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Product Detailed Parameters
- Description：IC CODEC STEREO 6-DAC 20B 48LQFP
- Series：SoundMAX®
- Mfr：Analog Devices Inc.
- Package：Bulk
- Type：Audio Codec '97
- Data Interface：Serial
- Resolution (Bits)：16, 20 b
- Sigma Delta：No
- S/N Ratio, ADCs / DACs (db) Typ：-
- Dynamic Range, ADCs / DACs (db) Typ：82 / 90
- Voltage - Supply, Analog：4.75V ~ 5.25V
- Voltage - Supply, Digital：3.15V ~ 3.45V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：48-LQFP
- Supplier Device Package：48-LQFP (7x7)
- Grade：-
- Qualification：-
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Overview
The AD1980JST-REEL is an AC '97 2.3 compatible SoundMAX codec in a 48-lead LQFP package, operating from 0°C to 70°C. It features six DAC channels for 5.1 surround sound and 20-bit PCM DACs with greater than 90 dB dynamic range. The device includes an integrated stereo headphone amplifier, variable rate audio up to 96 kHz, and S/PDIF output. Analog inputs include line-level mono phone, high-quality CD, selectable MIC with preamp, and AUX/Line-In stereo inputs. Power management modes reduce consumption significantly.
Feature Summary
- Supports 5.1 surround sound via six dedicated DAC channels
- Integrates parametric equalizer and stereo microphone preamp support
- Includes built-in PLL for system clocking and jack sense topology switching
- Provides software-controlled VREF_OUT for flexible microphone biasing
Applications
- AC '97 compliant desktop motherboard audio subsystems
- 5.1 channel multimedia PC sound cards
- Recordable DVD player audio interfaces
- Consumer electronics requiring integrated stereo headphone amplification
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Ensure the component matches the required AC '97 interface specifications and analog supply voltage requirements before integration into the design.
Selection Notes
Select this component when a complete AC '97 codec solution with integrated headphone drive and 5.1 surround capability is required. Consider the 48-lead LQFP footprint and thermal resistance characteristics during PCB layout planning to ensure adequate heat dissipation within the specified operating temperature range.
Part Context
This part belongs to the Analog Devices AD1980 series of AC '97 codecs. It is designed to replace older discrete audio processing solutions by integrating ADCs, DACs, mixers, and control logic into a single chip, simplifying the audio architecture for personal computers and multimedia devices.
Replacement Considerations
Check for direct pin-compatible upgrades or newer revisions within the AD1980 family. Verify that any substitute maintains AC '97 2.3 compatibility and supports the same 20-bit DAC resolution and 5.1 channel configuration.
