ML7005 Просмотр технического описания (PDF) - Oki Electric Industry
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ML7005 Datasheet PDF : 25 Pages
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¡ Semiconductor
ML7005
AC Characteristics 5 DTMF Receiver
Parameter
DTMF Detect Amplitude
DTMF Non-detect Amplitude
Detect Frequency
Non-detect Frequency
Level Twist
Noise to Signal Ratio
Dial Tone Rejection Ratio
Signal Repetition Time
Time to Detect
Time to Reject
Interdigit Pause Time
Acceptable Drop Out Time
Detect Delay Time
Detect Hold Time
SP Delay Time
Symbol
VDETDT1
VDETDT2
VREJDT
fDETDT
fREJDT
Condition
2.7 V £ VDD £ 5.5 V
4.5 V £ VDD £ 5.5 V
Per Frequency at DTRIO
To Nominal Frequency
VTWIST
VN/S
VREJDT
tCYCDT0
tCYCDT1
tDETDT0
tDETDT1
tREJDT0
tREJDT1
tPOSDT0
tPOSDT1
tBRKDT10
tBRKDT11
tBRKDT20
tBRKDT21
tDELDT0
tDELDT1
tHOLDT0
tHOLDT1
tSP
VHigh Group - VLow Group
N/S (N : 0.3 to 3.4 kHz)
360 to 440 Hz
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
Detect
DTTIM = "0"
DTTIM = "1"
Non-detect
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
*1 SP = "1" DTTIM = "1"
(Before output) DTTIM = "0"
SP = "0" DTTIM = "1"
(During output) DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1", "0"
(VDD = 2.7 to 5.5 V, Ta = –30 to +85°C)
Min. Typ. Max. Unit
–42 — –10
–42 —
0
dBm
—
— –60
–1.8 — +1.8
3.8
—
—
%
—
— –3.8
–6.0 — +6.0
— –12 —
dB
—
45
—
60
—
—
90
—
—
35
—
—
49
—
—
—
—
10
—
—
24
21
—
—
30
—
—
ms
—
—
0.4
—
—
0.4
—
—
3
—
—
10
12
26
37
24
41
49
15
20
27
24
28
35
0.2 0.6 1.0
*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.
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