ICS831721I Datasheet, PDF (5/17 Pages) Integrated Device Technology – Differential Clock/Data Multiplexer

ICS831721I Data Sheet
DIFFERENTIAL CLOCK/DATA MULTIPLEXER
AC Electrical Characteristics
Table 5. HCSL AC Characteristics, V_DD = 3.3V ± 0.3V, T_A = -40°C to 85°C
Symbol
Parameter
Test Conditions
f_OUT
tjit
Output Frequency
Buffer Additive Phase Jitter, RMS;
refer to Additive Phase Jitter Plot
100MHz, Integration Range:
12kHz – 20MHz
t_PD
tsk(i)
Propagation Delay, NOTE 1
Input Skew; NOTE 2
Any CLKx, nCLKx to Q, nQ
tsk(pp)
Part-to-Part Skew;
NOTE 3, 4
Edge Rate Rise/Fall Edge Rate; NOTE 5, 6
V_RB
V_MAX
Ringback Voltage; NOTE 5, 7
Absolute Max Output Voltage; NOTE
8, 9
V_MIN
Absolute Min Output Voltage; NOTE
8, 10
V_CROSS
Absolute Crossing Voltage;
NOTE 8, 11, 12
∆V_CROSS
Total Variation of V_CROSS over all
edges; NOTE 8, 11, 13
odc
MUX_ISOL
Output Duty Cycle; NOTE 14
Mux Isolation; NOTE 15
f_OUT < 312.5MHz
f_OUT > 312.5MHz
ƒ = 100MHz
Minimum
2
0.6
-100
Typical
0.314
Maximum
700
0.337
2.4
55
400
4.0
100
1150
Units
MHz
ps
ns
ps
ps
V/ns
V
mV
-300
mV
250
550
mV
140
mV
46
43
80
54
%
57
%
dB
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium
has been reached under these conditions.
NOTE 1: Measured from the differential input cross point to the differential output crossing point.
NOTE 2: Defined as skew between input paths on the same device, using the same input signal levels, measured at one specific output at the
differential cross points.
NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 4: Defined as skew between outputs on different devices operating at the same supply voltage and with equal load conditions. Using
the same type of inputs on each device, the outputs are measured at the differential cross points.
NOTE 5: Measurement taken from differential waveform.
NOTE 6: Measurement from -150mV to +150mV on the differential waveform (derived from Q minus nQ). The signal must be monotonic
through the measurement region for rise and fall time. The 300mV measurement window is centered on the differential zero crossing.
NOTE 7: T_STABLE is the time the differential clock must maintain a minimum ±150mV differential voltage after rising/falling edges before it is
allowed to drop back into the V_RB ±100 differential range. See Parameter Measurement Information Section.
NOTE 8: Measurement taken from single-ended waveform.
NOTE 9: Defined as the maximum instantaneous voltage including overshoot. See Parameter Measurement Information Section.
NOTE 10: Defined as the minimum instantaneous voltage including undershoot. See Parameter Measurement Information Section.
NOTE 11: Measured at crossing point where the instantaneous voltage value of the rising edge of Qx equals the falling edge of nQx.
See Parameter Measurement Information Section
NOTE 12: Refers to the total variation from the lowest crossing point to the highest, regardless of which edge is crossing. Refers to all crossing
points for this measurement. See Parameter Measurement Information Section.
NOTE 13: Defined as the total variation of all crossing voltage of rising Q and falling nQ. This is the maximum allowed variance in the V_CROSS
for any particular system. See Parameter Measurement Information Section.
NOTE 14: Input duty cycle must be 50%.
NOTE 15: Q, nQ output measured differentially. See MUX Isolation Diagram in Parameter Measurement Information Section.
ICS831721AGI REVISION A AUGUST 19, 2011
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©2011 Integrated Device Technology, Inc.