ICS9DB803DI Datasheet, PDF (9/21 Pages) Integrated Device Technology – Eight Output Differential Buffer for PCIe Gen 2

ICS9DB803DI
Eight Output Differential Buffer for PCIe for Gen 2
Electrical Characteristics - DIF 0.7V Current Mode Differential Pair
T_A = -40 - 85°C; V_DD = 3.3 V +/-5%; C_L =2pF, R_S=33.2Ω, R_P=49.9Ω, R_REF=475Ω
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS NOTES
Current Source Output
Impedance
Zo¹
V_O = V_x
3000
Ω
1
Voltage High
Voltage Low
VHigh Statistical measurement on single ended signal 660
VLow
using oscilloscope math function.
-150
850
150
mV
1,3
1,3
Max Voltage
Min Voltage
Vovs
Measurement on single ended signal using
Vuds
absolute value.
-300
1150 _mV
1
1
Crossing Voltage (abs) Vcross(abs)
250
550 mV 1
Crossing Voltage (var)
d-Vcross
Variation of crossing over all edges
140 mV 1
Long Accuracy
ppm
see Tperiod min-max values
0 ppm 1,2
Rise Time
t_r
V_OL = 0.175V, V_OH = 0.525V
175
700 ps
1
Fall Time
t_f
V_OH = 0.525V V_OL = 0.175V
175
700 ps
1
Rise Time Variation
d-t_r
125 ps
1
Fall Time Variation
d-t_f
125 ps
1
Duty Cycle
d_t3
Measurement from differential wavefrom 45
50
55
%
1
Skew
t_sk3
V_T = 50%
60
ps
1
Jitter, Cycle to cycle
t_jcyc-cyc
PLL mode
BYPASS mode as additive jitter
40
50
ps 1,5
15
50
ps 1,5
Jitter, Phase
t_jphasebypass
t_jphasePLL
PCIe Gen 1 specs
(pk to pk value)
PCIe Gen 2 specs
(rms value)
PCIe Gen 1 specs
(pk to pk value)
PCIe Gen 2 specs
(rms value)
30
86
ps 1,6,7
2.6
3.1 ps 1,6,7
40
86
ps 1,6,7
2.8
3.1 ps 1,6,7
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy specifications are guaranteed with the assumption that the input clock complies with CK409/CK410/CK505}
accuracy requirements. The 9DB403/803 itself does not contribute to ppm error.
3_{IREF = VDD/(3xRR). For RR = 475Ω (1%), IREF = 2.32mA. IOH = 6 x IREF and VOH = 0.7V @ ZO=50Ω.}
4 _{Applies to Bypass Mode Only}
5 _{Measured from differential waveform}
6 _{See http://www.pcisig.com for complete specs}
7 _{Device driven by HP81134A Pulse Generator}
IDT^TM/ICS^TM Eight Output Differential Buffer for PCIe Gen 2
9
ICS9DB803DI REV A 06/18/08