Philips Semiconductors
Product specification
Low voltage transmission circuits with
dialler interface
TEA1062; TEA1062A
andbook, full pagewidth
13
V
7
CC
MIC
6
7
7
MIC
MIC
(1)
6
MIC
6
MIC
MIC
V
EE
9
MSA505
(a)
(b)
(c)
(a) Magnetic or dynamic microphone.
(b) Electret microphone.
(c) Piezoelectric microphone.
(1) Resistor may be connected to reduce the terminating impedance.
Fig.11 Alternative microphone arrangements.
handbook, full pagewidth
(1)
4
(2)
4
4
9
QR
EE
QR
QR
9
9
V
V
V
EE
EE
MSA506
(a)
(b)
(c)
(a) Dynamic earpiece.
(b) Magnetic earpiece.
(c) Piezoelectric earpiece.
(1) Resistor may be connected to prevent distortion (inductive load).
(2) Resistor is required to increase the phase margin (capacitive load).
Fig.12 Alternative receiver arrangements.
15
1997 Sep 03
NXP [ NXP ]
