Daewoo DSC-3270E - Manual (Page 15)

14
5-2. VPS 3215C(Video Processor)
(3) Block Diagram
(4) Pin Descriptions
IC description
(1) Description
The VPC 3215C is a high-quality, single-chip video front-
end, which is targeted for 4:3 and 16:9, 100/120Hz TV
sets.
It can be conbined with other members of the DIGIT3000
IC family (such as CIP 3250A, DDP 3300A, TPU 3040)
and/or it can be used with 3rd-party products.
(2) Features
- all-digital video processing
- high-performance adaptive 4H comb filter Y/C separator
with adjustable vertical peaking
- multi-standard color decoder PAL/NTSC/SECAM
including all substandards
- 1 composite, 1 S-VHS input, 1 composite output
- 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 (VPC 3215)
- submicron CMOS technology
Pin 1 - Ground, Analog Front-End GND
Pin 2 - Ground, Analog Front-End GND
Pin 3 - CCU 5 MHz Clock Output CLK5
This pin provides a clock frequency for the TV microcon-
troller, e.g. a CCU 3000 controller, It is also used by the
DDP 3300A display controller as a standby clock.
Pin 4 - Standby Supply Voltage V
In standby mode, only the clock oscillator is active, GND
should be ground reference. Please activate RESQ before
powering-up other supplies Pins 6 and 5-XTAL1 Crystal
Input
F
F
STDBY
F
These pins are connected to an 20.25MHz crystal oscilla-
tor which is digitally tuned by integrated shunt capaci-
tances. The CLK20 and CLK5 clock signals are derived
from this oscillator. An external clock can be fed into
XTAL1. In this case, clock frequency adjustment must be
switched off.
Pin 7 - Ground, Analog Front-End GND
Pin 9 - Ground, Output Pad Circuitry GND
Pin 10 - Interlace Output, INTLC
This pin supplies the interlace information, 0 indicates first
field, 1 indicates second field.
F
P