ml7020mb Oki Semiconductor, ml7020mb Datasheet - Page 12

• Manufacturer Part Number: ml7020mb
• Description: 1200 Bps Modem For Remote Control Systems
• Manufacturer: Oki Semiconductor

AC Characteristics (Call Progress Tone Section)
1 Semiconductor
CPT input
Transmit level
Transmit frequency
Distortion rate
Detection level
Non-detection level
Detection frequency
Non-detection
frequency
Detection
persistence period
Detection delay time
Detection hold time
DETB
Parameter
t
Symbol
THD
REJCP
V
V
t
f
t
t
t
V
DETCP
f
DETCP
HOLCP
REJCP
DELCP
f
DETCP
REJCP
rejCP
CPT
CPT
CPT
Figure 4 Call progress tone detection timing
See Figure 4.
400 Hz, level of LI1O and LI2O
400 Hz, level of LI1O and LI2O
Pin TO
Condition
During 400 Hz output
During 800 Hz output
Pin TO
Pin TO
t
DETCP
—
—
Non-detection
Detection
–21.5
Min.
380
780
–46
360
510
—
—
—
30
10
10
—
(V
DD
t
DELCP
= 4.5 to 5.5 V, Ta = –40 to +85°C)
–20.0
Typ.
400
800
17
17
—
—
—
—
—
—
—
—
–18.5
Max.
420
820
–23
–60
440
300
–6
10
30
30
—
—
FEDL7020-02
t
HOLCP
ML7020
dBm
dBm
dBm
Unit
ms
ms
ms
ms
Hz
Hz
dB
Hz
Hz
Hz
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