CXA3038N Datasheet, PDF (1/16 Pages) Sony Corporation – IQ Detection IC for Digital Satellite Broadcast Tuner

CXA3038N
IQ Detection IC for Digital Satellite Broadcast Tuner
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