9EX21501
Datasheet
15 Output PCIe G2/QPI Differential Buffer with 2:1 Input Mux
Electrical Characteristics - DIF 0.7V Current Mode Differential Outputs
TA = TCOM or TIND; Supply Voltage VDD/VDDA = 3.3 V +/-5%, See Test Loads for Loading Conditions
PARAMETER
Slew rate
SYMBOL
Trf
CONDITIONS
MIN
1
TYP
2.2
MAX UNITS NOTES
V/ns
Scope averaging on
Slew rate matching,
Scope averaging on
4
1, 2, 3
1, 2, 4
Δ
%
Slew rate matching
Voltage High
Trf
11
772
10
20
Statistical measurement on single-
ended signal using oscilloscope math
function. (Scope averaging on)
VHigh
VLow
660
850
1
1
mV
mV
Voltage Low
-150
150
Max Voltage
Min Voltage
Vswing
Crossing Voltage (abs)
Crossing Voltage (var)
Vmax
Vmin
Vswing
Measurement on single ended signal
using absolute value. (Scope averaging
Scope averaging off
870
-47
1390
360
14
1150
1
1
-300
300
250
mV
mV
mV
1, 2
1, 5
1, 6
Vcross_abs
Scope averaging off
Scope averaging off
550
140
Δ
-Vcross
1
Ω
Guaranteed by design and characterization, not 100% tested in production. IREF = VDD/(3xRR). For RR = 475 (1%), IREF = 2.32mA.
Ω
Ω
IOH = 6 x IREF and VOH = 0.7V @ ZO=50 (100 differential impedance).
2 Measured from differential waveform
3 Slew rate is measured through the Vswing voltage range centered around differential 0V. This results in a +/-150mV window around
differential 0V.
4 Matching applies to rising edge rate of Clock / falling edge rate of Clock#. It is measured in a +/-75mV window centered on the
average cross point where Clock rising meets Clock# falling. The median cross point is used to calculate the voltage thresholds the
oscilloscope uses for the edge rate calculations.
5 Vcross is defined as voltage where Clock = Clock# measured on a component test board and only applies to the differential rising
edge (i.e. Clock rising and Clock# falling).
6 The total variation of all Vcross measurements in any system. Note that this is a subset of V_cross_min/max (V_cross absolute)
allowed. The intent is to limit Vcross induced modulation by setting V_cross_delta to be smaller than V_cross absolute.
Electrical Characteristics - Current Consumption
TA = TCOM or TIND; Supply Voltage VDD/VDDA = 3.3 V +/-5%, See Test Loads for Loading Conditions
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS NOTES
IDD3.3VDDOP
TA - TCOM, All outputs active <200MHz
306
330
390
36
mA
mA
mA
mA
mA
1
1
1
1
1
VDD Operating Current,
Commerical Temp
TA - TCOM, All outputs active
>=200MHz
IDD3.3VDDOP
360
29
IDD3.3VDDAOP TA - TCOM, All outputs active <200MHz
VDDA Operating Current,
Commercial Temp
TA - TCOM, All outputs active
IDD3.3VDDAOP
29
36
>=200MHz
VDD Powerdown Current,
Commerical Temp
IDD3.3VDDPDZ
TA = TCOM, All differential pairs Hi-Z
12
15
VDDA Powerdown Current,
Commercial Temp
IDD3.3VDDAPDZ
IDD3.3VDDOP
TA = TCOM, All differential pairs Hi-Z
TA - TIND, All outputs active <200MHz
15
20
mA
1
325
390
350
420
mA
mA
1
1
VDD Operating Current,
Industrial Temp
IDD3.3VDDAOP TA - TIND, All outputs active >=200MHz
IDD3.3VDDOP TA - TIND, All outputs active >=200MHz
IDD3.3VDDAOP TA - TIND, All outputs active >=200MHz
33
33
15
40
40
20
mA
mA
mA
1
1
1
VDDA Operating Current,
Industrial Temp
VDD Powerdown Current,
Industrial Temp
IDD3.3VDDPDZ
TA = TIND, All differential pairs Hi-Z
TA = TIND, All differential pairs Hi-Z
VDDA Powerdown Current,
Industrial Temp
IDD3.3VDDAPDZ
16
20
mA
1
1Guaranteed by design and characterization, not 100% tested in production.
IDT® 15 Output PCIe G2/QPI Differential Buffer with 2:1 Input Mux
1578—01/18/11
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