User Manaul REVISED
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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)
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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.
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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 2.0 micro m)
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Pin Assignment
Name Pin function Description
GND Ground The exposed die attach pad must be connected to a solid
ground plane underneath the chip
VCC Power 2.0-3.6V analog power supply connection
VBAT Analog input Battery voltage supervisor (threshold level programmable by
external resistor to positive battery terminal)
SCL
GIO10 Digital I/O1 I2C master clock line. Must be connected to external pull-up
General-purpose digital I/O pin 10
SDA
GIO11 Digital I/O1 I2C master clock line. Must be connected to external pull-up
General-purpose digital I/O pin 11
GIO12 Digital I/O1 General-purpose digital I/O pin 12
GIO13 Digital I/O1 General-purpose digital I/O pin 13
PAEN Digital I/O2 Control external PA
EN Digital I/O2 Control external LNA
XANTN
USBN Digital I/O1 CC85x0: DO NOT CONNECT (Future FW: Controlling
external antenna switch) CC85x1: USB D- data line
XANTP
USBP Digital I/O1 CC85x0: DO NOT CONNECT (Future FW: Controlling
external antenna switch) CC85x1: USB D+ data line
CSN Digital Input
(pull-up) Serial SPI configuration interface, active low chip select
SCLK Digital I/O1 Serial SPI configuration interface, clock input/output
MOSI Digital I/O1 Serial SPI configuration interface, master data output, slave
data input
MISO Digital I/O1 Serial SPI configuration interface, master data input, slave
data output
GIO1 Digital I/O1 General-purpose digital I/O pin 1
Configurable with PurePath™ Wireless Configurator
GIO2 Digital I/O1 General-purpose digital I/O pin 2
GIO3 Digital I/O2 General-purpose digital I/O pin 3
Configurable with PurePath™ Wireless Configurator
RSTN Digital Input
(pull-up) Active-low device reset
MCLK
GIO4 Digital I/O1 Master clock output for external audio devices
General-purpose digital I/O pin 4
BCLK
GIO5 Digital I/O1 I2S/DSP audio interface bit clock (in/out)
General-purpose digital I/O pin 5
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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
1 Digital I/O pad with 4 mA source/sink capability.
2 Digital I/O pad with 20 mA source/sink capability.
6. Regulatory Notices:
Federal Communication Commission Interference Statement:
This device complies with part 15 of the FCC rules. Operation is subject to the following
two conditions
(1) This device may not cause harmful interference and
(2) This device must accept any interference received, including interference that may
cause undesired operation
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation.This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: To assure continued compliance, any changes or modifications not expressly
approved by the party responsible for compliance could void the user's authority to operate
this equipment. (Example - use only shielded interface cables when connecting to computer
or peripheral devices).
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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.”
End Product Labeling
This transmitter module is authorized only for use in devices where the antenna may be
installed such that 20 centimeter may be maintained between the antenna and users. The
final end product must be labeled in visible area with the following: “Contains FCC ID:
SH6MD85XXP1”
This device is intended only for OEM integrators under the following
conditions:
The MD85XXP1 may transmit simultaneously with other collocated radio transmitters within a
host device, provided the following conditions are met:
1. Each collocated radio transmitter has been certified by FCC for mobile application.
2. At least 20 cm separation distance between the antennas of the collocated transmitters and the
user’s body must be maintained at all times.
As long as 2 conditions above are met, further transmitter test will not be required. However, the
OEM integrator is still responsible for testing their end-product for any additional compliance
requirements required with this module installed.
IMPORTANT NOTE: In the event that these conditions cannot be met (for example
co-location with another transmitter), then the FCC authorization is no longer considered
valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM
integrator will be responsible for reevaluating the end product (including the transmitter) and
obtaining a separate FCC authorization. As long as a condition above is met, further
transmitter test will not be required. However, the OEM integrator is still responsible for
testing their end product for any additional compliance requirements required with this
module installed (for example, digital device emissions, PC peripheral requirements, etc.)
Manual Information to the End user
The OEM integrator has to be aware not to provide information to the end user
regarding how to install or remove this RF module in the user’s manual of the end product
which integrates this module.
The end user manual shall include all required regulatory information/warning as show in
this manual.
Antenna Restriction
The antenna is designed as permanent attached and no consideration of replacement.