AD9517-3
Data Sheet
Rev. E | Page 8 of 80
TIMING CHARACTERISTICS
Table 5.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LVPECL
Termination = 50 to VS 2 V; level = 810 mV
Output Rise Time, tRP
70
180
ps
20% to 80%, measured differentially
Output Fall Time, tFP
70
180
ps
80% to 20%, measured differentially
PROPAGATION DELAY, tPECL, CLK-TO-LVPECL
OUTPUT
High Frequency Clock Distribution Configuration
835
995
1180
ps
Clock Distribution Configuration
773
933
1090
ps
Variation with Temperature
0.8
ps/°C
OUTPUT SKEW, LVPECL OUTPU
TS1LVPECL Outputs That Share the Same Divider
5
15
ps
LVPECL Outputs on Different Dividers
13
40
ps
All LVPECL Outputs Across Multiple Parts
220
ps
LVDS
Termination = 100 differential; 3.5 mA
Output Rise Time, tRL
170
350
ps
20% to 80%, measured differentiall
y2Output Fall Time, tFL
160
350
ps
20% to 80%, measured differentiall
y2PROPAGATION DELAY, tLVDS, CLK-TO-LVDS OUTPUT
Delay off on all outputs
For All Divide Values
1.4
1.8
2.1
ns
Variation with Temperature
1.25
ps/°C
OUTPUT SKEW, LVDS OUTPU
TS1Delay off on all outputs
LVDS Outputs That Share the Same Divider
6
62
ps
LVDS Outputs on Different Dividers
25
150
ps
All LVDS Outputs Across Multiple Parts
430
ps
CMOS
Termination = open
Output Rise Time, tRC
495
1000
ps
20% to 80%; CLOAD = 10 pF
Output Fall Time, tFC
475
985
ps
80% to 20%; CLOAD = 10 pF
PROPAGATION DELAY, tCMOS, CLK-TO-CMOS OUTPUT
Fine delay off
For All Divide Values
1.6
2.1
2.6
ns
Variation with Temperature
2.6
ps/°C
OUTPUT SKEW, CMOS OUTPU
TS1Fine delay off
CMOS Outputs That Share the Same Divider
4
66
ps
All CMOS Outputs on Different Dividers
28
180
ps
All CMOS Outputs Across Multiple Parts
675
ps
LVDS and CMOS
Register 0x0A1 (0x0A4, 0x0A7, 0x0AA), Bits[5:0] = 101111b
Zero Scale
50
315
680
ps
Register 0x0A2 (0x0A5, 0x0A8, 0x0AB), Bits[5:0] = 000000b
Full Scale
540
880
1180
ps
Register 0x0A2 (0x0A5, 0x0A8, 0x0AB), Bits[5:0] = 101111b
Register 0x0A1 (0x0A4, 0x0A7, 0x0AA), Bits[5:0] = 000000b
Zero Scale
200
570
950
ps
Register 0x0A2 (0x0A5, 0x0A8, 0x0AB), Bits[5:0] = 000000b
Quarter Scale
1.72
2.31
2.89
ns
Register 0x0A2 (0x0A5, 0x0A8, 0x0AB), Bits[5:0] = 001100b
Full Scale
5.7
8.0
10.1
ns
Register 0x0A2 (0x0A5, 0x0A8, 0x0AB), Bits[5:0] = 101111b
Delay Variation with Temperature
Zero Scale
0.23
ps/°C
Full Scale
0.02
ps/°C
Zero Scale
0.3
ps/°C
Full Scale
0.24
ps/°C
1
This is the difference between any two similar delay paths while operating at the same voltage and temperature.
2
Corresponding CMOS drivers set to A for noninverting and B for inverting.
3
The maximum delay that can be used is a little less than one-half the period of the clock. A longer delay disables the output.
4
Incremental delay; does not include propagation delay.
5
All delays between zero scale and full scale can be estimated by linear interpolation.