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參數(shù)資料
| 型號： | L8575 |
| 英文描述： | Dual-Resistive,Low-Cost Subscriber Line Interface Circuit(SLIC) |
| 中文描述： | 雙電阻，低成本用戶線接口電路（SLIC） |
| 文件頁數(shù)： | 9/36頁 |
| 文件大?。?/td> | 633K |
| 代理商： | L8575 |
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Advance Data Sheet
March 1997
L8575
Dual-Resistive, Low-Cost SLIC
Lucent Technologies Inc.
9
Electrical Characteristics
Generally, minimum and maximum values are testing requirements. However, some parameters may not be tested
in production because they are guaranteed by design and device characterization. Typical values reflect the design
center or nominal value of the parameter; they are for information only and are not a requirement. Minimum and
maximum values apply across the entire temperature range (–40
°
C to +85
°
C) and entire battery range (–42 V to
–58 V). Unless otherwise specified, typical values are defined as 25
°
C, V
DDA
= 5 V, V
DDD
= 5 V, V
BAT
= –48 V. Posi-
tive currents flow into the device.
Table 2. Operating Conditions and Powering
1. Not to exceed 26 grams of water per kilogram of dry air.
2. Includes V
BAT
current through the external dc feed resistors, assuming the loop is open.
3. Includes power dissipation in the external dc feed resistors per application diagram, assuming the loop is open.
4. V
BAT
power supply rejection depends on the battery noise cancellation circuit. The performance stated here applies only during the active
state and assumes proper battery noise cancellation, i.e., a high-pass filter from V
BAT
to CBN and a resistor from RGBN to AGND which is 50
times the dc feed resistor connecting V
BAT
to Ring (refer to the application diagram).
5. This parameter is not tested in production. It is guaranteed by design and device characterization.
Parameter
Min
–40
5
Typ
—
—
Max
85
95
1
Unit
°
C
%RH
Temperature Range
Humidity Range
Supply Voltage:
V
DDA
V
DDD
V
BAT
V
DDA
– V
DDD
Supply Currents (both channels active):
I
VDDA
+ I
VDDD
(5 V)
I
VBAT
(–48 V)
2
Supply Currents (both channels powerdown):
I
VDDA
+ I
VDDD
(5 V)
I
VBAT
(–48 V)
2
Total Power Dissipation (5 V; –48 V)
3
:
Active (both channels)
Powerdown (both channels)
Power-supply Rejection
4, 5
(50 mVrms ripple):
Tip/Ring and XMT
Thermal
5
:
Thermal Resistance (still air)
Operating Tjc
4.75
4.75
–42
—
—
—
–48
—
5.5
5.5
–58
±
0.5
V
V
V
V
—
—
—
—
19.0
–27.5
mA
mA
—
—
—
—
18.0
–2.0
mA
mA
—
—
—
—
1.40
185
W
mW
Refer to Figure 3.
—
—
—
—
47
155
°
C/W
°
C
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