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參數(shù)資料
| 型號： | BRF2A |
| 英文描述： | Quad Differential Receivers |
| 中文描述： | 四路差分接收器 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 236K |
| 代理商： | BRF2A |
Agere Systems Inc.
5
Data Sheet
April 2001
BRF1A, BRF2A, BRS2B, BRR1A, and BRT1A
Quad Differential Receivers
Timing Characteristics
(continued)
12-2251.b(F)
Figure 4. Receiver Propagation Delay Timing
12-253.b(F)
* E2 = 1 while E1 changes state.
E1 = 0 while E2 changes state.
Figure 5. Receiver Enable and Disable Timing
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.
12-2249(F)
* Includes probe and jig capacitances.
Note: All 458E, IN4148, or equivalent diodes.
Figure 6. Receiver Propagation Delay Test Circuit
INPUT
OUTPUT
INPUT
80%
20%
3.7 V
3.2 V
2.7 V
V
OH
1.5 V
V
OL
80%
20%
t
PHL
t
tHL
t
PLH
t
tLH
V = 0.5 V
V = 0.5 V
V = 0.5 V
V = 0.5 V
E1*
OUTPUT
t
PHZ
t
PZH
3 V
1.5 V
0 V
E2
3 V
1.5 V
0 V
V
OH
V
OL
t
PZL
t
PLZ
TO OUTPUT OF
DEVICE UNDER
TEST
C
L
15 pF*
5 k
2 k
5 V
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