AD1981HD:  HD Audio SoundMAX® Codec

The AD1981HD is used to add analog and digital audio capabilities to computer motherboards by connecting directly to the core logic chipset supporting the HD Audio 1.0 specification. By reusing ...More

As of December 2008, Conexant now offers Analog Devices, Inc.’s PC audio codec product line. For more information on this product, including sales representatives, visit the Conexant web site.

AD1981HD:  HD Audio SoundMAX® Codec

Product Description

The AD1981HD is used to add analog and digital audio capabilities to computer motherboards by connecting directly to the core logic chipset supporting the HD Audio 1.0 specification. By reusing existing systems resources, this solution adds flexibility, improves sound quality, reduces power consumption and lowers the system BOM cost by integrating components.

Features

  • Flexible OS support
  • Integrated HD audio controller
  • True stereo microphone capture
  • Improved speaker performance
  • Parametric EQ improved sound on low cost speakers
  • Jack and port re-tasking
  • Peripheral sensing/enumeration
  • EAPD for external amplifier control
  • Analog and digital PC BEEP
  • Drivers for: W2K, WINXP, W2K3, XP-64, W2K3-64; WHQL pre-qualified
  • BOM cost savings, more flexibility and better audio quality

Diagrams

AD1981HD Diagram
Functional Block Diagram for AD1981HD

Specifications

# of ADCs 2
# DAC 2
ADC DNR (dB) 85dB
DAC DNR (dB) 90dB

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Part# # DAC DAC DNR (dB) # of ADCs ADC DNR (dB) Product Description Price* (1000-4999)
AD1819B 2 90 2 87 AC '97 Compliant Serial-Port CODEC $5.77
AD1845 2 74 2 73 Parallel-Port 16-Bit SoundPort Stereo Codec $8.66
AD1881A 2 90 2 87 AC '97 Compliant CODEC $3.93
AD1882 6 95 4 90 HD Audio -
AD1882A 6 95 4 90 HD Audio -
AD1883 4 90 4 85 HD Audio CODEC, 4DACs/4ADCs, exceeds Microsoft Vista Premium performance for notebooks -
AD1884 4 90 4 85 HD Audio $2.38
AD1884A 4 90 4 85 Audio CODEC, 4DACs/4ADCs, exceeds Microsoft Vista Premium performance for notebooks -
AD1885 2 90 2 87 AC '97 Compliant CODEC $3.06
AD1886A 2 90 2 87 AC '97 Compliant CODEC $4.76
AD1888 6 90 2 80 AC '97 Compliant CODEC $2.22
AD1980 6 90 2 82 AC '97 Compliant CODEC -
AD1981B 2 90 2 85 AC '97 Compliant CODEC $2.62
AD1981BL 2 90 2 83 AC '97 Compliant Low Power CODEC $3.08
AD1981HD 2 90 2 85 HD Audio CODEC with SPDIF -
AD1983 2 90 2 85 2 Ch HD Audio Codec Single Chip $2.50
AD1984 4 96 4 90 HD Audio $3.11
AD1984A 4 96 4 90 Audio CODEC, 4DACs/4ADCs, exceeds Microsoft Vista Premium performance for notebooks -
AD1984B 4 96 4 90 HD Audio CODEC, 4DACs/4ADCs, exceeds Microsoft Vista Premium performance $3.15
AD1986 6 90 2 85 AC '97 Compliant CODEC -
AD1986A 6 90 2 85 HD Audio and AC '97 Compliant CODEC $2.44
AD1987 8 95 4 90 HD Audio Codec, 8 DACs/4ADCs, Exceeds Microsoft Vista Premium Performance $2.72
AD1988A 10 95 4 90 HD Audio $2.85
AD1988B 10 101 6 92 HD Audio $3.21
AD1989B 10 101 6 92 HD Audio -

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.