BU94603_EVK ROHM Semiconductor, BU94603_EVK Datasheet - Page 3

• Manufacturer Part Number: BU94603_EVK
• Description: Audio IC Development Tools MP3/WMA/AAC Media Decoder Eval Kit
• Manufacturer: ROHM Semiconductor
• Type: Audio Decodersr

Specifications of BU94603_EVK

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: BU94601KV, BU94603KV, BU94604BKV
• Operating Supply Voltage: 3.3 V
• Description/function: Evaluation Kit
• Interface Type: I2C, USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Current: 65 mA
• For Use With: BU94601KV, BU94603KV, BU94604BKV

USB/SD Host Audio Media Decoder Evaluation Board Manual
BU94603
25 February, 2013 – Revision A1
Outline
BU94603 is an AAC/WMA/MP3 decoder IC with built-in USB host Interface, SD memory card interface,
audio DAC and system control functions. Using a pushbutton or I2C interface command, the IC reads an
audio file written to a memory device within the onboard USB Interface or SD memory card. BU9458KV
supports a “STAND ALONE MODE,” which utilizes commands entered from the pushbutton matrix
(hereinafter referred to as MODE1), a “AUTO SLAVE MODE,” which is utilizes commands entered from a
master microcomputer via the built-in I2C interface (hereinafter referred to as MODE2), and a “MANUAL
SLAVE MODE,” which can send the memory device information to the master microcomputer via the I2C
interface and completely control sequences (such as a play sequence) by the master microcomputer
(hereinafter referred to as MODE3). BU9458KV also supports fast forward playing and fast backward
playing with music. BU9458KV can outputs folder names, file names, ID3TAG (V1.0, V1.1 V2.2 V2.3 and
V2.4) information and WMA-TAG information and AAC-TAG (iTunes Meta-data) information via the I2C
interface. This function is enabled only in MODE 2 and MODE 3. BU9458KV supports audio line output,
audio serial three-line (I2S) output and digital audio interface (SPDIF) output.
Hardware
components required to use the device properly.
controlled environment (used for device operation in modes 2 and 3)
being supplied with a 3.3V source (regulator).
Software*
*These software modules have been tested and verified on a 32bit and 64bit Windows 7 operating
system
BU94603 Evaluation Board: This board contains the BU94603 IC as well as the external
USB-to-I2C Cypress Controller Board: This board connects to the PC to emulate an I2C
Power Adapter: This evaluation board requires a 5V power supply; however, the chip is actually
“UHAP.exe”: This program is a standalone application (no install required) that emulates a
master I2C controller and demonstrates modes 2 and 3 of the BU94603. Requires Microsoft
framework 2.0
For ROHM software download, please contact your evaluation board distributor.
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