
ASAHI KASEI 
[AK4706] 
MS0507-E-00 
2006/05 
- 6 - 
PIN/FUNCTION 
No. 
1 
2 
3 
4 
Pin Name 
HDY 
HDPR 
HDPB 
VVD3 
I/O 
O 
O 
O 
- 
Function 
Green/Y Output Pin 
Red/Pr Output Pin 
Blue/Pb Output Pin 
Video Power Supply Pin #3. 5V. 
Normally connected to VVSS3 with a 0.1
μ
F ceramic capacitor in parallel 
with a 10
μ
F electrolytic cap. 
Composite Output Pin for RF modulator 
Composite/Luminance Output Pin for VCR 
Fast Blanking Output Pin for TV 
Chrominance Output Pin for VCR 
Video Ground Pin #2. 0V. 
Composite/Luminance Output Pin for TV 
Video Power Supply Pin #2. 5V. 
Normally connected to VVSS with a 0.1
μ
F ceramic capacitor in parallel with 
a 10
μ
F electrolytic cap. 
Red/Chrominance/Pr Output Pin for TV 
Green/Y Output Pin for TV 
Blue/Pb Output Pin for TV 
Video Ground Pin #1. 0V. 
Video Current Reference Setup Pin 
Normally connected to VVD1 through a 10k
±1% resistor externally. 
Video Power Supply Pin #1. 5V. 
Normally connected to VVSS with a 0.1
μ
F ceramic capacitor in parallel with 
a 10
μ
F electrolytic cap. 
Green/Y Input Pin for Encoder 
Red/Chrominance/Pr Input Pin for Encoder 
Blue/Pb Input Pin for Encoder 
Blue/Pb Input Pin for Encoder 
Green/Y Input Pin for Encoder 
Red/Chrominance/Pr Input Pin for Encoder 
Chrominance Input Pin for Encoder 
Composite/Luminance Input1 Pin for Encoder 
Composite/Luminance Input2 Pin for Encoder 
Composite/Luminance Input Pin for TV 
Composite/Luminance Input Pin for VCR 
Fast Blanking Input Pin for VCR 
Red/Chrominance/Pr Input Pin for VCR 
Green/Y Input Pin for VCR 
Blue/Pb Input Pin for VCR 
Interrupt Pin for Video Blanking  
Normally connected to VD(5V) through 10k
 resistor externally. 
Slow Blanking Input/Output Pin for VCR 
Slow Blanking Output Pin for TV 
Rch VCR Audio Input Pin 
Lch VCR Audio Input Pin 
Rch TV Audio Input Pin 
Lch TV Audio Input Pin 
Rch VCR Audio Output Pin 
Lch VCR Audio Output Pin 
Rch TV Audio Output Pin 
Lch TV Audio Output Pin 
5 
6 
7 
8 
9 
10 
11 
RFV 
VCRVOUT 
TVFB 
VCRC 
VVSS2 
TVVOUT 
VVD2 
O 
O 
O 
O 
- 
O 
- 
12 
13 
14 
15 
16 
TVRC 
TVG 
TVB 
VVSS1 
REFI 
O 
O 
O 
- 
O 
17 
VVD1 
- 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
32 
33 
ENCY2 
ENCPR 
ENCPB 
ENCB 
ENCG 
ENCRC 
ENCC 
ENCV 
ENCY 
TVVIN 
VCRVIN 
VCRFB 
VCRRC 
VCRG 
VCRB 
INT 
I 
I 
I 
I 
I 
I 
I 
I 
I 
I 
I 
I 
I 
I 
I 
O 
34 
35 
36 
37 
38 
39 
40 
41 
42 
43 
VCRSB 
TVSB 
VCRINR 
VCRINL 
TVINR 
TVINL 
VCROUTR 
VCROUTL 
TVOUTR 
TVOUTL 
I/O 
O 
I 
I 
I 
I 
O 
O 
O 
O