参数资料
型号: MAX3873AETP+T
厂商: Maxim Integrated Products
文件页数: 1/10页
文件大小: 0K
描述: IC RECOV/RETIME 2.5GBPS 20TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 时钟和数据恢复(CDR)
PLL:
主要目的: SONET/SDH
输入: CML
输出: CML
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 是/是
频率 - 最大: 2.67Gbps
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WFQFN 裸露焊盘
供应商设备封装: 20-TQFN-EP(4x4)
包装: 带卷 (TR)
General Description
The MAX3873A is a compact, low-power 2.488Gbps/
2.67Gbps clock-recovery and data-retiming IC for
SDH/SONET applications. The phase-locked loop (PLL)
recovers a synchronous clock signal from the serial NRZ
data input. The input data is then retimed by this recov-
ered clock, providing a clean data output. The MAX3873A
meets all SDH/SONET jitter specifications, does not
require an external reference clock to aid in frequency
acquisition, and provides excellent tolerance to both
deterministic and sinusoidal jitter. The MAX3873A pro-
vides a PLL loss-of-lock (LOL) output to indicate whether
the CDR is in lock. The recovered data and clock outputs
are CML with on-chip 50
Ω back terminations on each line.
The clock output can be powered down if not used.
The MAX3873A is implemented in Maxim’s second-gener-
ation SiGe process and consumes only 260mW at 3.3V
supply (output clock disabled, low output swing). The
device is available in a 4mm x 4mm 20-pin QFN
exposed-pad package and operates from -40°C to +85°C.
Applications
Switch Matrix Backplanes
SDH/SONET Receivers and Regenerators
Add/Drop Multiplexers
Digital Cross-Connects
SDH/SONET Test Equipment
DWDM Transmission Systems
Features
Fully Integrated Clock Recovery and Data
Retiming
Power Dissipation: 260mW with +3.3V Supply
Clock Jitter Generation: 5mUIRMS
Exceeds ANSI, ITU, and Bellcore SDH/SONET
Jitter Specifications
Differential Input Range: 50mVP-P to 1.6VP-P
Single +3.3V Power Supply
PLL Fast Track (FASTRACK) Mode Available
Clock Output Can Be Disabled
Input Data Rate: 2.488Gbps or 2.67Gbps
Selectable Output Amplitude
Tolerates 2000 Consecutive Identical Digits
Loss-of-Lock Indicator
Differential CML Data and Clock Outputs
Operating Temperature Range: -40°C to +85°C
MAX3873A
Low-Power, Compact 2.5Gbps/2.7Gbps
Clock-Recovery and Data-Retiming IC
________________________________________________________________
Maxim Integrated Products
1
19-2577; Rev 2; 5/07
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION
KIT
AVAILABLE
Ordering Information
Typical Application Circuit appears at end of data sheet.
Pin Configuration
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX3873AEGP
-40°C to +85°C
20 QFN
(4mm x 4mm)
G2044-3
MAX3873AETP+
-40°C to +85°C
20 TQFN
(4mm x 4mm)
T2044-3
20
19
18
17
16
GND
FIL+
FIL-
GND
LOL
6
7
8
9
10
V
CC
FASTRACK
VCC_VCO
MODE
SCLKEN
11
12
13
14
15
**NOTE: THE EXPOSED PAD MUST BE
SOLDERED TO THE SUPPLY GROUND.
SCLKO-
SCLKO+
VCC_BUF
SDO-
SDO+
5
4
3
2
1
VCC
SDI-
SDI+
VCC
RATESET
MAX3873A
QFN/TQFN**
TOP VIEW
+
Denotes lead-free package.
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MAX3873EGP-T 功能描述:计时器和支持产品 RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
MAX3873EVKIT 功能描述:计时器和支持产品 Evaluation Kit for the MAX3873 RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
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