932S421BFLF IDT [Integrated Device Technology], 932S421BFLF Datasheet - Page 4

• Manufacturer Part Number: 932S421BFLF
• Description: PCIe Gen2 and QPI Clock for Intel-Based Servers
• Manufacturer: IDT [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 +/- 100 ppm error.
General Description
Block Diagram
Power Groups
IDT
15,25,28
47,44,38
ICS932S421B
PCIe Gen2 and QPI Clock for Intel-Based Servers
TM
VDD
1,8
53
35
12
Pin Number
PCIe Gen2 and QPI Clock for Intel-Based Servers
GND
VTT_PWRGD#/PD
2,7
50
20
34
14
41
TEST_SEL
FS(C:A)
SDATA
SCLK
X2
X1
Master clock, CPU Analog
SRCCLK outputs
CPUCLK clocks
PCICLK outputs
48MHz, PLL_48
Description
Xtal, Ref
XTAL
OSC.
CONTROL
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)
REF(1:0)
48MHz
1340G—01/26/10