pi6c410b Pericom Semiconductor Corporation, pi6c410b Datasheet

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pi6c410b

Manufacturer Part Number
pi6c410b
Description
400mhz Clock Generator For Server/workstation
Manufacturer
Pericom Semiconductor Corporation
Datasheet
Features
• 14.318 MHz Crystal Input
• Selectable of 100, 133, 166, 200, 266, 333, and 400 MHz
• SMBus: Power Management Control
• Spread Spectrum support (-0.5% down spread)
• Packaging (Pb-free & Green):
Output Features
• Four Pairs of Differential CPU Clocks
• Five Pairs of SRC Clocks
• Seven PCI Clocks
• One 48 MHz USB clock
• Two REF clocks
Block Diagram
FS_B/TEST_MODE
FS_C/TEST_SEL
CPU Output Frequencies
—56-Pin SSOP (V)
—56-Pin TSSOP (A)
VTT_PWRGD#
XT AL_OUT
07-0093
XT AL_IN
/PWRDWN
SDA
SCL
FS_A
IREF
SM Bus
Logic
XT AL
OSC
PLL 1
DIV
DIV
DIV
PLL 2
USB_48
REF [0:1]
PCI [0:3]
PCIF [0:2]
SRC [0:4]
SRC [0:4]#
CPU [0:3]
CPU [0:3]#
1
Description
PI6C410B is a high-speed, low-noise clock generator designed to
work with Intel Server PCI-Express Chipset. The Spread Spectrum
PLL based clock generator reduces EMI emission and supports a
wide range of frequencies.
Jitter Performance
• < 85ps Cycle-to-Cycle CPU clock jitter
• < 350ps Cycle-to-Cycle 48MHz clock jitter
• < 500ps Cycle-to-Cycle PCI clock jitter
• < 125ps Cycle-to-Cycle SRC clock jitter
• < 1000ps Cycle-to-Cycle REF clock jitter
Skew Performance
• < 100ps Output to output CPU clock skew
• < 500ps Output to output PCI clock skew
• < 250ps Output to output SRC clock skew
Pin Confi guration
VDD_SRC
VDD_SRC
VDD_SRC
VSS_SRC
VDD_PCI
VDD_PCI
VSS_PCI
VSS_PCI
VDD_48
SRC_0#
SRC_1#
SRC_2#
SRC_3#
SRC_4#
USB_48
VSS_48
PCIF_0
PCIF_1
PCIF_2
SRC_0
SRC_1
SRC_2
SRC_3
SRC_4
PCI_0
PCI_1
PCI_2
PCI_3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PCI-Express Server
Clock Generator for Intel
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
FS_C / TEST_SEL
REF_0
REF_1
VDD_REF
XTAL_IN
XTAL_OUT
VSS_REF
FS_B/TEST_MODE
FS_A
VDD_CPU
CPU_0
CPU_0#
VDD_CPU
CPU_1
CPU_1#
VSS_CPU
CPU_2
CPU_2#
VDD_CPU
CPU_3
CPU_3#
VDD_A
VSS_A
IREF
NC
VTT_PWRGD# / PWRDWN
SDA
SCL
PI6C410B
PS8811A
Chipset
04/19/07

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pi6c410b Summary of contents

Page 1

... VTT_PWRGD# /PWRDWN IREF 07-0093 Description PI6C410B is a high-speed, low-noise clock generator designed to work with Intel Server PCI-Express Chipset. The Spread Spectrum PLL based clock generator reduces EMI emission and supports a wide range of frequencies. Jitter Performance • < 85ps Cycle-to-Cycle CPU clock jitter • ...

Page 2

... Power Supply for Outputs 15, 25, 28 3.3V Power Supply for Outputs 38, 44, 47 3.3V Power Supply for Outputs 53 3.3V Power Supply for Outputs 2, 7 Ground for Outputs 14 Ground for Outputs 20 Ground for Outputs 41 Ground for Outputs 50 Ground for Outputs 35 3.3V Power Supply for PLL 34 Ground for PLL 2 PI6C410B Descriptions PS8811A 04/19/07 ...

Page 3

... MHz 48 MHz 14.318 MHz 48 MHz 14.318 MHz 48 MHz 14.318 MHz 48 MHz 14.318 MHz 48 MHz 14.318 MHz 48 MHz REF USB_48 REF REF/N Hi-Z Hi-Z PCIF / PCI REF 33 MHz 14.318 MHz Low Low PS8811A PI6C410B Note Note 2 2 USB_48 48 MHz Low 04/19/07 ...

Page 4

... Serial Data Interface (SMBus) PI6C410B is a slave only SMBus device that supports indexed block read and indexed block write protocol using a single 7-bit ad- dress and read/write bit as shown below. Address Assignment Data Protocol 1 bit 7 bits 1 1 Start Slave Register ...

Page 5

... Enabled PCIF_1 Enabled PCIF_2 Enabled PCI_0 Enabled PCI_1 Enabled PCI_2 Enabled PCI_3 5 PI6C410B Pin Source Pin 10, 11, 16, 17, 18, 19, 21, 22, 23, 24, 26, NA 27, 36, 37, 39, 40, 42, 43, 45 ...

Page 6

... Free running SRC_2, SRC_2 Free running SRC_3, SRC_3 Free running SRC_4, SRC_4 Free running PCIF_0 Free running PCIF_1 Free running PCIF_2 6 PI6C410B Pin Source Pin ...

Page 7

... Driven in RW CPU_2, CPU2# CPU_Stop 0 = Driven in RW CPU_3, CPU3# CPU_Stop Driven in SRC[0:4] & RW power down SRC[0:4 Driven in SRC[0:4] & RW PCI_STOP SRC[0:4 PI6C410B Pin Source Pin Pin Source Pin ...

Page 8

... Power-Up Type Output(s) Affected Condition PI6C410B Pin Source Pin 36, 37, 39, 40, NA 42, 43, 45, 46 36, 37, 39, 40, NA 42, 43, 45, 46 36, 37, 39, 40, NA 42, 43, 45 16, 17, 18, 19, 21, NA 22, 23, 24, 26 Pin ...

Page 9

... Power Down (PWRDWN De-assertion) PWRDWN CPU, 133MHz CPU#, 133MHz SRC, 100MHz SRC#, 100MHz USB, 48MHz PCI, 33MHz REF, 14.318MHz 07-0093 Clock Generator for Intel PCI-Express Server Chipset Figure 1. Power down sequence Tstable < 1.8ms Tdrive_PWRDWN < 300us, >200mV Figure 2. Power down de-assert sequence 9 PI6C410B PS8811A 04/19/07 ...

Page 10

... Driven @ Iref x 2 Tristate Tristate Tperiod Min Max 2.4993 2.5008 2.9991 3.0009 3.7489 3.7511 4.9985 5.0015 5.9982 6.0018 7.4978 7.5023 9.9970 10.0030 9.9970 10.0030 29.9910 30.0090 Motional Tolerance Stability Cap Max. Max. Max. 0.016pF 50ppm 50ppm PS8811A PI6C410B Unit ns Aging Max. 5ppm 04/19/07 ...

Page 11

... Nominal test load for given REF I = 2.32mA confi guration REF Reference /(3xRr) REF 475Ω 1%, REF I = 2.32mA REF 11 Slope ~ 1/R O 0.85V Maximum N/A unspecifi ed 850mV Min. -12% I +12% I NOMINAL Output Current 0. REF PS8811A PI6C410B Max. NOMINAL @ Z 04/19/07 ...

Page 12

... Min. Max. -0.5 4.6 -0.5 4.6 4.6 -0.5 -65 150 2000 Min. Max. 3.135 3.465 3.135 3.465 2 0 – 0 – 0.3 0.35 SS 2.4 0.4 12.2 15.6 = 1.0V -29 = 3.135V -23 = 1.0V -33 = 3.135V -33 = 1.95V 1.95V 500 PI6C410B Units V °C V Units V μ °C PS8811A 04/19/07 ...

Page 13

... Voltage Low including undershoot Absolute crossing point voltages Total Variation of Vcross over all edges Duty Cycle Duty Cycle (measured at 1.5V) All clock stabilization from power-up Differential output enable after PwrDwn de-assertion PwrDwn rise and fall time 13 PI6C410B Min Max. Units Notes 175 700 1.0 4 ...

Page 14

... Maximum 10” trace length for CPU outputs at 200 MHz. Maximum 16” trace length for SRC outputs at 100 MHz. Packaging Mechanical: 56-Pin, 240-mil wide TSSOP (A) 07-0093 Clock Generator for Intel PCI-Express Server Chipset Rs 33Ω 5% TLA Rs 33Ω 5% TLB Rp Rp 49.9Ω 49.9Ω PI6C410B Clock Clock# 2pF 2pF 5% 5% PS8811A 04/19/07 ...

Page 15

... Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. Number of transistors = TBD Pb-free and Green Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 07-0093 Clock Generator for Intel PCI-Express Server Chipset Package Code A Pb-free & Green, 56-pin TSSOP V Pb-free & Green, 56-pin SSOP 15 PI6C410B Package Description PS8811A 04/19/07 ...

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