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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)： | 7/24頁 |
| 文件大?。?/td> | 133K |
| 代理商： | TEA1066T |
1996 Apr 04
7
Philips Semiconductors
Product specification
Versatile telephone transmission circuit
with dialler interface
TEA1066T
The attenuation is almost constant over the whole audio
frequency range. Figure 5 shows a conventional
Wheatstone bridge anti-side-tone circuit that can be used
as an alternative. Both bridge types can be used with
either resistive or complex set impedances.
The anti-side-tone network as used in the standard
application (see Fig.13) attenuates the signal from the line
with 32 dB. The attenuation is nearly flat over the
audio-frequency range.
Instead of the previously-described special TEA1066
bridge, the conventional Wheatstone bridge configuration
can be used as an alternative anti-side-tone circuit. Both
bridge types can be used with either a resistive set
impedance or a complex set impedance.
Fig.4 Equivalent circuit of TEA1060 family anti-side-tone bridge.
handbook, full pagewidth
MSA500 - 1
IR
R3
R8
SLPE
R9
Zline
VEE
Zbal
im
Rt
R1
R2
LN
Fig.5 Equivalent circuit of an anti-side-tone network in a Wheatstone bridge configuration.
handbook, full pagewidth
MSA501 - 1
IR
R8
SLPE
R9
R1
LN
Zline
VEE
Zbal
RA
im
Rt
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