The SP5611 is a single chip frequency synthesiser designed for TV tuning systems. Control data is entered in the standard I2C BUS format. The device contains 4 addressable bidirectional open collector ports, one of which is a 3-bit ADC. The information on these ports can be read via the I2C BUS. the device has 4 programmable addresses, programmed by applying a specific input voltage to the P3 address select input. This enables two or more synthesisers to be used in a system.

FEATURES

■ Complete 1·3GHz Single Chip System

■ High Sensitivity RF Inputs

■ Programmable via I2C BUS

■ Low Power Consumption (5V, 20mA)

■ Low Radiation

■ Phase Lock Detector

■ Varactor Drive Amp Disable

■ 4 Bi-directional Controllable Outputs

■ 5-Level ADC

■ Variable I2C BUS Address for Multi-tuner Applications

■ ESD Protection: 4kV, Mil-Std-883C, Method 3015 (1)

■ Switchable 4512/1024 Reference Divider

■ Pin and Function Compatible with SP5511S (2)

APPLICATIONS

■ Satellite TV

■ Cable Tuning Systems

■ VCRs