ICS9EX21801A Datasheet, PDF (6/14 Pages) Integrated Device Technology – 18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux

ICS9EX21801A
18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
Datasheet
Electrical Characteristics - Clock Input Parameters
T_A = 0 - 70°C; Supply Voltage V_DD = 3.3 V +/-5%
PARAMETER
SYMBOL
CONDITIONS
Input High Voltage -
DIF_IN
Input Low Voltage -
DIF_IN
Input Common Mode
Voltage - DIF_IN
V_IHDIF
V_ILDIF
V_COM
Differential inputs
(single-ended measurement)
Differential inputs
(single-ended measurement)
Common Mode Input Voltage
Input Amplitude - DIF_IN V_SWING
Peak to Peak value
Input Slew Rate - DIF_IN dv/dt
Measured differentially
Input Leakage Current
I_IN
V_IN = V_{DD ,} V_IN = GND
Input Duty Cycle
d_tin
Measurement from differential
wavefrom
Input Jitter - Cycle to
Cycle
J_DIFIn
Differential Measurement
1 _{Guaranteed by design and characterization, not 100% tested in production.}
MIN
TYP
600
800
V_SS - 300
0
300
300
0.4
-5
45
0
MAX UNITS NOTES
1150 mV
1
300 mV
1
1000 mV
1
1450 mV
1
8
V/ns 1,2
5
uA
1
55
%
1
125 ps
1
Electrical Characteristics - DIF 0.7V Current Mode Differential Pairs
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L =2pF, R_S=33.2Ω, R_P=49.9Ω, R_REF=475Ω, 10 inch transmission lines
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
Current Source Output
Impedance
Zo¹
V_O = V_x
3000
Voltage High
VHigh
Statistical measurement on single
660
850
ended signal using oscilloscope math
Voltage Low
VLow
function.
-150
150
Max Voltage
Vovs
Measurement on single ended signal
1150
Min Voltage
Vuds
using absolute value.
-300
Crossing Voltage (abs) Vcross(abs)
250
550
Crossing Voltage (var) d-Vcross Variation of crossing over all edges
140
Long Accuracy
ppm
see Tperiod min-max values
0
Rise Time
t_r
V_OL = 0.175V, V_OH = 0.525V
175
700
Fall Time
t_f
V_OH = 0.525V V_OL = 0.175V
175
700
Rise Time Variation
d-t_r
125
Fall Time Variation
d-t_f
125
Duty Cycle
d_t3
Measurement from differential
45
wavefrom
55
Jitter, Cycle to cycle
t_jcyc-cyc
PLL mode
BYPASS mode as additive jitter
50
50
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}
CK410B+/CK509B accuracy requirements. The 9EX21801 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}
UNITS NOTES
Ω
1
1,3
mV
1,3
mV
1
1
mV
1
mV
1
ppm 1,2
ps
1
ps
1
ps
1
ps
1
%
1
ps 1,5
ps 1,4
IDT^TM 18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
6
1463B — 01/20/10