Dissection of a Freecom Musicpal Internet Radio

By Donar Alofs, professional Gadgeteer

3 november 2007

Whenever I get a new gadgets I got to see the inside, I cannot help it.

I recently got a Freecom Musicpal Internet radio, and guess what; I had to check the inside to see what hacks I could perform on the hardware. I made some quick pictures of this dissection so you don’t need to try this at home. I also identified most chips in this device.

More info on the Freecom Musicpal product:

http://www.freecom.com/ecproduct_detail.asp?ID=3593

http://www.freecom.com/objects/00011377.pdf

Here the pictures:

Conrad.nl 32 89 95 -89 from Visatron could be a nice replacement to upgrade the internal audio,

but external speakers is better.

Almost everything for the USB connection seems to be there, except the connector.

PCB maker http://www.plotech.com.tw/

88W8618-bbs1

http://www.marvell.com/products/voip/Highly_Integrated_Single_Chip_VOIP/release/531/

SAMSUNG K4S281632I MEMORY CHIPS

http://www.digchip.com/datasheets/new_parts/200702/1105796.php

Wolfson WM8750BG sound chip (76AD6HF)

http://www.wolfsonmicro.com/products/WM8750

http://www.wolfsonmicro.com/uploads/documents/en/WM8750BL.pdf

(spdif output perhaps possible by using a WM8804)

http://www.wolfsonmicro.com/products/WM8804/)

ATMEL  ATTiny2313 - 20MHz SMD Microcontroller with 2 kBytes FLASH Program Memory

http://www.atmel.com/dyn/products/product_card.asp?family_id=607&family_name=AVR+8%2DBit+RISC+&part_id=3229

Also check the IR receiver (there is no remote with the device, but it seems there must exist one somewhere)

GigaAnt Rufa 2.4Ghz SMD Antenna

It is easy to connect a bigger and better wifi antenna on the antenna connector.

http://www.telegesis.com/pdf/Zigbee/Rufa.pdf

Flash memory  device: SST 39vf6401B 1x16x4meg

http://www.sst.com/products.xhtml/parallel_flash/39/x16/SST39VF6401B

Ethernet controller: Marvel 88E3015

http://www.marvell.com/products/transceivers/ethernet/88E3015_3018_Datasheet.pdf

* Marvell MVPG16 (difficult to identify) MG16R 00A2R

  The MVPG16 is an integrated DC-DC synchronous step-down switching regulator. Input voltage ranges from 3.0V-5.5V. Output voltage ranges from 0.72V-3.63V and is user-programmable via a single external resistor.

http://www.marvell.com/products/power/dspswitcher/index.jsp