MAX3676
622Mbps, 3.3V Clock-Recovery and Data-Retiming IC with Limiting Amplifier
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High-Performance, Low-Power 622Mbps CDR
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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
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The MAX3676 is a complete clock-recovery and data-retiming IC incorporating a limiting amplifier. It is intended 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 transmission 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 analog levels. The analog inputs access the limiting amplifier stage, which provides both a received-signal-strength indicator (RSSI) and a programmable-threshold loss-of-power (LOP) monitor. Selecting the PECL amplifier disables 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
- Add/Drop Multiplexers
- ATM Switches
- Digital Cross-Connects
- SDH/SONET Access Nodes
- SDH/SONET Receivers and Regenerators
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MAX3676
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Documentation
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
|---|---|---|---|---|
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Optical Transimpedance Amplifiers1 |
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NOT RECOMMENDED FOR NEW DESIGNS |
622Mbps, Ultra-Low-Power, 3.3V Transimpedance Preamplifier for SDH/SONET |
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Product2 |
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+3.3V, 622Mbps, SDH/SONET 1:8 Deserializer with TTL Outputs |
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+3.3V, 622Mbps, SDH/SONET 1:4 Deserializer with LVDS Outputs |
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Evaluation Kits 2
MAX3675EVKIT
Evaluation Kit for the MAX3675, MAX3676
Product Detail
The MAX3675/MAX3676 evaluation kits (EV kits) simplify evaluation of the MAX3675/MAX3676 622Mbps clock-recovery and data-retiming IC with limiting amplifier. The EV kits enable testing of all MAX3675/MAX3676 functions. They provide selectable analog or digital data inputs, as well as differential PECL-compatible data and clock outputs.
The differential data and clock outputs have 50Ω> attenuators on-board to allow direct connection to a high-speed oscilloscope.
The MAX3675/MAX3676 EV kits come configured for +3.3V operation and consume approximately 120mA.
Applications
- Add/Drop Multiplexers
- ATM Switches
- Digital Cross-Connects
- SDH/SONET Access Nodes
- SDH/SONET Transmission Systems
MAX3676EVKIT
Evaluation Kit for the MAX3675, MAX3676
Product Detail
The MAX3675/MAX3676 evaluation kits (EV kits) simplify evaluation of the MAX3675/MAX3676 622Mbps clock-recovery and data-retiming IC with limiting amplifier. The EV kits enable testing of all MAX3675/MAX3676 functions. They provide selectable analog or digital data inputs, as well as differential PECL-compatible data and clock outputs.
The differential data and clock outputs have 50Ω> attenuators on-board to allow direct connection to a high-speed oscilloscope.
The MAX3675/MAX3676 EV kits come configured for +3.3V operation and consume approximately 120mA.
Applications
- Add/Drop Multiplexers
- ATM Switches
- Digital Cross-Connects
- SDH/SONET Access Nodes
- SDH/SONET Transmission Systems