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MAX3509
Upstream CATV Amplifier

Cable Upstream Amplifier Provides 66dBmV Output Level from 5MHz to 65MHz


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Status
All versions are being discontinued and are subject to Last Time Buy, after which new orders can not be placed.

Data Sheet
FULL DATA SHEET (PDF, 220kB)
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Description
The MAX3509 is a programmable power amplifier for use in CATV upstream applications. The device outputs up to 66dBmV QPSK through a 1:1 transformer. It features variable gain controlled by a 3-wire digital serial bus. Gain control is available in 1dB steps. The device operates over a 5MHz to 65MHz frequency range.

The MAX3509 offers a transmit-disable mode, which places the device in a high-isolation state for use between bursts in TDMA systems. In this mode, all analog functions are shut down, minimizing output noise and power consumption. When entering and leaving transmit-disable mode, transients are kept to 25mV nominal at full gain. In addition, supply current is reduced to 7.8mA.

An additional power-down mode is available. Shutdown mode disables all circuitry and reduces current consumption to less than 1µA.

The MAX3509 is available in a 20-pin TSSOP-EP package for the extended-industrial temperature range(-40°C to +85°C).

An evaluation kit is available:  MAX3509EVKIT  

NOTE: This product requires use of the following:

  • MAX3509 PC-Control Software

    Key Features   Applications/Uses
    • Ultra-Low Power-Up/Down Transients, 25mV (typ) at 66dBmV Output
    • Single-Supply Operation
    • Output Level Ranges from <12dBmV to 67dBmV (QPSK)
    • Gain Programmable in 1dB Steps
    • Low Transmit Output Noise Floor: -41dBmV (160kHz BW)
    • Low Transmit-Disable Output Noise: -70dBmV
    • Shutdown Mode

    		 
  		• Cable Modems
  		• CATV Infrastructure
  		• CATV Status Monitors
  		• OPENCATV Set-Top Boxes
  		• Telephony-Over-Cable

    Diagram
    MAX3509: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 780: CATV Upstream Amplifier Selection Guide - MAX3509
  		• Application Note 808: CATV dBm, dBmV, and dBµV Conversions - MAX3509
  		• Application Note 812: REP031: MAX3509 Upstream Amplifier Drives +68dBmV DOCSIS Cable Telephony - MAX3509
  		• Application Note 972: CATV Minimum Loss Pad for 75Ω Measurements - MAX3509
  		• Application Note 2866: Converting S-Parameters from 50Ω to 75Ω Impedance - MAX3509

    Evaluation Kits
  		• MAX3509EVKIT

    Design Guides
  		• Wireless (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
  		• MAX3509 PC-Control Software

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-4 of 4

    MAX3509 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3509EUP    
    		Last Time Buy TSSOP-EP;20 pin;43 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0114 (PDF)
    Use pkgcode/variation: U20E-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3509EUP-T    
    		Last Time Buy TSSOP-EP;20 pin;43 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0114 (PDF)
    Use pkgcode/variation: U20E-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3509EUP+  
    		Last Time Buy TSSOP-EP;20 pin;43 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0114 (PDF)
    Use pkgcode/variation: U20E+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3509EUP+T    
    		Last Time Buy

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    Notes and Comments
  		• MAX3509 PC-Control Software

    Didn't Find What You Need?
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    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

    		 Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-1700; Rev 1; 2005-07-29
    This page last modified: 2007-06-05


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