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ICs for TV
AN5186FB
VIF/SIF IC for car-TV
s Overview
The AN5186FB is a VIF/SIF signal processing IC for in-car television. The video and sound are completely separated by the adoption of split carrier method. Also, high performance and high function have been realized by the incorporation of in-car circuits such as soft mute and SD.
33 34 23
(1.00)
12.000.20 10.000.20
Unit : mm
22
s Features
* Split carrier method sound detection circuit * Electric field detection and band detection type soft mute and SD * Multipath detection circuit * VIF uses quasi-synchronous detection which is invulnerable to electric field fluctuation. * Video output pin for diversity detection (no noise inverter)
44 1 (1.00) 0.80 11 0.35+0.10 -0.05
12
1.950.20
10.000.20 12.000.20
(1.00)
0.15 -0.05
+0.10
Seating plane
0.100.10
0 to 10 0.500.20
QFP044-P-1010C
s Applications
* In-car televisions
1
AN5186FB
s Block Diagram
SD out GND3 VCC3 VREF
ICs for TV
33
32
31
30
29
28
27
26
25
24
23
RF AGC 34 delay 35 36 37
OSC
Buffer amp.
1st limiter
Regulator
22
GND2
2nd limiter Regulator V cont. detector Mixer SD detector V cont. DC amp. Quad detector AFC amp. band detector Detector Noise inverter Mute amp.
21
20 19 V REF 18 V CC 17 16 V CC2 15 Multipath detector Video amp.2 Video amp.1 14 13 Multipath out
SIF in SIF in GND1 VIF in VIF in
38 39 40 41 VIF amp. RF AGC IF AGC
RF AGC 42 output (R)
VREG 43 Regulator AFT out 44
Carrier amp.
Multipath in
AFT
12
V cont. out1
10 Audio out
VCC1
VREF
Video out2
s Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 VCC1 VIF detection coil 1 VIF detection coil 2 SSC AFT detection coil AMDC adjustment Video output 2 Video output 1 SMTC1 Description Pin No. 10 11 12 13 14 15 16 17 18 Audio output SMTC2 S meter output AMDC input AMDC detection AMDC output AFC output VCC2 SIF detection coil Description
2
Video out1
11
1
2
3
4
5
6
7
8
9
ICs for TV
s Pin Descriptions (continued)
Pin No. 19 20 21 22 23 24 25 26 27 28 29 30 31 SMA1 SMA2 2nd limiter input GND2 1st limiter output SIF reference voltage V cont. adjustment 1st limiter bypass 1st limiter input GND3 SD output Mixer output VCC3 Description Pin No. 32 33 34 35 36 37 38 39 40 41 42 43 44 OSC1 OSC2 RF AGC delay adjustment IF AGC output IF AGC input SIF input 1 SIF input 2 GND 1 VIF input 1 VIF input 2 RF AGC output VIF reference voltage AFT output Description
AN5186FB
s Absolute Maximum Ratings
Parameter Supply voltage Supply current Power dissipation
*2 *1
Symbol VCC ICC PD Topr Tstg
Rating VCC1 , VCC2 , VCC3 ICC1 , ICC2 , ICC3 425 -30 to +85 -55 to +150 10.2 80
Unit V mA mW C C
Operating ambient temperature Storage temperature *1
Note) *1: Ta = 25C except power dissipation, operating ambient temperature and storage temperature. *2: The power dissipation is for the IC only when Ta = 85C in free air.
s Recommended Operating Range
Parameter Supply voltage Symbol VCC1 , VCC2 , VCC3 Range 7.2 to 10.0 Unit V
3
AN5186FB
s Electrical Characteristics at Ta = 25C, VCC1 = VCC2 = VCC3 = 8.0 V
Parameter VIF block Video detection output 1 Video detection output 2 Sync. peak value voltage 1 Sync. peak value voltage 2 Video frequency characteristic RF AGC operating sensitivity VO8 VO7 VP8 VP7 fC GRF Output -3dB frequency for 1 MHz Input level difference to become V42 = 1.5 7 V Video: 10 stairs - Y, m = 87.5% Video: 10 stairs - Y, m = 87.5% 1.7 1.7 2.7 2.7 6 2.2 -2 13 4.2 0 20 20 2.0 2.0 3.1 3.1 8 1.0 2.9 0 20 4.7 0.3 50 50 Symbol Conditions Min Typ
ICs for TV
Max
Unit
2.3 2.3 3.5 3.5 3.0 3.6 2 27 5.0 0.8 120 120
V[p-p] V[p-p] V V MHz dB mA A mV/kHz V V
RF AGC maximum sink current IAGCmax V34 = 2.5 V, V36 = 2 V RF AGC minimum sink current AFT detection sensitivity AFT maximum output voltage AFT minimum output voltage Video output resistance 1 Video output resistance 2 SIF block/mixer block S meter gradient 1 S meter gradient 2 Audio detection output Mix. conversion gain Audio output resistance S meter output resistance (pin 12) Circuit current * Design reference data
Note) The characteristic values below are theoretical values for designing and not guaranteed.
IAGCmin V34 = 2.5 V, V36 = 3 V AFT f = 25 kHz VAFTmax f = fP - 500 kHz VAFTmin f = fP + 500 kHz RO8 RO7 VS1 VS2 VOS VCG RO10 RO12 ICC VCC1 , VCC2 , VCC3 = 8.0 V V36 = 0 V V36 = 0 V f = 10.7 MHz f = 10.7 MHz VIN27 = 70 dB, f = 10.7 MHz, fM = 1 kHz, f = 25 kHz No modulation, VIN37 = 70 dB
1.3 1.45 125 24 260 60 51
1.7 1.85 160 30 380 160 63
2.1 2.25
V V
195 mV[rms] 500 260 75 dB mA
Parameter VIF block VIF input sensitivity VIF maximum allowable input Video S/N Differential gain Differential phase Intermodulation Black noise detection level Black noise clamp level
Symbol
Conditions Input level to become VO8 = -3 dB Input level to become VO8 = +1 dB BPF: 10k to 4M Video: 10 - stairs Video: 10 - stairs P/C = 2 dB, P/S = 12 dB Difference from sync. peak value voltage
Min 103 50 0 0 30
Typ
Max
Unit
VVS VVmax S/NV DG DP IM VBN
42 108 56 4 4 36 - 0.85 0.6
49 8 8
dB dB dB % % dB V V
VBNC Difference from sync. peak value voltage
4
ICs for TV
s Electrical Characteristics at Ta = 25C, VCC1 = VCC2 = VCC3 = 8.0 V (continued)
* Design reference data (continued)
Note) The characteristic values below are theoretical values for designing and not guaranteed.
AN5186FB
Parameter VIF block (continued)
Symbol
Conditions
Min
Typ
Max
Unit
AFT defeat SW operating voltage VAFTSW VIF input resistance VIF input capacitance VIF reference voltage SIF/mixer block S meter voltage 1 S meter voltage 2 S meter voltage 3 S meter voltage 4 AFC offset voltage Limiting sensitivity SD sensitivity SD bandwidth SIF input resistance SIF input capacitance Mixer output resistance S/N sensitivity VS1 VS2 VS3 VS4 VAFC VLIM SDS SDW RI37 RC37 RO30 NOUT VIN27 = without input VIN27 = 40 dB VIN27 = 70 dB VIN27 = 100 dB VIN27 = without input V0 = 0 dB, input for 3 dB down Input when SD output becomes 4.5 V or more at V4 = 2 V Bandwidth when SD output becomes 4.5 V or more at V4 = 2 V f = 54.25 MHz f = 54.25 MHz f = 10.7 MHz VIN37 = 22 dB no modulation, however, S is the output when 1 kHz 100% modulation. VIN27 = 70 dB, AM = 30% fM = 1 kHz, f = 25 kHz f = 100 kHz, VIN13 = 70 dB, 110 dB R140 C140 VREG f = 58.75 MHz f = 58.75 MHz
0.4
0.8 1.8 3.2 5.0
V k pF V
0.05 1.0 2.3 3.9 - 0.1 22
0.5 1.7 3.4 5.2 0 32 38 140 2.7 3.2 300 30
1.1 2.4 4.5 6.5 0.1 38
V V V V V dB dB kHz k pF dB
Audio S/N AM rejection ratio Total harmonic distortion Soft mute attenuation Multipath detection SIF reference voltage
S/NA AMR THD Mute VMP VREF
60 48 0
65 54 0.2 50 1.5 4.1
1.0
dB dB % dB V V
5
AN5186FB
s Terminal Equivalent Circuits
Pin No. 1 Equivalent circuit Description Power supply pin 1: Power supply pin for VIF Use range; 7.2 V to 10 V (typ. 8 V) VIF detection coil pin 1 VREG (5 V) 2.4 k 2.4 k
ICs for TV
voltage DC (typ. 8 V) [Z = low]
2
fp = 58.75M 0 phase shift DC, approx. 3.8 V [Z = 2.4 k]
2 3 3 VIF detection coil pin 2 fp = 58.75M 0 phase shift DC, approx. 3.8 V [Z = 2.4 k] 4 SD detection adjusting pin: Detection sensitivity adjustment for SD output DC approx. 2.1V [Z = 16 k]
VREF (4.2 V) VCC2 (8 V) 100 k 30 k
4 1 k 30 k
5
VREG (5 V)
AFT detection coil pin
fp = 58.75M 90 phase shift DC, approx. 2.6 V [Z = 6 k]
6 k 5
6
ICs for TV
s Terminal Equivalent Circuits (continued)
Pin No. 6 Equivalent circuit VCC2 (8 V) Description Multipath detection adjusting pin: Detection sensitivity adjustment of multipath output
AN5186FB
voltage DC approx. 1.9 V [Z = 6.8 k]
6
7
200
VCC1 (8 V)
Video output pin 2
AC approx. 2 V[p-p]
[Z = low] 8
Pin 7 8 200
Video output pin 1: Output after passing through noise inverter
9
Soft mute filter pin 1
DC 0 V to 4.1V [Z = 25 k]
25 k 200 k 9
10 Audio output pin AC (differs according to input conditions) [Z = 380 ]
200
200
10
7
AN5186FB
s Terminal Equivalent Circuits (continued)
Pin No. 11 Equivalent circuit Description Soft mute filter pin 2: Adjusting voltage of ASC and ATC, etc. 150 k 200 11 12 S meter voltage output pin 1
ICs for TV
voltage DC [Z = 200 ]
DC
200
12
0 Signal input level
[Z = 270 k]
13 VCC2 (8 V) 100 k 40 k 13 14 1.9 V 300 k 14 15
200
5V
Multipath input pin: Detection sensitivity is adjusted by external resistor.
DC approx. 1.9 V [Z = low]
Multipath detection pin
DC, approx. 1.2 V [Z = 6.3 k] Rising low Falling 330
Multipath output pin
15
DC approx. 1.9 V (0 V to 4.1 V) [Z = 18 k]
300
300
16
VCC2 (8 V)
AFC output pin
DC approx. 4.2 V
5V
16 29.5 k
3.5 V
VREF (4.2 V)
8
ICs for TV
s Terminal Equivalent Circuits (continued)
Pin No. 17 Equivalent circuit Description Power supply pin 2: Power supply pin for SIF Use range; 7.2 V to 10.0 V (typ. 8 V)
VCC2 (8 V) 18 500 18 pF VCC2 (8 V)
AN5186FB
voltage DC (typ. 8 V)
18
SIF detection coil pin
AC approx. 0.9 V[p-p] 90 phase shift DC, approx. 8 V [Z = high]
19
VCC2 (8 V) 100 k
Soft mute adjusting pin 1: Soft mute start point adjustment
DC (0 to VREF) (4.2 V) (voltage input from outside) [Z = high]
19
230
20
Soft mute adjusting pin 2: Soft mute gradient adjustment
DC [Z = low]
2 k 20 21 2nd limiter input pin DC = 0 V [Z = 300 ]
21 300
9
AN5186FB
s Terminal Equivalent Circuits (continued)
Pin No. 22 Equivalent circuit Description GND pin 2: GND pin for SIF
ICs for TV
voltage [Z = low]
22
23 300
VREF (4.2 V)
1st limiter output pin
23
AC fs = 10.7M DC approx. 4.0 V [Z = 500 ]
24
VCC2 (8 V)
SIF reference voltage: Reference voltage pin for SIF
DC approx. 4.2 V [Z = low]
VREF
24
25
S meter voltage adjusting pin
DC approx. 3.5 V [Z = low]
VREF (4.2 V)
25 26 VREF (4.2 V) 10 k 27 27 300 26 30 k 1st limiter input pin AC fs = 10.7M DC approx. 3.1 V [Z = 300 ] 1st limiter bias pin DC approx. 3.1 V [Z = 7.5 k]
10
ICs for TV
s Terminal Equivalent Circuits (continued)
Pin No. 28 28 Equivalent circuit Description GND pin 3: GND pin for mixer
AN5186FB
voltage [Z = low]
29
VCC2 (8 V)
SD output pin
5V
0V
200 10 k
[Z = 200 ]
29
30
VCC3 (8 V) 200
Mixer output pin
AC [Z = 200 ]
200
30
200
31
Power supply pin 3: Power supply pin for mixer Use range; 7.2 V to 10.0 V (typ. 8 V) 200 VCC3 (8 V) OSC input pin 1
DC (typ. 8 V) [Z = low] DC approx. 7.0 V [Z = 300 ]
32 800
300 33 5 k 5 k Pin 32 33 OSC input pin 2
DC approx. 4.4 V [Z = 5 k]
11
AN5186FB
s Terminal Equivalent Circuits (continued)
Pin No. 34 Equivalent circuit VREG (5 V) 200 Description RF AGC delay adjusting pin
ICs for TV
voltage DC approx. 4.4 V [Z = high]
34
30 k
35
VREG (5 V)
IF AGC output pin
DC [Z = high]
35
36
200
VREG (5 V)
IF AGC input pin
DC [Z = high]
36
30 k
37 VREG (5 V)
SIF input pin 1
6.7 k 38 37 38
3 k 3 k SIF input pin 2
AC f = fs (54.25 MHz) DC level approx. 2.7 V [Z = 3 k]
12
ICs for TV
s Terminal Equivalent Circuits (continued)
Pin No. 39 Equivalent circuit
39
AN5186FB
Description GND pin 1: GND pin for VIF
voltage [Z = low]
40 VREG (5 V)
VIF input pin 1
6 k 41 40 41
2 k 2 k VIF input pin 2: Input for VIF amp. and balanced input
AC f = fp (58.75 MHz) DC level approx. 2.6 V [Z = 2 k]
42
RF AGC output pin: VREG (5 V) Collector open output so that arbitrary bias is usable. (max. 12.5 V) 42 50 RF AGC adjustment 83 34 k 2 k IF AGC
DC
43
19 k
VIF reference voltage pin: Reference voltage pin for VIF
DC level approx. 5 V [Z = low]
43 1.2 V 6 k
13
AN5186FB
s Terminal Equivalent Circuits (continued)
Pin No. 44 Equivalent circuit
VREG (5 V)
ICs for TV
Description AFT output pin
voltage DC [Z = high]
44
s Application Circuit Example
SD out
GND3
31 V CC3
33
32
30
29
28
27
26
25
24
VREF 23
VREG RF AGC delay 34 OSC 35 36 37 Mixer SIF in GND1 38 39 40 41 VCC 42 VREG 43 44 RF AGC Multipath detector Video amp.2 Video amp.1 VIF amp. Detector Noise inverter IF AGC SD detector Buffer amp. 1st limiter Regulator
22
GND2
2nd limiter Regulator V cont. detector V cont. DC amp. Quad detector AFC amp. band detector Mute amp.
21
20 19 VREF
SIF in
18 VCC 17 16 VCC2 VCC 15 14 13 Multipath out
VIF in VIF in RF AGC output (R)
Regulator
Carrier amp.
Multipath in
AFT
AFT out
12
V cont. out1
10 Audio out
VREF 4
VCC1
Video out2
14
Video out1
11
1
2
3
5
6
7
8
9
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2001 MAR

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