SI53102-A1 Datasheet, PDF (5/15 Pages) Silicon Laboratories – PCI-EXPRESS GEN 1, GEN 2, GEN 3, AND GEN 4 1:2 FAN-OUT CLOCK BUFFER

Si53102-A1/A2/A3
Table 3. AC Electrical Specifications
Parameter
Symbol
Condition
Min Typ
DIFFIN at 0.7 V
Input frequency
Fin
10 100
DIFFIN and DIFFIN
Rising/Falling Slew Rate
T_R / T_F
Single ended measurement:
0.6
—
V_OL = 0.175 to V_OH = 0.525 V
(Averaged)
Differential Input High Voltage
V_IH
150 —
Differential Input Low Voltage
V_IL
—
—
Crossing Point Voltage at 0.7 V
V_OX
Single-ended measurement
250 —
Swing
Vcross Variation Over All edges
V_OX
Single-ended measurement
—
—
Differential Ringback Voltage
V_RB
–100 —
Time before Ringback Allowed
T_STABLE
500 —
Absolute Maximum Input Voltage
V_MAX
—
Absolute Minimum Input Voltage
V_MIN
–0.3 —
DIFFIN and DIFFIN Duty Cycle
T_DC
Measured at crossing point V_OX 45
—
Rise/Fall Matching
T_RFM
Determined as a fraction of
2 x (T_R – T_F)/(T_R + T_F)
—
—
DIFF Clocks
Duty Cycle
Output Skew
Frequency Accuracy
Slew Rate
T_DC
Measured at crossing point V_OX 45
—
T_SKEW
Measured at 0 V differential
—
—
F_ACC
All output clocks
—
—
t_r/f2
Measured differentially from
0.6
—
±150 mV
PCIe Gen 1 Pk-Pk Additive Jitter
PCIe Gen 2 Additive Phase Jitter
Pk-
Pk_GEN1
RMS_GEN2
PCIe Gen 1
Si53102-A1
10 kHz < F < 1.5 MHz,
Si53102-A2
—
—
—
—
PCIe Gen 2 Additive Phase Jitter _RMSGEN2
1.5 MHz < F < Nyquist,
Si53102-A2
—
—
PCIe Gen 3 Additive Phase Jitter _RMSGEN3
Includes PLL BW 2–4 MHz,
CDR = 10 MHz,
Si53102-A3
—
—
PCIe Gen 4 Additive Phase Jitter
Crossing Point Voltage at 0.7 V
Swing
RMS_GEN4
V_OX
PCIe Gen 4
—
—
300
—
Enable/Disable and Setup
Clock Stabilization from Powerup T_STABLE
Power up to first output
—
—
Notes:
1. Visit www.pcisig.com for complete PCIe specifications.
2. Gen 4 specifications based on the PCI-Express Base Specification 4.0 rev. 0.5.
3. Download the Silicon Labs PCIe Clock Jitter Tool at www.silabs.com/pcie-learningcenter.
Max Unit
175 MHz
4
V/ns
—
mV
–150 mV
550 mV
140 mV
100 mV
—
ps
1.15
V
—
V
55
%
20
%
55
%
100
ps
100 _ppm
4.0 V/ns
10
ps
0.50 ps
0.50 ps
0.20 ps
0.20 ps
550 mV
3.0
ms
Rev 1.2
5