Audio Precision Bluetooth Duo
Module for APx analyzers

Once connected, every audio characteristic can be measured. Key features include 30+ one-click audio measurements (including all standard weighting filters), 1.2M point FFTs, real-time oscilloscope monitoring, custom reports, statistical calculations, and quasi-anechoic acoustic measurements. With 21 measurements in one second, the APx multitone analyzer is ideal for Bluetooth production test.

Audio Precision Bluetooth Duo Module for APx analyzers

 

Bluetooth Specifications and ProfilesAudio Precision - APx Bluetooth Duo Module
Audio Precision’s next-generation Bluetooth® module, the APx Bluetooth Duo™, delivers a wider selection of A2DP codecs, faster pair and connection times, an increased feature set within APx500 measurement software, and improved RF shielding for use in production test environments.

APx Bluetooth Duo incorporates the audio features mandated within the Bluetooth 4.2 core specification and supports the Handsfree Profile (HFP v1.7), Headset Profile (HSP v1.2), Audio-Video Remote Control Profile (AVRCP v1.4) and Advanced Audio Distribution Profile (A2DP v1.3). With dedicated source and sink radios, AP’s Duo module easily switches between the roles of A2DP source and sink (including AAC), HFP/HSP audio gateway and handsfree, and AVRCP target and controller.

A2DP Codecs
The introduction of AP’s Duo module expands the list of A2DP codecs available to Bluetooth-equipped APx Series audio analyzers to AAC, aptX, aptX-HD, aptX-LL and SBC. APx Bluetooth Duo can act as either source or sink for each of the supported A2DP codecs.

Integrated Audio Test
As an APx module, Bluetooth Duo is part of an integrated audio test solution, leveraging the power and flexibility of the APx system. Bluetooth Duo can share analog, digital, chip-level I2S and TDM protocols, PDM or HDMI interface capabilities installed in an APx555, APx52x Series or APx58x Series analyzer. Intuitive and powerful, APx500 measurement software provides access to a long list of Bluetooth settings and parameters, while allowing easy automation of connection, pairing and settings commands in a stepped sequence for production test applications.

“Whether in the home, office or car, wireless audio—both voice and music—is rapidly becoming an integral part of modern life,” said Dave Schmoldt, Audio Precision CEO. “Enhancing the Bluetooth capabilities of our APx analyzers—expanded selection of A2DP codecs, faster pairing time, new measurement features—helps our users maximize the performance of their next-generation wireless audio products.”

 

BLUETOOTH MODULE PERFORMANCE
Bluetooth Core Version
v4.2

Profile Versions
A2DP v1.3
AVRCP v1.4
HFP v1.7
HSP v1.2

A2DP Audio Codecs
SBC
aptX
aptX-LL
aptX-HD
AAC

HFP Audio Codecs
CVSD
mSBC

RF Connection
SMA (two)

RF Input Impedance
50 Ω typical

RF Output Impedance
50 Ω typical

RF Power
Typical maximum +8 dBm

RF Sensitivity
≤ –81 dBm Typical