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參數(shù)資料
| 型號(hào)： | TEA1066T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 無(wú)繩電話/電話 |
| 英文描述： | Versatile telephone transmission circuit with dialler interface |
| 中文描述： | TELEPHONE SPEECH CKT, PDSO20 |
| 封裝： | PLASTIC, SO-20 |
| 文件頁(yè)數(shù)： | 2/24頁(yè) |
| 文件大?。?/td> | 133K |
| 代理商： | TEA1066T |
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1996 Apr 04
2
Philips Semiconductors
Product specification
Versatile telephone transmission circuit
with dialler interface
TEA1066T
FEATURES
Voltage regulator with adjustable static resistance
Provides supply for external circuitry
Symmetrical low-impedance inputs for dynamic and
magnetic microphones
Symmetrical high-impedance inputs for piezoelectric
microphone
Asymmetrical high-impedance input for electret
microphone
Dual-tone multi-frequency (DTMF) signal input with
confidence tone
Mute input for pulse or DTMF dialling
Power down input for pulse dial or register recall
Receiving amplifier for magnetic, dynamic or
piezoelectric earpieces
Large gain setting range on microphone and earpiece
amplifiers
Line loss compensation facility, line current dependent
(microphone and earpiece amplifiers)
Gain control adaptable to exchange supply
DC line voltage adjustment facility.
GENERAL DESCRIPTION
The TEA1066T is a bipolar integrated circuit that performs
all speech and line interface functions required in fully
electronic telephone sets. The circuit performs electronic
switching between dialling and speech.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
LN
I
line
I
CC
line voltage
line current
internal supply current
I
line
= 15 mA
normal operation
power down input LOW
power down input HIGH
I
line
= 15 mA; MUTE
input HIGH; I
p
= 1.2 mA
I
line
= 15 mA; MUTE
input HIGH; I
p
= 1.7 mA
4.25
10
2.8
4.45
0.96
55
3.05
4.65
140
1.3
82
V
mA
mA
μ
A
V
V
CC
supply voltage for peripherals
2.5
V
G
v
voltage gain range for microphone amplifier
low impedance inputs (pins 7 and 9)
high impedance inputs (pins 8 and 10)
receiving amplifier
operating ambient temperature
44
30
17
25
60
46
39
+75
dB
dB
dB
°
C
T
amb
Line loss compensation
G
v
V
exch
R
exch
gain control
exchange supply voltage
exchange feeding bridge resistance
5.5
24
400
5.9
6.3
60
1000
dB
V
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TEA1066T
SO20
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
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