9db233 Integrated Device Technology, 9db233 Datasheet - Page 6

• Manufacturer Part Number: 9db233
• Description: Two Output Differential Buffer For Pcie Gen3
• Manufacturer: Integrated Device Technology

IDT
TA = T
1
2
3
4
TA = T
1
2
3
4
Electrical Characteristics - Output Duty Cycle, Jitter, Skew and PLL Characterisitics
Electrical Characteristics - PCIe Phase Jitter Parameters
Guaranteed by design and characterization, not 100% tested in production.
I
Applies to all outputs.
See http://www.pcisig.com for complete specs
Measured from differential waveform
Duty cycle distortion is the difference in duty cycle between the output and the input clock when the device is operated in bypass mode.
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.
9DB233
Two Output Differential Buffer for PCIe Gen3
REF
Skew, Output to Output
Phase Jitter, PLL Mode
®
Skew, Input to Output
Additive Phase Jitter,
Duty Cycle Distortion
Jitter, Cycle to cycle
PLL Jitter Peaking
Two Output Differential Buffer for PCIe Gen3
= V
PLL Bandwidth
COM
PARAMETER
COM
PARAMETER
Bypass Mode
Duty Cycle
DD
or T
or T
/(3xR
IND;
IND;
R
). For R
Supply Voltage VDD = 3.3 V +/-5%
Supply Voltage VDD = 3.3 V +/-5%
R
= 475 Ω (1%), I
SYMBOL
SYMBOL
t
t
t
t
t
t
jphPCIeG1
jphPCIeG2
jphPCIeG3
jphPCIeG1
jphPCIeG2
jphPCIeG3
t
t
t
t
jcyc-cyc
JPEAK
pdBYP
t
pdPLL
BW
t
t
DCD
sk3
DC
Measured differentially, Bypass Mode @100MHz
REF
= 2.32mA. I
(PLL BW of 2-4MHz, CDR = 10MHz)
(PLL BW of 2-4MHz, CDR = 10MHz)
Measured differentially, PLL Mode
Additive Jitter in Bypass Mode
1.5MHz < f < Nyquist (50MHz)
1.5MHz < f < Nyquist (50MHz)
Hi BW PLL Mode V
-3dB point in High BW Mode
-3dB point in Low BW Mode
Bypass Mode, V
PCIe Gen 2 High Band
PCIe Gen 2 High Band
Peak Pass band Gain
PCIe Gen 2 Lo Band
PCIe Gen 2 Lo Band
10kHz < f < 1.5MHz
10kHz < f < 1.5MHz
OH
CONDITIONS
CONDITIONS
PCIe Gen 1
PCIe Gen 3
PCIe Gen 1
PCIe Gen 3
V
PLL mode
= 6 x I
T
= 50%
REF
T
6
T
and V
= 50%
= 50%
OH
= 0.7V @ Z
O
=50 Ω .
2500
MIN
-250
MIN
0.4
45
-2
2
3660
TYP
TYP
2.3
0.5
1.1
2.3
0.5
0.2
0.8
0.1
48
15
40
10
32
1
1
0
2
MAX
MAX
4500
250
3.1
0.3
0.2
55
50
50
50
86
4
1
2
2
3
5
1
1
Datasheet
ps (p-p)
ps (p-p)
UNITS NOTES
UNITS
1667C—04/20/11
(rms)
(rms)
(rms)
(rms)
(rms)
(rms)
MHz
MHz
dB
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
%
%
Notes
1,2,3
1,2,4
1,2,3
1,2,4
1,4
1,3
1,3
1,2
1,2
1,2
1,2
1
1
1
1
1
1
1