CXA3250N

更新时间： 2024-01-05 08:56:35

品牌	Logo	应用领域
索尼 - SONY		电视
页数	文件大小	规格书
35页	383K
描述
All Band TV Tuner IC with On-chip PLL

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CXA3250N 数据手册

CXA3250N

All Band TV Tuner IC with On-chip PLL

Description

30 pin SSOP (Plastic)

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

Absolute Maximum Ratings (Ta=25 °C)

• Balanced UHF oscillator (4 pins) with excellent

oscillation stability

• Supports both I²C and 3-wire bus modes

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

(during 3-wire bus mode)

• On-chip A/D converter (during I²C bus mode)

• On-chip high voltage drive transistor for charge

pump

• Supply voltage

VCC1, VCC2 –0.3 to +5.5

VCC3

–0.3 to +10.0

• Storage temperature

Tstg

–55 to +150 °C

• Allowable power dissipation

580 mW

(when mounted on a printed circuit board)

Operating Conditions

• Supply voltage VCC1, VCC2 4.75 to 5.30

VCC3 4.75 to 9.45

• Reference frequency selectable from 31.25, 50 or

62.5 kHz (when using a 4 MHz crystal)

• Low-phase noise synthesizer

• Operating temperature Topr

–25 to +75 °C

• 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

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.

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—

E98X34-TE

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