PI6C410 Datasheet, PDF (1/16 Pages) Pericom Semiconductor Corporation – Clock Generator for Intel PCI-Express Desktop Chipset

PI6C410
Clock Generator for Intel PCI-Express Desktop Chipset
Product Features
• 14.318 MHz Crystal Input
• Selectable of 100, 133, 166, 200, 266, 333, and 400MHz CPU
Output Frequencies
• SMBus: Power Management Control
• Spread Spectrum support (-0.5% down spread)
• Packaging (Pb-free & Green available):
-56-Pin SSOP (V)
-56-Pin TSSOP (A)
Output Features
• Two Pairs of Differential CPU Clocks
• One selectable of CPU/SRC Clock
• Six Pairs of SRC Clocks
• Nine PCI Clocks
• One 48 MHz USB clock
• One REF clock
• One 96 MHz Differential clock
Product Description
PI6C410 is a high-speed, low-noise clock generator designed to
work with Intel Desktop PCI-Express Chipset.
Spread Spectrum PLL based clock generator reduce EMI emis-
sion and support 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
Logic Block Diagram
XTAL_IN
XTAL_OUT
SDA
SCL
XTAL
OSC
PLL 1
SMBus
Logic
FS_A
C
O
FS_B / TEST_MODE
N
T
FS_C / TEST_SEL
R
O
VTT_PWRGD#
L
/ PWRDWN
PCIF_0 / ITP_EN
PLL 2
/2
Div
Div
Div
Pin Description
DOT_96
DOT 96#
USB_48
REF
PCI [0:5]
PCIF[0:2]
SRC [1:6]
SRC [1:6]#
CPU2_ITP / SRC7
CPU2_ITP# / SRC7#
CPU[0:1]
CPU[0:1]#
VDD_PCI
1
VSS_PCI
2
PCI_3
3
PCI_4
4
PCI_5
5
VSS_PCI
6
VDD_PCI
7
PCIF_0 / ITP_EN
8
PCIF_1
9
PCIF_2
10
VDD_48
11
USB_48
12
VSS_48
13
DOT_96
14
DOT_96#
15
FS_B / TEST_MODE
16
VTT_PWRGD# / PWRDWN
17
FS_A
18
SRC_1
19
SRC_1#
20
VDD_SRC
21
SRC_2
22
SRC_2#
23
SRC_3
24
SRC_3#
25
SRC_4
26
SRC_4#
27
VDD_SRC
28
56 PCI_2
55 PCI_1
54 PCI_0
53 FS_C / TEST_SEL
52 REF
51 VSS_REF
50 XTAL_IN
49 XTAL_OUT
48 VDD_REF
47 SDA
46 SCL
45 VSS_CPU
44 CPU_0
43 CPU_0#
42 VDD_CPU
41 CPU_1
40 CPU_1#
39 IREF
38 VSS_A
37 VDD_A
36 CPU2_ITP / SRC7
35 CPU2_ITP# / SRC7#
34 VDD_SRC
33 SRC_6
32 SRC_6#
31 SRC_5
30 SRC_5#
29 VSS_SRC
1
PS8734A
09/02/04