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932SQ428AKLF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
932SQ428
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
IDT®
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS 16
932SQ428 REV E 042312
Line
Byte 1,
Bit 0
Spread
Enable
Byte6
Bit3
FS3
Byte6
Bit2
FS2
Byte6
Bit1
FS 1
Byte6
Bit0
FS0
SRC
(MHz)
PC I
(MHz)
Spre ad
%
0
0 0 0 0 0 89.97 29.99
1
0 0 0 0 1 91.28 30.43
2
0 0 0 1 0 92.58 30.86
3
0 0 0 1 1 93.75 31.25
4
0 0 1 0 0 95.05 31.68
5
0 0 1 0 1 96.22 32.07
6
0 0 1 1 0 97.53 32.51
7
0 0 1 1 1 98.83 32.94
8
0
1 0 0 0 100.00 33.33
9
0 1 0 0 1101.3033.77
10
0 1 0 1 0102.4734.16
11 0
1 0 1 1 103.78 34.59
12
0 1 1 0 0105.0835.03
13
0 1 1 0 1106.2535.42
14
0 1 1 1 0107.5535.85
15
0 1 1 1 1110.0336.68
16
1 0 0 0 0 89.97 29.99
17
1 0 0 0 1 91.28 30.43
18
1 0 0 1 0 92.58 30.86
19
1 0 0 1 1 93.75 31.25
20
1 0 1 0 0 95.05 31.68
21
1 0 1 0 1 96.22 32.07
22
1 0 1 1 0 97.53 32.51
23
1 0 1 1 1 98.83 32.94
24
1 1 0 0 0100.0033.33
25
1 1 0 0 1101.3033.77
26
1 1 0 1 0102.4734.16
27
1 1 0 1 1103.7834.59
28
1 1 1 0 0105.0835.03
29
1 1 1 0 1106.2535.42
30
1 1 1 1 0107.5535.85
31
1 1 1 1 1110.0336.68
SRC/PCI Frequency Selection Table
0%
-0.5%
932SQ428
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
IDT®
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS 17
932SQ428 REV E 042312
Line
Byte5
Bit4
FS4
Byte5
Bit3
FS3
Byte5
Bit2
FS2
Byte5
Bit1
FS 1
Byte5
Bit0
FS0
NS_xxx
(MHz)
0 0 0 0 0 0 58.33
1 0 0 0 0 1 61.11
2 0 0 0 1 0 63.89
3 0 0 0 1 1 66.67
4 0 0 1 0 0 69.44
5 0 0 1 0 1 72.22
6 0 0 1 1 0 75.00
7 0 0 1 1 1 77.78
8 0 1 0 0 0 80.56
9 0 1 0 0 1 83.33
10 0 1 0 1 0 86.11
11 0 1 0 1 1 88.89
12 0 1 1 0 0 91.67
13 0 1 1 0 1 94.44
14 0 1 1 1 0 97.22
15
01111
100.00
16 1 0 0 0 0 102.78
17 1 0 0 0 1 105.56
18 1 0 0 1 0 108.33
19 1 0 0 1 1 111.11
20 1 0 1 0 0 113.89
21 1 0 1 0 1 116.67
22 1 0 1 1 0 119.44
23 1 0 1 1 1 122.22
24 1 1 0 0 0 125.00
25 1 1 0 0 1 127.78
26 1 1 0 1 0 130.56
27 1 1 0 1 1 133.33
28 1 1 1 0 0 136.11
29 1 1 1 0 1 138.89
30 1 1 1 1 0 141.67
31 1 1 1 1 1 144.44
NOTE: Operation at other than the default entry is not
guaranteed. These values are for margining purposes only.
NS_SAS Margining Table
932SQ428
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
IDT®
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS 18
932SQ428 REV E 042312
Common R ecommendations for Differential Routing D imension or Value Unit Figure
L1 length, route as non-coupled 50ohm trace 0.5 max inch 1
L2 length, route as non-coupled 50ohm trace 0.2 max inch 1
L3 length, route as non-coupled 50ohm trace 0.2 max inch 1
Rs 33 ohm 1
Rt 49.9 ohm 1
Down Device Differential Routing
L4 length, route as coupled microstrip 100ohm differential trace 2 min to 16 max inch 1
L4 length, route as coupled stripline 100ohm differential trace 1.8 min to 14.4 max inch 1
Differential Routing to PCI Express Connector
L4 length, route as coupled microstrip 100ohm differential trace 0.25 to 14 max inch 2
L4 length, route as coupled stripline 100ohm differential trace 0.225 min to 12.6 max inch 2
DIF Reference Clock
HCSL Output Buffer
L1
L1'
Rs
L2
L2'
Rs
L4'
L4
L3L3'
Rt Rt
PCI Express
Down Device
REF_CLK Input
Figure 1: Down Device Routing
HCSL Output Buffer
L1
L1'
Rs
L2
L2'
Rs
L4'
L4
L3L3'
Rt Rt
PCI Express
Add-in Board
REF_CLK Input
Figure 2: PCI Express Connector Routing
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

932SQ428AKLF

Mfr. #:
Buy 932SQ428AKLF
Manufacturer:
IDT
Description:
Clock Synthesizer / Jitter Cleaner CK420BQ
Lifecycle:
New from this manufacturer.
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