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UBA1702AT 数据手册 ( 数据表 ) - Philips Electronics

UBA1702 image

零件编号
UBA1702AT

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24 Pages

File Size
183.7 kB

生产厂家
Philips
Philips Electronics Philips

GENERAL DESCRIPTION
The UBA1702; UBA1702A performs the high voltage interface and ringer functions of the corded analog telephone set in close cooperation with a microcontroller and transmission circuit.


FEATURES
Speech part
• Driver for the line interrupter that can be either a PMOST when UBA1702 is used or a PNP when UBA1702A is used
• Adjustable over-current protection
• Adjustable over-voltage protection for transmission circuit
• Adjustable mute (dialling mode voltage; DMO or NSA)
• Adjustable current loop detection (hook switch status)
• Microcontroller supply
• Provision for electronic hook switch.
Ringer part
• Over-voltage protection
• Ringer frequency output for frequency discrimination
• Adjustable ringer threshold for piezo-driver enable
• Three bits ringer volume control
• Bridge-tied-load (BTL) output stage for piezo transducer
• Fast start-up microcontroller supply.

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零件编号
产品描述 (功能)
PDF
生产厂家
ARINC 429 LINE DRIVER AND LINE RECEIVER
Holt Integrated Circuits
Tone Ringer
SANYO -> Panasonic
Tong Ringer
TSC Corporation
Tone Ringer
System Logic Semiconductor
Tone Ringer
Integral Corp.
Tone Ringer
ROHM Semiconductor
Tone Ringer
Integral Corp.
TONE RINGER
Unspecified
Tong Ringer ( Rev : V_A08 )
TSC Corporation
Tone Ringer
Integral Corp.

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