AN8538SH Datasheet, PDF (1/5 Pages) Panasonic Semiconductor – Single PLL IC for cellular phone

ICs for Mobile Communication
AN8538SH
Single PLL IC for cellular phone
s Overview
The AN8538SH is a single PLL IC with a fixed
frequency dividing ratio for IF local oscillation of
a cellular phone. You can generate a local signal of
260.76 MHz by using a reference signal of 19.68
MHz or 19.8 MHz.
s Features
• Two reference frequencies of 19.68 MHz and 19.8
MHz are available. (Select by SELECT pin.)
• Power saving operation (V_CC = 2.7 V, 0.9 mA typ.)
• Power saving function (10 µA max.)
• Two systems of charge pump output (one of them
can be switched to on/off with SW pin.)
• Lock detection function
• SSONF-10D small package
s Applications
• IF local oscillation for cellular phone terminal
(CDMA for North America)
1
5
0.5±0.2
10
6
4.3±0.30
6.3±0.30
SSOP010-P-0225
Unit: mm
s Block Diagram
Lock detection
14-bit R counter
15-bit N counter
Phase comparator
Selector
1/16, 1/17 prescaler
1