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參數(shù)資料
| 型號： | TEA1065T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Versatile telephone transmission circuit with dialler interface |
| 中文描述： | TELEPHONE SPEECH CKT, PDSO24 |
| 封裝： | PLASTIC, SO-24 |
| 文件頁數(shù)： | 19/28頁 |
| 文件大?。?/td> | 154K |
| 代理商： | TEA1065T |
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March 1994
19
Philips Semiconductors
Product specification
Versatile telephone transmission circuit with
dialler interface
TEA1065
handbook, full pagewidth
MBA558
VCC
IR
LN
VSI
PD
MUTE
DTMF
MIC
MIC
+
620
TEA1065
R4
100
k
RL
600
Iline
C4
100 pF
C7 1 nF
5 to
140 mA
100
μ
F
14
C1
100
μ
F
18
20
19
7
8
17
24
R7
68
k
C6
100 pF
10
μ
F
R1
QR
QR
+
GAR
GAS1
GAS2
SLPE
4
CURL
15
DPI
10
21
REFI
13
VBG
11
DOC
12
1
5
6
2
3
Vi
Vi
VEE
REG
AGC
STAB
R9
20
23
R6
118
k
22
16
9
R5
3.6
k
C3
4.7
μ
F
Vo
Fig.16 Test circuit for defining voltage gain of MIC
+
, MIC
and DTMF inputs.
Voltage gain is defined as G
= 20 Log
V
/V
. For measuring the gain from MIC
+
and MIC
the MUTE input should be LOW or open-circuit, for measuring the DTMF
input MUTE should be HIGH. Inputs not under test should be open-circuit except VSI
that should be connected to V
EE
.
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