參數(shù)資料
型號(hào): MAX3676EHJ+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 1/15頁(yè)
文件大?。?/td> 0K
描述: IC CLOCK RECOVERY 32-TQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘和數(shù)據(jù)恢復(fù)(CDR),多路復(fù)用器
PLL:
主要目的: SONET/SDH
輸入: PECL
輸出: PECL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 622.08MHz
電源電壓: 3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-TQFP
供應(yīng)商設(shè)備封裝: 32-TQFP(5x5)
包裝: 帶卷 (TR)
Typical Operating Circuit
General Description
The MAX3676 is a complete clock-recovery and data-
retiming IC incorporating a limiting amplifier. It is intend-
ed for 622Mbps SDH/SONET applications and operates
from a single +3.3V supply.
The MAX3676 is designed for both section-regenerator
and terminal-receiver applications in OC12/STM-4 trans-
mission systems. Its jitter performance exceeds all
SONET/SDH specifications.
The MAX3676 has two differential input amplifiers: one
accepts positive-referenced emitter-coupled logic
(PECL) levels, while the other accepts small-signal ana-
log levels. The analog inputs access the limiting amplifi-
er stage, which provides both a received-signal-strength
indicator (RSSI) and a programmable-threshold loss-of-
power (LOP) monitor. Selecting the PECL amplifier dis-
ables the limiting amplifier, conserving power. A
loss-of-lock (LOL) monitor is also incorporated as part of
the fully integrated phase-locked loop (PLL).
Applications
SDH/SONET Receivers and Regenerators
SDH/SONET Access Nodes
Add/Drop Multiplexers
ATM Switches
Digital Cross-Connects
Features
Single +3.3V or +5.0V Power Supply
Exceeds ITU/Bellcore SDH/SONET Regenerator
Specifications
Low Power: 237mW at +3.3V
Selectable Data Inputs, Differential PECL or
Analog
Received-Signal-Strength Indicator
Loss-of-Power and Loss-of-Lock Monitors
Differential PECL Clock and Data Outputs
No External Reference Clock Required
MAX3676
622Mbps, 3.3V Clock-Recovery and
Data-Retiming IC with Limiting Amplifier
________________________________________________________________
Maxim Integrated Products
1
VCC
ZO = 50
Ω
100
Ω
20k
INREF
FILT
OUT+
CIN
0.01
μF
CIN
0.01
μF
COLC
33nF
CFILT
47nF
+3.3V
220pF
100pF
PHOTO-
DIODE
ADI+
DDI-
DDI+
SDO+
SDO-
0.1
μF
CLOL
0.01
μF
0.01
μF
ADI-
CFILT OLC+ OLC-
R1
R2
GND
RSSI
INV
VTH LOP
INSEL
PHADJ+
PHADJ-
FIL+
CF
2.2
μF
FIL-
OUT-
GND
COMP
IN
ZO = 50
Ω
+3.3V
VCC
SCLKO+
SCLKO-
ZO = 50
Ω
ZO = 50
Ω
+3.3V
82
Ω
82
Ω
130
Ω
130
Ω
ZO = 50
Ω
ZO = 50
Ω
+3.3V
82
Ω
82
Ω
130
Ω
130
Ω
LOL
MAX3676
MAX3664
19-1537; Rev 4; 3/09
Ordering Information
Pin Configuration appears at end of data sheet.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
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.
PART
TEMP RANGE
PIN-PACKAGE
MAX3676EHJ
-40°C to +85°C
32 TQFP
MAX3676EHJ+
-40°C to +85°C
32 TQFP
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