AS2504
AS2504 is Cordless telephone / answering machine line interface manufactured by austriamicrosystems AG.
Preliminary Data Sheet
®
Austria Mikro Systeme International AG
Key Features
Analogue line interface and speech circuit for a/b terminals on a 28-pin CMOS-IC
2 balanced transmit inputs 3 unbalanced transmit inputs 2 buffered single ended receive outputs
(RL>150Ω)
1 auxiliary single ended receive output
(RL>10kΩ)
Low noise (max. -72dBmp) Soft clipping to avoid harsh distortion Operating range from 15mA to 100mA
(down to 5mA with reduced performance)
Line loss pensation selectable by pin option
Real and plex impedance selectable by external ponents
Side tone adaptation selectable by external ponents
Digital controls input for mode selection Rx...
