User's Manual

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Manual for MD8520P1 & MD8530P1

1. Description

Raytac’s MD85XXP1 audio module is a cost-effective and low-power solution optimized for

wireless transmission of high-quality digital audio. We use TI’s CC8520/CC8530 IC (Digital I2S

I/O) and CC8521/CC8531 (USB full speed I/O) IC which includes a robust built-in wireless

audio transmission protocol and can control selected external audio devices.

The wireless range is up to 100 meters line of sight with an external PA (TI CC2590).

Utilizing numerous coexistence mechanisms allows MD85XXP1 to avoid interfering with, or

being interfered by other 2.4GHz radio systems. Therefore, MD85XXP1 has excellent anti-WiFi

performance. MD85XXP1 operates autonomously, and can be used with or without an external

MCU. An external host processor can be connected through SPI and control some aspects of

its operation.

Combined with the easy-to-use configuration tool and application reference designs,

MD85XXP1 wireless audio module ensures flexibility, cost-efficiency and a fast time-to-market.

2. Features

 Solution：TI CC8520/CC8530(Digital I2S I/O); TI CC8521/CC8531(USB 1.1 I/O)

 Wireless range up to 100 meters line of sight with an external PA (TI CC2590)

 Excellent Anti-WiFi Performance

 Uncompressed stereo CD audio quality

 Can be used autonomously, or being controlled by an external host MCU

 Seamless connection and control of selected TI audio codecs, DACs/ADCs

 Model No.: MD8520P1/ MD8521P1/ MD8530P1/ MD8531P1

 Frequency Range: 2.4GHz – 2.483GHz

 Solution: TI CC8520/CC8530 (Digital I2S I/O); TI CC8521/CC8531 (USB full speed I/O)

 RF Channel No.: up to 18 channels

 Modulation: 8GFSK (frequency hopping)

 Data Rate: up to 5Mbps

 Distance: up to 100 meters line of sight

 Audio Channel No.: 2 for MD8520/MD8521P1; 3 or 4 for MD8530P1/MD8531P1

 Software or Drivers: 2.0V ~ 3.6V

 Operating Temperature: -40℃ ~ +85℃

 Audio Sample Rate: up to 48kHz / 16bits (Uncompressed)

Summary of content (6 pages)

PAGE 1
Manual for MD8520P1 & MD8530P1 1. Description Raytac’s MD85XXP1 audio module is a cost-effective and low-power solution optimized for wireless transmission of high-quality digital audio. We use TI’s CC8520/CC8530 IC (Digital I2S I/O) and CC8521/CC8531 (USB full speed I/O) IC which includes a robust built-in wireless audio transmission protocol and can control selected external audio devices. The wireless range is up to 100 meters line of sight with an external PA (TI CC2590).
PAGE 2
 Transmitter Output Power: 11dBm  Receiver Sensitivity: -87dBm  Dimension (L x W): 34 x 14.7mm 3. Applications  Wireless speakers.  Home theater rear speakers.  Wireless audio sender for CD / DVD player.  USB and PC wireless audio  TV/Set-top box wireless audio  Music instrument 4. Block Diagram Note: I2C must be connected to external pull-up resister 2.7KΩ . VBAT has internal resister 100KΩ on Module.
PAGE 3
5. Pin Assignment & Definition PCB Material Properties and plating Product Name FR-4 COPPER CLAD LAMINATE / PREPREG SM700,SM730,SM750,SM630,SM560) Manufacturer ShineMore Technology Materials Co. Flammability UL94V-0 Plating Gold ( Thickness 2.
PAGE 4
Pin Assignment Name Pin function GND Ground VCC Power VBAT Analog input SCL GIO10 SDA GIO11 Description The exposed die attach pad must be connected to a solid ground plane underneath the chip 2.0-3.6V analog power supply connection Digital I/O1 Digital I/O1 Battery voltage supervisor (threshold level programmable by external resistor to positive battery terminal) I2C master clock line. Must be connected to external pull-up General-purpose digital I/O pin 10 I2C master clock line.
PAGE 5
1 2 Name Pin function Description WCLK GIO6 Digital I/O1 I2S/DSP audio interface word clock (in/out) General-purpose digital I/O pin 6 AD0 GIO7 Digital I/O1 I2S/DSP audio interface data line 0 (in/out) General-purpose digital I/O pin 7 AD1 GIO8 Digital I/O1 I2S/DSP audio interface data line 1 (in/out) General-purpose digital I/O pin 8 AD2 GIO9 Digital I/O2 I2S/DSP audio interface data line 2 (in/out) Configurable with PurePath™ Wireless Configurator Digital I/O pad with 4 mA source/sink capa
PAGE 6
IMPORTANT NOTE: FCC Radiation Exposure Statement: To comply with FCC RF exposure compliance requirements, the antenna used for this transmitter must be installed to provide a separation distance of at least 20 centimeter from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.