¡ Semiconductor
ML7005
AC Characteristics 2 Call Progress Tone (CPT) Generator
(VDD = 2.7 to 5.5 V, Ta = –30 to +85°C)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
Tone Transmit Amplitude
VCPT
—
–4 –2.5 –1 dBm
Output Frequency
fCPT
—
380 400 420 Hz
Total Harmonic Distortion
THDCPT Harmonics - Fundamental
— –39 –23 dB
AC Characteristics 3 Call Progress Tone (CPT) Detector
(VDD = 2.7 to 5.5 V, Ta = –30 to +85°C)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
CPT Detect Amplitude
VDETCP
2.7 V £ VDD £ 5.5 V
4.5 V £ VDD £ 5.5 V
–46 —
–46 —
–6
0
dBm
CPT Non-detect Amplitude
VREJCP fin = 350 to 450 Hz at CPDIO
—
— –60
Time to Detect
Time to Reject
tDETCP
tREJCP
Detect
Non-detect
30
—
—
ms
—
—
10
CPT Detect Delay Time
CPT Detect Hold Time
tDELCP
tHOLCP
See Figure 1.
10
18
30
ms
10
18
30
CPT Detect Frequency
fDETCP
—
350 — 450 Hz
530 —
—
CPT Non-detect Frequency
fRETCP
—
Hz
—
— 290
CPDI
CPDO
(CPDR)
tREJCP
tDETCP
tDELCP
Figure 1 CPT Detect Timing
tHOLCP
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