UBA1702T View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
UBA1702T Datasheet PDF : 24 Pages
| |||
Philips Semiconductors
Line interrupter driver and ringer
Product specification
UBA1702; UBA1702A
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.
Miscellaneous
• Separated ground pins for transmission circuit interface
and control signals (e.g. for TEA1064A)
• Possibility to supply the microcontroller with an external
voltage source.
APPLICATIONS
• Telephone sets with software controlled ringer function
• Telephone sets with electronic hook switch.
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.
The UBA1702; UBA1702A incorporates several
protections, a driver for the line interrupter and a ringer.
Because of the practical division of functions between the
microcontroller, the transmission circuit and the UBA1702;
UBA1702A, it is possible to have a higher integration level
thereby reducing significantly the number of discrete
components in a telephone set.
ORDERING INFORMATION
TYPE NUMBER
UBA1702
UBA1702A
UBA1702T
UBA1702AT
NAME
DIP28
DIP28
SO28
SO28
PACKAGE
DESCRIPTION
plastic dual in-line package; 28 leads (600 mil)
plastic dual in-line package; 28 leads (600 mil)
plastic small outline package; 28 leads; body width 7.5 mm
plastic small outline package; 28 leads; body width 7.5 mm
VERSION
SOT117-1
SOT117-1
SOT136-1
SOT136-1
1997 Sep 29
2
|
|
Share Link: 