TEA1065 View Datasheet(PDF) - Philips Electronics
Part Name
Description
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TEA1065 Datasheet PDF : 28 Pages
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Philips Semiconductors
Versatile telephone transmission circuit with
dialler interface
Product specification
TEA1065
handbook, full pagewidth
Vi
C1 100 µF
10 µF
Vi
R1
620 Ω
21
13
12
1
11
17 VCC
IR
REFI
DOC
LN
VBG
QR− 4
8
MIC+
QR+ 5
7
MIC−
CURL 15
19
DTMF
TEA1065
GAR 6
20
MUTE
2
GAS1
18
PD
DPI 10
14
VSI
VEE
16
REG AGC
22
23
C3
R6
4.7
118
µF
kΩ
STAB
9
R5
3.6
kΩ
3
GAS2
SLPE
24
R9
20 Ω
Iline
100 µF
RL
Vo
600 Ω
R4
C4
100 100 pF
kΩ
C7 1 nF
5 to
140 mA
R7
68
kΩ C6
100 pF
MBA558
Voltage gain is defined as Gv = 20 Log Vo/Vi. For measuring the gain from MIC+
and MIC− the MUTE input should be LOW or open-circuit, for measuring the DTMF
input MUTE should be HIGH. Inputs not under test should be open-circuit except VSI
that should be connected to VEE.
Fig.16 Test circuit for defining voltage gain of MIC+, MIC− and DTMF inputs.
March 1994
19
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