- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9561 > DS21348TN (Maxim Integrated Products)IC LIU LN T1/E1/J1 3.3V 44-TQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | DS21348TN |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 41/76頁(yè) |
| 文件大小： | 0K |
| 描述： | IC LIU LN T1/E1/J1 3.3V 44-TQFP |
| 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： | 160 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 規(guī)程： | T1/E1/J1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-TQFP |
| 供應(yīng)商設(shè)備封裝： | 44-TQFP（10x10） |
| 包裝： | 托盤(pán) |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)當(dāng)前第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)
DS21348/DS21Q348
46 of 76
6.2 Loopbacks
6.2.1 Remote Loopback (RLB)
When RLB (CCR6.6) is enabled, the DS21348 is placed into remote loopback. In this loopback, data
from the clock/data recovery state machine will be looped back to the transmit path passing through the
jitter attenuator if it is enabled. The data at the RPOS and RNEG pins will be valid while data presented
at TPOS and TNEG will be ignored. See Figure 1-1 for details.
If the Automatic Remote Loop Back Enable (CCR6.5) is set to a one, the DS21348 will automatically go
into remote loop back when it detects the loop-up code programmed in the Receive Up Code Definition
Registers (RUPCD1 and RUPCD2) for a minimum of 5 seconds. When the DS21348 detects the loop
down code programmed in the Receive Loop-Down Code Definition registers (RDNCD1 and RDNCD2)
for a minimum of 5 seconds, the DS21348 will come out of remote loop back. The ARLB can also be
disabled by setting ARLBE to a zero.
6.2.2 Local Loopback (LLB)
When LLB (CCR6.7) is set to a one, the DS21348 is placed into Local Loopback. In this loopback, data
on the transmit-side will continue to be transmitted as normal. TCLK and TPOS/TNEG will pass through
the jitter attenuator (if enabled) and be output at RCLK and RPOS/RNEG. Incoming data from the line at
RTIP and RRING will be ignored. If Transmit Unframed All Ones (CCR3.7) is set to a one while in LLB,
TTIP and TRING will transmit all ones while TCLK and TPOS/TNEG will be looped back to RCLK and
RPOS/RNEG. See Figure 1-1 for more details.
6.2.3 Analog Loopback (ALB)
Setting ALB (CCR6.4) to a one puts the DS21348 in Analog Loopback. Signals at TTIP and TRING will
be internally connected to RTIP and RRING. The incoming signals at RTIP and RRING will be ignored.
The signals at TTIP and TRING will be transmitted as normal. See Figure 1-1 for more details.
6.2.4 Dual Loopback (DLB)
Setting both CCR6.7 and CCR6.6 to a one, LLB and RLB respectively, puts the DS21348 into Dual
Loopback operation. The TCLK and TPOS/TNEG signals will be looped back through the jitter
attenuator (if enabled) and output at RCLK and RPOS/RNEG. Clock and data recovered from RTIP and
RRING will be looped back to the transmit-side and output at TTIP and TRING. This mode of operation
is not available when implementing hardware operation. See Figure 1-1 for more details.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VI-23Z-MV-F4 | CONVERTER MOD DC/DC 2V 60W |
| VI-260-CU-B1 | CONVERTER MOD DC/DC 5V 200W |
| VI-25H-CU-B1 | CONVERTER MOD DC/DC 52V 200W |
| VI-23X-MX-F3 | CONVERTER MOD DC/DC 5.2V 75W |
| MS27484T16F35PD | CONN PLUG 55POS STRAIGHT W/PINS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21348TN+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface 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 |
| DS21348TNB | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 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 |
| DS21348T-W | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 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 |
| DS21349 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.3V T1/J1 Line Interface Unit |
| DS21349DK | 功能描述:網(wǎng)絡(luò)開(kāi)發(fā)工具 DS21349 Design 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(píng)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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。