VSP2270

SLES019 − DECEMBER 2001

CCD SIGNAL PROCESSOR

FOR DIGITAL CAMERAS

1

www.ti.com

FEATURES

− Correlated Double Sampling (CDS)

− Programmable Black Level Clamping

−6-dB to 42-dB Gain Ranging

− Up to 28-MHz Conversion Rate

− No Missing Codes

− Low Voltage: 2.7 V to 3.6 V

− Low Power: 93 mW (Typ) at 3 V

− Stand-By Mode: 6 mW

APPLICATIONS

DESCRIPTION

The VSP2270 device is a complete mixed-signal

processing IC for digital cameras providing signal

conditioning and analog-to-digital conversion for the

output of a charge-coupled device (CCD) array. The

primary CCD channel provides correlated double

sampling (CDS) to extract the video information from

the pixels, –6-dB to 42-dB gain range with digital control

for varying illumination conditions, and black level

clamping for an accurate black level reference. Input

signal clamping and offset correction of the input CDS

are also performed. The stable gain control is linear in

dB. Additionally, the black level is quickly recovered

after gain change.

The VSP2270Y device is available in a 48-lead LQFP

package and the VSP2270M device is available in a

48-lead P-VQFN package. Both devices operate from

a single 3-V/3.3-V supply.

AVAILABLE OPTIONS

PRODUCT

PACKAGE

PACKAGE

OUTLINE

DESIGNATOR†

SPECIFIED

TEMPERATURE

RANGE

PACKAGE

MARKING

ORDERING

NUMBER‡

TRANSPORT

MEDIA

VSP2270Y

VSP2270Y

VSP2270M

VSP2270M

48-Lead LQFP

48-Lead LQFP

48-Lead P-VQFN

48-Lead P-VQFN

PT

PT

RGN

RGN

−25

°C to 85°C

−25

°C to 85°C

−25

°C to 85°C

−25

°C to 85°C

VSP2270Y

VSP2270Y

VSP2270M

VSP2270M

VSP2270Y

VSP2270Y/2K

VSP2270M

VSP2270M/2K

250-piece tray

Tape and reel

250-piece tray

Tape and reel

† A detailed drawing and a dimension table are located at the end of the data sheet.

‡ Models with a slash (/) are available only in tape and reel in the quantities indicated (e.g., /2K indicates 2,000 devices per reel). Ordering 2,000

pieces of the VSP2270Y/2K device will get a single 2,000-piece tape and reel.

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.

Copyright

 2001, Texas Instruments Incorporated

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.

Not Recommended For New Designs