msm7510 Oki Semiconductor, msm7510 Datasheet - Page 7

• Manufacturer Part Number: msm7510
• Description: 300 Bps Full Duplex Fsk Modem ? Itu-t V.2
• Manufacturer: Oki Semiconductor

Demodulator/analog input (Al, EAI) characteristics
Receive Signal
Amplitude
Receive Signal
Detect Amplitude (CD)
Hysteresis (CD)
CD Delay Time
CD Hold Time
Receive Data (RD)
Bias Distortion
Answer Tone Detect
(CD) Freq.
Answer Tone Detect,
Non-Detect Amplitude
(CD)
Input Resistance
*
Parameter
Semiconductor
0 dBm = 0.775 Vrms
AI
CD
Symbol
V
V
V
t
t
f
F
R
V
D
R
V
CDD
CDH
ASR
HYS
AON
AOF
OFF
ON
EAI
BS
AI
AI
Figure 1 Carrier Detect (CD) Timing
FSK Signal, at AI
I/O Alternative Pattern
t
CDD
300 bps, I/O Alternative Pattern
FSK Signal, Answer Tone
Non-Detect, at AI
FSK Signal, at AI
V
Detect, at AI
Condition
See Fig. 1
ON
2100 Hz
EAI
Æ V
AI
OFF
OFF Æ OFF
( V
OFF Æ ON
DD
= +2.7 V to +5.5 V, Top = –40°C to +85°C)
Min.
t
–48
–10
–20
–46
CDH
—
—
—
20
—
—
20
5
Typ.
—
—
—
15
40
—
—
—
—
10
—
2
Max. Unit
–42
–60
MSM7510
–6
—
—
20
60
10
20
–6
—
—
dBm
dBm
dBm
7/12
MW
ms
ms
kW
dB
dB
Hz
%