ICS844S42I Datasheet, PDF (2/27 Pages) Integrated Device Technology – On-chip crystal oscillator for reference frequency generation

ICS844S42I Data Sheet
Block Diagram
REF_CLK
XTAL_IN
XTAL_OUT
REF_SEL
0
÷P
OSC
1 f_REF
f_PD
SDA
SCL
ADR[1:0]
nPLOAD
M[9:0]
NA[2:0]
NB[2:0]
P
LEV_SEL
nBYPASS
nMR
PLL
Configuration
Registers
I²C Control
1
PLL
f_{VCO 0}
÷M
DUAL OUTPUT RF FREQUENCY SYNTHESIZER
f_QA
÷NA
QA
f_QB
÷NB
QB
LOCK_DT
ICS844S42BKI REVISION A FEBRUARY 21, 2012
2
©2012 Integrated Device Technology, Inc.