BTM1A Agere Systems, BTM1A Datasheet - Page 9

• Manufacturer Part Number: BTM1A
• Description: Dual Differential Transceivers--BTK1A And BTM1A
• Manufacturer: Agere Systems

October 2001
Timing Characteristics
* E2 = 1 while E1 changes state.
† E1 = 0 while E2 changes state.
Test Conditions
Parametric values specified under the Electrical
Characteristics and Timing Characteristics sections for
the data transmission driver devices are measured with
the following output load circuits.
Agere Systems Inc.
Figure 7. Driver Propagation Delay Test Circuit
OUTPUT
E2
E1*
†
V
DO
V
DO
OH
OL
200
t
PHZ
BTM1A
BTK1A
100
100
(continued)
Figure 6. Receiver Enable and Disable Timing
V = 0.5 V
200
DO
DO
t
PZH
12-2271.a(F)
12-2271.b(F)
V = 0.5 V
* Includes probe and jig capacitances.
Note: All 458E, IN4148, or equivalent diodes.
Figure 8. Receiver Propagation Delay Test Circuit
DEVICE UNDER
TO OUTPUT OF
t
PLZ
TEST
V = 0.5 V
15 pF*
C
L
BTK1A and BTM1A
t
PZL
5 k
V = 0.5 V
+5 V
2 k
3 V
1.3 V
0 V
3 V
1.3 V
0 V
1.3 V
12-2538.a(F)
12-2249(F)
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