TDA8752 Datasheet, PDF (15/36 Pages) NXP Semiconductors – Triple high speed Analog-to-Digital Converter ADC

Philips Semiconductors
Triple high speed Analog-to-Digital
Converter (ADC)
Product specification
TDA8752
I²C-bus and 3-wire serial bus interface
The I²C-bus and 3-wire serial buses control the status of the different control DACs and registers. Control pin DIS
enables or disables the full serial interface function (disable at HIGH level). Four ICs can be used in the same system
and programmed by the same bus. Therefore, two pins (ADD1 and ADD2) are available to set each address respectively,
for use with the I²C-bus interface. All programming is described in Chapter “I²C-bus and 3-wire interfaces”.
handbook, full pagewidth
video signal
CLP
255
digitized
video
signal
code 64
code 0
code −63.5
clamp
programming
Fig.7 Clamp definition.
MGG368
handbook, full pagewidth
Ncoarse
code
ADC output
code
127
coarse
99
register
value
(67 codes) ₃₂
G(max)
0
0.156 = ^{Vref 0.2}
16
255
G(min)
227
160
128
0.6
Vi _(p-p)
2
MGG366
Fig.8 Coarse gain control.
1999 Mar 09
15