參數(shù)資料
型號(hào): TEA1099
廠商: NXP Semiconductors N.V.
英文描述: Speech and handsfree IC with auxiliary inputs/outputs and analog multiplexer
中文描述: 語音輔助輸入和免提集成電路/輸出和模擬多路復(fù)用器
文件頁數(shù): 16/40頁
文件大小: 185K
代理商: TEA1099
1999 Apr 08
16
Philips Semiconductors
Product specification
Speech and handsfree IC with auxiliary
inputs/outputs and analog multiplexer
TEA1099H
Fig.10 Signal and noise envelope waveforms.
handbook, full pagewidth
MBG354
INPUT SIGNAL
SIGNAL ENVELOPE
NOISE ENVELOPE
4 mV (RMS)
1 mV (RMS)
A
C
C
36 mV
36 mV
B
B
B
A
B
time
A: 85 dB/ms
B: 0.7 dB/ms
B: 0.7 dB/ms
C: 0.07 dB/ms
Decision logic: pins IDT and SWT
Fig.11 Decision logic.
(1) When V
DLC
< 0.2 V,
10
μ
A is forced.
handbook, full pagewidth
MGM303
13 mV
13 mV
TENV
TNOI
RENV
from logic
from dynamic
limiter
RNOI
Vdt
X
X
1
1
10
μ
A
+
10
μ
A
+
10
μ
A
X
1
0
X
1
X
0
X
X
X
1
0
0
0
0
0
X
0
Vref
RIDT
CSWT
SWT
25
24
3
2
7
5
IDT
DUPLEX CONTROLLER
LOGIC
(1)
ATTENUATOR
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