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參數(shù)資料
| 型號： | L7585F |
| 英文描述： | Full-Feature,Low-Power SLIC and Switch |
| 中文描述： | 全功能，低功耗SLIC和開關(guān) |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 441K |
| 代理商： | L7585F |
Preliminary Data Sheet
September 2001
L7585F Full-Feature, Low-Power SLIC and Switch
Features
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Low active power
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Quiet tip/ring polarity reversal
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Distortion-free on-hook transmission
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35 V to 60 V power supply operation
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14 operating states:
— Forward battery active
— Reverse battery active
— Ground start (3)
— Forward battery ring open
— Reverse battery ring open
— Reverse battery tip open
— High impedance
— Ringing (2)
— Low current (2)
— Disconnect
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Self-test in all operating states
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Independent, adjustable ac and dc parameters:
— Switchhook detector threshold
— Loop current limit
— dc feed resistance
— Termination impedance
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Integrated ringing access relay
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Integrated test-in relay
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Integrated relay driver
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Integrated ring trip detector
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Thermal protection
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44-pin, surface-mount, plastic package (PLCC)
Description
The L7585F Full-Feature, Low-Power Subscriber
Loop Interface Circuit (SLIC) and Switch integrates
the battery feed, test access relay, and ringing relay
that are necessary to interface a codec to the tip and
ring of a subscriber loop into one low-power, low-cost
package. It is built using a 90 V complementary bipo-
lar (CBIC) process and a 320 V Bipolar-CMOS-
DMOS (BCDMOS) process. The device is available
in a 44-pin PLCC package.
The device can be connected directly to the Agere
Systems Inc. T8531/T8532 16-Channel Programma-
ble Codec Chip Set without the need for any ac inter-
face components.
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