CXA3108AQ Datasheet, PDF (1/19 Pages) Sony Corporation – L-band Down Converter IC with On-Chip PLL

CXA3108AQ
L-band Down Converter IC with On-Chip PLL
Description
The CXA3108AQ is a monolithic IC that down-
converts the L-band (1 to 2 GHz) 1st IF to 2nd IF for
satellite broadcast receivers. It integrates a local
oscillator circuit, double-balanced mixer, IF AGC
amplifier and tuning PLL onto a single chip.
This IC supports both analog and digital satellite
broadcasts, and achieves reduction in the number of
tuner components and smaller size.
Features
• On-chip tuning PLL
• Supports 2.65 GHz oscillator frequency
• Noise figure: 12.5 dB typ. (for IF full gain)
• IF AGC gain variation: 46 dB typ.
• Wide band IF AGC amplifier (60 to 500 MHz)
• Two IF outputs
• PLL supports I²C protocol
• On-chip high voltage drive transistor for charge
pump
40 pin QFP (Plastic)
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC –0.3 to +5.5 V
• Storage temperature Tstg –55 to +150 °C
• Allowable power dissipation
PD
730 mW
(when mounted on a substrate)
Operating Conditions
• Supply voltage
• Operating temperature
VCC
Topr
4.75 to 5.30 V
–25 to +75 °C
Applications
• Analog satellite broadcast tuners (BS/CS)
• Digital satellite broadcast tuners (DSS/DVB, etc.)
Structure
Bipolar silicon monolithic IC
Notes on Handling
This IC has a weak electrostatic discharge strength. Take care when 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.
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E99904-TE