TDA8787A 查看數據表（PDF） - Philips Electronics

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TDA8787A

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

Philips Electronics 

Philips Semiconductors

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

interface for CCD cameras

Product specification

TDA8787A

CHARACTERISTICS

VCCA = VCCD = 3.0 V; VCCO = 2.6 V; fpix = 18 MHz; Tamb = −20 to +75°C; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP. MAX. UNIT

Supplies

VCCA

analog supply voltage

2.7

3.0

VCCD

digital supply voltage

2.7

3.0

VCCO

digital outputs stages

supply voltage

2.5

2.6

ICCA

analog supply current

all clamps active

ICCD

digital supply current

−

50

−

13

ICCO

digital outputs supply

CL = 20 pF on all data outputs; −

1

current

input ramp response time is

800 µs

Ptot

total power consumption VCCA = VCCD = VCCO = 3 V

−

190

VCCA = VCCD = VCCO = 2.7 V −

170

Digital inputs

3.6 V

3.6 V

3.6 V

60 mA

17 mA

2

mA

−

mW

−

mW

INPUTS: PINS STDBY, CLPDM, CLPOB, SCLK, SDATA, SEN, VSYNC, OE, CLK AND BLK

VIL

LOW-level input voltage

VIH

HIGH-level input voltage

Ii

input current

0 ≤ Vi ≤ VCCD

0

−

2.2

−

−2

−

INPUTS: PINS SHP AND SHD

VIL

LOW-level input voltage

VIH

HIGH-level input voltage

Ii

input current

0 ≤ Vi ≤ VCCD

0

−

2.2

−

−10

−

Clamps

0.6 V

5.0 V

+2 µA

0.6 V

5.0 V

+10 µA

GLOBAL CHARACTERISTICS OF THE CLAMP LOOPS

tW(clamp)

clamp active pulse width PGA input code = 255 for

12

−

in numbers of pixels

maximum 4 LSB error

−

pixels

INPUT CLAMP: PIN CLPDM

gm(CDS)

CDS input clamp

transconductance

1.5

2.7

3.5 mS

OPTICAL BLACK CLAMP: PIN CLPOB

Gshift

gain from CPCDS1 and 2

−

to PGA inputs

ILSB(cp)

charge pump current for PGA input code = 0

−

±1 LSB error at ADC

PGA input code = 383

−

output

0.27

±20

±0.60

−

−

µA

−

µA

2000 Nov 14

8

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