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STMicroelectronics Electronic Components Datasheet

TEA6425 Datasheet

VIDEO CELLULAR MATRIX

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. 6 VIDEO INPUTS - 8 VIDEO OUTPUTS
. 2 INTERNAL SELECTABLE YC ADDERS
. 15MHz BANDWIDTH @ -3dB
. SELECTABLE 0.5/6.5dB GAIN FOR EACH
OUTPUT
. HIGH IMPEDANCE SWITCH FOR EACH
OUTPUT (3-state operation)
. PROGRAMMABLE CLAMP MODE ON EACH
INPUT (sync bottom or average value)
. -60dB CROSSTALK @ 5MHz
. 4 SUB-ADDRESS CAPABILITY
. I2C BUS CONTROL
TEA6425
VIDEO CELLULAR MATRIX
DIP20
(Plastic Package)
ORDER CODE : TEA6425
DESCRIPTION
This device is intended for switching between video
and chroma signals such as CVBS, SVHS, base-
band CVBS, MAC. Each input clamp mode, each
output gain, all switching are controlled through the
I2C bus. The 8 outputscan be set separatelyin high
impedance state, to enable parallel DC connection
of several devices (up to 4).
PIN CONNECTIONS
SO20L
(Plastic Micropackage)
ORDER CODE : TEA6425D
IN 1
SDA
IN 2
SCL
IN 3
IN 4
SUB
IN 5
VCCP
IN 6
1
2
3
4
5
6
7
8
9
10
20 VCC
19 OUT 1
18 OUT 2
17 OUT 3
16 OUT 4
15 OUT 5
14 OUT 6
13 OUT 7
12 OUT 8
11 GND
May 1996
1/9


STMicroelectronics Electronic Components Datasheet

TEA6425 Datasheet

VIDEO CELLULAR MATRIX

No Preview Available !

TEA6425
BLOCK DIAGRAM
1
PRO G.
CLAMP
3
PRO G.
CLAMP
5
PRO G.
CLAMP
6
PRO G.
CLAMP
8
PRO G.
CLAMP
10
PRO G.
CLAMP
6 x8
MATRIX
S CL 4
S DA 2
S UB-ADDRES S 7
I2C
DECODER
VCC 1 9
VCC 2 2 0
TEA6425
0/6 0/6 0/6 0/6 0/6 0/6 0/6 0/6
dB dB dB dB dB dB dB dB
3 S TATE OUTPUTS
11 12 13 14 15 16 17 18 19
GND
OUTP UTS
CELLULAR MATRICE CONNECTIONS
1st/4 addresses
2nd/4 addresses
CVBS
or C
I2 C
DECODER
I2 C
DECODER
PROG.
CLAMP
6X8
Full MATRIX
IC1
ADDER
0dB
6dB
3 STATE
OUT
6X8
Full
MATRIX
IC2
IC3
IC4
8 OUTPUTS LINES
2/9


Part Number TEA6425
Description VIDEO CELLULAR MATRIX
Maker ST Microelectronics
Total Page 9 Pages
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