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MAX3877 PDF预览

MAX3877

更新时间: 2024-01-22 20:52:39
品牌 Logo 应用领域
美信 - MAXIM 时钟
页数 文件大小 规格书
16页 551K
描述
2.5Gbps, +3.3V Clock and Data Retiming ICs with Vertical Threshold Adjust

MAX3877 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Obsolete零件包装代码:QFP
包装说明:TFQFP,针数:32
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.81Is Samacsys:N
JESD-30 代码:S-PQFP-G32JESD-609代码:e3
长度:5 mm湿度敏感等级:1
功能数量:1端子数量:32
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:TFQFP
封装形状:SQUARE封装形式:FLATPACK, THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.2 mm标称供电电压:3.3 V
表面贴装:YES技术:BIPOLAR
电信集成电路类型:ATM/SONET/SDH CLOCK RECOVERY CIRCUIT温度等级:INDUSTRIAL
端子面层:TIN端子形式:GULL WING
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:5 mm
Base Number Matches:1

MAX3877 数据手册

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19-2062; Rev 0; 5/01  
2.5Gbps, +3.3V Clock and Data Retiming ICs  
with Vertical Threshold Adjust  
General Description  
Features  
The MAX3877/MAX3878 are compact, low-power clock  
recovery and data retiming ICs for 2.488Gbps SONET/  
SDH applications. The fully integrated phase-locked  
loop (PLL) recovers a synchronous clock signal from  
the serial NRZ data input, which is retimed by the  
recovered clock. An additional 2.488Gbps serial input  
is available for system loopback diagnostic testing, or  
this input can be connected to a 155MHz reference  
clock to maintain a valid clock output in the absence of  
data transitions. The MAX3877/MAX3878 provide verti-  
cal threshold and phase-adjust control to optimize sys-  
tem BER in DWDM applications.  
o Exceeds ANSI, ITU, and Bellcore SONET/SDH  
Specifications  
o Adjustable Input Threshold (±±180mV  
o ±80mp-p to ±.2mp-p Differential Input Range  
o 5480W Power Dissipation (at +3.3mV  
o Fully Integrated Clock Recovery and Data  
Reti0ing  
o Optional Holdover Capability (Using External  
Reference ClockV  
o 8.883UI  
Clock Jitter Generation  
RMS  
These devices provide both loss-of-lock (LOL) and  
loss-of-signal (LOS) monitors. Differential CML outputs  
are provided for both clock and data signals on the  
MAX3877, and differential PECL outputs are provided  
for clock and data signals on the MAX3878.  
o Tolerates >2888 Consecutive Identical Digits  
o Additional 2.411Gbps Input for Diagnostic  
Loopback Testing  
o Differential PECL or CML Data and Clock Outputs  
o Loss-of-Signal Indicator  
The MAX3877/MAX3878 are designed for both section-  
regenerator and terminal-receiver applications in OC-  
48/STM-16 transmission systems. Their jitter performance  
exceeds all of the SONET/SDH specifications. These  
devices operate from a single +3.0V to +3.6V supply over  
a -40°C to +85°C temperature range. Typical power con-  
sumption is only 540mW with a +3.3V supply (MAX3878).  
They are available in a 32-pin TQFP-EP package with an  
exposed pad, as well as in die form.  
o Loss-of-Lock Indicator  
Ordering Information  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
32 TQFP-EP*  
DICE**  
MAX3177EHJ  
MAX3877E/D***  
MAX3171EHJ  
MAX3878E/D***  
* Exposed pad  
32 TQFP-EP*  
DICE**  
Applications  
Long Haul and Metro Systems with  
Optical Amplification  
** Dice are designed to operate over this range, but are tested  
and guaranteed at T = +25°C only. contact factory for avail-  
A
DWDM Transmission Systems  
SONET/SDH Receivers and Regenerators  
Add/Drop Multiplexers  
ability.  
*** Future product—contact factory for availability.  
Pin Configuration  
Digital Cross-Connects  
TOP VIEW  
SONET/SDH Test Equipment  
32 31 30 29 28 27 26 25  
GND  
1
2
3
4
5
6
7
8
24 V  
CC  
THADJ  
23 SDO+  
22 SDO-  
V
CC  
SDI-  
SDI+  
21  
20  
V
CC  
V
CC  
MAX3877  
MAX3878  
V
19 SCLKO+  
18 SCLKO-  
CC  
SIS  
LREF  
17 V  
CC  
9
10 11 12 13 14 15 16  
Typical Operating Circuit appears at end of data sheet.  
TQFP  
________________________________________________________________ Maxim Integrated Products  
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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