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UBA1706

Features: Line interface` Low DC line voltage; operates down to 1.2 V (excluding polarity guard)` Voltage regulator with adjustable DC voltage` DC mask for voltage or current regulation (CTR21)` Line current limitation for protection` Electronic hook switch control input` Transmit amplifier with: ...

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SeekIC No. : 004535281 Detail

UBA1706: Features: Line interface` Low DC line voltage; operates down to 1.2 V (excluding polarity guard)` Voltage regulator with adjustable DC voltage` DC mask for voltage or current regulation (CTR21)` Lin...

UBA1706 Data Sheet

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Part Number:
UBA1706
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
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Product Details

Description



Features:

Line interface
` Low DC line voltage; operates down to 1.2 V (excluding polarity guard)
` Voltage regulator with adjustable DC voltage
` DC mask for voltage or current regulation (CTR21)
` Line current limitation for protection
` Electronic hook switch control input
` Transmit amplifier with:
   Symmetrical inputs
   Fixed gain
   Large signal handling capability.
` Receive amplifier with fixed gain
` Transmit and receive amplifiers Automatic Gain Control (AGC) for line loss compensation.
General purpose switches
Two switches with open-collector.
3-wire serial bus interface
    Allows control of:
` DC mask (voltage or current regulation)
` Receive amplifier mute function
` AGC:
    On/off
    Slope
    Istart line current.
` The state of the general purpose switches
` Global power-down mode.
Supply
Operates with external supply voltage from 3.0 to 5.5 V.


Application

· Cordless base stations
· Mains or battery-powered telephone sets.


Pinout

Connection Diagram


Specifications

Symbol
Parameter
CONDITIONS
Min.
Max.
Unit
VCC
 supply voltage  
GND - 0.4
5.5
V
VLN
 positive continuous line voltage on pin LN  
GND - 0.4
12.0
V
repetitive line voltage during switch-on or
line interruption		  
GND - 0.4
13.2
V
VSWIn
 voltage on pins SWI1 and SWI2 continuous
GND - 0.4
12.0
V
during switching
GND - 0.4
13.2
V
Vn(max)
 maximum voltage on all other pins  
GND - 0.4
VCC+4
V
ILN
 current sunk by pin LN see Fig.12
-
150
mA
ISWIn
 continuous current sunk by pins SWI1 and SWI2 bit SWCn = 1
-
20
mA
Ptot
 total power dissipation Tamb = 75 °C; see Fig.12
-
454
mW
Tstg
 IC storage temperature  
-40
+125
Tamb
 ambient temperature  
-25
+75
Tj
 junction temperature  
-
+125



Description

The UBA1706 is a BiCMOS integrated circuit intended for use in mains-powered telecom terminals. It performs all speech and line interface functions, DC mask for voltage or current regulation and electronic hook switch control. The device also includes general purpose switches.

Most of the characteristics are programmable via a 3-wire serial bus interface.




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