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CXA3038N

IQ Detection IC for Digital Satellite Broadcast Tuner

Sony Semiconductor 

CXA3038N

IQ Detection IC for Digital Satellite Broadcast Tuner

For the availability of this product, please contact the sales office.

Description

The CXA3038N is an IC for IQ-detection of DSS,

DVB, and other digital satellite broadcast QPSK

modulation signals in the 480 MHz band. It consists

of an AGC amplifier circuit, oscillator circuit, phase

shifter circuit, and phase comparison circuit. In

addition, the chip has a PLL circuit for frequency

control and built-in control data. It realizes high-

accuracy oscillator frequencies through use of a low-

cost LC resonance circuit.

Features

• Built-in PLL for controlling oscillator frequency.

• Oscillator frequency based at 479.5 MHz is

adjustable in ±4 steps of 50 kHz using the voltage

of the control pin.

• Reference OSC allows switching to 4 MHz or 10

MHz.

• Built-in output buffer for reference OSC.

• Low-impedance IQ output.

• AGC gain variation 35 dB.

24 pin SSOP (Plastic)

Absolute Maximum Ratings (Ta=25 °C)

• Supply voltage

VCC –0.3 to 5.5 V

• Storage temperature Tstg –55 to +150 °C

Operating Conditions

• Supply voltage

• Operating temperature

VCC

Topr

4.75 to 5.30 V

–25 to +75 °C

Applications

Digital satellite broadcast tuner

Structure

Bipolar silicon monolithic 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.

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E97650A84-TE

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