Datasheet

ADN4667 Data Sheet
Rev. B | Page 4 of 16
AC 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
Min Typ Max Unit Conditions/Comments
3, 4
Differential Propagation Delay, High to Low, t
PHLD
0.5 0.9 1.7 ns See Figure 3 and Figure 4
Differential Propagation Delay, Low to High, t
PLHD
0.5 1.2 1.7 ns See Figure 3 and Figure 4
Differential Pulse Skew |t
PHLD
− t
PLHD
|, t
SKD1
5
0 0.3 0.4 ns See Figure 3 and Figure 4
Channel-to-Channel Skew, t
SKD2
6
0 0.4 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
r
0.5 1.5 ns See Figure 3 and Figure 4
Fall Time, t
f
0.5 1.5 ns See Figure 3 and Figure 4
Disable Time High to Inactive, t
PHZ
2 5 ns See Figure 5 and Figure 6
Disable Time Low to Inactive, t
PLZ
2 5 ns See Figure 5 and Figure 6
Enable Time Inactive to High, t
PZH
3
7
ns
See Figure 5 and Figure 6
Enable Time Inactive to Low, t
PZL
3 7 ns See Figure 5 and Figure 6
Maximum Operating Frequency, f
MAX
9
200 250 MHz See Figure 5 and Figure 6
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 recommended operating
temperatures 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
Figure 2. Test Circuit for Driver V
OD
and V
OS
Figure 3. Test Circuit for Driver Propagation Delay and Transition Time
07032-002
R
L
/2
R
L
/2
D
IN
D
OUT+
D
OUT–
V
CC
V
OS
V
OD
DRIVER IS ENABLED
V
V
07032-003
C
L
C
L
D
IN
D
OUT+
D
OUT–
DRIVER IS
ENABLED
NOTES
1. C
L
INCLUDES LOAD AND TEST JIG CAPACITANCE.
SIGNAL
GENERATOR
V
CC
50Ω