SM5170AV Datasheet, PDF (1/10 Pages) Nippon Precision Circuits Inc – PLL Synthesizer IC

NIPPON PRECISION CIRCUITS INC.
SM5170AV
PLL Synthesizer IC
OVERVIEW
The SM5170AV is a PLL synthesizer IC developed
for application in pagers. It incorporates indepen-
dently-controlled reference frequency and FIN input
frequency dividers, and operates from a low-voltage
supply to realize low power dissipation. It features a
charge pump that operates at 3 V, making possible a
wide range of VCO designs.
FEATURES
s Supply voltages
• V_DD1 = 0.95 to 1.2 V
(prescaler, counters)
• V_DD2 = 2.0 to 3.3 V (charge pump)
s FIN input frequency
• f_FIN = 300 MHz (V_DD1 = 0.95 V)
• f_FIN = 330 MHz (V_DD1 = 1.0 V)
s Reference frequency
• f_XIN = 25 MHz (V_DD1 = 0.95 V)
s 20 to 262140 reference frequency divider ratio
range (with 1/4 prescaler built-in)
s 1056 to 131071 FIN input frequency divider ratio
range
s −10 to 60 °C operating temperature range
s 16-pin VSOP
PINOUT
(Top view)
XIN 1
XOUT
VDD2
DB
DO
VSS
FIN
VDD1 8
16 TEST
NC
OPR
LE
DATA
CLK
LD
9 NC
ORDERING INFORMATION
Device
SM5170AV
Package
16-pin VSOP
NIPPON PRECISION CIRCUITS—1