TEA1068T Philips Semiconductors, TEA1068T Datasheet - Page 16

• Manufacturer Part Number: TEA1068T
• Description: Versatile telephone transmission circuit with dialler interface
• Manufacturer: Philips Semiconductors

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Philips Semiconductors
1996 Apr 23
Versatile telephone transmission circuit
with dialler interface
Voltage gain is defined as; G
C1
100 F
V i
10 F
Fig.15 Test circuit for defining voltage gain of the receiving amplifier.
v
= 20 log V
o
/V
IR
MIC
MIC
DTMF
MUTE
PD
i
.
V EE
V CC
C3
4.7
F
REG
TEA1068
620
AGC
R1
R6
STAB
16
R5
3.6
k
LN
SLPE
GAS1
GAS2
GAR
R9
20
QR
QR
10 F
R4
100
k
R7
Z L
C6
100 pF
C7 1 nF
100 F
C4
100 pF
V o
600
MBH139
I line
Product specification
10 to 140 mA
TEA1068