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ML7005MB Scheda tecnica(PDF) 11 Page - OKI electronic componets

Il numero della parte ML7005MB
Spiegazioni elettronici  DTMF Transceiver
PDF  25 Pages
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Produttore elettronici  OKI [OKI electronic componets]
Homepage  http://www.oki.com
Logo OKI - OKI electronic componets

ML7005MB Scheda tecnica(HTML) 11 Page - OKI electronic componets

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¡ Semiconductor
ML7005
11/24
AC Characteristics 5 DTMF Receiver
*1 See the figure 3 for timing.
The input level includes the entire range indicated in VDETDT1 and VDETDT2.
The input frequency includes the entire range indicated in fDETDT.
Parameter
Symbol
Condition
Typ.
Unit
DTMF Detect Amplitude
VDETDT1
—
Min.
Max.
–42
–10
dBm
—0
–42
—
–60
—
Per Frequency at DTRIO
2.7 V £ VDD £ 5.5 V
(VDD = 2.7 to 5.5 V, Ta = –30 to +85°C)
4.5 V £ VDD £ 5.5 V
DTMF Non-detect Amplitude
VREJDT
Signal Repetition Time
tCYCDT0
tCYCDT1
Time to Detect
tDETDT0
tDETDT1
ms
—
90
—
——
60
DTTIM = "0"
DTTIM = "1"
Detect Frequency
fDETDT
—
+1.8
–1.8
Non-detect Frequency
fREJDT
——
3.8
—
–3.8
—
—
+6.0
–6.0
VHigh Group - VLow Group
Level Twist
VTWIST
–12
—
—
N/S (N : 0.3 to 3.4 kHz)
Noise to Signal Ratio
VN/S
45
—
—
360 to 440 Hz
Dial Tone Rejection Ratio
VREJDT
%
dB
Time to Reject
tREJDT0
tREJDT1
—
49
—
——
35
Acceptable Drop Out Time
tBRKDT10
tBRKDT11
tBRKDT20
tBRKDT21
Interdigit Pause Time
tPOSDT0
tPOSDT1
Detect Delay Time
tDELDT0
tDELDT1
Detect Hold Time
tHOLDT0
tHOLDT1
SP Delay Time
tSP
—
—10
—
—24
—
21
—
—
30
—
—
—
0.4
—
—
0.4
—
—3
—
—10
26
12
37
41
24
49
20
15
27
28
24
35
To Nominal Frequency
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
Detect
Non-detect
SP = "1"
(Before output)
SP = "0"
(During output)
0.6
0.2
1.0
DTTIM = "1", "0"
*1
VDETDT2



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