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參數(shù)資料
| 型號(hào)： | DS21554LN |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類(lèi)： | Digital Transmission Interface |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PQFP100 |
| 封裝： | 14 X 14 MM, LQFP-100 |
| 文件頁(yè)數(shù)： | 26/117頁(yè) |
| 文件大?。?/td> | 698K |
| 代理商： | DS21554LN |
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DS21354 & DS21554
16 of 117
Signal Name:
TCHBLK
Signal Description:
Transmit Channel Block
Signal Type:
Output
A user programmable output that can be forced high or low during any of the 32 E1 channels.
Synchronous with TCLK when the transmit side elastic store is disabled. Synchronous with TSYSCLK
when the transmit side elastic store is enabled. Useful for blocking clocks to a serial UART or LAPD
controller in applications where not all E1 channels are used such as Fractional E1, 384 kbps (H0), 768
kbps or ISDN–PRI . Also useful for locating individual channels in drop–and–insert applications, for
external per–channel loopback, and for per–channel conditioning. See Section 12 for details.
Signal Name:
TSYSCLK
Signal Description:
Transmit System Clock
Signal Type:
Input
1.544 MHz , 2.048 MHz , 4.096 MHz or 8.192 MHz clock. Only used when the transmit side elastic
store function is enabled. Should be tied low in applications that do not use the transmit side elastic store.
See section 18 on page 86 for details on 4.096 MHz and 8.192 MHz operation using the Interleave Bus
Option.
Signal Name:
TLCLK
Signal Description:
Transmit Link Clock
Signal Type:
Output
4 kHz to 20 kHz demand clock (Sa bits) for the TLINK input. See Section 18 for details.
Signal Name:
TLINK
Signal Description:
Transmit Link Data
Signal Type:
Input
If enabled, this pin will be sampled on the falling edge of TCLK for data insertion into any combination
of the Sa bit positions (Sa4 to Sa8). See Section 14.1 for details.
Signal Name:
TSYNC
Signal Description:
Transmit Sync
Signal Type:
Input / Output
A pulse at this pin will establish either frame or multiframe boundaries for the transmit side. Via TCR1.1,
the DS21354/554 can be programmed to output either a frame or multiframe pulse at this pin. This pin
can also be configured as an input via TCR1.0. See Section 19 for details.
Signal Name:
TSSYNC
Signal Description:
Transmit System Sync
Signal Type:
Input
Only used when the transmit side elastic store is enabled. A pulse at this pin will establish either frame or
multiframe boundaries for the transmit side. Should be tied low in applications that do not use the
transmit side elastic store.
Signal Name:
TSIG
Signal Description:
Transmit Signaling Input
Signal Type:
Input
When enabled, this input will sample signaling bits for insertion into outgoing PCM E1 data stream.
Sampled on the falling edge of TCLK when the transmit side elastic store is disabled. Sampled on the
falling edge of TSYSCLK when the transmit side elastic store is enabled.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2155G | DATACOM, FRAMER, PBGA100 |
| DS21600SN | PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| DS21600N | PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDIP8 |
| DS2155LN | DATACOM, FRAMER, PQFP100 |
| DS21602N | PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDIP8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21554LN+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3/5V E1 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2155DK | 功能描述:網(wǎng)絡(luò)開(kāi)發(fā)工具 RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類(lèi)型:Ethernet to Wi-Fi Bridges 工具用于評(píng)估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類(lèi)型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| DS2155G | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1/E1/J1 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2155G/T&R | 制造商:Maxim Integrated Products 功能描述:DS2155 T1/E1/J1 SCT 100P CSBGA T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LIU T1/E1/J1 SCT 100P CSBGA 制造商:Maxim Integrated Products 功能描述:Network Controller & Processor ICs T1/E1/J1 Transceiver |
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