Pin Connections And Short Descriptions - Toshiba 29VH27E Service Manual

12. Ground
13. Output :
14. Output :
15. Output :
16. Output :
17. Output :
18. Output :
19. Ground
20. Input :
14.11.VPC3230D
14.11.1.General Description
The VPC 323xD is a high-quality, single-chip video front-end, which is targeted for 4:3 and 16:9, 50/60-
Hz and 100/120 Hz TV sets. It can be combined with other members of the DIGIT3000 IC family (such
as DDP 331x) and/or it can be used with 3rd-party products. The main features of the VPC 323xD are;
– high-performance adaptive 4H comb filter Y/C separator with adjustable vertical peaking
– multi-standard color decoder PAL/NTSC/SECAM including all substandards
– four CVBS, one S-VHS input, one CVBS output
– two RGB/YC C component inputs, one Fast Blank (FB) input
r b
– integrated high-quality A/D converters and associated clamp and AGC circuits
– multi-standard sync processing
– linear horizontal scaling (0.25 ... 4), as well as non-linear horizontal scaling 'Panorama-vision'
– PAL+ preprocessing
– line-locked clock, data and sync, or 656-output interface
– peaking, contrast, brightness, color saturation and tint for RGB/ YC
– high-quality soft mixer controlled by Fast Blank
– PIP processing for four picture sizes (1/4, 1/9, 1/16 or 1/36 of normal size) with 8-bit resolution
– 15 predefined PIP display configurations and expert mode (fully programmable)
– control interface for external field memory
2
– I C-bus interface
– one 20.25-MHz crystal, few external components
– 80-pin PQFP package

14.11.2.Pin Connections and Short Descriptions

NC = not connected
LV = if not used, leave vacant
X = obligatory; connect as described in circuit diagram
SUPPLYA = 4.75...5.25 V, SUPPLYD = 3.15...3.45 V
Pin No. Pin Name
PQFP
80-pin
1 B1/CB1IN
2 G1/Y1IN
3 R1/CR1IN
4 B2/CB2IN
5 G2/Y2IN
6 R2/CR2IN
7 ASGF
8 FFRSTWIN
9 V
SUPCAP
10 V
SUPD
11 GND
D
12 GND
CAP
13 SCL
14 SDA
15 RESQ
16 TEST
17 VGAV
18 YCOEQ
19 FFIE
5.5Vpp, Min : 4.5Vpp
5.5Vpp, Min : 4.5Vpp
5.5Vpp, Min : 4.5Vpp
5.5Vpp, Min : 4.5Vpp
5.5Vpp, Min : 4.5Vpp
5.5Vpp, Min : 4.5Vpp
Max : 2Vpp, Input Current : 1mA, Max : 3mA
Type Connection
(if not used)
IN VREF
IN VREF
IN VREF
IN VREF
IN VREF
IN VREF
X
IN LV or GND
OUT X
SUPPLYD X
SUPPLYD X
OUT X
IN/OUT X
IN/OUT X
IN X
IN GND
D
IN GND
D
IN GND
D
OUT LV
C
r
Short Description
Blue1/Cb1 Analog Component Input
Green1/Y1 Analog Component Input
Read1/Cr1 Analog Component Input
Blue2/Cb2 Analog Component Input
Green2/Y2 Analog Component Input
Read2/Cr2 Analog Component Input
Analog Shield GND
F
FIFO Reset Write Input
D
Digital Decoupling Circuitry Supply Voltage
Supply Voltage, Digital Circuitry
Ground, Digital Circuitry
Digital Decoupling Circuitry GND
2
I C Bus Clock
2
I C Bus Data
Reset Input, Active Low
Test Pin, connect to GND
VGAV Input
Y/C Output Enable Input, Active Low
FIFO Input Enable
17
and CVBS/ S-VHS
b
D