參數(shù)資料
型號(hào)： DS2151Q
英文描述： T1 Single-Chip Transceiver
中文描述： T1單芯片收發(fā)器
文件頁(yè)數(shù)： 34/51頁(yè)
文件大?。?/td> 1100K
代理商： DS2151Q
DS2151Q
34 of 51
LBO SELECT IN LICR
Table 12-2
L2
L1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
L0
0
1
0
1
0
1
0
1
LINE BUILD OUT
0 to 133 feet/0 dB
133 to 266 feet
266 to 399 feet
399 to 533 feet
533 to 655 feet
-7.5 dB
-15 dB
-22.5 dB
APPLICATION
DSX-1/CSU
DSX-1
DSX-1
DSX-1
DSX-1
CSU
CSU
CSU
Due to the nature of the design of the transmitter in the DS2151Q, very little jitter (less then 0.005 UIpp
broad-band from 10 Hz to 100 kHz) is added to the jitter present on TCLK. Also, the waveforms that
they create are independent of the duty cycle of TCLK. The transmitter in the DS2151Q couples to the
T1 transmit twisted pair via a 1:1.15 or 1:1.36 step up transformer as shown in Figure 12-1. In order for
the devices to create the proper waveforms, the transformer used must meet the specifications listed in
Table 12-3.
TRANSFORMER SPECIFICATIONS
Table 12-3
SPECIFICATION
Turns Ratio
Primary Inductance
Leakage Inductance
Intertwining Capacitance
DC Resistance
RECOMMENDED VALUE
1:1 (receive) and 1:1.15 or 1:1.36 (transmit)
±
5%
600
μ
H minimum
1.0
μ
H maximum
40 pF maximum
1.2 ohms maximum
12.3 JITTER ATTENUATOR
The DS2151Q contains an onboard jitter attenuator that can be set to a depth of either 32 or 128 bits via
the JABDS bit in the Line Interface Control Register (LICR). The 128-bit mode is used in applications
where large excursions of wander are expected. The 32-bit mode is used in delay sensitive applications.
The characteristics of the attenuation are shown in Figure 12-4. The jitter attenuator can be placed in
either the receive path or the transmit path by appropriately setting or clearing the JAS bit in the LICR.
Also, the jitter attenuator can be disabled (in effect, removed) by setting the DJA-bit in the LICR. In
order for the jitter attenuator to operate properly, a crystal with the specifications listed in Table 12-4
below must be connected to the XTAL1 and XTAL2 pins. The jitter attenuator divides the clock
provided by the 6.176 MHz crystal at the XTAL1 and XTAL2 pins to create an output clock that contains
very little jitter. Onboard circuitry will pull the crystal (by switching in or out load capacitance) to keep it
long-term averaged to the same frequency as the incoming T1 signal. If the incoming jitter exceeds either
120UIpp (buffer depth is 128 bits) or 28 UIpp (buffer depth is 32 bits), then the DS2151Q will divide the
attached crystal by either 3.5 or 4.5 instead of the normal 4 to keep the buffer from overflowing. When
the device divides by either 3.5 or 4.5, it also sets the Jitter Attenuator Limit Trip (JALT) bit in the
Receive Information Register 2 (RIR2.2).
相關(guān)PDF資料
PDF描述
DS2151 T1 Single-Chip Transceiver
DS2154L Enhanced E1 Single Chip Transceiver
DS2154LN Enhanced E1 Single Chip Transceiver
DS2154 WSD 151 SOLDERING STATION 230V UKWSD 151 SOLDERING STATION 230V UK; Frequency, supply max:60Hz; Frequency, supply min:50Hz; Height:101mm; Length:166mm; Power, input:150W; Temperature range:50(degree C) - 550(degree C); Voltage,
DS2155 T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2151Q/T&R 制造商:Maxim Integrated Products 功能描述:IC TXRX T1 1-CHIP 5V LP 44-PLCC
DS2151Q/T&R 功能描述:IC TXRX T1 1-CHIP 5V LP 44-PLCC 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:*
DS2151QB 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
DS2151QB/T&R 制造商:Maxim Integrated Products 功能描述:T1 SINGLE CHIP XCVR REV B T&R - Tape and Reel
DS2151QB/T&R+ 制造商:Maxim Integrated Products 功能描述:FRAMER DS1/E1/ISDN-PRI/T1 5V 44PLCC - Tape and Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*