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參數(shù)資料
| 型號： | TEA1066T |
| 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, PDSO20 |
| 封裝： | PLASTIC, SO-20 |
| 文件頁數(shù)： | 15/24頁 |
| 文件大?。?/td> | 133K |
| 代理商： | TEA1066T |
1996 Apr 04
15
Philips Semiconductors
Product specification
Versatile telephone transmission circuit
with dialler interface
TEA1066T
Table 1
Values of resistor R6 for optimum line loss compensation, for various usual values of exchange supply
voltage V
exch
and exchange feeding bridge resistance R
exch
; R9 = 20
V
exch
(V)
R6 (k
)
R
exch
= 400
61.9
100
140
X
R
exch
= 600
48.7
78.7
110
X
R
exch
= 800
X
68
93.1
120
R
exch
= 1000
X
60.4
82
102
24
36
48
60
Fig.12 Test circuit for defining voltage gain of MICL+, MICL
, MICH+ and MICH
DTMF inputs.
Voltage gain is defined as: G
= 20 log
V
/V
. For measuring the gain from MICL+, MICL
or MICH+ and MICH
,
the MUTE input should be LOW or
open; for measuring the DTMF input, MUTE should be HIGH. Inputs not under test should be open.
handbook, full pagewidth
Iline
MBH127
R6
R5
3.6
k
R9
20
20
SLPE
STAB
AGC
REG
VEE
12
18
11
19
GAS2
GAS1
2
3
R7
68 k
R4
100 k
C4
100 pF
C7 1 nF
C6
100 pF
100
μ
F
RL
600
Vo
VCC
17
1
LN
R1
620
10 to 140 mA
10
μ
F
Vi
C1
100
μ
F
Vi
7, 8
9, 10
13
15
16
IR
MICL
+
/MICH
+
MICL
/MICH
DTMF
MUTE
14
PD
TEA1066T
QR
+
GAR
5
QR
4
6
C3
4.7
μ
F
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