tea1065t NXP Semiconductors, tea1065t Datasheet - Page 8

• Manufacturer Part Number: tea1065t
• Description: Versatile Telephone Transmission Circuit With Dialler Interface
• Manufacturer: NXP Semiconductors

handbook, halfpage
Philips Semiconductors
March 1994
Versatile telephone transmission circuit with
dialler interface
I
R1 = 620
R9 = 20
Curve (1) and (3) are valid when the receiving amplifier is not driven or when MUTE = HIGH, curves (2) and (4)
are valid when MUTE = LOW and the receiving amplifier is driven, V
(1) = 2.2 mA; (2) = 1.77 mA; (3) = 0.78 mA and (4) = 0.36 mA.
L
R
Fig.8
line
Fig.7 Maximum current I
eq
p
= 17.5 k
= C3
= 15 mA at V
SLPE
Equivalent circuit impedance between LN
and V
R9
R
LN
EE
p
R9
20
L eq
V ref
= 4.45 V
.
R p
C3
4.7 F
p
REG
available from V
handbook, halfpage
(mA)
I P
R1
C1
MBA552
3
2
1
0
V CC
0
LN
V EE
(1)
(2)
(3)
(4)
CC
1
for external (peripheral) circuitry with V
o(rms)
= 150 mV, R
8
2
L
= 150
3
V CC (V)
MBA569
(asymmetrical).
4
CC
2.2 V and V
Product specification
TEA1065
CC
3 V.