SP5611

SP5611 1·3GHz Bidirectional I2C Bus Controlled Synthesiser Advance Information Supersedes February 1997 version, DS3758-4.1 DS3758 - 5.0 June 1998 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. CHARGE PUMP CRYSTAL Q1 CRYSTAL Q2 SDA SCL 1 2 3 4 5 6 7 8 16 15 14 13 DRIVE OUTPUT VEE RF INPUT RF INPUT VCC NC P3 ADD SELECT PORT I/O PORT P4 SP5611 12 11 10 9 † I/O PORT P7 FEATURES s Complete 1·3GHz Single Chip System * I/O PORT P6 † I/O PORT P5 † MP16 † = Logic level I/O port * = 3-bit ADC input s s s s s s s s s s s s 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) (1) Normal ESD handling precautions should be observed. (2) The SP5511S does not have a switchable reference division ratio. Fig. 1 Pin connections ...