VSP5620

VSP5621

VSP5622

www.ti.com

SBES022

– JULY 2011

16-Bit, 4-Channel, CCD/CMOS Sensor

Analog Front-End with LED Driver

Check for Samples: VSP5620, VSP5621, VSP5622

1

FEATURES

23

•

Four-Channel CCD/CMOS Signal: 2-Channel,

•

Power (at 4-channel, LVDS, 3.3 V, without LED

3-Channel, and 4-Channel Selectable

Driver):

•

Power Supply: 3.3 V Only, Typ

– VSP5620: 320 mW at 35 MSPS

(Built-in LDO, 3.3 V to 1.8 V)

– VSP5621: 406 mW at 50 MSPS

•

Maximum Conversion Rate:

– VSP5622: 523 mW at 70 MSPS

– VSP5620: 35 MSPS

– VSP5621: 50 MSPS

APPLICATIONS

– VSP5622: 70 MSPS

•

Copiers

•

16-Bit Resolution

•

Facsimile Machines

•

CDS/SH Selectable

•

Scanners

•

Maximum Input Signal Range: 2.0 V

•

Analog and Digital Hybrid Gain:

DESCRIPTION

– Analog Gain: 0.5 V/V to 3.5 V/V in

The

VSP5620/21/22

are

high-speed,

3/64-V/V Steps

high-performance, 16-bit analog-to-digital-converters

(ADCs) that have four independent sampling circuit

– Digital Gain: 1 V/V to 2 V/V in

channels

for

multi-output

charge-coupled

device

1/256-V/V Steps

(CCD)

and

complementary

metal

oxide

•

Offset Correction DAC:

±250 mV, 8-Bit

semiconductor (CMOS) line sensors. Pixel data from

•

Standard LVDS/CMOS Selectable Output:

the sensor are sampled by the sample/hold (SH) or

– LVDS:

correlated double sampler (CDS) circuit, and are then

converted to digital data by an ADC. Data output is

– Data Channel: 2-Channel

selectable in low-voltage differential signaling (LVDS)

– Clock Channel: 1-Channel

or CMOS modes.

– 8-Bit/7-Bit Serializer Selectable

The VSP5620/21/22 include a programmable gain to

– CMOS: 4 Bits × 4

support the pixel level inflection caused by luminance

•

Timing Generator

and a built-in light-emitting diode (LED) driver to

– Fast Transfer Clock: One Signal

adjust

the

brightness.

The

integrated

– Slow Transfer Clock: One Signal

digital-to-analog-converter (DAC) can be used to

adjust the offset level for the analog input signal.

•

LED Driver: Three Channels

Furthermore, the timing generator (TG) is integrated

– Current: 60-mA/Channel Max,

in these devices for the control of sensor operation.

16-Steps/Channel

•

The VSP5620/21/22 use 1.65 V to 1.95 V for the core

voltage and 3.0 V to 3.6 V for I/Os. The core voltage

•

Input Clamp/Input Reference Level

is supplied by a built-in low-dropout regulator (LDO).

Internal/External Selectable

•

Reference DAC: 0.5 V, 1.1 V, 1.5 V, 2 V

•

SPI

™: Three-Wire Serial

•

GPIO: Four-Port

1

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.

2

SPI is a trademark of Motorola.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2011, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.