SP5769
SP5769 is 3GHz I2C Bus Synthesiser manufactured by Mitel Networks.
Features
G plete 3- 0 GHz Single Chip System G Optimised for Low Phase Noise, with parison G G G G G G G G G G G
Ordering Information
SP5769A/KG/MP1S (Tubes) SP5769A/KG/MP1T (Tape and Reel) SP5769A/KG/QP1S (Tubes) SP5769A/KG/QP1T (Tape and Reel) size equal to the loop parison frequency and no prescaler phase noise degradation over the full RF operating range. The parison frequency is obtained either from an on-chip crystal controlled oscillator, or from an external source. The oscillator frequency, f REF, or phase parator frequency, f P, can be switched to the REF/ P output providing a reference for a second frequency synthesiser. The synthesiser is controlled via an 12C bus
Frequencies up to 4 MHz No RF Prescaler Selectable Reference Division Ratio Selectable Reference/parison Frequency Output Selectable Charge Pump Current with 10:1 Ratio Four Selectable I2C Addresses I2C Fast Mode pliant with 3- 3V and 5V Logic Levels Four Switching Ports Functional Replacement for SP5659 (except ADC) Pin patible with SP5655 Power Consumption 110m W with VCC = 5- 5V, all Ports off ESD Protection 2k V min., MIL-STD-883B Method 3015 Cat.1 (Normal ESD handling procedures should be observed)
Absolute Maximum Ratings
All voltages are referred to VEE = 0V Supply voltage, VCC 0- 3V to 17V RF differential input voltage 2- 5Vp-p All I/O port DC offsets 20- 3 to VCC 10- 3V SDA and SCL DC offset 20- 3 to 6V Storage temperature 255°C to 1125°C Junction temperature 1150°C MP16 thermal resistance Chip to ambient, θJA 80°C/W Chip to case, θJC 20°C/W
Applications
G Digital Satellite and Cable Tuning Systems G munications Systems
The SP5769 is a single chip frequency synthesiser designed for tuning systems up to 3GHz. The RF preamplifier interfaces direct with the RF programmable divider, which is of MN1A construction so giving a step
11 ENABLE/ SELECT 13 2
REF/P CRYSTAL CAP
RF INPUT
11-BIT COUNT
REFERENCE DIVIDER
416/17
4-BIT COUNT
LOCK f PD/2
CRYSTAL CHARGE PUMP DRIVE
PUMP
16 CP TEST...