrTRAP
Terminal for LC resonance.
Power supply voltage. 6 11 VCC is separated into 6 pin and 11 pin. That is to say, C, MIX and Y are partitioned by 6 pin and PY, Pb and Pr by 11 pin. They and not connected internally. Connect them externally when using.
VCC
4 7 9 13 20 23 26 28
GND
Grounding terminal.
Mute control terminal. 2 MUTE1 C, MIX and Y are muted simultaneously by setting MUTE to "L".
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Multimedia ICs
Pin No. Pin name Input/output equivalent circuit Pin description
Mute control terminal. 12 MUTE2 PY, Pb and PR are muted simultaneously by setting MUTE to "L".
Test terminal. 31 TEST Usually, short-circuit this terminal to GND when using it. 18 N.C. -
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Multimedia ICs
!Electrical characteristics (unless otherwise noted, Ta=25C, VCC=5.0V) (The standard values (Typical values) below are design value for your reference.)
Parameter Circuit current 1 Circuit current 2 Maximum output level Voltage gain C MIX(C) MIX(Y) Y PY Pb Pr Frequency characteristics 1 C MIX1 MIX2 Y PY Pb Pr MUTE attenuation Input impedance MUTE holding voltage Frequency characteristics 2 C MIX1 MIX2 Y PY Pb Pr Group delay characteristics YC 6CH ACTIVE MUTE Symbol ICC1 ICC2 VOM GVC GVMIXC GVMIXY GVY GVPY GVPb GVPr GFC GFMIX1 GFMIX2 GFY GFPY GFPb GFPr MT ZIN VT1HH VT1HL GFCATT GFMIX1ATT GFMIX2ATT GFYATT GFPYATT GFPbATT GFPrATT GD1 Min. - - 2.6 5.0 5.0 5.0 5.0 5.0 5.0 5.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 -2.0 - 16 4.0 GND - - - - - - - - Typ. 90 17 3.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 0 0 0 0 0 0 0 -50 20 - - -40 -40 -40 -40 -40 -20 -20 5.0 Max. 110 25 - 7.0 7.0 7.0 7.0 7.0 7.0 7.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 - 24 VCC 1.0 - - - - - - - - Unit mA mA VPP dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB k V V dB dB dB dB dB dB dB ns Conditions No signal MUTE : OFF No signal MUTE : ON CIN : f=3.58MHz, YIN, PYIN, PbIN, PrIN : f=1MHz Output tertiary distortion : -30dB CIN : f=3.58MHz, 1VPP CIN : f=3.58MHz, 1VPP YIN : f=1MHz, 1VPP YIN : f=1MHz, 1VPP PYIN : f=1MHz, 1VPP PbIN : f=1MHz, 1VPP PrIN : f=1MHz, 1VPP CIN : f=1.5/3.58MHz, 6/3.58MHz, 1VPP CIN : f=1.5/3.58MHz, 6/3.58MHz, 1VPP YIN : f=6/1MHz, 1VPP YIN : f=6/1MHz, 1VPP PYIN : f=12/1MHz, 1VPP PbIN : f=6/1MHz, 1VPP PrIN : f=6/1MHz, 1VPP CIN : f=3.58MHz, 1VPP YIN, PYIN, PbIN, PrIN : f=1MHz, 1VPP CIN, PbIN, PrIN input terminal MUTE OFF MUTE ON CIN : f=27/3.58MHz, 1VPP CIN : f=27/3.58MHz, 1VPP YIN : f=27/1MHz, 1VPP YIN : f=27/1MHz, 1VPP PYIN : f=54/1MHz, 1VPP PbIN : f=27/1MHz, 1VPP PrIN : f=27/1MHz, 1VPP YIN : f=1MHz, VIN=1VPP CIN : f=3.58MHz, VIN=1VPP GD difference between Y and C PYIN : f=1MHz, VIN=1VPP PbIN(PrIN) : f=1MHz, VIN=1VPP GD difference between PY and Pb (Pr) 1 VPP standard staircase signal 1 VPP standard staircase signal YIN : f=1MHz, 1VPP CIN : f=3.58MHz, 1VPP PYIN : f=1MHz, 1VPP Pb(Pr) : f=1MHz, 1VPP Pb(Pr) : f=1MHz, 1VPP 100% white video signal
1
2
PYPb(Pr) Differential gain Differential phase Crosstalk between channels CY Pb(Pr)PY PbPr C/N
GD2 DG DP CT1 CT2 CT3 VN
- - - - - - -
5.0 1.0 0.5 -50 -60 -60 -75
- - - - - - -
ns % deg dB dB dB dB
1 Add the sine wave of "f=1MHz (C : f=3.58MHz)" to the input. VIN and adjust the input level so that the tertiary distortion of output can be -30dB. Then, the output voltage shall be a maximum output level VOM (VPP). 2 Measure the input voltage VIN50 (V) and input open circuit voltage VIN (V) when 50A has applied to the input CIN, PbIN and PrIN. Then, the input impedance ZIN is as follows : ZIN=|VIN50-VIN| / 50 [k]
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!Measurement circuit
75 75 0.68 75 COUT1
1
51p 6dB 75 TEST
32
0.1 75 75 MUTE1
COUT2
MUTE1 0.1 CIN 75
2 3
20k
31
75 100 75 75 22
COUT3
1.5-6M BPF
6dB
75
30
MIXOUT1
4
1 YIN
29
6M LPF
75 75 MIXOUT2
5
75
28
0.68
6
100 0.1 CLAMP
27
51p 75
7
1
CLAMP 12M LPF
26
75 100 6dB 75 75 75 22 75 75 YOUT3 YOUT2 YOUT1
8
PY/CYIN 75
25 24
9
0.39
10
22p
23
100 75 75 PY/CYOUT1 6dB 75
11
100 0.1
22
22 75 75 PY/CYOUT2
12
Pb/CbIN 75 47 20k
6M LPF
21 20
75 75 Pb/CbOUT1
13
47
14
Pr/CrIN 75 20k
6M LPF
330 6dB 75
75 75 Pb/CbOUT2
19 18
330 75 75 75 75 Pr/CrOUT2 Pr/CrOUT1
15
MUTE2
MUTE2
16
6dB
75
17
Fig.1
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Multimedia ICs
!Application example
75 COUT1 0.68 75
1
51p 6dB 75 TEST
32
0.1 75 MUTE1
COUT2
MUTE1 0.1 CIN 75
2 3
20k
31
100 75
COUT3
1.5-6M BPF
6dB
75
30
MIXOUT1 22
4
1 YIN
29
6M LPF
75 MIXOUT2
5
75
28
0.68
6
100 0.1 CLAMP
27
51p 75
7
1
CLAMP 12M LPF
26
YOUT1 100 6dB 75 75 YOUT2 22 75 YOUT3
8
PY/CYIN 75
25 24
9
0.39
10
22p
23
100 75 PY/CYOUT1 6dB 75
11
100 0.1
22
22 75 PY/CYOUT2 75
12
Pb/CbIN 75 47 20k
6M LPF
21 20
Pb/CbOUT1
13
47
14
Pr/CrIN 75 20k
6M LPF
330 6dB 75
75 Pb/CbOUT2
19 18
330 75 Pr/CrOUT1 75 Pr/CrOUT2
15
MUTE2
MUTE2
16
6dB
75
17
Fig.2
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BH7862FS
Multimedia ICs
!Operation notes (1) Output terminal load resistance can be driven in three channels in SY signal and in two channels in any other signals. Use it within the allowable dissipation range. (2) Minimize the common impedance of power supply line of 6 pin and 11 pin. (3) Inductor and capacitor of series resonance can be removed. Treat them with great care when removing them, because the terminal may catch noise component. Even if they are removed, attenuation in TRAP frequency are not expected so much.
!External dimensions (Units : mm)
13.60.2
32 17
7.80.3 5.40.2
1.80.1
1
16
0.150.1 0.1
0.11
0.8
0.360.1
SSOP-A32
0.3Min.
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