Changhong Electric PT4216, Service Manual, Page: 15 / 62

15
65,64,63 G/Y1~G/Y3 Green/luminance analog input
74,73,72 SOG/Y1~SOG/Y3 Sync on green//luminance input
77 REFR/Pr Red/red-chrominance channel reference input
80,79,78 R/Pr1~ R/Pr3 Red/red-chrominance channel analog input
89~92,97~101
112,121,122,
124,125,160~163 TST0~TST17 Reserved for test
93 PD Power-down control input
94 OE Output enable signal input
96 A0 I²C bus address control signal input
102 COAST PLL control signal input
103 GAIN Gain input
104 CLAMP Clamp input
105~107 VSYNC1~VSYNC3 Vertical synchronization signal input
108~110 H(C)SYNC1~
H(C)SYNC3
Horizon (color)synchronization signal input
111 CKEXT External clock input
113 TCLK Reserved for test
114 DIS I²C bus disable control signal input
118 SDA I²C bus data input/output
119 SCL I²C bus clock input
120,126,127,131
133,142,148, IGND Input digital ground
123,138,139,145
151,157 VDDI Input digital supply voltage
166 PL PLL disable signal output
167 DE Data enable output
168 HS Horizon synchronization signal input
169 VS vertical synchronization signal input
170 CS Color synchronization signal output
171 ORR/V Red / chrominance ADC output
172 ORB/U Blue /chrominance ADC output
173 ORG/Y Green / chrominance ADC output
174 VAI Video dynamic indication output
175 FREF Scan signal output
17 VREF Vertical reference input
2. 6
、
TA2024 general:
The TA2024 is a 10W/ch continuous average two-channel Class-T Digital Audio Power Amplifier IC using
Tripath’s proprietary Digital Power Processing™ technology. Class-T amplifiers offer both the audio fidelity of
Class-AB and the power efficiency of Class-D amplifiers. It has below feature:
z Mute control
z Temperature protect circuit
z Low noise switch
z Power supply:12V
Pin Function Descriptions
：
Pin(s) Name Function
2, 3 DCAP2, DCAP1 Charge pump switching pins
4, 9 V5D, V5A Digital 5VDC, Analog 5VDC
5, 8, 17 AGND1, AGND2, AGND3 Analog Ground
6 REF Internal reference voltage