GL6962 Просмотр технического описания (PDF) - Hynix Semiconductor
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GL6962 Datasheet PDF : 12 Pages
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Application Circuit
GL6962/GL6962A
R 10 12V
13µ
Telephone
Line
R2
130K
1
C5
10
LN
IR
C2
100nF
R1
620¥ Ø
13
VCC
C1
100µF +
R4
R3
3.92k
C4
100pF
C7
1 nF
4
QR
5
RGA
MIC+
7
GL6962
11
DTMF
12
(1)MUTE
from dial
and
control circuit
MIC-
6
SLPE TGA1 TGA2 REG AGC
Iref
VEE
16
2
3
14
15
8
9
R8
C6
R7
390
RVA(R16-14)
R5
Zbal
R9
20¥ Ø
R6
3. 6k
C8
1 nF
+
C3
4.7•F
¥Ø
(1) Pin 12 is active LOW ( MUTE ) for GL6962A.
Fig. 5 Typical application of GL6962, shown there with piezo-electric earpiece and DTMF dialing.
(The diode bridge, the zener diode and R10 limit current into, and the voltage across, the circuit
during line transients. A different protection requirement is required for pulse dialing or register
recall.)
12
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