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參數資料
| 型號： | W6692 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 通信及網絡 |
| 英文描述： | PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器) |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-100 |
| 文件頁數： | 12/84頁 |
| 文件大?。?/td> | 473K |
| 代理商： | W6692 |
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W6692
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7.2 Layer 1 Functions Descriptions
The layer 1 functions includes:
Transmitter/Receiver which conform to the electrical specifications of ITU-T I.430
Receiver clock recovery and timing generation
Output phase delay (deviation) compensation
Layer 1 activation/deactivation procedures
D channel access control
Frame alignment
Multiframe synchronization
Test functions
7.2.1 S/T Interface Transmitter/Receiver
According to ITU-T I.430, pseudo-ternary code with 100% pulse width is used in both directions of
transmission on the S/T interface. The binary "1" is represented by no line signal (zero volt), whereas
a binary "0" is represented by a positive or negative pulse.
Data transmissions on the S/T interface are arranged as frame structures. The frame is 250
μ
s long
and consists of 48 bits, which corresponds to a 192 kbit/s line rate. Each frame carries two octets of
B1 channel, two octets of B2 channel and four D channel bits. Therefore, the 2B+D data rate is 144
kbit/s. The frame structure is shown in Figure 7.1.
The frame begin is marked by a framing bit, which is followed by a DC balancing bit. The first binary
"0" following the framing bit balancing bit is of the same polarity as the framing bit balancing bit, and
subsequent binary zeros must alternate in polarity.
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PDF描述 |
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| W6693A | USB Bus ISDN S/T Interface Controller(USB總線的ISDN S/T接口控制器) |
| W6694 | PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器) |
| W6810 | SINGLE-CHANNEL VOICEBAND CODEC |
| W6810IE | SINGLE-CHANNEL VOICEBAND CODEC |
| W6810IR | SINGLE-CHANNEL VOICEBAND CODEC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W6692A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TE Mode S/T Controller with PCI 2.2 Interface and ACPT |
| W6692ACD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN LINE INTERFACE|BASIC|CMOS|QFP|100PIN|PLASTIC |
| W6692ACF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN LINE INTERFACE|BASIC|CMOS|QFP|100PIN|PLASTIC |
| W6694 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:USB Bus ISDN S/T-Controller |
| W6694A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TE Mode S/T Controller with USB 1.1 Interface |
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