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參數(shù)資料
| 型號(hào)： | DS21348TN |
| 英文描述： | 3.3V E1/T1/J1 Line Interface |
| 中文描述： | 3.3 E1/T1/J1線(xiàn)路接口 |
| 文件頁(yè)數(shù)： | 19/73頁(yè) |
| 文件大?。?/td> | 551K |
| 代理商： | DS21348TN |
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DS21348/Q348
19 of 73
ACRONYM
PIN
I/O
DESCRIPTION
SCLKE
4
I
Receive & Transmit Synchronization Clock Enable.
SCLKE
combines RSCLKE (CCR5.3) and TSCLKE (CCR5.2).
0 = disable 2.048 MHz synchronization transmit and receive mode
1 = enable 2.048 MHz synchronization transmit and receive mode
Transmit Clock.
A 2.048MHz or 1.544MHz primary clock. Used to
clock data through the transmit side formatter. Can be sourced
internally by MCLK or RCLK. See Common Control Register 1 and
Figure 3-3.
3-State Control.
Set high to 3-state all outputs and I/O pins
(including the parallel control port). Set low for normal operation.
Useful in board level testing.
Transmit Negative Data.
Sampled on the falling edge (CCR2.1 =
0) or the rising edge (CCR2.1 = 1) of TCLK for data to be
transmitted out onto the line.
Transmit Power-Down.
0 = normal transmitter operation
1 = powers down the transmitter and 3-states the TTIP and TRING
pins
Transmit Positive Data.
Sampled on the falling edge (CCR2.1 = 0)
or the rising edge (CCR2.1 = 1) of TCLK for data to be transmitted
out onto the line.
Transmit Tip and Ring [TTIP & TRING].
Analog line driver
outputs. These pins connect via a step-up transformer to the line.
See Section 7 for details.
Transmit Data Source Select Bits 0 & 1 [H/W Mode].
These
inputs determine the source of the transmit data. See Table 4-6.
Positive Supply.
5.0V ±5%
TCLK
43
I
TEST
26
I
TNEG
42
I
TPD
13
I
TPOS
41
I
TTIP/
TRING
34/
37
O
TX0/
TX1
V
DD
14/
15
21/
36
20
22/
35
I
-
VSM
V
SS
I
-
Voltage Supply Mode.
Should be tied high for 5V operation.
Signal Ground.
NOTES:
1)
G.703 requires an accuracy of ±50ppm for both T1 and E1. TR62411 and ANSI specs require an
accuracy of ±32ppm for T1 interfaces.
2)
* Denotes active low.
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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(chēng):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(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 |
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