UBA1706 – Cordless telephone line interface

Part Number : UBA1706

Function : Cordless telephone line interface

Manufactures : NXP

Images :

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UBA1706 image

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pinout

Description :

INTEGRATED CIRCUITS DATA SHEET UBA1706 Cordless telephone line interface Objective specification Supersedes data of 1999 Mar 08 File under Integrated Circuits, IC17 1999 Jun 04 Philips Semiconductors Objective specification Cordless telephone line interface 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. ORDERING INFORMATION TYPE NUMBER UBA1706TS PACKAGE NAME SSOP24 DESCRIPTION plastic shrink small outline package; 24 leads; body width 5.3 mm APPLICATIONS • Cordless base stations UBA1706 • Mains or battery-powered telephone sets. GENERAL 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. VERSION SOT340-1 1999 Jun 04 2 Philips Semiconductors Objective specification Cordless telephone line interface UBA1706 QUICK REFERENCE DATA Iline = 15 mA; VCC = 3.3 V; RSLPE = 10 Ω; AGC pin connected to GND; Zline = 600 Ω; ZSET = 619 Ω; EHI = HIGH; f = 1 kHz; Tamb = 25 °C; bit AGC at logic 1, all other configuration bits at logic 0; measured in the test circuit of Fig.14; unless otherwise specified. SYMBOL VCC ICC Iline VLN RREGC PARAMETER supply voltage current consumption from pin VCC line current operating range DC line voltage DC mask slope in current regulation mode voltage gain transmit amplifier from TXI to LN ∆Gv(trx) gain control range for transmit and receive amplifiers with respect to Iline = 15 mA VTXI = 50 mV (RMS) Iline = 90 mA 10.6 36.9 − 11.6 37.9 6.5 12.6 38.9 − dB dB dB receive amplifier from RXI to RXO VRXI = 2 mV (RMS) Iline > 35 mA (typical); RLVI = 1 MΩ; RRGL = 7.15 kΩ; bit CRC = 1 normal operation; bit PD = 0 power-down mode; bit PD = 1 normal operation with reduced performance CONDITIONS MIN. 3.0 − − 11 3 2.7 − TYP. − 2.2 110 − − 3.0 1.4 MAX. 5.5 3.2 150 140 11 3.3 − UNIT V mA µA mA mA V kΩ Gv(trx) 1999 Jun 04 3 Philips Semicon […]

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UBA1706 Datasheet


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