MSM7524 Ver la hoja de datos (PDF) - Oki Electric Industry
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MSM7524 Datasheet PDF : 21 Pages
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¡ Semiconductor
MSM7524
Call Progress Tone (CPT) Detector
Parameter
Detect Amplitude
Non-detect Amplitude
Hysteresis of Detect Amplitude
Detect Frequency
Time to Detect
Time to Reject
Detect Delay Time
Detect Hold Time
Non-detect Frequency
Symbol
VDETCP
VREJCP
VHYSCP
fDETCP
tDETCP
tREJCP
tDELCP
tHOLCP
fREJCP
Condition
(VDD = +5 V ±10%, Ta = –25°C to 85°C)
Min. Typ. Max. Unit
fIN: 330 to 640 Hz,
–40 —
0 dBm
at GS2
—
— –60 dBm
—
—
4.0
— dB
—
330 — 640 Hz
Detect
70
—
— ms
Non-detect —
—
35 ms
Refer to Fig. 4.
35
50
70 ms
—
50
— ms
700
—
—
—
Hz
—
— 270
tREJCP
CPI
tDETCP
tDELCP
CP
tHOLCP
Figure 4 CPT Detect Timing
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