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E98X34-TE

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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.

Absolute Maximum Ratings (Ta=25 °C)

• Supply voltage

V

–0.3 to +10.0

V

• Storage temperature

Tstg

–55 to +150

°C

• Allowable power dissipation

580

mW

(when mounted on a printed circuit board)

Operating Conditions

• Supply voltage

V

4.75 to 9.45

V

• Operating temperature Topr

–25 to +75

°C

Description

The CXA3250N is a monolithic TV tuner IC which

integrates local oscillator and mixer circuits for VHF

band, local oscillator and mixer circuits for UHF

band, an IF amplifier and a tuning PLL onto a single

chip, enabling further miniaturization of the tuner.

Features

• Low power consumption (5 V, 69 mA typ.)

• Superior cross modulation

• Balanced UHF oscillator (4 pins) with excellent

oscillation stability

• Automatic identification of 18, 19 or 27-bit control

(during 3-wire bus mode)

• On-chip high voltage drive transistor for charge

pump

• Reference frequency selectable from 31.25, 50 or

62.5 kHz (when using a 4 MHz crystal)

• Low-phase noise synthesizer

• On-chip 4-output band switch (supports output

voltages from 5 to 9 V)

Applications

• TV tuners

• VCR tuners

• CATV tuners

Structure

Bipolar silicon monolithic IC

All Band TV Tuner IC with On-chip PLL

30 pin SSOP (Plastic)

CXA3250N

This IC has the pins whose electrostatic discharge strength is weak as the operating frequency is high and the high-frequency

process is used for this IC.

Take care of handling the IC.