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Maxim > Products > [Audio]  [Automotive] 
MAX9890
Audio Click-Pop Suppressor

Industry's First Integrated Audio Click-and-Pop Suppressor


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 448kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX9890 provides click-and-pop suppression for devices such as CODECs with integrated headphone amplifiers that lack a clickless/popless startup/power-up or shutdown/power-down. The device controls the ramping of the DC bias voltage on the output-coupling capacitors and the application of the audio signal to ensure that no audible transients are present at the headphones. The MAX9890A features a 200ms startup time for use with up to 100µF coupling capacitors. The MAX9890B features a 330ms startup time for use with greater than 100µF coupling capacitors.

The MAX9890 consumes 14µA of supply current and 0.001µA in shutdown, while contributing less than 0.003% THD+N into a 32Ω load. ESD (Human Body Model) protection circuitry on the outputs protect the MAX9890 and devices further up the signal chain from ESD strikes up to ±8kV.

The MAX9890 is available in a miniature (1.5mm x 1.5mm x 0.6mm) 9-bump chip-scale package (UCSP™), as well as an 8-pin TDFN package (3mm x 3mm x 0.8mm), and is specified for operation over the -40°C to +85°C extended temperature range.

An evaluation kit is available:  MAX9890EVKIT  

Key Features   Applications/Uses
  • 36dB Click-Pop Suppression
  • 2.7V to 5.5V Single-Supply Operation
  • Clickless/Popless Startup/Power-Up and Shutdown/Power-Down
  • 0.001µA Low-Power Shutdown Mode
  • THD+N < 0.003% Into 32Ω
  • ±8kV ESD Protected Outputs (Human Body Model)
  • Requires Only One 0.1µF Capacitor to Complete the Circuit
  • Low 14µA Supply Current
  • Tiny Packaging
    • 9-Bump UCSP (1.5mm x 1.5mm x 0.6mm)
    • 8-Pin TDFN (3mm x 3mm x 0.8mm)

 
  		• Cell Phones
  		• High-End Notebook Audio
  		• PDAs
  		• Portable DVD Players
  		• Portable MP3 Players

    Key Specifications:  Click-Pop Suppressors
    Part Number VSUPPLY
    (V)    		 VSUPPLY
    (V)    		 IQ
    (mA)    		 PSRR
    (dB)    		 THD+N
    (%)    		 SHDN Channels Industry Qualified Package/Pins Smallest Available Pckg.
    (mm2)    		 Price
    min max typ min max w/pins See Notes
    MAX9890  2.7 5.5 0.014 100 0.003 Yes 2 Automotive - General
    TDFN-EP/8
    UCSP/8
    		 2 $0.38 @1k
    See All Click-Pop Suppressors (2)

    Diagram
    MAX9890: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  		• Application Note 4449: How to Pick a Click-and-Pop Suppressor - MAX9890

    Evaluation Kits
  		• MAX9890EVKIT

    Design Guides
  		• Audio (PDF)

    Reliability Reports
  		• Reliability Report: MAX9890.pdf
  		• Show FIT data for:

    Software/Models
    none

    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: 1-12 of 12

    MAX9890 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9890AETA+  
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9890BETA+  
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9890AETA-T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9890BETA-T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9890AETA+T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9890BETA+T    
    		Active TDFN-EP;8 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0059 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9890BEBL+    
    		Active UCSP;8 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9890AEBL+    
    		Active UCSP;8 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9890BEBL-T    
    		Active UCSP;8 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9890BEBL+T    
    		Active UCSP;8 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9890AEBL-T    
    		Active UCSP;8 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9890AEBL+T    
    		Active UCSP;8 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Topmark Coding: MAX9890
  		• New Product Press Release 2003-08-11 

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    Document Ref.: 19-2932; Rev 2; 2004-05-26
    This page last modified: 2009-10-08


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