GX3146 Datasheet, PDF (15/46 Pages) Semtech Corporation – Crosspoint Switch with Trace Equalization and Output De-emphasis

2.4 AC Electrical Characteristics
Table 2-4: AC Electrical Characteristics
Parameter
System
Serial Input Data Rate
Propagation Delay
Propagation Delay Difference
High-speed Inputs/Outputs
Output Switch Time using Update
Enable Strobes
Input Voltage Swing
Symbol
DR_SDO
t_P
Δt_P
ΔV_SDI
ΔV_OD
Output Voltage Swing
Output Rise/Fall Time
t_r/t_f
Duty Cycle Distortion
Additive Jitter
Input Trace Equalization
Output De-Emphasis Setting
Host Interface
Conditions
—
—
Between any two channels
—
VCC_OUT[1,2] = 1.2V±5%,
Output = 200mVppd
VCC_OUT[1,2] = 1.2V±5%,
Output = 400mVppd
VCC_OUT[1,2] = 1.2V±5%,
Output = 800mVppd
VCC_OUT[1,2] = 1.8V±5%,
Output = 200mVppd
VCC_OUT[1,2] = 1.8V±5%,
Output = 400mVppd
VCC_OUT[1,2] = 1.8V±5%,
Output = 800mVppd
VCC_OUT[1,2] = 2.5V±5%,
Output = 200mVppd
VCC_OUT[1,2] = 2.5V±5%,
Output = 400mVppd
VCC_OUT[1,2] = 2.5V±5%,
Output = 800mVppd
VCC_OUT[1,2] = 2.5V±5%,
Output = 1200mVppd
All output swings.
20% to 80%.
All data rates, all output
swings.
All inputs active,
peak-to-peak (PRBS 31)
Range
Maximum Setting
Min
—
—
—
0.9
100
150
300
600
150
300
600
150
300
600
1000
—
-50
—
0
0
9
Typ
—
—
—
—
—
225
450
900
225
450
900
225
450
900
1350
—
—
—
—
—
—
Max Units Notes
3.5
Gb/s
—
6
ns
1
5.5
ns
1
1.8
μs
2
1200 mVppd
—
300 mVppd
—
600 mVppd
—
1200 mVppd
3
300 mVppd
—
600 mVppd
—
1200 mVppd
—
300 mVppd
—
600 mVppd
—
1200 mVppd
—
1700 mVppd
—
150
ps
—
+50
ps
—
60
ps_p-p
—
12
dB
4
11.2
dB
4
—
dB
GX3146 146 x 146 3.5Gb/s Crosspoint
Final Data Sheet Rev. 2
GENDOC-056075 March 2013
www.semtech.com
15 of 46
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