NXP Semiconductors TEA1066T
The TEA1066T is a bipolar integrated circuit that performs all speech and line interface functions required in fully electronic telephone sets. The circuit performs electronic switching between dialling and speech. FUNCTIONAL DESCRIPTION Supplies: VCC, LN, SLPE, REG and STAB Power for the TEA1066T and its peripheral circuits is usually obtained from the telephone line.| Part No. | TEA1066T |
|---|---|
| Datasheet | TEA1066T Download |
| Manufacturer |  NXP Semiconductors |
| Description | Versatile telephone transmission |
| Buy | Stock & Price |
FEATURES
● Voltage regulator with adjustable static resistance● Provides supply for external circuitry
● Symmetrical low-impedance inputs for dynamic and magnetic microphones
● Symmetrical high-impedance inputs for piezoelectric microphone
● Asymmetrical high-impedance input for electret microphone
● Dual-tone multi-frequency (DTMF) signal input with confidence tone
● Mute input for pulse or DTMF dialling
● Power down input for pulse dial or register recall QUICK REFERENCE DATA SYMBOL VLN Iline ICC VCC line voltage line current internal supply current supply voltage for peripherals PARAMETER CONDITIONS Iline = 15 mA normal operation power down input LOW power down input HIGH Iline = 15 mA; MUTE input HIGH; Ip = 1.2 mA Iline = 15 mA; MUTE input HIGH; Ip = 1.7 mA Gv voltage gain range for microphone amplifier low impedance inputs (pins 7 and 9) high impedance inputs (pins 8 and 10) receiving amplifier Tamb ∆Gv Vexch Rexch operating ambient temperature Line loss compensation gain control exchange supply voltage exchange feeding bridge resistance 5.5 24 400 5.9 − − 44 30 17 −25 − − − − MIN.
