TLV986

3-V, 10-BIT, 12.5 MSPS, AREA CCD SENSOR PROCESSOR

SLAS228 – JULY 1999

1

POST OFFICE BOX 655303

Power-Down Mode

<

±0.5 LSB Typical

<

±1 LSB Typical

0 dB to 36 dB Gain Range (0.1 dB/Step)

and Offset Calibration

Setting

applications

description

The TLV986 is a highly integrated monolithic analog signal processor/digitizer designed to interface the area

charge-coupled device (CCD) sensors in digital camera applications. The TLV986 performs all the analog

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

CCD sensor, and then digitizes the results with an on-chip high-speed analog-to-digital converter (ADC). The

key components of the TLV986 include: input clamp circuitry and a correlated double sampler (CDS), a

programmable gain amplifier (PGA) with 0 to 36 dB gain range, two internal digital-to-analog converters (DAC)

for automatic or programmable optical black level and offset calibration, a 10-bit, 12.5 MSPS pipeline ADC, a

parallel data port for easy microprocessor interface, a serial port for configuring internal control registers, two

additional DACs for external system control, and internal reference voltages.

Designed in advanced CMOS process, the TLV986 operates from a single 3-V power supply with a normal

power consumption of 140 mW and a 2 mW power-down mode.

Single 3-V operation, low power consumption, and fully integrated analog processing circuitry make the TLV986

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

The part is available in a 48-pin TQFP package and is specified over 0

_C to 70_C operating temperature range.

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

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PFB PACKAGE

(TOP VIEW)

TLV986CPFB