Description
The SL1935 is a complete single chip bus controlled Zero IF tuner and operates from 950 to 2150MHz. It includes an on-board low phase noise PLL frequency synthesiser and low noise LNA/AGC. The SL1935 is intended primarily for application in digital satellite Network Interface Modules and performs the complete tuner function. I2C

FEATUREs
• Single chip synthesised tuner solution for quadrature
   down conversion, L-band to Zero IF.
• DVB compliant, operating dynamic range -70 to
   -20dBm.
• Compatible with DSS and DVB variable symbol rate
   applications.
• Selectable baseband path, programmable through
   I2C bus.
• Excellent quadrature balance up to 30MHz
   baseband
• Excellent immunity to spurious second harmonic
   (RF and LO) mixing effects.
• Low oscillator phase noise and reradiation.
• High output referred linearity for low distortion and
   multi channel application.
• Integral fast mode compliant I2C bus controlled PLL
   frequency synthesiser, designed for high comparison
   frequencies and low phase noise performance.
• Buffered crystal output for clocking QPSK
   demodulator.
• ESD protection (Normal ESD handling procedures
   should be observed).

APPLICATIONs
• Satellite receiver systems.
• Data communications systems.