ICS332-29
Dual Output Clock Synthesizer
Description
Features
The ICS332-29 is a low cost frequency generator that
is factory programmable. Using analog/digital
Phase-Locked-Loop (PLL) techniques, the device
accepts a 12MHz crystal or clock input to produce
output clocks of 130 MHz and 75MHz. In one selection
the 75 MHz clock has center spread spectrum of
0.5%.
• 8 pin SOIC package – Pb-free, RoHS compliant
• Zero ppm synthesis error
• Input clock or crystal frequency of 12 MHz
• Two output clocks of 130 MHz and 75 MHz
• 75 MHz has spread spectrum capability
• Duty cycle of 45/55
• Operating voltage of 3.3 V
• Advanced, low power CMOS process
• For one output clock (lowest jitter), use the ICS331.
For three output clocks, see the ICS333. For more
than three outputs, see the ICS355 or ICS388.
The device also has a power down feature that
tri-states the clock outputs and turns off the PLLs when
the PDTS pin is taken low.
Block Diagram
OTP
PLL
Clock
Synthesis
and
ROM
with PLL
Divider
Values
SEL
CLK1
CLK2
Control
Circuitry
12 M Hz Crystal or
Clock
X1/ICLK
Crystal
Oscillator
X2
Optional crystal capacitors
PDTS (both outputs and PLL)
MDS 332-29 B
1
Revision 090209
Integrated Device Technology, Inc. ● www.idt.com
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
