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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)： | 14/24頁 |
| 文件大小： | 133K |
| 代理商： | TEA1066T |
1996 Apr 04
14
Philips Semiconductors
Product specification
Versatile telephone transmission circuit
with dialler interface
TEA1066T
Fig.10 Alternative receiver arrangements.
a. Dynamic earpiece
with less than 450
impedance.
b. Dynamic earpiece with
more than 450
impedance.
c. Magnetic earpiece
with more than 450
impedance.
d. piezoelectric
earpiece.
handbook, full pagewidth
(1)
MBH122
(2)
QR
+
5
QR
4
QR
+
5
QR
4
QR
+
5
QR
4
QR
+
5
VEE
QR
4
12
(1) May be connected to prevent distortion (inductive load).
(2) Required to increase the phase margin (capacitive load).
Fig.11 Variation of gain with line current, with R6 as a parameter.
handbook, full pagewidth
MBH126
6
4
2
0
140
120
100
80
60
40
20
0
78.7 k
48.7 k
110 k
140 k
R6
=
∞
Iline(mA)
Gv
(dB)
R9 = 20
.
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