Datasheet

ADN4665
Rev. 0 | Page 4 of 12
TIMING CHARACTERISTICS
V
CC
= 3.0 V to 3.6 V, R
L
= 100 Ω, C
L
1
= 15 pF to GND, all specifications T
MIN
to T
MAX
, unless otherwise noted. All typical values are given
for V
CC
= 3.3 V, T
A
= 25°C.
Table 2.
Parameter
2
Symbol Min Typ Max Unit Conditions/Comments
3, 4
AC CHARACTERISTICS
Differential Propagation Delay, High to Low t
PHLD
0.8 1.18 2.0 ns See Figure 3 and Figure 4
Differential Propagation Delay, Low to High t
PLHD
0.8 1.25 2.0 ns See Figure 3 and Figure 4
Differential Pulse Skew |t
PHLD
− t
PLHD
| t
SKD1
5
0 0.07 0.4 ns See Figure 3 and Figure 4
Channel-to-Channel Skew t
SKD2
6
0 0.1 0.5 ns See Figure 3 and Figure 4
Differential Part-to-Part Skew t
SKD3
7
0 1.0 ns See Figure 3 and Figure 4
Differential Part-to-Part Skew t
SKD4
8
0 1.2 ns See Figure 3 and Figure 4
Rise Time t
TLH
0.38 1.5 ns See Figure 3 and Figure 4
Fall Time t
THL
0.4 1.5 ns See Figure 3 and Figure 4
Disable Time High to Inactive t
PHZ
5 ns See Figure 5 and Figure 6
Disable Time Low to Inactive t
PLZ
5 ns See Figure 5 and Figure 6
Enable Time Inactive to High t
PZH
7 ns See Figure 5 and Figure 6
Enable Time Inactive to Low t
PZL
7 ns See Figure 5 and Figure 6
Maximum Operating Frequency f
MAX
9
200 250 MHz See Figure 5 and Figure 6
R
L
/2
R
L
/2
D
INx
D
OUTx+
D
OUTx–
V
CC
V
OS
V
OD
NOTES
1. DRIVER IS ENABLED.
1
C
L
includes probe and jig capacitance.
2
AC parameters are guaranteed by design and characterization.
3
Generator waveform for all tests, unless otherwise specified: f = 50 MHz, Z
O
= 50 Ω, t
r
≤ 1 ns, and t
f
≤ 1 ns.
4
All input voltages are for one channel, unless otherwise specified. Other inputs are set to GND.
5
t
SKD1
= |t
PHLD
− t
PLHD
| is the magnitude difference in differential propagation delay time between the positive-going edge and the negative-going edge of the
same channel.
6
t
SKD2
is the differential channel-to-channel skew of any event on the same device.
7
t
SKD3
, differential part-to-part skew, is defined as the difference between the minimum and maximum specified differential propagation delays. This specification
applies to devices at the same V
CC
and within 5°C of each other within the operating temperature range.
8
t
SKD4
, part-to-part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices over the recommended operating
temperature and voltage ranges, and across process distribution. t
SKD4
is defined as |maximum − minimum| differential propagation delay.
9
f
MAX
generator input conditions: t
r
= t
f
< 1 ns (0% to 100%), 50% duty cycle, 0 V to 3 V. Output criteria: duty cycle = 45% to 55%, V
OD
> 250 mV, all channels switching.
Test Circuits and Timing Diagrams
V
V
08085-002
Figure 2. Test Circuit for Driver V
OD
and V
OS
C
L
C
L
D
INx
D
OUTx+
D
OUTx–
DRIVER IS
ENABLED
NOTES
1. C
L
INCLUDES PROBE AND JIG CAPACITANCE.
SIGNAL
GENERATOR
V
CC
50Ω
0
8085-003
Figure 3. Test Circuit for Driver Propagation Delay and Transition Time