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參數(shù)資料
| 型號： | T7264 |
| 英文描述： | T7264 U-Interface 2B1Q Transceiver |
| 中文描述： | T7264 U型接口2B1Q收發(fā)器 |
| 文件頁數(shù)： | 52/54頁 |
| 文件大?。?/td> | 876K |
| 代理商： | T7264 |
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52
Lucent Technologies Inc.
Data Sheet
April 1998
T7264 U-Interface 2B1Q Transceiver
Appendix A. Questions and Answers
(continued)
A61:
(continued)
The following tables provide power consumption
data in several formats to allow customers to
compare transceiver solutions.
The three test condition categories reflected in
the tables have been designated Method A,
which reflects T7264 data sheet measurements;
Method B, which reflects data obtained with a
method used by other vendors; and Method C,
which details revised T7264 measurements.
Method A
* This is the worst-case loop.
3 mW should be added for 85
°
C.
The test conditions reflected in Method B repre-
sent a configuration used by other silicon vendors
which eliminates the far-end transceiver from the
network. This configuration should not be used to
determine a system's total power requirements,
but it can be used for comparison purposes
among silicon solutions.
Method B
* The transceiver under test must be in a local U-loopback
mode.
3 mW should be added for 85
°
C.
Anticipated customer configuration.
The conditions and test results in Method C are
the product of recent investigations into the
device's mature test data. They can be used to
reliably determine system-level power consump-
tion requirements.
Method C
* This is the worst-case loop.
3 mW should be added for 85
°
C.
Anticipated customer configuration.
Test Condition
Loop Configuration
Temperature
Power Supply Voltage
CKOUT
Max. Power Consumption
Value
0 kft*
25
°
C
5 V
15.36 MHz
350 mW
Test Condition
Loop Configuration
Temperature
Power Supply Voltage
CKOUT
Max. Power Consumption
Value
135
load only*
25
°
C
5 V
3-stated
275 mW
Test Condition
Loop Configuration
Temperature
Power Supply Voltage
CKOUT
Max. Power Consumption
Value
0 kft*
25
°
C
5 V
3-stated
300 mW
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