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CXD2302

8-bit 50MSPS Video A/D Converter with Clamp Function

Sony Semiconductor 

CXD2302Q

8-bit 50MSPS Video A/D Converter with Clamp Function

Description

The CXD2302Q is an 8-bit CMOS A/D converter

for video with synchronizing clamp function. The

adoption of 2 step-parallel method achieves low

power consumption and a maximum conversion rate

of 50MSPS.

32 pin QFP (Plastic)

Features

• Resolution: 8 bit ± 1/2LSB (DL)

• Maximum sampling frequency: 50MSPS

• Low power consumption: 125mW (at 50MSPS typ.)

(reference current excluded)

• Synchronizing clamp function

• Clamp ON/OFF function

• Reference voltage self-bias circuit

• Input CMOS/TTL compatible

• 3-state TTL compatible output

• Single 5V power supply or dual 5V/3.3V power supply

• Low input capacitance: 15pF

• Reference impedance: 370Ω (typ.)

Applications

Wide range of applications that require high-speed

A/D conversion such as TV and VCR.

Structure

Silicon gate CMOS IC

Absolute Maximum Ratings (Ta = 25°C)

• Supply voltage VDD

7

V

• Reference voltage VRT,VRBVDD + 0.5 to Vss – 0.5V

• Input voltage

VIN VDD + 0.5 to Vss – 0.5V

(Analog)

• Input voltage

VI

VDD + 0.5 to Vss – 0.5V

(Digital)

• Output voltage VO VDD + 0.5 to Vss – 0.5V

(Digital)

• Storage temperature

Tstg

–55 to +150 °C

Recommended Operating Conditions

• Supply voltage AVDD, AVss 4.75 to 5.25 V

DVDD, DVss 3.0 to 5.5

V

| DVss – AVss | 0 to 100 mV

• Reference input voltage

VRB

0 and above V

VRT

2.7 and below V

• Analog input

VIN

1.7Vp-p above

• Clock pulse width

TPW1, TPW0 9ns (min) to 1.1µs (max)

• Operating ambient temperature

Topr

–40 to +85 °C

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by

any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the

operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

–1–

E94102E78-PS

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