參數(shù)資料
型號(hào)： DS2153Q-A7+T&R
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 37/60頁(yè)
文件大?。?/td> 0K
描述： IC TXRX E1 1-CHIP 5V 44-PLCC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 500
功能： 單芯片收發(fā)器
接口： E1
電路數(shù)： 1
電源電壓： 4.75 V ~ 5.25 V
電流 - 電源： 65mA
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 44-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 44-PLCC（16.59x16.59）
包裝： 帶卷 (TR)
DS2153Q
42 of 60
13.3 Jitter Attenuator
The DS2153Q contains an on-board 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 13-4. 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 13-4 must be
connected to the XTAL1 and XTAL2 pins.
The jitter attenuator divides the clock provided by the 8.192MHz crystal at the XTAL1 and XTAL2 pins
to create an output clock that contains very little jitter. On-board 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
E1 signal. If the incoming jitter exceeds either 120UIP-P (buffer depth is 128 bits) or 28UIP-P (buffer depth
is 32 bits), then the DS2153Q 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 (RIR.5).
Table 13-4. Crystal Selection Guidelines
PARAMETER
SPECIFICATION
Parallel Resonant Frequency
8.192MHz
Mode
Fundamental
Load Capacitance
18pF to 20pF (18.5pF nominal)
Tolerance
±50ppm
Pullability
CL = 10pF, delta frequency = +175ppm to
+250ppm
CL = 45pF, delta frequency = -175ppm to -250ppm
Effective Series Resistance
30
maximum
Crystal Cut
AT
相關(guān)PDF資料
PDF描述
DS2154LNA2+ IC TXRX E1 5V 100-LQFP
DS2154L IC TXRX E1 1CHIP 5V ENH 100-LQFP
DS2155LN IC TXRX T1/E1/J1 1-CHIP 100-LQFP
DS2156LN+ IC TXRX T1/E1/J1 1-CHIP 100-LQFP
DS2172T/T&R IC TESTER BIT ERROR RATE 32-TQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2153QN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Transceiver
DS2153QN-A5 功能描述:IC TXRX E1 1-CHIP 5V IND 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:*
DS2153QN-A7 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
DS2153QN-A7/T&R 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS2153QN-A7/T&R+ 制造商:Maxim Integrated Products 功能描述:FRAMER E1/ISDN-PRI/PCM-30 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(xiě)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

*
*
*