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Product Detailed Parameters
- Description：IC DECODER USB HOST AUDIO 64VQFP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：-
- Applications：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Mounting Type：Surface Mount
- Package / Case：64-LQFP
- Supplier Device Package：64-VQFP (10x10)
- Grade：-
- Qualification：-
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Overview
The BU94603KV-E2 is a silicon monolithic integrated circuit designed as an audio decoder LSI. It integrates USB 2.0 Full Speed host interface, SD card interface, and I2C command interface for media control. The device decodes MP3, WMA, and AAC formats with a built-in system controller and regulator. It supports FAT16/32 file systems and provides analog line output or digital audio output via I2S and S/PDIF. Operating conditions range from -40°C to +85°C with a supply voltage of 3.0V to 3.6V. The component is housed in a VQFP64 package measuring 12.00mm x 12.00mm x 1.60mm.
Feature Summary
- Integrated USB host and SD card interfaces for direct media playback
- Supports decoding of MP3, WMA, and AAC audio formats
- Built-in system controller with key matrix and LED drivers
- Provides analog line output and digital audio output options
Applications
- Audio products requiring standalone media playback
- USB memory and SD card based music players
- Embedded audio systems with I2C master control
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current documentation to ensure compatibility with the required packaging format. Confirm that the revision level matches the design specifications. Check for any updates regarding the availability status or recommended replacement components before finalizing procurement plans.
Selection Notes
Select this model when both USB host and SD card interfaces are required alongside multi-format audio decoding capabilities. Ensure the application utilizes a 3.3V power supply within the specified operating range. Verify that the VQFP64 package dimensions fit the target PCB layout constraints and thermal requirements.
Part Context
This component belongs to the BU9460 series of audio decoder LSIs manufactured by ROHM Semiconductor. The series includes variants such as the BU94601KV and BU94604BKV, which differ in supported audio formats and iPod compatibility. The BU94603KV specifically supports AAC, WMA, and MP3 decoding without the protocol conversion features found in the BU94604BKV.
Replacement Considerations
BU94601KV-E2
FAQ
Does the BU94603KV support DRM-protected files?
No, the device does not support DRM (Digital Rights Management) protected files for WMA or AAC formats.
What is the maximum number of playable folders per folder?
The maximum number of playable folders within each folder is 65,534.
Can the device read specified file data from USB memory?
Yes, it is possible to read specified file data from USB memory, but only for files existing in the root folder using 8.3 filename forms.
