PBL38812 Overview
The PBL 388 12 contains all the necessary circuitry, amplifiers, detectors, parators and control functions to implement a high performance, voice-switched, ”hands-free ” function in an answering machine. The gain dynamics (attenuation between channels) is settable (25dB or 50dB) via CTR pin that also control two mute levels. A background noise detector in the transmitting channel reduces the influence of continuous...
PBL38812 Key Features
- Settable gain dynamics (25 or 50 dB)
- Low power consumption, totally 1.0mA at 3.3V typical
- Background noise pensation in the transmitting channel with hold function
- Exellent noise performance
- Both channel input amplifiers have balanced inputs
- Minimum of external ponents needed for function
- 16-pin SO and 18-pin DIP encapsulation
- package )
- Rx in 14
- 3400 Hz, Relative 1 kHz VCMP = VRef