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MSM7510 Datasheet

  • MSM7510

  • 300 bps Full Duplex FSK Modem – ITU-T V.21

  • 114.52KB

  • OKI

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Semiconductor
Demodulator/analog input (Al, EAI) characteristics
MSM7510
( V
DD
= +2.7 V to +5.5 V, Top = 鈥?0擄C to +85擄C)
Parameter
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
F
AOF
R
AI
R
EAI
Non-Detect, at AI
AI
EAI
鈥?/div>
鈥?/div>
20
鈥?/div>
10
鈥?/div>
鈥?0
鈥?/div>
鈥?/div>
MW
kW
Symbol
V
AI
V
ON
V
OFF
V
HYS
t
CDD
t
CDH
D
BS
f
ASR
V
AON
Condition
FSK Signal, at AI
FSK Signal, at AI
I/O Alternative Pattern
V
ON
脝
V
OFF
See Fig. 1
FSK Signal, Answer Tone
300 bps, I/O Alternative Pattern
2100 Hz
Detect, at AI
OFF
脝
ON
OFF
脝
OFF
Min.
鈥?/div>
鈥?/div>
鈥?8
鈥?/div>
5
20
鈥?0
鈥?0
鈥?6
Typ.
鈥?/div>
鈥?/div>
鈥?/div>
2
15
40
鈥?/div>
鈥?/div>
鈥?/div>
Max.
鈥?
鈥?2
鈥?/div>
鈥?/div>
20
60
10
20
鈥?
dB
Unit
dBm
dBm
dBm
dB
ms
ms
%
Hz
*
0 dBm = 0.775 Vrms
AI
CD
t
CDD
t
CDH
Figure 1 Carrier Detect (CD) Timing
7/12

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