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932S421BFLFT

更新时间： 2024-01-30 09:12:09

品牌	Logo	应用领域
艾迪悌 - IDT		PC 服务器时钟
页数	文件大小	规格书
23页	222K
描述
PCIe Gen2 and QPI Clock for Intel-Based Servers

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932S421BFLFT 数据手册

DATASHEET

PCIe Gen2 and QPI Clock for Intel-Based Servers

ICS932S421B

Key Specifications:

Recommended Application:

•

PCIe Gen 2 compliant SRC outputs

PCIe Gen 2 & QPI compliant CK410B+ clock for Intel-based

servers

QPI & FBD 2 compliant CPU clocks

CPU cycle-cycle jitter: < 50ps

SRC cycle-cycle jitter: < 125ps

PCI cycle-cycle jitter: < 500ps

CPU output skew: < 50ps

Output Features:

•

4 - 0.7V current-mode differential CPU pairs

5 - 0.7V current-mode differential SRC pair

4 - PCI (33MHz)

3 - PCICLK_F, (33MHz) free-running

1 - 48MHz

SRC output skew: < 250ps

100ppm frequency accuracy on all outputs

2 - REF, 14.318MHz

Functionality

CPU

MHz

SRC

MHz

PCI

MHz

REF

MHz

USB

MHz

FS_C¹FS_B¹FS_A²

Features/Benefits:

266.67

133.33

200.00

166.67

333.33

100.00

400.00

•

Supports spread spectrum modulation, 0 to -0.5%

down spread

100.00 33.33 14.32

48.00

•

Uses external 14.318MHz crystal and external load

capacitors for low ppm synthesis error

•

CPU clocks independent of SRC/PCI clocks

D2/D3 SMBus address

Reserved

1. FS_B and FS_C are three-level inputs. Please see V_{IL_FS}and V_{IH_FS}specifications in

the Input/Supply/Common Output Parameters Table for correct values.

Also refer to the Test Clarification Table.

2. FS_A is a low-threshold input. Please see the V_{IL_FS}and V_{IH_FS}

specifications in the Input/Supply/Common Output Parameters Table for correct values.

Pin Configuration

VDDPCI 1

GNDPCI 2

56 FS_C/TEST_SEL

55 REF0

PCICLK0 3

54 REF1

PCICLK1 4

PCICLK2 5

53 VDDREF

52 X1

PCICLK3 6

51 X2

GNDPCI 7

VDDPCI 8

PCICLK_F0 9

PCICLK_F1 10

PCICLK_F2 11

VDD48 12

50 GNDREF

49 FS_B/TEST_MODE

48 FS_A

47 VDDCPU

46 CPUCLKT0

45 CPUCLKC0

44 VDDCPU

43 CPUCLKT1

42 CPUCLKC1

41 GNDCPU

40 CPUCLKT2

39 CPUCLKC2

38 VDDCPU

37 CPUCLKT3

36 CPUCLKC3

35 VDDA

48MHz 13

GND48 14

VDDSRC 15

SRCCLKT0 16

SRCCLKC0 17

SRCCLKC1 18

SRCCLKT1 19

GNDSRC 20

SRCCLKT2 21

SRCCLKC2 22

SRCCLKC3 23

SRCCLKT3 24

VDDSRC 25

SRCCLKT4 26

SRCCLKC4 27

VDDSRC 28

34 GNDA

33 IREF

32 NC

31 Vtt_PwrGd#/PD

30 SDATA

29 SCLK

56-pin SSOP & TSSOP

IDT^TMPCIe Gen2 and QPI Clock for Intel-Based Servers

1340G—01/26/10

12 3 4 5 6 7...23

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