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參數(shù)資料
| 型號： | BTK1A |
| 廠商： | Lineage Power |
| 英文描述： | Dual Differential Transceivers(雙差分收發(fā)器) |
| 中文描述： | 雙差分收發(fā)器（雙差分收發(fā)器） |
| 文件頁數(shù)： | 3/18頁 |
| 文件大?。?/td> | 362K |
| 代理商： | BTK1A |
Lucent Technologies Inc.
3
Data Sheet
October 1998
BTK1A, BTL1A, and BTM1A
Dual Differential Transceivers
Electrical Characteristics
For variations in electrical characteristics over the temperature range, see Figures 10 through 12.
Table 2. Power Supply Current Characteristics
T
A
=
40 °C to +125 °C, V
CC
= 5 V
±
0.5 V.
Parameter
Power Supply Current (V
CC
= 5.5 V):
All Outputs Disabled:
BTK1A
BTL1A, BTM1A
All Outputs Enabled:
BTK1A
BTL1A, BTM1A
Third State
These drivers produce pseudo-ECL levels, and the third-state mode is different than the conventional TTL devices.
When a driver is placed in the third state, the bases of the output transistors are pulled low, bringing the outputs
below the active-high and active-low levels. This voltage is typically 2 V for most drivers. In the bidirectional bus
application, the driver of one device, which is in its third state, may be back driven by another driver on the bus
whose voltage in the low state is lower than the third-stated device. This could come about due to differences in the
drivers’ independent power supplies. In this case, the device in the third state will control the line, thus clamping the
line and reducing the signal swing. If the difference voltage between the independent power supplies and the
drivers is small, then this consideration can be ignored. In the typical case, the difference voltage can be as much
as 1 V without significantly affecting the amplitude of the driving signal.
Symbol
Min
Typ
Max
Unit
I
CC
I
CC
40
80
65
115
mA
mA
I
CC
I
CC
20
80
35
115
mA
mA
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