UBA2051 Overview
Key Specifications
Package: SOP
Operating Voltage: 3.6 V
Length: 17.9 mm
Width: 7.5 mm
Key Features
- Low DC line voltage; operates down to 1.45 V (excluding voltage drop over external polarity guard)
- Line voltage regulator with adjustable DC voltage
- Regulated 3.3 V supply (VDD) for the dialler part and peripherals compatible with: – Speech mode – Ringer mode – Trickle mode
- Unregulated supply (VCC) for the transmission part and peripherals
- Transmit stage with: – Microphone amplifier with symmetrical high-impedance inputs – DTMF input with confidence tone on receive output
