
I2 C Bus Control Lineup
LA76810 Series
LA76835A
Overview
The LA76810 series are I2C bus controller ICs that support the different TV broadcast formats used worldwide and aim for rationalization of color TV set design, improved manufacturability, and lower total costs.
Single crystal multiformat system that supports the different TV broadcast formats used worldwide.
ICs optimal for each individual broadcast standard deployed as a
·Multiformat system: LA76818A (YCbCr support), LA76828N (YCbCr and E/W support)
·NTSC system: LA76843N/LA76835A (YCbCr and E/W support), LA76835NM (YCbCr and E/W support)
Adjustment-free
Adjustment-free
Simplified SG
Supply voltage: VCC = 5 V/9 V
Package: DIP54S (600mil), QIP80E (14 20) (LA76835NM only)
I2 C Bus Control Lineup
LA76810 Series
LA76835NM 
Overview
The LA76810 series are I2C bus controller ICs that support the different TV broadcast formats used worldwide and aim for rationalization of color TV set design, improved manufacturability, and lower total costs.
Single crystal multiformat system that supports the different TV broadcast formats used worldwide.
ICs optimal for each individual broadcast standard deployed as a
·Multiformat system: LA76918A (YCbCr support), LA76828N (YCbCr and E/W support)
·NTSC system: LA76843N/LA76835A (YCbCr and E/W support), LA76835NM (YCbCr and E/W support)
Simplified SG
Supply voltage: VCC = 5 V/9 V
Package: DIP54S (600mil), QIP80E (14 20) (LA76835NM only)
Functions and Features | Functions and Features |
VIF/SIF
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·RF AGC/video level/FM level control
Black stretch, sharpness control with coring on/off control,
Chrominance bandpass filter, demodulation angle control
E/W support
Block Diagram
S | EXT |
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OARRIER | AUDIO | VIDEO | IN |
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| C_ IN CR CB | FBP IN |
OUT | IN | OUT | SVO | CWOUT |
VIF/SIF
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·RF AGC/video level/FM level control
Black stretch, sharpness control with coring on/off control,
Chrominance bandpass filter, demodulation ratio and angle control, blue stretch
E/W support
Block Diagram
VIDEO OUT | SVO | VM IN | FSC OUT |
| 1000P |
| 3K |
10P | 0.01∝F |
54 53
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| 600 |
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| 510 |
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| + | F10∝ | +∝0.47F |
| VCO | 0.47∝F | + | 510 | F2.2∝ |
| 680K | 1∝F | 47∝F | 0.01∝F | 1∝F |
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| 330 |
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| VCC 5V |
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| GND |
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| 510 |
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| ∝F |
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| 16P | 0.47∝F | 24k |
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| 24K |
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| 16P |
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| 10k |
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| ∝F | ∝F | REF |
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| 0.047∝F (M) |
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| HOR | 0.01∝F | + | 1 | + | 1 | (METULFILM) | VCC 9V |
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| 0.47∝F |
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| 2.2∝F | 510 | ∝F1 | 0.01 |
| 0.01∝F | 75 |
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| ∝F1 | 0.0471∝F |
| 24k | 10k |
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| 1∝F | 24K |
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| 64 | 63 | 62 | 61 | 60 | 59 | 58 | 57 | 56 |
| 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 |
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| NC |
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41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 31 |
| 30 |
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| GND |
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| CLMP |
| CLMP |
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| GND | 40 |
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| 330 |
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| 1∝F |
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BPF
SPLL
A2C
PLL
VIDEO
AMP
CLMP | CLMP |
VIDEO
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| FBP | EXT AUDIO INT |
| + | 66 | VIDEO |
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| VCO | KIL |
| 39 | + | CB |
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| AMP |
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| 10∝F |
| VIDEO | VIDEO | APC1 | TINT |
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VXO | CW |
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| 660 | 67 |
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| S OARRIER OUT |
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| HOR |
| 10P | 68 | SPLL |
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| HOR | VM | 37 | 5.6k | VM OUT | ||
APC1 | CLMP |
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| CONTROL |
| VCO |
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| VCO |
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VCC 5V
GND
BPF
LIM
AMP
TRAP
SW
SND
TRAP
AFT
SW
TRAP
C SW
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| 69 |
| EPF | EPF | SW |
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| 36 |
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| 1000P |
| IST AMP | ACC |
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| HOR | ||||
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| 1/256 | FEP | RESET |
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BPF | ACC | DEMO | CLAMP | CB.CR |
| 70 | NC |
| LIM | BPF | KILLER | 35 | |||||
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(BYPASS) | KIL | SW |
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| ANP |
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| TRAP | 2ND AMP | HOR |
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| HOR |
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| SEP | AFC2 | CPU | 4.7k REF | |||||
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| COLOR | AUTO | TINT |
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| BPF | C/D | |||||||
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| FLESH | C/D | 10∝F |
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| RESET |
| ) |
VCC 9V
GND
FM
DET
IF AGC
VIDEO
DET
VIF
DELAY
LINE SYNC
SEP
| PEAKING |
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| BLACK |
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| CORING |
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| STRETOH |
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| 72 | NC |
| FM | DELAY |
| CLMP |
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| PHASE | 33 | 10k | FEP IN | |
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| LINE | DEMO |
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| 73 |
| DC | DET | DELAY |
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| SHIFTER | VDD 32 |
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| AFC1 | AUDIO OUTPUT |
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| 100 | ∝ |
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DC |
| RGB |
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| PEAKING | COLOR | CB.CR |
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CONTRAST | VER |
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| CORING | TINT |
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REST | AFC2 |
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| CLAMP | SW |
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| OUT |
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BRIGHT | MATRIX | SEP |
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| 330 | (M) |
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| FM OUT |
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| BLACK |
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| 30 |
| 15000P |
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OSD |
| OSD | VER | PHASE |
| 0.01∝F(M) |
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| FLESH | VER |
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| 3.3k | 1∝F | 150 |
AUDIO OUTPUT FM OUT
RF AGC
IF IN
SW |
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DC |
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VOL |
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1 | 2 |
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| 30K |
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RF AGC |
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3 | 4 | 5 | 6 | 7 | 8 | 9 |
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0.022∝F |
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(M) |
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| 100K | 100 | 100 |
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| 100P | 100P |
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| 1∝F | 100K | 0.1∝F | 0.01∝F | ||||
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| FILTER |
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FIX GAIN |
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| SW |
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| SHIFTER |
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| 76 | IF AGC | VIF | DC | CONTRAST | RGB | SEP | VCC | 29 + | 10∝F | 0.01∝F | |
ERIGHT |
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| RF AGC |
| 77 | RF AGC |
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| 28 | 0.47∝F | ||||||
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| HOR |
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| VER | VER | 0.47∝F | |||||
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| E / W | VER |
| HOR |
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| OUT |
| 30k | 78 |
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| C/D | RAMP | 27 |
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CLAMP |
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| OUT | RAMP | VCC |
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| OSD |
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| OSD |
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| FIX GAIN |
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| VCC |
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| 79 |
| AFT | ERIGHT |
| E/W | 26 |
| EW OUT | |||||
14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 26 | 27 |
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| 10∝F | + | 0.01∝F | 150 | IF IN |
| 80 IF GND |
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| 25 |
| VSI ZE 0OMP | |
0.01∝F (M) | 0.01∝F (M) | 0.0∝F (M) | 10∝F | 0.01∝F |
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| GND | BUS ABL | OL AMP | HS/VS |
| GND |
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75 | 75 | 75 | 10k | (M) | F0.33∝ | 0.33∝F | (M) | 0.015∝F |
| 1 | 2 | 3 | 4 | 5 | F1∝ | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| 1∝F |
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| 100K | 0.1∝F | 100 100P | 100 | 100P | 0.01∝F(M) | 75 | 0.01∝F(M) 75 | 0.01∝F(M) 75 | 10k | 20k | 20k10∝F |
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| (M) |
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| 3.0K Ω |
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| 0.01∝F | 12K | 100K |
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| 100∝F |
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AFT | IB | R | G | B | FB | R | G | B | EW | VER | H OUT |
| IN | IN | IN | IN | IN | OUT | OUT | OUT | OUT | OUT |
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AFT | ABL R IN G IN B IN FB IN HS VS | R OUT G OUT B OUT |
21 SANYO TV . VCR | SANYO TV . VCR 22 |