SI2403 データシートの表示（PDF） - Silicon Laboratories

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SI2403

V.22BIS ISOMODEM® CHIPSET WITH ERROR CORRECTION

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Si2403

Table 7. Protocol Characteristics

Item

Specification

Data Rate

2400 bps

1200 bps

300 bps

300 bps

Data Format

Bit asynchronous

Compatibility

ITU-T V.22bis

ITU-T V.22bis, V.23, or Bell 212A

ITU-T V.21

Bell 103

Selectable 8, 9, 10, or 11 bits per character

V.23, V.22bis, V.22, V.21, Bell 212A, and Bell 103

Operating Mode

Switched network

Data Modulation

2400 bps

1200 bps

0 to 300 bps

Answer Tone

ITU-T V.22bis, V.22, and V.21 modes

Bell 212A and 103 modes

Transmit Carrier

ITU-T V.22, V.22bis/Bell 212A

Originate mode

Answer mode

ITU-T V.21

Originate mode

Answer mode

Bell 103

Originate mode

Answer mode

Output Level

Permissive—Switched network

Receive Carrier

ITU-T V.22, V.22bis/Bell 212A

Originate mode

Answer mode

ITU-T V.21

Originate mode

Answer mode

Bell 103

Originate mode

Answer mode

Two-wire full-duplex

16-level QAM/600 Baud ±0.01%

4-level PSK/600 Baud ±0.01%

FSK 0–300 Baud ±0.01%

2100 Hz ±3 Hz

2225 Hz ±3 Hz

1200 Hz ±0.5 Hz

2400 Hz ±1 Hz

Mark (980 Hz ±12 Hz) Space (1180 Hz ±12 Hz)

Mark (1650 Hz ±12 Hz) Space (1850 Hz ±12 Hz)

Mark (1270 Hz ±12 Hz) Space (1070 Hz ±12 Hz)

Mark (2225 Hz ±12 Hz) Space (2025 Hz ±12 Hz)

–9 dBm maximum

2400 Hz ±7 Hz

1200 Hz ±7 Hz

Mark (1850 Hz ±12 Hz) Space (1650 Hz ±12 Hz)

Mark (1850 Hz ±12 Hz) Space (1650 Hz ±12 Hz)

Mark (2225 Hz ±12 Hz) Space (2025 Hz ±12 Hz)

Mark (1270 Hz ±12 Hz) Space (1070 Hz ±12 Hz)

14

Rev. 1.2

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