Key facts
- Brand
- Maxim
- Model
- 622MBPS
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2012-05-08
Start here
Maxim MAX3681 3.3V 622Mbps SDH/SONET 1:4 Deserializer Datasheet
The MAX3681 converts 622 Mbps serial data to a 4‑bit‑wide, 155 Mbps parallel output for ATM and SDH/SONET applications. It operates from a single +3.3 V supply, accepts PECL clock and data inputs, and provides LVDS clock and data outputs. An LVDS synchronization input enables data realignment and reframing.
The device is offered in a 24‑pin SSOP package that meets an extended‑industrial temperature range of –40 °C to +85 °C. Detailed electrical characteristics, pin descriptions, and layout recommendations are provided for high‑speed circuit design. This manual is written in Chinese.
Maxim 622MBPS specifications
| Supply Current | 38 mA |
|---|---|
| Bias Current Range | 1 mA – 80 mA |
| Modulation Current Range | 5 mA – 75 mA |
| Rise/Fall Time | <200 ps |
| Supply Voltage Operation | Single +3.3 V or +5.0 V |
| Enable Control Timing | 250 ns typical enable time |
| APC Failure Monitor | FAIL pin goes low on APC loop failure |
All Maxim 622MBPS documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many pins does the MAX3681 package have?
It is supplied in a 24‑pin SSOP package.
From: Maxim MAX3681 3.3V 622Mbps SDH/SONET 1:4 Deserializer Datasheet
What is the purpose of the SYNC input?
The SYNC input is used for data realignment and reframing; pulsing it high for at least two SCLK cycles shifts the data alignment by one bit.
From: Maxim MAX3681 3.3V 622Mbps SDH/SONET 1:4 Deserializer Datasheet
What is the typical supply current at +3.3 V?
The typical supply current is 38 mA.
How can the laser driver be disabled?
Pull the ENABLE pin low; both bias and modulation currents are turned off.