CXA3038N - Sony Corporation

CXA3038N IQ Detection IC for Digital Satellite Broadcast Tuner

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 highaccura.

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. Applications Digital satellite broadcast tuner Structure Bipolar silicon monolithic IC 24 pin SSOP (Plastic) Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage VCC
  –0.3 to 5.5
• Storage temperature Tstg
  –55 to +150 Operating Conditions
• Supply voltage
• Operating temperature.