NXP Semiconductors UBA1707
The UBA1707 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 includes an auxiliary amplifier, a loudspeaker channel and general purpose switches.| Part No. | UBA1707 |
|---|---|
| Datasheet | UBA1707 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Cordless telephone / answering machine line interface |
| Buy | Stock & Price |
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 (CTR 21)
● Line current limitation for protection
● Electronic hook switch control input
● Transmit amplifier with: – Symmetrical inputs – Fixed gain – Large signals handling capability.
● Receive amplifier with fixed gain
● Transmit and receive amplifiers AGC for line loss compensation. Auxiliary amplifier
● Fixed gain. Loudspeaker channel
● Dual inputs
● Rail-to-rail output stage for single-ended load drive
● High output current capability
● Dynamic limiter to prevent distortion
● Digital volume control
● Fixed maximum gain. General purpose switches
● Three switches with open-collector. 3-wires serial bus interface Allows to control:
● DC mask (voltage or current regulation)
● Receive amplifier mute function ORDERING INFORMATION TYPE NUMBER UBA1707T UBA1707TS PACKAGE NAME SO28 SSOP28
DESCRIPTION
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