ics932s421 Integrated Device Technology, ics932s421 Datasheet - Page 4

• Manufacturer Part Number: ics932s421
• Description: Pcie Gen 2 & Fbd Compliant Ck410b Ck410b+ Clock For Intel-based Servers
• Manufacturer: Integrated Device Technology

ICS932S421B is a main clock synthesizer for CK410B-generation Intel server platforms. ICS932S421B is driven with a
14.318MHz crystal. It generates CPU outputs up to 400MHz and PCI-Express clocks at 100. The 48 MHz USB clock is an exact
48.000 MHz clock. The ICS932S421B generates all other clocks with less the +/- 300 ppm error.
General Description
Block Diagram
Power Groups
1340B—06/13/07
15,25,28
47,44,38
VDD
1,8
53
35
12
Pin Number
Integrated
Circuit
Systems, Inc.
VTT_PWRGD#/PD
GND
TEST_SEL
2,7
50
20
34
14
41
FS(C:A)
SDATA
SCLK
X2
X1
Master clock, CPU Analog
SRCCLK outputs
CPUCLK clocks
PCICLK outputs
48MHz, PLL_48
XTAL
OSC.
Description
CONTROL
Xtal, Ref
LOGIC
FIXED PLL
CPU PLL
SRC/PCI
PLL
4
DIVIDERS
DIVIDERS
DIVIDER
IREF
PCICLK(3:0), PCICLK_F(2:0)
CPUCLK(3:0)
SRCCLK(4:0)
ICS932S421B
REF(1:0)
48MHz