9DB1904BKLF IDT [Integrated Device Technology], 9DB1904BKLF Datasheet - Page 9

• Manufacturer Part Number: 9DB1904BKLF
• Description: 19 Output Differential Buffer for PCIe Gen2 and QPI
• Manufacturer: IDT [Integrated Device Technology]

IDT
TA = T
1
2
3
4
5
6
Electrical Characteristics - Phase Jitter Parameters
1
2
accuracy requirements. The 9DB1904 itself does not contribute to ppm error.
Clock Periods - Differential Outputs with Spread Spectrum Disabled
Clock Periods - Differential Outputs with Spread Spectrum Enabled
SSC OFF
Guaranteed by design and characterization, not 100% tested in production.
Applies to all outputs.
See http://www.pcisig.com for complete specs
Sample size of at least 100K cycles. This figures extrapolates to 108ps pk-pk @ 1M cycles for a BER of 1-12.
Subject to final radification by PCI SIG.
Calculated from Intel-supplied Clock Jitter Tool v 1.6.3
For RMS figures, additive jitter is calculated by solving the following equation: (Additive jitter)^2 = (total jittter)^2 - (input jitter)^2
SSC ON
All Long Term Accuracy specifications are guaranteed with the assumption that the input clock complies with CK410B+/CK420BQ
9DB1904B
19 Output Differential Buffer for PCIe Gen2 and QPI
Phase Jitter, PLL Mode
®
Additive Phase Jitter,
DIF
DIF
19 Output Differential Buffer for PCIe Gen2 and QPI
COM;
PARAMETER
Bypass mode
Supply Voltage VDD/VDDA = 3.3 V +/-5%, See Test Loads for Loading Conditions
Center
Center
100.00
133.33
133.00
Freq.
Freq.
99.75
MHz
MHz
-c2c jitter
-c2c jitter
1 Clock
AbsPer
9.94900
7.44925
1 Clock
AbsPer
9.94906
7.44930
t
t
Min
Min
jphQPI_SMI
jphQPI_SMI
SYMBOL
t
t
t
t
jphPCIeG1
jphPCIeG2
jphPCIeG1
jphPCIeG2
Short-Term
Short-Term
Average
Average
9.99906
7.49930
-SSC
-SSC
(100MHz or 133MHz, 4.8Gb/s, 6.4Gb/s 12UI)
(100MHz or 133MHz, 4.8Gb/s, 6.4Gb/s 12UI)
Min
Min
1us
1us
1.5MHz < f < Nyquist (50MHz)
1.5MHz < f < Nyquist (50MHz)
Long-Term
Long-Term
PCIe Gen 2 High Band
PCIe Gen 2 High Band
10.02406
PCIe Gen 2 Lo Band
PCIe Gen 2 Lo Band
10kHz < f < 1.5MHz
10kHz < f < 1.5MHz
Average
Average
9.99900
7.49925
7.51805
- ppm
- ppm
0.1s
0.1s
Min
Min
CONDITIONS
PCIe Gen 1
PCIe Gen 1
QPI & SMI
QPI & SMI
Measurement Window
Measurement Window
Nominal
10.00000
Nominal
10.02506
7.50000
7.51880
9
Period
Period
0 ppm
0 ppm
0.1s
0.1s
Long-Term
Long-Term
10.00100
10.02607
Average
Average
7.50075
7.51955
+ ppm
+ ppm
0.1s
Max
0.1s
Max
MIN
Short-Term
Short-Term
10.05107
Average
Average
7.53830
TYP
0.30
0.01
0.12
+SSC
+SSC
1.2
2.5
0.8
35
Max
Max
1us
1us
3
MAX
0.3
1.3
3.1
0.5
0.3
86
10
+c2c jitter
+c2c jitter
3
10.05100
10.10107
1 Clock
AbsPer
7.55075
1 Clock
AbsPer
7.58830
Max
Max
ps (p-p)
ps (p-p)
UNITS
(rms)
(rms)
(rms)
(rms)
(rms)
(rms)
1607C—04/19/11
ps
ps
ps
ps
ps
ps
Units
Units
ns
ns
ns
ns
Notes
1,2,3
1,2,3
1,2,6
1,2,6
1,5,6
1,2
1,2
1,5
Notes
Notes
1,2
1,2
1,2
1,2