TEA1068T Philips Semiconductors, TEA1068T Datasheet - Page 12

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

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Philips Semiconductors
1996 Apr 23
MUTE input
V
V
I
G
Power-Down input PD
V
V
I
Automatic Gain Control input AGC
I
I
MUTE
pd
line(H)
line(L)
SYMBOL
G
G
G
IH
IL
IH
IL
Versatile telephone transmission circuit
with dialler interface
v
v
v
v
HIGH level input voltage
LOW level input voltage
input current
voltage gain reduction between
MIC+ and MIC to LN
voltage gain from DTMF to QR+ or
QR
HIGH level input voltage
LOW level input voltage
input current in power-down
condition
gain control range from IR to
QR+/QR and from MIC+/MIC to
LN
highest line current for maximum
gain
lowest line current for minimum
gain
voltage gain variation
PARAMETER
V exch
R exch
TEA1068
R line
DC
AC
REG
Fig.9 Supply arrangement.
I SLPE
C3
MUTE = HIGH
MUTE = HIGH; R4 = 100 k ;
single-ended; R
I
between AGC and V
R6 = 110 k between AGC
and V
R6 = 110 k between AGC
and V
between I
I
between AGC and V
line
line
STAB
I line
= 70 mA; R6 = 110 k
= 35 mA; R6 = 110 k
0.5 mA
I
R5
SLPE
EE
EE
12
CONDITIONS
line
LN
SLPE
R9
= 15 mA and
R1
V CC
L
= 300
0.5 mA
V EE
I CC
EE
EE
C1
MBH134
1.5
1.5
peripheral
21
5.5
1.0
MIN.
circuits
I p
8
70
5
23
61
TYP.
19
5.9
1.5
Product specification
TEA1068
V
0.3
15
V
0.3
10
MAX.
17
6.3
2.0
CC
CC
V
V
dB
dB
V
V
dB
mA
mA
dB
UNIT
A
A