MAX9723
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MAX9723

Stereo DirectDrive® Headphone Amplifier with BassMax, Volume Control, and I²C

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Part Details
Part Models 6
1ku List Price Starting From $0.96
Features
  • 62mW, DirectDrive Headphone Amplifier Eliminates Bulky DC-Blocking Capacitors
  • 1.8V to 3.6V Single-Supply Operation
  • Integrated 32-Level Volume Control
  • High 90dB PSRR at 1kHz
  • Low 0.006% THD+N
  • Industry-Leading Click-and-Pop Suppression
  • ±8kV HBM ESD-Protected Headphone Outputs
  • Short-Circuit and Thermal-Overload Protection
  • Low-Power Shutdown Mode (5µA)
  • Software-Enabled Bass Boost (BassMax)
  • I²C/SMBus-Compatible Interface
  • Available in Space-Saving, Thermally Efficient Packages:
    • 16-Bump UCSP (2mm x 2mm x 0.62mm)
    • 16-Pin Thin QFN (4mm x 4mm x 0.8mm)
Additional Details
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The MAX9723 stereo DirectDrive headphone amplifier with BassMax and volume control is ideal for portable audio applications where space is at a premium and performance is essential. The MAX9723 operates from a single 1.8V to 3.6V power supply and includes features that reduce external component count, system cost, board space, and improves audio reproduction.

The headphone amplifier uses Maxim's DirectDrive architecture that produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors. The headphone amplifiers deliver 62mW into a 16Ω load, feature low 0.006% THD+N, and high 90dB PSRR. The MAX9723 features Maxim's industry-leading click-and-pop suppression.

The BassMax feature boosts the bass response of the amplifier, improving audio reproduction when using inexpensive headphones. The integrated volume control features 32 discrete volume levels, eliminating the need for an external potentiometer. BassMax and the volume control are enabled through the I²C/SMBus™-compatible interface. Shutdown is controlled through either the hardware or software interfaces.

The MAX9723 consumes only 3.7mA of supply current at 1.8V, provides short-circuit and thermal-overload protection, and is fully specified over the extended -40°C to +85°C temperature range. The MAX9723 is available in a tiny (2mm x 2mm x 0.62mm) 16-bump chip-scale package (UCSP™) or 16-pin thin QFN (4mm x 4mm x 0.8mm) package.

Applications

  • Mini Disc Players
  • MP3 Players
  • MP3-Enabled Cellular Phones
  • PDA Audio
  • Portable CD Players
Part Models 6
1ku List Price Starting From $0.96

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX9723CETE+
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MAX9723CETE+T
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MAX9723DEBE+
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MAX9723DEBE+T
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MAX9723DETE+
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MAX9723DETE+T
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Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

MAX9723CETE+

PRODUCTION

MAX9723DETE+

PRODUCTION

MAX9723DETE+T

PRODUCTION

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Product Lifecycle

PCN

Jun 20, 2016

- 1612

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ASSEMBLY

MAX9723CETE+

PRODUCTION

MAX9723DETE+

PRODUCTION

MAX9723DETE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

MAX9723DEVKIT

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

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MAX9723DEVKIT

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

Features and Benefits

  • Single 1.8V to 3.6V Power-Supply Operation
  • 60mW Stereo DirectDrive Headphone Outputs (16Ω, VDD = 3V)
  • System Command Module: USB Interface (CMODUSB+) or Serial Interface (CMOD232+)
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Evaluates the MAX9723A/MAX9723B/MAX9723C (with IC replacement)
  • Fully Assembled and Tested

Product Detail

The MAX9723D evaluation kit (EV kit) is a fully assembled and tested PCB that evaluates the MAX9723 stereo DirectDrive™ headphone amplifier with BassMax, volume control, and I²C. The MAX9723D EV kit operates from a single 1.8V to 3.6V power supply, and is capable of delivering 60mW into a 16Ω load.

The MAX9723D evaluation system (EV system) includes a MAX9723D EV kit, Windows® 98SE/2000/XP-compatible software, and a Maxim system command module. The software's graphical user interface (GUI) allows easy control of the MAX9723D's I²C interface, adjusting settings such as BassMax and volume.

Order the complete EV system (MAX9723DEVCMODU+ or MAX9723DEVCMOD2+) for a comprehensive evaluation of the MAX9723A/MAX9723B/MAX9723C/MAX9723D using a PC. Order the EV kit (MAX9723DEVKIT+) if the CMODUSB+ or CMOD232+ system command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.

The EV kit comes with the MAX9723DETE+ installed. Contact the factory for free samples of the pin-compatible MAX9723A/MAX9723B/MAX9723C to evaluate these parts.

Applications

  • Automotive Multimedia
  • Mini Disc Players
  • MP3 Players
  • MP3-Enabled Cellular Phones
  • PDA Audio
  • Portable CD Players

MAX9723DEVCMOD2

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

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MAX9723DEVCMOD2

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

Features and Benefits

  • Single 1.8V to 3.6V Power-Supply Operation
  • 60mW Stereo DirectDrive Headphone Outputs (16Ω, VDD = 3V)
  • System Command Module: USB Interface (CMODUSB+) or Serial Interface (CMOD232+)
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Evaluates the MAX9723A/MAX9723B/MAX9723C (with IC replacement)
  • Fully Assembled and Tested

Product Detail

The MAX9723D evaluation kit (EV kit) is a fully assembled and tested PCB that evaluates the MAX9723 stereo DirectDrive™ headphone amplifier with BassMax, volume control, and I²C. The MAX9723D EV kit operates from a single 1.8V to 3.6V power supply, and is capable of delivering 60mW into a 16Ω load.

The MAX9723D evaluation system (EV system) includes a MAX9723D EV kit, Windows® 98SE/2000/XP-compatible software, and a Maxim system command module. The software's graphical user interface (GUI) allows easy control of the MAX9723D's I²C interface, adjusting settings such as BassMax and volume.

Order the complete EV system (MAX9723DEVCMODU+ or MAX9723DEVCMOD2+) for a comprehensive evaluation of the MAX9723A/MAX9723B/MAX9723C/MAX9723D using a PC. Order the EV kit (MAX9723DEVKIT+) if the CMODUSB+ or CMOD232+ system command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.

The EV kit comes with the MAX9723DETE+ installed. Contact the factory for free samples of the pin-compatible MAX9723A/MAX9723B/MAX9723C to evaluate these parts.

Applications

  • Automotive Multimedia
  • Mini Disc Players
  • MP3 Players
  • MP3-Enabled Cellular Phones
  • PDA Audio
  • Portable CD Players

MAX9723DEVCMODU

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

zoom

MAX9723DEVCMODU

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D

Features and Benefits

  • Single 1.8V to 3.6V Power-Supply Operation
  • 60mW Stereo DirectDrive Headphone Outputs (16Ω, VDD = 3V)
  • System Command Module: USB Interface (CMODUSB+) or Serial Interface (CMOD232+)
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Evaluates the MAX9723A/MAX9723B/MAX9723C (with IC replacement)
  • Fully Assembled and Tested

Product Detail

The MAX9723D evaluation kit (EV kit) is a fully assembled and tested PCB that evaluates the MAX9723 stereo DirectDrive™ headphone amplifier with BassMax, volume control, and I²C. The MAX9723D EV kit operates from a single 1.8V to 3.6V power supply, and is capable of delivering 60mW into a 16Ω load.

The MAX9723D evaluation system (EV system) includes a MAX9723D EV kit, Windows® 98SE/2000/XP-compatible software, and a Maxim system command module. The software's graphical user interface (GUI) allows easy control of the MAX9723D's I²C interface, adjusting settings such as BassMax and volume.

Order the complete EV system (MAX9723DEVCMODU+ or MAX9723DEVCMOD2+) for a comprehensive evaluation of the MAX9723A/MAX9723B/MAX9723C/MAX9723D using a PC. Order the EV kit (MAX9723DEVKIT+) if the CMODUSB+ or CMOD232+ system command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.

The EV kit comes with the MAX9723DETE+ installed. Contact the factory for free samples of the pin-compatible MAX9723A/MAX9723B/MAX9723C to evaluate these parts.

Applications

  • Automotive Multimedia
  • Mini Disc Players
  • MP3 Players
  • MP3-Enabled Cellular Phones
  • PDA Audio
  • Portable CD Players

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