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TEA1064A View Datasheet(PDF) - Philips Electronics

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TEA1064A Datasheet PDF : 36 Pages
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Philips Semiconductors
Low voltage versatile telephone transmission circuit
with dialler interface and transmit level dynamic limiting
Product specification
TEA1064A
andbook, full pagewidth
R16
56
Vi
C1 100 µF
Ip
10
µF
C15
220
µF
Vi
19 16
13 VCC2 VCC1
IR
R15
392
R1
620
1
LN
QR4
9
MIC+
8
MIC
12
DTMF
TEA1064A
QR+ 5
R4
100
GAR 6 k
14
MUTE
15
PD
7
DLS/MMUTE
VEE
REG
AGC
2
GAS1
R7
68
3 k
GAS2
STAB SLPE
11
17
18
10
20
C16
470 nF
C3
R5
470
R6
3.6
R9
nF
k
20
100 µF
RL
600
C4
100 pF
C7 1 nF
C6
100 pF
Iline
Vo
11 to
140 mA
MGR076
For measuring the gain from MIC+ and MICthe MUTE input should be LOW
or open-circuit; for measuring the DTMF input, the MUTE input should be HIGH.
Inputs not being tested should be open-circuit.
Fig.22 Test circuit for defining voltage gain of MIC, MIC+ and DTMF inputs; voltage gain (Gv) is defined as
20 log Vo / Vi .
March 1994
24
 

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