BTF1A Datasheet, PDF (9/16 Pages) Agere Systems – Dual Differential Transceiver BTF1A With Idle Bus Indicator

Data Sheet
March 2001
Dual Differential Transceiver BTF1A
With Idle Bus Indicator
Timing Characteristics (continued)
E1*
E2^†
tPHZ
VOH
OUTPUT
VOL
* E2 = 1 while E1 changes state.
† E1 = 0 while E2 changes state.
tPZH
tPLZ
∆V = 0.5 V
∆V = 0.5 V
∆V = 0.5 V
Figure 6. Receiver Enable and Disable Timing
3V
1.5 V
0V
3V
1.5 V
0V
tPZL
∆V = 0.5 V
12-2538.b(F)
Test Conditions
Parametric values specified under the Electrical Char-
acteristics and Timing Characteristics sections for the
data transmission driver devices are measured with the
following output load circuits.
TO OUTPUT OF
DEVICE UNDER
TEST
CL
15 pF*
+5 V
2 kΩ
5 kΩ
DO
200 Ω
100 Ω
DO
200 Ω
12-2271.a(F)
Figure 7. Driver Propagation Delay Test Circuit
* Includes probe and jig capacitances.
Note: All 458E, IN4148, or equivalent diodes.
12-2249(F)
Figure 8. Receiver Propagation Delay Test Circuit
Agere Systems Inc.
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