NXP Semiconductors TEA1064B
The TEA1064B is a bipolar integrated circuit that performs all the speech and line interface functions required in fully electronic telephone sets. It performs electronic switching between dialling and speech. The IC operates at line voltages down to 1.8 V DC (with reduced performance) to facilitate the use of more telephone sets connected in parallel.| Part No. | TEA1064B |
|---|---|
| Datasheet | TEA1064B Download |
| Manufacturer |  NXP Semiconductors |
| Description | Low voltage versatile telephone transmission |
| Buy | Stock & Price |
FEATURES
● Low DC line voltage; operates down to 1.8 V (excluding polarity guard)● Voltage regulator with low voltage drop and adjustable static resistance
● DC line voltage adjustment facility
● Provides a supply for external circuits
● Dynamic limiting (speech-controlled) in transmit direction prevents distortion of line signal and sidetone
● Symmetrical high-impedance inputs (64 kΩ) for dynamic, magnetic or piezo-electric microphones
● Asymmetrical high-impedance input (32 kΩ) for electret microphones
● DTMF signal input
● Confidence tone in the earpiece during DTMF dialling
● Mute input for disabling speech during pulse or DTMF dialling
● Power-down input for improved performance during pulse dial or register recall (flash)
● Receiving amplifier for dynamic, magnetic or piezo-electric earpieces ORDERING INFORMATION EXTENDED TYPE NUMBER TEA1064B TEA1064BT Notes 1. SOT146-1; 1998 Jun 18. 2. SOT163-1; 1998 Jun 18. PACKAGE PINS 20 20 PIN POSITION DIL mini-pack MATERIAL plastic plastic...
