FS8107E Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – Low Power Phase-Locked Loop IC

FS8107E Low Power Phase-Locked Loop IC
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for the use of any circuits shown in this datasheet.
Description
The FS8107E is a serial data input, phase-locked loop IC with programmable input and
reference frequency dividers. When combined with a VCO, the FS8107E becomes the
core of a very low power frequency synthesizer well-suited for mobile communication
applications such as paging systems. Compared to the FS8100, the FS8107E is housed
in a smaller package and also implements a separate pin for stand-by control.
Features
‹ High maximum input operating frequency — 100 MHz at V_DD1 = 1.0 V
‹ Up to 22 MHz internal crystal oscillator reference frequency at V_DD1 = 1.0 V
‹ Extremely low current consumption (I_DD,total typically 0.4 mA at f_FIN = 90 MHz)
‹ 16-bit programmable input frequency divider (including a ÷ 32/33 prescaler) with
divide ratio range from 992 to 65535
‹ 13-bit programmable reference frequency divider (including a ÷ 8 prescaler) with
divide ratio range from 40 to 65528
‹ Optional lock detector output
‹ Charge pump output for passive low-pass filter
‹ Quick-lock signal output for faster locking
‹ Separate pin for stand-by control
‹ TSSOP 16L package (0.65mm pitch)
Applications
‹ Pager
‹ Wireless communication system
Page 1
April 2003