ICS9DB401C Datasheet, PDF (6/17 Pages) Integrated Device Technology – Four Output Differential Buffer for PCI Express

ICS9DB401C
Four Output Differential Buffer for PCI Express
Electrical Characteristics - Clock Input Parameters
T_A = 0 - 70°C; Supply Voltage V_DD = 3.3 V +/-5%
PARAMETER
SYMBOL
CONDITIONS
Differential Input High Voltage
Differential Input Low Voltage
Input Slew Rate - DIF_IN
V_IHDIF
V_ILDIF
dv/dt
Differential inputs
(single-ended measurement)
Differential inputs
(single-ended measurement)
Measured differentially
MIN
600
V_SS - 300
0.4
Input Leakage Current
I_IN
V_IN = V_{DD ,} V_IN = GND
-5
Input Duty Cycle
d_tin
Measurement from differential
45
wavefrom
Input SRC Jitter - Cycle to
Cycle
SRCJ_C2CIn
Differential Measurement
1 _{Guaranteed by design and characterization, not 100% tested in production.}
2_{Slew rate measured through Vswing centered around differential zero}
MAX
1150
300
8
5
55
125
UNITS NOTES
mV
1
mV
1
V/ns
2
uA
1
%
1
ps
1
Electrical Characteristics - DIF 0.7V Current Mode Differential Pair
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L =2pF, R_S=33.2Ω, R_P=49.9Ω, Ι_REF = 475Ω
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Current Source Output
Impedance
Zo¹
V_O = V_x
3000
Ω
Voltage High
Voltage Low
VHigh
VLow
Statistical measurement on single ₆₆₀
ended signal using oscilloscope
math function.
-150
850
mV
150
Max Voltage
Min Voltage
Crossing Voltage (abs)
Crossing Voltage (var)
Long Accuracy
Rise Time
Fall Time
Rise Time Variation
Fall Time Variation
Duty Cycle
Skew
Vovs
Vuds
Vcross(abs)
d-Vcross
ppm
t_r
t_f
d-t_r
d-t_f
d_t3
t_sk3
Measurement on single ended
signal using absolute value.
Variation of crossing over all
edges
see Tperiod min-max values
V_OL = 0.175V, V_OH = 0.525V
V_OH = 0.525V V_OL = 0.175V
Measurement from differential
wavefrom
V_T = 50%
PLL mode,
-300
250
175
175
45
1150
mV
550
mV
140
mV
0
ppm
700
ps
700
ps
125
ps
125
ps
55
%
50
ps
Jitter, Cycle to cycle
t_jcyc-cyc
Measurement from differential
wavefrom
50
ps
BYPASS mode as additive jitter
50
ps
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that the input clock}
complies with CK409/CK410 accuracy requirements
3_{IREF = VDD/(3xRR). For RR = 475Ω (1%), IREF = 2.32mA. IOH = 6 x IREF and VOH = 0.7V @ ZO=50Ω.}
NOTES
1
1,3
1,3
1
1
1
1
1,2
1
1
1
1
1
1
1
1
IDT^TM/ICS^TM Four Output Differential Buffer for PCI Express
6
ICS9DB401C REV E 03/18/08