UNGA Holdings recently announced that itsQualcomm launched a Bluetooth headset solution based on Qualcomm’s QCC5144 aptX Voice chip.
Figure 1-display board diagram of the Bluetooth headset solution launched by Da Lian Da Quan Ding based on Qualcomm products
Nowadays, consumers’ demand for mobile calls is increasing, which makes people’s requirements for sound quality gradually increase, so the ultra-wideband voice codec came into being. By applying this technology to mobile devices, the quality of mobile calls can be significantly improved, allowing more consumers to enjoy high-quality voice calls on mobile terminals. However, when consumers use accessories that support the Bluetooth hands-free specification to make and receive voice calls, they cannot experience the same level of high-definition voice. The bluetooth headset solution based on the Qualcomm QCC5144 chip launched by Dalian Daquan Ding can effectively solve the above problems and provide consumers with excellent voice call effects.
Figure 2-The physical diagram of the Bluetooth headset solution launched by Dalian Daquan Ding based on Qualcomm products
QCC5144 is a high-end chip designed for Bluetooth audio devices. It uses Qualcomm aptX Voice audio technology to provide high-fidelity voice call quality for Bluetooth wireless connection technology. Compared with the narrowband and wideband codecs used in the current Bluetooth hands-free specifications, aptX Voice can provide users with a better call experience by improving the overall voice quality, thereby reducing listeners’ fatigue. This is particularly useful for those in noisy environments. It is very important for users who still need to maintain high-quality voice calls.
Figure 3-Block diagram of the Bluetooth headset solution based on Qualcomm products launched by Da Lian Da Quan Ding
In addition, aptX Voice supports 32kHz sampled audio with a 16kHz smooth frequency response, which can more easily recognize voices, distinguish easily confusing voices, and understand the semantics of accented speakers, thereby enhancing users’ semantic understanding, even in other languages. Excellent speech comprehension can be achieved even in environments with impaired sound quality.
Core technical advantages:
● Support Bluetooth 5.2 specification, more stable connection, lower power consumption;
● Support Qualcomm’s new generation of TWS technology: Qualcomm TrueWireless Mirroring technology;
● Support Qualcomm APTX Adaptive, APTX HD for A2DP;
● Support APTX Voice for HFP;
● Integrated Qualcomm ANC noise reduction function, but also supports AANC noise reduction effect is better;
● Support Flash of QSPI interface, freely expand storage space.
Scheme specifications:
● 90-ball 5.6 mm x 5.9 mm x 1.0 mm, 0.5 mm pitch VFBGA package;
● 32‑bit Kalimba audio DSP;
● Support BT5.2 and 2Mbps BLE;
● Support UART, I2C/SPI, USB 2.0 interface;
● CPU Max Speed 80MHz 32bit, DSP Max Frequency: 2x120MHz;
● Supports up to 96KHz sampling rate ADC and up to 384KHz sampling rate DAC.