L2501 Ver la hoja de datos (PDF) - Conexant Systems
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L2501 Datasheet PDF : 104 Pages
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1.0 Functional Description
1.2 Technical Specifications
RC224ATL/224ATLV
EmbeddedModem Family
1.2.2 Configurations and Rates
The supported modem configurations and signaling rates are listed in Table 1-1.
In data modes with serial interface selected, DTE rate offsets of + 1%, – 2.5% are
accommodated by adding/deleting stop bits as required. In fax modes, the DTE
rate is 19,200 bps.
Table 1-1. Configurations and Rates
Configuration
Modulation
Transmitter Carrier
Frequency (Hz) ± 0.01%
Data Mode
V.22 bis
V.22
Bell 212A
Bell 103
QAM
DPSK
DPSK
FSK
Fax Mode
V.29
V.27 ter
V.21
QAM
QAM
DPSK
DPSK
FSK
Answer
2400
2400
2400
2225 M
2025 S
Receive
N/A
N/A
1800
1800
1650 M
1850 S
Originate
1200
1200
1200
1270 M
1070 S
Transmit
1700
1700
1800
1800
1650 M
1850 S
Data Rate
(bps)
2400
1200
1200
300
9600
7200
4800
2400
300
Baud
Bits Per Constellation
(Symbols/Sec.) Symbol
Points
600
4
16
600
2
4
600
2
4
300
1
1
2400
2400
1600
1200
300
4
16
3
8
3
8
2
4
1
1
Legend:
QAM
DPSK
FSK
M
S
N/A
Quadrature Amplitude Modulation
Differential Phase Shift Keying
Frequency Shift Keying
Mark condition
Space Condition
Not Applicable
1-2
Conexant
D224ATLVDSC
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