tea1065t NXP Semiconductors, tea1065t Datasheet - Page 22
tea1065t
Manufacturer Part Number
tea1065t
Description
Versatile Telephone Transmission Circuit With Dialler Interface
Manufacturer
NXP Semiconductors
Datasheet
1.TEA1065T.pdf
(28 pages)
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Manufacturer
Quantity
Price
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DTMF dialling requires a different protection arrangement.
telephone
line
BAS11
(4 )
D1
D4
BZX79c
D2
D3
BV2
D5
Fig.19 Typical application of the TEA1065, with a piezoelectric earpiece and pulse dialling.
3.65
R3
k
100 k
R2
130 k
Z bal
R4
C7
100 nF
715
C5
R11
1 nF
R8
C4
100 pF
17
8
7
4
5
6
15
R9a
R9b
5
IR
QR
QR
GAR
MIC
MIC
SLPE
1 M
24
100 pF
R16
C6
GAS1
DOC
12
2
68 k
15 k
R15
R7
GAS2
BSJ177
3
JFP1
MOSN1
BUK554
VSI
TEA1065
14
LN
C15
6.8 F
1
REFI
13
620
VBG
R1
11
R13
30
k
R14
30
k
CURL
15
V CC
3.6
R5
k
STAB
21
9
REG
MUTE
DTMF
AGC
V EE
DPI
22
PD
C3
4.7 F
19
20
18
10
16
23
R6
MBA560
C1
100 F
control circuits
from dial
and