TDA8757 datasheet(2/37 Pages) PHILIPS

2 / 37 page

Philips Semiconductors

TDA8757

Triple 8-bit ADC 170 Msps

Preliminary data

Rev. 07 — 28 February 2002

2 of 37

9397 750 09457

Applications

s RGB/YUV high-speed digitizing

s LCD panels drive

s LCD projection systems

s VGA to UXGA (1600

× 1200 at 60 Hz) modes.

Quick reference data

Table 1:

Quick reference data

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VCCA

analog supply voltage for PLL

and the RGB channels

4.75

5.0

5.25

VDDD

logic supply voltage for I2C-bus

and 3W-bus

4.75

5.0

5.25

VCCD

digital supply voltage

4.75

5.0

5.25

VCCO

output stages supply voltage

for PLL and the RGB channels

4.75

5.0

5.25

VCCA(PLL)

analog PLL supply voltage

4.75

5.0

5.25

VCCO(PLL)

output PLL supply voltage

4.75

5.0

5.25

ICCA

analog supply current for the

RGB channels

−

135

−

IDDD

logic supply current for I2C-bus

and 3W-bus

−

ICCD

digital supply current

−

ICCO

output stages supply current

−

ICCA(PLL)

analog PLL supply current

−

fclk

clock frequency

normal (Dmx = 0)

−−

110

MHz

de-multiplexed (Dmx = 1)

−−

170

MHz

fref(PLL)

PLL reference clock frequency

−

150

kHz

fPLL

output clock frequency range

−

170

MHz

INL

DC integral non-linearity

from analog input to

digital output; full-scale;

sinusoidal input;

fclk = 170 MHz

−±0.5

±1.5

LSB

DNL

DC differential non-linearity

from analog input to

digital output; full-scale;

sinusoidal input;

fclk = 170 MHz

−±0.4

±1

LSB

∆Gamp/∆T

ampliﬁer gain stability variation

with temperature

Vref = 2.5 V with

100 ppm/

°C maximum

−

325

−

ppm/

°C

ampliﬁer bandwidth

−3 dB; T

amb =25 °C

250

−−

MHz

tset(ADC+AGC)

settling time of the block

ADC + AGC

input signal settling

time <1 ns; settling to

1%; fi = 85 MHz

−

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