參數(shù)資料
型號(hào)： SI2439-A-GM
廠商： Silicon Laboratories Inc
文件頁(yè)數(shù)： 8/70頁(yè)
文件大?。?/td> 0K
描述： IC ISOMODEM 33.6KBPS 38-QFN
標(biāo)準(zhǔn)包裝： 364
系列： *
Si2494/39
16
Rev. 1.0
Transmit Carrier
V.92
V.90
V.34
ITU-T V.32bis
ITU-T V.32
ITU-T V.29
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
As specified by ITU-T
1800 Hz ±0.01%
1700 Hz ±1 Hz
1200 Hz ±0.5 Hz
2400 Hz ±1 Hz
Mark (980 Hz ±12 Hz) Space (1180 Hz ±12 Hz)
Mark (1650Hz ±12Hz) Space (1850Hz ±12Hz)
Mark (1070Hz ±12Hz) Space (1270Hz ±12Hz)
Mark (2025Hz ±12Hz) Space (2225Hz ±12Hz)
Output Level
Permissive—Switched network
–9 dBm maximum
Receive Carrier
ITU-T V.90
ITU-T V.34
ITU-T V.32bis
ITU-T V.32
ITU-T V.29
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
As specified by ITU-T
1800 Hz ±7 Hz
2400 Hz ±7 Hz
1200 Hz ±7 Hz
Mark (1650Hz ±12Hz) Space (1850Hz ±12Hz)
Mark (2025Hz ±12Hz) Space (2225Hz ±12Hz)
Mark (1070Hz ±12Hz) Space (1270Hz ±12Hz)
Carrier Detect (level for ITU-T V.22bis, V.22, V.21,
212, 103) in Switched Network
Acquisition (–43 dBm)
Release (–48 dBm)
Hysteresis
2 dBm minimum
ITU-T V.90, V.34, V.32/V.32bis are echo canceling protocols that use signal quality as criteria for maintaining con-
nection. They also provide for self-training detection to force disconnect.
DTE Interface
EIA/TIA-232-E (ITU-T V.24/V.28/ISO 2110)
Line Equalization
Automatic Adaptive
Connection Options
Loss of Carrier in ITU-T V.22bis and lower
Table 8. Protocol Characteristics (Continued)
Item
Specification
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SI2439-A-GMR 制造商:Silicon Laboratories Inc 功能描述:33.6 KBPS ISOMODEM + VOICE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC ISOMODEM 33.6KBPS 38-QFN
SI2456 制造商:SILABS 制造商全稱:SILABS 功能描述:V.90, V.34, V.32BIS ISOMODEM⑩ WITH INTEGRATED GLOBAL DAA
SI2456-FT 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 56KBPS 24TSSOP - Rail/Tube
SI2456-FT/REV F 制造商:Silicon Laboratories Inc 功能描述:NOT RECOMMENDED FOR NEW DESIGNS, SEE SI2457-FT - Rail/Tube
Si2456-FTR 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 56KBPS 24TSSOP - Tape and Reel
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