TDA9203 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA9203 Datasheet PDF : 13 Pages
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TDA9203A
I2C BUS CONTROLLED 70MHz RGB PREAMPLIFIER
. 70MHz TYPICAL BANDWIDTH AT 4VPP OUT-
PUT WITH 12pF CAPACITIVE LOAD
. 5.5ns TYPICAL RISE/FALL TIME AT 4VPP
OUTPUT WITH 12pF CAPACITIVE LOAD
. POWERFULL OUTPUT DRIVE CAPABILITY
. BRT, CONT, DRIVE, OUTPUT DC LEVEL,
OSD CONTRAST, BACK-PORCH CLAMPING
PULSE WIDTH ARE I2C BUS CONTROLLED
. INTERNAL BACK-PORCH CLAMPING
PULSE GENERATOR
. OSD WHITE BALANCE TRACKING
. INTERNAL OSD SWITCHES
. BLANKING AND FAST-BLANKING INPUTS
. VERY LARGE DRIVE ADJUSTMENT RANGE
(48dB)
. SEMI-TRANSPARENT BACKGROUND ON
OSD PICTURE
. ABL CONTROL
SHRINK 24
(Plastic Package)
ORDER CODE : TDA9203A
PIN CONNECTIONS
DESCRIPTION
The TDA9203A is a digitaly controlled wideband
video preamplifier intended for use in mid range
color monitor. All controls and adjustments are
digitaly performed thanks to I2C serial bus. Con-
trast, brightness and DC output level of RGB sig-
nals are common to the 3 channels and drive
adjustment is separate for each channel.Three I2C
gain controlled OSD inputs can be switched with
RGB signals using fast blanking command. Clamp-
ing of RGB signals is performed thanks to a flexible
integrated system. The white balance adjustment
is effective on brightness, video and OSD signals.
The TDA9203A works for application using AC or
DC coupled CRT driver.
The ABL input provides a 12dB Max. attenuation
on the current contrast value according average
beam limitation voltage.
Because of its features and due to component
saving the TDA9203A leads to a very performant
and cost effective application.
June 1998
IN1
1
OSD1
2
AVDD
3
IN2
4
OSD2
5
AGND
6
IN3
7
OSD3
8
ABL
9
LGND
10
SDA
11
SCL
12
24
HSYNC
23
PVCC1
22
OUT1
21
PGND1
20
PVCC2
19
OUT2
18
PGND2
17
PVCC3
16
OUT3
15
PGND3
14
BLK
13
FBLK
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