tea1065t NXP Semiconductors, tea1065t Datasheet - Page 2

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

Philips Semiconductors
FEATURES
ORDERING INFORMATION
Notes
1. SOT101-1; 1998 Jun 18.
2. SOT137-1; 1998 Jun 18.
QUICK REFERENCE DATA
March 1994
TEA1065
TEA1065T
V
I
I
V
G
T
SYMBOL
line
CC
G
amb
Current and voltage regulator mode with adjustable
static resistances
Provides supply for external circuitry
Symmetrical high-impedance inputs for piezoelectric
microphone
Asymmetrical high-impedance input for electret
microphone
DTMF signal input with confidence tone
Mute input for pulse or DTMF dialling
Power-down input for pulse dial or register recall
Digital pulse input to drive an external switch transistor
Receiving amplifier for magnetic, dynamic or
piezoelectric earpieces
LN
CC
Versatile telephone transmission circuit with
dialler interface
V
V
EXTENDED TYPE
NUMBER
line voltage
normal operation line current range
internal supply consumption
supply voltage for peripherals
voltage gain range
line loss compensation
operating ambient temperature range
power-down input LOW
power-down input HIGH
microphone amplifier
earpiece amplifier
gain control range
PARAMETER
24
24
PINS
DIL
SO24
PIN POSITION
I
I
MUTE input
HIGH
I
I
line
line
P
P
CONDITIONS
= 1.2 mA
= 1.55 mA
= 15 mA
= 15 mA;
2
GENERAL DESCRIPTION
The TEA1065 is a bipolar integrated circuit which performs
all speech and line interface functions that are required in
fully electronic telephone sets with adjustable DC mask.
The circuit performs electronic switching between dialling
and speech internally.
Large gain setting range on microphone and earpiece
amplifiers
Line loss compensation facility, line current dependent
(on microphone and earpiece amplifiers)
Adjustable gain control
DC line voltage adjustment facility
PACKAGE
4.25
10
2.7
2.5
30
20
5.5
25
plastic
plastic
MIN.
MATERIAL
4.45
1.14
73
5.9
TYP.
SOT101L
SOT137A
Product specification
4.65
150
1.5
105
46
45
6.3
75
MAX.
TEA1065
CODE
V
mA
mA
V
V
dB
dB
dB
C
A
UNIT