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Número de pieza
componentes Descripción
TEA1095TS Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
fabricante
TEA1095TS
Voice switched speakerphone IC
Philips Electronics
TEA1095TS Datasheet PDF : 28 Pages
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Philips Semiconductors
Voice switched speakerphone IC
Product specification
TEA1095
handbook, full pagewidth
INPUT SIGNAL
4 mV (RMS)
1 mV (RMS)
MBG354
SIGNAL ENVELOPE
A
36 mV
B
A: 85 dB/ms
B: 0.7 dB/ms
A
B
NOISE ENVELOPE
C
B: 0.7 dB/ms
C: 0.07 dB/ms
36 mV
B
C
B
time
Fig.7 Signal and noise envelope waveforms.
handbook, full pagewidth
TENV
TNOI
ATTEN-
13 mV
UATOR
RENV
RNOI
13 mV
Vdt
MUTETX
DUPLEX CONTROLLER
LOGIC
IDT
Vref
RIDT
x x 1 1
−
10
µ
A
x 1 0 x
+
10
µ
A
1 x 0 x
+
10
µ
A
x x10
0
0 00 x
0
(note 1)
SWT
CSWT
MBG353
(1) When MUTETX = HIGH +10
µ
A is forced. When MUTERX = HIGH
−
10
µ
A is forced.
Fig.8 Decision logic.
1997 Nov 25
10
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