參數(shù)資料
型號(hào): TEA1099H
廠商: NXP SEMICONDUCTORS
元件分類: 無(wú)繩電話/電話
英文描述: Speech and handsfree IC with auxiliary inputs/outputs and analog multiplexer
中文描述: TELEPHONE SPEECH CKT, PQFP44
封裝: 10 X 10 MM, 1.75 MM HEIGHT, PLASTIC, QFP-44
文件頁(yè)數(shù): 18/40頁(yè)
文件大?。?/td> 185K
代理商: TEA1099H
1999 Apr 08
18
Philips Semiconductors
Product specification
Speech and handsfree IC with auxiliary
inputs/outputs and analog multiplexer
TEA1099H
Fig.12 Voice switch.
(1) C = constant.
handbook, full pagewidth
Gvtx
+
Gvrx
=
C
(1)
VOICE SWITCH
RSTAB
RSWR
STAB
21
22
SWR
to
microphone
amplifier
from
SWT
from
volume
control
to
loudspeaker
amplifier
DUPLEX CONTROLLER
MGM304
Fig.13 Switch-over behaviour.
handbook, halfpage
400
200
0
+
400
+
200
VSWT
VIDT (mV)
Gvtx, Gvrx
(10 dB/div)
Gvtx
RVOL
(
)
11400
7600
3800
0
idle
mode
0
3800
7600
11400
Tx mode
Rx mode
Gvrx
MGM305
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