參數(shù)資料
型號(hào)： T7289A
廠商： Lineage Power
英文描述： DS1 Line Interface(DS1 線(xiàn)接口)
中文描述： DS1的線(xiàn)路接口（DS1的線(xiàn)接口）
文件頁(yè)數(shù)： 11/18頁(yè)
文件大?。?/td> 285K
代理商： T7289A
Data Sheet
January 1998
T7289A DS1 Line Interface
11
Lucent Technologies Inc.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Handling Precautions
Although protection circuitry has been designed into this device, proper precautions should be taken to avoid expo-
sure to electrostatic discharge (ESD) during handling and mounting. Lucent employs a human-body model (HBM)
and a charged-device model (CDM) for ESD-susceptibility testing and protection design evaluation. ESD voltage
thresholds are dependent on the circuit parameters used to define the model. No industry-wide standard has been
adopted for the CDM. However, a standard HBM (resistance = 1500
, capacitance = 100 pF) is widely used and
therefore can be used for comparison purposes. The HBM ESD threshold presented here was obtained by using
these circuit parameters:
Electrical Characteristics
Operating Conditions
T
A
= –40
°
C to +85
°
C; V
DD
= 5 V
±
10%
Table 5. Power Specifications
* Measurement conditions with 50% 1s on the transmit side, T
A
= 25
°
C, and equalizer settings: EC1 = 0, EC2 = 1, EC3 = 0 (V
DD
= 5 V).
Power supply current varies by less than 5% with variations in temperature and power supply voltage.
Parameter
Symbol
V
DD
P
dis
T
stg
Min
–0.5
—
–65
Max
6.5
500
125
Unit
V
mW
°
C
dc Supply Voltage Range
Power Dissipation
Storage Temperature Range
Human-Body Model ESD Threshold
Device
T7289A
Voltage
>2000 V
Parameter
Symbol
P
D
Min
—
Typ
115
Max
138
Unit
mW
Power Dissipation*
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