Features: · Low Voltage Operation, 2.7 to 3.3V· On-chip Reference Oscillator· Channel Select Synthesiser· Direct VCO input at up to 330MHz· 6400 Baud Digital 4FSK Demodulator· Serial Control Bus· Very Low Power Consumption· Small QSOP24 PackageApplication· Pagers - including small form factor desi...
ZIF600: Features: · Low Voltage Operation, 2.7 to 3.3V· On-chip Reference Oscillator· Channel Select Synthesiser· Direct VCO input at up to 330MHz· 6400 Baud Digital 4FSK Demodulator· Serial Control Bus· Ve...
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The ZIF600 synthesiser is for channel selection in 4FSK pagers. A reference frequency is generated by an on-chip crystal oscillator with an AFC external trimming varacator controlled by a DAC.
The ZIF600 digital demodulator uses DSP techniques to optimise the data extraction in the presence of noise and also generates an AFC output to adjust the crystal frequency.
Separate power controls allow the system current consumption to be minimised. All functions of ZIF600 are controlled by a serial bus with a simple programming format and with four control pins which are used to control the power up and power down functions of the blocks to allow sequenced wake up and optimised power consumption.