TLV987

3-V 10-BIT 27 MSPS AREA CCD SENSOR

SIGNAL PROCESSOR

SLAS211A – MARCH 1999 – REVISED SEPTEMBER 1999

1

POST OFFICE BOX 655303

Power-Down Mode

Typ

0-dB to 36-dB Gain Range (0.09 dB/step)

and Offset Calibration

Setting

applications

description

The TLV987 is a highly integrated monolithic analog signal processor/digitizer designed to interface the area

charge-coupled device (CCD) sensors in digital camera applications. The TLV987 performs all the analog

processing functions necessary to maximize the dynamic range, corrects various errors associated with the

CCD sensor, and then converts the results from analog to digital using the on-chip high-speed analog-to-digital

converter (ADC). The key components of the TLV987 include input clamp circuitry, a correlated double sampler

(CDS), and a programmable gain amplifier (PGA). The PGA has 0-dB to 36-dB gain range. In addition, the

TLV987 has two internal digital-to-analog converters (DACs) for automatic or programmable optical black level

and offset calibration. The TLV987 also has two additional DACs for external system control, and internal

reference voltages. The TLV987 has a parallel data port for easy microprocessor interface and a serial port for

configuring internal control registers.

Designed in advanced CMOS process, the TLV987 operates from a single 3-V power supply with a normal

power consumption of 200 mW and a 2 mW power-down mode.

Very high throughput rate, single 3-V operation, low power consumption, and fully integrated analog processing

circuitry make the TLV987 an ideal CCD sensor interfacing solution for digital camera applications.

The device is available in a 48-pin TQFP package and is characterized for operation over 0

°C to 70°C operating

free-air temperature range.

AVAILABLE OPTIONS

TA

PACKAGE

TA

TQFP (PFB)

0

°C to 70°C

TLV987CPFB

Copyright

© 1999, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

14 15

BLKG

TPP

TPM

AGND4

OBCLP

STBY

RESET

CS

SDIN

SCLK

ADCCLK

36

35

34

33

32

31

30

29

28

27

26

25

16

1

2

3

4

5

6

7

8

9

10

11

12

DIN

PIN

AGND2

DGND

D0

D1

D2

D3

D4

D5

17 18 19 20

47 46 45 44 43

48

42

40 39 38

41

21 22 23 24

37

13

PFB PACKAGE

(TOP VIEW)

TI is a trademark of Texas Instruments Incorporated.