MAX3518
PRODUCTIONDOCSIS 3.0 Upstream Amplifier
Industry's Lowest Power Upstream Amplifier for DOCSIS 3.0 Applications
- Part Models
- 2
- 1ku List Price
- Starting From $1.82
Part Details
- +5V Supply Voltage
- Low Power: 1.25W at 31dB Gain, 64dBmV Output
- Ultra-Low 25mW Dissipation in Transmit-Disable Mode
- 63dB Gain Control Range in 1dB Steps
- -60dBc Harmonic Distortion at 64dBmV Output
- Small 5mm x 5mm Thin QFN Package
- Low Burst On/Off Transient
- 275MHz, 3dB Bandwidth
The MAX3518 is an integrated CATV upstream amplifier IC designed to meet the DOCSIS 3.0 requirements, while dissipating only 1.25W. The amplifier covers a 5MHz to 85MHz input frequency range (275MHz, 3dB bandwidth), and is capable of transmitting four QPSK modulated carriers, each at +58dBmV, simultaneously within this range. Both input and output ports are differential, requiring that an external balun be used at the output port. The gain is controlled in 1dB steps over a 63dB range using a SPI 3-wire interface.
The MAX3518 operates from a single +5V supply. Four power codes are provided to allow maximum supply current to be reduced as determined by distortion requirements. In addition, for each power code, supply current is automatically reduced as gain is reduced while maintaining distortion performance. For DOCSIS 3.0 applications, the MAX3518 draws 300mA at 33dB gain, dropping to 250mA at 31dB gain. The MAX3518 supply current drops to 5mA between bursts to minimize power dissipation in transmit-disable mode. Control logic levels are 3.3V CMOS.
The MAX3518 is available in a 20-pin thin QFN package, and operates over the extended industrial temperature range (-40°C to
Applications
- DOCSIS 3.0 Cable Modems
- Set-Top Boxes
- VOIP Modems
Documentation
Reliability Data 1
Technical Articles 1
Request an NDA
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).
Request an NDAADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX3518ETP+ | 20-LFCSP-5X5X0.75 | ||
| MAX3518ETP+T | 20-LFCSP-5X5X0.75 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 14, 2023 - 2275A WAFER FAB |
||
| MAX3518ETP+ | PRODUCTION | |
| MAX3518ETP+T | PRODUCTION | |
Tools & Simulations
Software Development 1
IBIS Model 1
Evaluation Kits
Evaluation Kit for the MAX3518
Latest Discussions
No discussions on max3518 yet. Have something to say?
Start a Discussion on EngineerZone®