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參數(shù)資料
| 型號(hào)： | DS21Q50LN |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 63/87頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TRANSCEIVER E1 QD IND 100LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS |
| 產(chǎn)品變化通告： | Product Discontinuation 20/Feb/2012 |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 功能： | 收發(fā)器 |
| 接口： | E1 |
| 電路數(shù)： | 4 |
| 電源電壓： | 3.14 V ~ 3.47 V |
| 電流 - 電源： | 230mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LQFP |
| 供應(yīng)商設(shè)備封裝： | 100-LQFP（14x14） |
| 包裝： | 托盤 |
| 包括： | AIS 警報(bào)檢測器和發(fā)生器，回送功能，PRBS 發(fā)生器 / 檢測器，遠(yuǎn)程檢測器和發(fā)生器 |
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DS21Q50
66 of 87
18.
INTERLEAVED PCM BUS OPERATION
In many architectures, the PCM outputs of individual framers are combined into higher speed PCM buses
to simplify transport across the system backplane. The DS21Q50 can be configured to allow PCM data
buses to be multiplexed into higher speed data buses, eliminating external hardware, saving board space
and cost. The DS21Q50 uses a channel interleave method. See Figure 19-4 and Figure 19-7 for details
about the channel interleave.
The interleaved PCM bus option (IBO) supports three bus speeds. The 4.096MHz bus speed allows two
PCM data streams to share a common bus. The 8.192MHz bus speed allows four PCM data streams to
share a common bus. The 16.384MHz bus speed allows eight PCM data streams to share a common bus.
See Figure 18-1 for an example of four transceivers sharing a common 8.192MHz PCM bus. The receive
elastic stores of each transceiver must be enabled. Through the IBO register, the user can configure each
transceiver for a specific bus speed and position. For all IBO bus configurations, each transceiver is
assigned an exclusive position in the high-speed PCM bus. When the device is configured for IBO
operation, the TSYNCx pin should be configured as an output or as an input connected to ground. The
user cannot supply a TSYNCx signal in this mode.
Register Name:
IBOR
Register Description:
Interleave Bus Operation Register
Register Address:
1C Hex
Bit
7
6
5
4
3
2
1
0
Name
—
IBOTCS
SCS1
SCS0
IBOEN
DA2
DA1
DA0
NAME
BIT
FUNCTION
—
7
Not Assigned. Should be set to 0.
IBOTCS
6
IBO Transmit Clock Source
0 = TCLK pin is the source of transmit clock
1 = transmit clock is internally derived from the clock at the SYSCLK pin
SCS1
5
System Clock Select Bit 1 (Table 18-2)
SCS0
4
System Clock Select Bit 0 (Table 18-2)
IBOEN
3
Interleave Bus Operation Enable
0 = interleave bus operation disabled
1 = interleave bus operation enabled
DA2
2
Device Assignment Bit 3 (Table 18-1)
DA1
1
Device Assignment Bit 2 (Table 18-1)
DA0
0
Device Assignment Bit 1 (Table 18-1)
Table 18-1. IBO Device Assignment
DA2
DA1
DA0
FUNCTION
0
1st Device on bus
0
1
2nd Device on bus
0
1
0
3rd Device on bus
0
1
4th Device on bus
1
0
5th Device on bus
1
0
1
6th Device on bus
1
0
7th Device on bus
1
8th Device on bus
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q50LN+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad 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 |
| DS21Q50L-W+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad 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 |
| DS21Q50N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| DS21Q55 | 功能描述:IC TXRX QUAD T1/E1/J1 SCT 256BGA RoHS:否 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標(biāo)準(zhǔn)包裝:750 系列:* |
| DS21Q552 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V Quad T1 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 |
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