FS8107E

Features:

High maximum input operating frequency -100 MHz at V_DD1= 1.0 V
Up to 22 MHz internal crystal oscillator reference frequency atV_DD1= 1.0V
Extremely low current consumption (I_DDtotal 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)




Application

Pager
Wireless communication system




Pinout






Specifications

Parameter	Symbol	Rating	Unit
Supply voltage	VDD1	VSS- 0.3 toVSS + 2.0	V
	VDD2	VSS- 0.3 toVSS +7.0	V
Input voltage range	VFIN	VSS- 0.3 toVDD +0.3	V
Operating temperature range	TOPR	-10 to 60
Storage temperature range	TSTG	-40 to 125
Soldering temperature range	TSLD	255
Soldering time range	tSLD	10	s

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.