TDA9952 Просмотр технического описания (PDF) - Philips Electronics

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производитель

TDA9952

10-bit, 3.0 V, 25 Msps analog-to-digital interface for CCD cameras

Philips Electronics 

Philips Semiconductors

10-bit, 3.0 V, 25 Msps analog-to-digital

interface for CCD cameras

Preliminary specification

TDA9952

CHARACTERISTICS

VCCA = VCCD = 3.0 V; VCCO = 2.5 V; fpix = 25 MHz; Tamb = −20 to +75 °C; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX. UNIT

Supplies

VCCA

analog supply voltage

2.7

VCCD

digital supply voltage

2.7

VCCO

digital outputs supply

2.2

voltage

ICCA

analog supply current

all clamps active

−

ICCD

digital supply current

−

ICCO

digital outputs supply

CL = 10 pF on all data

−

current

outputs; input ramp of

800 µs duration

Ptot

total power consumption VCCA = VCCD = 3 V;

−

VCCO = 2.5 V

VCCA = VCCD = 2.7 V;

−

VCCO = 2.2 V

standby mode

−

Digital inputs

3.0

3.6

V

3.0

3.6

V

2.5

3.6

V

43

−

mA

2.0

−

mA

0.5

−

mA

135

−

mW

115

−

mW

4.5

−

mW

PINS SHP, SHD AND CLK (REFERENCED TO DGND)

VIL

LOW-level input voltage

VIH

HIGH-level input voltage

Ii

input current

0 ≤ Vi ≤ 5.5 V

Ci

input capacitance

0

−

2.0

−

−3

−

−

−

PINS CLPDM, CLPOB, SEN, SCLK, SDATA STBY, OE, BLK AND VSYNC

VIL

LOW-level input voltage

VIH

HIGH-level input voltage

Ii

input current

0 ≤ Vi ≤ 5.5 V

0

−

2.0

−

−2

−

Clamps

0.8

V

5.5

V

+3

µA

2

pF

0.8

V

5.5

V

+2

µA

GLOBAL CHARACTERISTICS OF THE CLAMP LOOPS

tW(clamp)

clamp active pulse width in PGA code = 383 for

15

−

number of pixels

maximum 6 LSB error for a

CPCDS capacitance

of 1 µF; clamp code = 32

−

pixels

INPUT CLAMP (DRIVEN BY CLPDM)

gm(CDS)

CDS input clamp

transconductance

−

15

−

mS

2002 Aug 21

8

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