ZL10313 Integrated Circuit Chip satellite receivers Satellite Demodulator

ZL10313

Satellite Demodulator

Features

• Conforms to EBU specification for DVB-S and DirecTV specification for DSS

• On-chip digital filtering supports 1 - 45 MSps symbol rates

• On-chip 60 or 90 MHz dual-ADC

• High speed scanning mode for blind symbol rate/code rate acquisition

• Automatic spectral inversion resolution

• High level software interface for minimum development time

• Up to ±22.5 MHz LNB frequency tracking

• DiSEqC™ v2.2: receive/transmit for full control of LNB, dish and other components

• Compact 64-pin LQFP package (7 x 7 mm)

• A full DVB-S front-end reference design is available, ref. ZLE10538

Applications

• DVB 1 - 45 MSps compliant satellite receivers

• DSS 20 MSps compliant satellite receivers

• SMATV (Single Master Antenna TV) transmodulators

• Satellite PC applications

Description

The ZL10313 is a QPSK/BPSK 1 - 45 MSps demodulator and channel decoder for digital satellite television transmissions to the European Broadcast Union ETS 300 421 specification. It receives analogue I and Q signals from the tuner, digitises and digitally demodulates this signal, implements the complete DVB/DSS FEC (Forward Error Correction) and descrambling function. The output is in the form of MPEG2 or DSS transport stream data packets. The ZL10313 also provides automatic gain control to the RF front-end device.

The ZL10313 has a serial 2-wire bus interface to the control microprocessor. Minimal software is required to control the ZL10313 because of the built in automatic search and decode control functions.

Absolute Maximum Ratings

Note 1: Stresses exceeding these listed under 'Absolute Ratings' may induce failure. Exposure to absolute maximum ratings for extended periods may reduce reliability. Functionality at or above these conditions is not implied.

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