TEA1066T View Datasheet(PDF) - Philips Electronics

Part Name

Description

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TEA1066T

Versatile telephone transmission circuit with dialler interface

Philips Electronics 

Philips Semiconductors

Versatile telephone transmission circuit

with dialler interface

Product specification

TEA1066T

3

handbook, halfpage

Ip

(1)

(mA)

(2)

2

(3)

1

(4)

MBH124

0

0

1

2

3 VCC (V) 4

Curves (1) and (3) are valid when the receiving amplifier is not driven or when MUTE = HIGH. Curves (2) and (4) are valid when MUTE = LOW and the

receiving amplifier is driven, Vo(rms) = 150 mV, RL = 150 Ω (asymmetrical). Iline = 15 mA; VLN = 4.45 V; R1 = 620 Ω and R9 = 20 Ω.

(1) Ip = 2.55 mA.

(2) Ip = 2.1 mA.

(3) Ip = 1.2 mA.

(4) Ip = 0.75 mA.

Fig.8 Typical current Ip available from VCC for external (peripheral) circuitry with VCC > 2.2 V and VCC > 3 V.

handbook, full pagewidth

9

MICL+

(1)

7

MICL−

a. Magnetic or dynamic

microphone.

17

VCC

8

MICH−

10

MICH+

VEE

12

b. Electret microphone.

10

MICH+

8

MICH−

MBH121

c. piezoelectric microphone.

(1) May be connected to lower the terminating impedance.

Fig.9 Alternative microphone arrangements.

1996 Apr 04

13

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