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參數(shù)資料
| 型號： | DS3170+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 210/230頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX DS3/E3 100-CSBGA |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 640 |
| 功能： | 單芯片收發(fā)器 |
| 接口： | DS3，E3 |
| 電路數(shù)： | 1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 電流 - 電源： | 120mA |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LBGA，CSBGA |
| 供應(yīng)商設(shè)備封裝： | 100-CSBGA（11x11） |
| 包裝： | 托盤 |
| 包括： | DS3 調(diào)幀器，E3 調(diào)幀器，HDLC 控制器，芯片內(nèi) BERT |
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DS3170 DS3/E3 Single-Chip Transceiver
80 of 230
Arbitrary framing format support – Accepts a signal with an arbitrary framing format. The Line overhead/stuff
periods are removed from the data stream using an overhead mask signal.
Detects alarms and errors – Detects DS3 alarm conditions (SEF, OOMF, OOF, LOF, COFA, AIS, AIC, RDI,
and Idle) and errors (framing, parity, and FEBE), or E3 alarm conditions (OOF, LOF, COFA, AIS, and RDI/RAI)
and errors (framing, parity, and REI).
Serial DS3/E3 overhead extraction port – Extracts all DS3 or E3 overhead and outputs it on a serial
interface.
HDLC overhead extraction – An HDLC channel can be extracted from the DS3 or E3 data stream.
FEAC extraction – A FEAC channel can be extracted from the DS3 or E3 data stream.
Trail Trace extraction – Extracts and outputs the G.832 E3 TR byte.
10.6.3 Transmit Formatter
The Transmit Formatter receives a DS3 or E3 data stream and performs framing generation, error insertion,
overhead insertion, and AIS/Idle generation for C-bit DS3, M23 DS3, G.751 E3, or G.832 E3 framing protocols.
The bits in a byte are transmitted MSB first, LSB last. When they are input serially, they are input in the order they
are to be transmitted. The bits in a byte in an outgoing signal are numbered in the order they are transmitted, 1
(MSB) to 8 (LSB). However, when a byte is stored in a register, the MSB is stored in the highest numbered bit (7),
and the LSB is stored in the lowest numbered bit (0). This is to differentiate between a byte in a register and the
corresponding byte in a signal.
10.6.4 Receive Framer
The Receive Framer receives the incoming DS3,or E3, ine/tributary data stream, performs appropriate framing, and
terminates and extracts the associated overhead bytes.
The Receive Framer processes a C-bit format DS3, M23 format DS3, G.751 format E3, or G.832 format E3 data
stream, performing framing, performance monitoring, overhead extraction, and generates downstream AIS, if
necessary.
The bits in a byte are received MSB first, LSB last. When they are output serially, they are output MSB first, LSB
last. The bits in a byte in an incoming signal are numbered in the order they are received, 1 (MSB) to 8 (LSB).
However, when a byte is stored in a register, the MSB is stored in the highest numbered bit (7), and the LSB is
stored in the lowest numbered bit (0). This is to differentiate between a byte in a register and the corresponding
byte in a signal.
Some bits, bit groups, or bytes (data) are integrated before being stored in a register. Integration requires the data
to have the same new data value for five consecutive occurrences before the new data value will be stored in the
data register. Unless stated otherwise, integrated data may have an associated unstable indication. Integrated data
is considered unstable if the received data value does not match the currently stored (integrated) data value or the
previously received data value for eight consecutive occurrences. The unstable condition is terminated when the
same value is received for five consecutive occurrences.
10.6.4.1.1 Receive DS3 Framing
DS3 framing determines the DS3 frame boundary. In order to identify the DS3 frame boundary, first the subframe
boundary must be found. The subframe boundary is found by identifying the subframe alignment bits FX1, FX2, FX3,
and FX4, which have a value of one, zero, zero, and one respectively. See Figure 10-13. Once the subframe
boundary is found, the multiframe frame boundary can be found. The multiframe boundary is found by identifying
the multiframe alignment bits M1, M2, and M3, which have a value of zero, one, and zero respectively. The DS3
framer is an off-line framer that only updates the data path frame counters when either an out of frame (OOF) or an
out of multiframe (OOMF) condition is present. The use of an off-line framer reduces the average time required to
reframe, and reduces data loss caused by burst error. The DS3 framer has a Maximum Average Reframe Time
(MART) of approximately 1.0 ms.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS3170_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:DS3/E3 Single-Chip Transceiver Single-Chip Transceiver for DS3 and E3 |
| DS3170+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC DS3/E3 Single-Chip Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS3170DK | 功能描述:網(wǎng)絡(luò)開發(fā)工具 DS3170 Dev Kit RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| DS3170L | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:DS3/E3 Single-Chip Transceiver |
| DS3170LN | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:DS3/E3 Single-Chip Transceiver |
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