TH-V70
LA73054 (IC601) : Video driver
1. Terminal layout & block diagram
363534333231302928272625242322212019
75 75
DRIVERDRIVER75
75 DRIVER
DRIVER
75 75
DRIVERDRIVER
LPF
LPF2 LPF1
2Step
Amp1
LPF2 LPF1 LPF2 LPF1
2Step
Amp4
C_OFFSETY/CLPF1SYNC
MIXSEP
DC_CTLLPF12Step2Step
2StepAmp5Amp6
Amp3CLAMPPEDESTAL
CLAMP2StepCLAMP
PEDESTALPEDESTAL
Amp2VCC
CLAMPCLAMPCLAMPREG
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2. Pin function
Pin No.SymbolI/OFunction
1,24,34VCC- Power supply
2COMPOSITE INI Composite video signal input (Not connect)
3SQUEEZE SWI Selecting squeeze mode
4LETTER-BOX SWI Selecting letter box mode
5MUTE1 SWI Composite/S signal mute selection
6CHROMA INI Chrominance signal input
7,17,20,22GND- Ground
26,27,29,32
8Y-1 INI Brightness signal input
9YC MIX SWI Y/C-MIX control
10RGB SWI Selection of a kind of signal (11pin)
11Y-2 INI Brightness signal input or baseband signal
12MUTE2 SWI Component signal mute selection
13LPF SWI Selection of a kind of component LPF
14Cb INI Component signal (Cb) input or baseband signal
15AMP-2 SWI Selecting amplifier gain for component signal
16Cr INI Component signal (Cr) input or baseband signal
18REGO Capacitor terminal for regulator
19DRIVE-2 SWI 2drive/1drive select for component signal
21Cr OUTO Component signal (Cr) output
23Cb OUTO Component signal (Cb) output
25Y-2 OUTO Brightness signal output
28Y-1 OUTO Brightness signal output
30C-DC OUTO DC voltage output (Not connect)
31CHROMA OUTO Chrominance signal output
33COMPOSITE OUTO Composite video signal output
35DRIVE SWI 2drive/1drive select for composite/S signal
36AMP-1 SWI Selecting amplifier gain for composite/S signal
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