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Product Detailed Parameters
- Description：IC CODEC STEREO 5V 16BIT 68PLCC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：Stereo Audio
- Data Interface：-
- Resolution (Bits)：16 b
- Sigma Delta：Yes
- S/N Ratio, ADCs / DACs (db) Typ：-
- Dynamic Range, ADCs / DACs (db) Typ：81 / 82
- Voltage - Supply, Analog：4.75V ~ 5.25V
- Voltage - Supply, Digital：4.75V ~ 5.25V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：68-LCC (J-Lead)
- Supplier Device Package：68-PLCC (24.23x24.23)
- Grade：-
- Qualification：-
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Overview
The AD1845JP is a parallel-port 16-bit SoundPort stereo codec manufactured by Analog Devices Inc. It integrates key audio data conversion and control functions into a single integrated circuit, providing a complete computer audio solution for business and multimedia applications. The device supports Microsoft and Windows Sound System compatibility and MPC Level-2+ compliance. It features on-chip capture and playback FIFOs, advanced power-down modes, and programmable gain and attenuation. The codec operates from +5 V supplies and utilizes a byte-wide parallel interface compatible with ISA and EISA buses.
Feature Summary
- Integrates stereo audio data conversion and control functions in a single chip
- Supports full-duplex operation with two DMA channels
- Compatible with Microsoft and Windows Sound Systems
- Features on-chip capture and playback FIFOs
Applications
- Business audio systems
- Multimedia applications
- Computer audio solutions
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 68-Lead PLCC specification. Check for obsolescence status as this part may be discontinued. Ensure environmental compliance documentation matches project requirements before finalizing procurement decisions.
Selection Notes
Select this component for designs requiring a parallel interface to ISA or EISA buses. Verify that the system architecture supports the required byte-wide parallel communication protocol. Consider the 68-Lead PLCC package constraints during PCB layout. Evaluate power consumption profiles against available +5 V supply rails to ensure stable operation within specified thermal limits.
Part Context
The AD1845 belongs to the Analog Devices SoundPort family of stereo codecs. It is designed for high-performance audio processing in personal computers. The device is pin-compatible with related models such as the AD1848, AD1846, CS4248, and CS4231, facilitating potential design upgrades or replacements within compatible system architectures.
Replacement Considerations
Direct substitutes include the AD1845JSTZ. Other pin-compatible options within the same family are the AD1848, AD1846, CS4248, and CS4231. Verify interface compatibility and package dimensions before implementing any alternative components.
