Sharp HT-CN300 - Function Table of IC

HT-CN300
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FUNCTION TABLE OF IC
IC401 VHiLC74763/-1: OSD. (LC74763)
1 VSS GND.
2 XTAL IN 1 Crystal and capacitor connection in the crystal oscillator for an internal sync signal.
3 XTAL OUT 1 Crystal and capacitor connection in the crystal oscillator for an internal sync signal.
4* HSYNC OUT Horizontal sync signal output (AFC).
5* XTAL IN 2 Crystal and capacitor connection in the crystal oscillator for an internal sync signal.
6* XTAL OUT 2 Crystal and capacitor connection in the crystal oscillator for an internal sync signal
7* VSYNC OUT Vertical sync signal output.
8 CS Vertical sync signal output.
9 SIN Serial data input (hysteresis input).
10 SCLK Serial data input clock.
11 SECMA SECAM mode switching at input.
12 526/625 Scan line switching (525/625) at input.
13 NTSC/PAL Color NTSC/PAL switching.
14 3.58/4.43 3.58/4.43 MHz FSC switching.
15 RET System reset input (active=“L”) (hysteresis input).
16 CV OUT Composite video signal output.
17 VDD 2 Power supply for creating composite video signal levels.
18 CV IN Composite video signal input.
19* CV CR SECAM chrominance signal input.
20 SYNC IN Video signal input in the built-in sync separation circuit.
21* SEPC Bias input in the built-in sync separation circuit.
22 VSS GND.
23 PD OUT AFC control voltage output.
24 AMP IN Filter.
25 AMP OUT Filter.
26 FC AFC control voltage input.
27 VCON IN Coil and capacitor connection in the LC oscillator for VCO.
28 VCO OUT Coil and capacitor connection in the LC oscillator for VCO.
29* SYNC DET EX-NOR output by horizontal sync signals (AFC) and CSYNC (sync separation).
30 VDD 1 Power supply (+5V: digital)
Port NamePin No.
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
30
VDD1
1
VSS
29
SYNCDET
2
XTALIN1
28
VCOOUT
3
XTALOUT1
27
VCOIN
4
HSYNCOUT
26
FC
5
XTALIN2
25
AMPOUT
6
XTALOUT2
24
AMPIN
7
VSYNCOUT
23
PDOUT
8
CS
22
VSS
9
SIN
21
SEPC
10
SCLK
20
SYNCIN
11
SECAM
19
CVCR
12
525/625
18
CVIN
13
NTSC/PAL
17
VDD2
14
3.58/4.43
16
CVOUT
15
RST
Figure 38 BLOCK DIAGRAM OF IC