Switching Characteristics
Symbol
t
PHZ
t
PLZ
t
PZH
t
PZL
f
MAX
Disable Time High to Z
Disable Time Low to Z
Enable Time Z to High
Enable Time Z to Low
Parameter
(Continued)
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. (Notes 3, 4, 7, 8)
Conditions
R
L
= 2 kΩ
C
L
= 10 pF
(Figure
3
and
Figure 4)
All Channels Switching
200
Min
Typ
8
6
11
11
250
Max
12
12
17
17
Units
ns
ns
ns
ns
MHz
Maximum Operating Frequency (Note 14)
Note 1:
“Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.
Note 2:
Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground unless otherwise speci-
fied.
Note 3:
All typicals are given for: V
CC
= +3.3V, T
A
= +25˚C.
Note 4:
Generator waveform for all tests unless otherwise specified: f = 1 MHz, Z
O
= 50Ω, t
r
and t
f
(0% to 100%)
≤
3 ns for R
IN
.
Note 5:
The VCMR range is reduced for larger VID. Example: if VID = 400mV, the VCMR is 0.2V to 2.2V. The fail-safe condition with inputs shorted is valid over
a common-mode range of 0V to 2.3V. A VID up to V
CC
− 0V may be applied to the R
IN+
/ R
IN−
inputs with the Common-Mode voltage set to V
CC
/2. Propagation delay
and Differential Pulse skew decrease when VID is increased from 200mV to 400mV. Skew specifications apply for 200mV
≤
VID
≤
800mV over the common-mode
range .
Note 6:
t
SKD1
is the magnitude difference in differential propagation delay time between the positive going edge and the negative going edge of the same channel
Note 7:
t
SKD2
, Channel-to-Channel Skew, is defined as the difference between the propagation delay of one channel and that of the others on the same chip with
any event on the inputs.
Note 8:
t
SKD3
, part to part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices at the same V
CC
,
and within 5˚C of each other within the operating temperature range.
Note 9:
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 temperature and voltage ranges, and across process distribution. t
SKD4
is defined as |Max − Min| differential propagation delay.
Note 10:
ESD Rating:
HBM (1.5 kΩ, 100 pF)
≥
4.5kV
EIAJ (0Ω, 200 pF)
≥
250V
Note 11:
Output short circuit current (I
OS
) is specified as magnitude only, minus sign indicates direction only. Only one output should be shorted at a time, do not
exceed maximum junction temperature specification.
Note 12:
C
L
includes probe and jig capacitance.
Note 13:
V
CC
is always higher than R
IN+
and R
IN−
voltage. R
IN−
and R
IN+
are allowed to have a voltage range −0.2V to V
CC
− VID/2. However, to be compliant with
AC specifications, the common voltage range is 0.1V to 2.3V
Note 14:
f
MAX
generator input conditions: t
r
= t
f
<
1ns (0% to 100%), 50% duty cycle, differential (1.05V to 1.35V peak to peak). Output Criteria: 60%/40% duty cycle,
V
OL
(max 0.4V), V
OH
(min 2.7V), Load = 10 pF (stray plus probes)
Parameter Measurement Information
DS100067-3
FIGURE 1. Receiver Propagation Delay and Transition Time Test Circuit
DS100067-4
FIGURE 2. Receiver Propagation Delay and Transition Time Waveforms
3
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