STV6688 Datasheet, PDF (1/12 Pages) STMicroelectronics – Video Switch Matrix for TV Applications with S Terminal

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STV6688
Video Switch Matrix for TV Applications with S Terminal
Key Features
s I²C Bus Control
s Standby Mode
s 4 Y/CVBS Inputs (one for internal TV signal)
s 4 C Inputs (one for internal TV signal)
s 1 Y/C Adder
s 1 Y/CVBS and 1 C Output, each with 0 dB gain
s 1 CVBS Output with 6 dB gain and 150 Ω
Buffer for Monitor
s SYNC Bottom Clamp on all CVBS/Y and
Average Bias on C Inputs
s Bandwidth: 15 MHz
s Crosstalk: 50 dB (min.)
PRODUCT PREVIEW
PDIP20
Order Code: STV6688
PSO20
Order Code: STV6688A
General Description
The STV6688 is a highly-integrated I²C bus-
controlled video switch matrix, optimized for use in
color TV applications.
It is used to control the switching of 4 video signals.
These signals can be in Single Component form
(CVBS) or in Two Component form (Y/C). In both
cases, the STV6688 microcontroller provides a
CVBS signal for an external device (monitor).
Pin Connections
Y/CVBS_IN1
1
C_IN1
2
VCC_V
3
Y/CVBS_IN2
4
C_IN2
5
GND_V
6
Y/CVBS_IN3
7
C_IN3
8
VDD
9
SDA
10
20
DEC
19
Y/CVBS_IN_TV
18
C_IN_TV
17
VCC_B
16
CVBS_OUT
15
GND_B
14
Y/CVBS_OUT
13
C_OUT
12
GND
11
SCL
September 2003
This is preliminary information on a new product now in development. Details are subject to change without notice.
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