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MSM7732-01TB Scheda tecnica(PDF) 14 Page - OKI electronic componets

Il numero della parte MSM7732-01TB
Spiegazioni elettronici  Audio CODEC
PDF  29 Pages
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Produttore elettronici  OKI [OKI electronic componets]
Homepage  http://www.oki.com
Logo OKI - OKI electronic componets

MSM7732-01TB Scheda tecnica(HTML) 14 Page - OKI electronic componets

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FEDL7732-01-10
OKI Semiconductor
MSM7732-01
14/29
AC Characteristics (DTMF and Other Tones)
(VDD = 2.4 V to 3.3 V, Ta = –40°C to +85°C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Frequency Difference
DFT
DTMF Tones, Other Tones
–1.5
—
+1.5
%
VTL
Transmit
Tones
DTMF (Low)
–18
–16
–14
dBm0
VTH
(Gain setting
0 dB)
DTMF (High) and
Other Tones
–16
–14
–12
dBm0
VRL
Receive
Tones
DTMF (Low)
–10
–8
–6
dBm0
Original (Reference) Tones
Signal Level *4
VRH
(Gain setting
–6 dB)
DTMF (High) and
Other Tones
–8
–6
–4
dBm0
Relative Level of DTMF Tones
RDTMF
VTH/VTL,VRH/VRL
+1
+2
+3
dB
*4
Does not include the setting value for the programmable gain.
AC Characteristics (Programmable Gain Stages)
(VDD = 2.4 V to 3.3 V, Ta = –40°C to +85°C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Gain Accuracy
DG
All gain stages, to programmed value
–1
0
+1
dB
AC Characteristics (Voice Detect Function)
(VDD = 2.4 V to 3.3 V, Ta = –40°C to +85°C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
TVON
—
5
—
ms
Voice Detection Time
TVOF
Silence>Voice
(Voice/Silence differential: 10 dB)
140
160
180
ms
Voice Detection Accuracy
DVX
For detection level set values by
CR6-B6, B5
–2.5
0
2.5
dB



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