SP5730 Datasheet | Mitel Networks

1.3GHz Low Phase Noise Frequency Synthesiser Preliminary Information DS4877 issue 1.9 July 1999 Features q plete 1.3GHz single chip system for q q q q q q q q Digital Terrestrial Television applications Selectable reference division ratio, patible with (DTT) requirements Optimised for low phase noise, with parison frequencies up to 4MHz No RF prescaler Selectable reference/parison frequency output Four selectable I2C bus address I2C fast mode pliant and patible with 3.3 and 5V logic levels Four switching ports ESD protection, (Normal ESD Handling procedures should be observed) Ordering Information SP5730A/KG/MP1S Sticks SP5730A/KG/MP1T Tape and Reel SP5730A/KG/QP1S Sticks SP5730A/KG/QP1T Tape amd Reel Description The SP5730 is a single chip frequency synthesiser designed for tuning systems up to 1.3GHz and is optimised for digital terrestrial applications. The RF preamplifier interfaces direct with the RF programmable divider, which is of MN+A construction so giving a step size equal to the loop parison frequency and no prescaler phase noise degradation over the RF operating range. The parison frequency is obtained either from an on-chip crystal controlled oscillator, or from an external source. The oscillator frequency, Fref, or phase parator frequency, Fp, can be switched to the REF/P output providing a reference frequency for a second frequency synthesiser. The synthesiser is controlled via an I2C bus and is fast mode pliant. It can be hard wired to respond to one of four addresses to enable two or more synthesisers to be used on a mon bus. The device contains four switching ports P0-P3. Applications q Digital Satellite ,Cable and Terrestrial tuning systems q munications systems Preliminary Information RF/P enable/select 12 BIT COUNT RF INPUT 8/9 3 BIT COUNT Lock fpd/2 15 BIT LATCH 2 BIT 5 BIT 2 BIT 2 BIT PUMP c/p mode disable CHARGE PUMP Osc CRYSTAL CRYSTAL CAP REF DIVIDER DRIVE ADDRESS SDA...