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參數(shù)資料
| 型號(hào)： | DS21Q59LN+ |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 48/76頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX E1 QUAD 100-LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 類(lèi)型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 4/4 |
| 規(guī)程： | E1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類(lèi)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(pán) |
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DS21Q59 Quad E1 Transceiver
52 of 76
22.
CODE MARK INVERSION (CMI)
The DS21Q59 provides a CMI interface for connecting to optical transports. This interface is a unipolar 1T2B-
coded signal. Ones are alternately encoded as a logical 1 or 0 level for the full duration of the clock period. Zeros
are encoded as a 0-to-1 transition at the middle of the clock period. Figure 22-1 shows an example data pattern
and its CMI result. The control bit for enabling CMI is in the OUTAC register, as shown below.
Register Name:
OUTAC
Register Description:
OUTA Control Register
Register Address:
1A Hex
Bit #
7
6
5
4
3
2
1
0
Name
TTLIE
CMII
CMIE
OA4
OA3
OA2
OA1
OA0
NAME
BIT
FUNCTION
TTLIE
7
TTL Input Enable. When this bit is set, the receiver can accept TTL
positive and negative data at the RTIP and RRING inputs. The data is
clocked in on the falling edge of MCLK.
CMII
6
CMI Invert
0 = CMI input data not inverted
1 = CMI input data inverted
CMIE
5
Transmit and Receive CMI Enable
0 = Transmit and receive line interface operates in normal AMI/HDB3 mode
1 = Transmit and receive line interface operate in CMI mode. TTIP is CMI
output and RTIP is CMI input. In this mode of operation TRING and RRING
are no connects.
OA4
4
OUTA Control Bit 4. Inverts OUTA output.
OA3
3
OUTA Control Bit 3. See Table 20-A for details.
OA2
2
OUTA Control Bit 2. See Table 20-A for details.
OA1
1
OUTA Control Bit 1. See Table 20-A for details.
OA0
0
OUTA Control Bit 0. See Table 20-A for details.
Figure 22-1. CMI Coding
0
1
0
1
CLOCK
DATA
CMI
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q59LN+ | 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 |
| DS21S07A | 制造商:Maxim Integrated Products 功能描述: |
| DS21S07AE | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS21S07AE/T | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:SCSI Terminator |
| DS21S07AE/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:IC TERMINATOR SCSI 20-TSSOP |
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