DESCRIPTION
The CM2025 is a highly integrated single-chip
Bluetooth audio solution targeting Bluetooth gaming
headsets and wireless microphone markets with high
performance and low power consumption.
CM2025 adopts ARM Cortex-M4F core and a rich set
of interfaces such as USB, SPI, UART, TWI, PWM, I2S
TX/RX, capacitive touch key to accomplish various
Bluetooth audio applications.
CM2025 integrates BT v5.3 dual mode to BT classic
and LE audio connection, which is fully backward
compatible to v5.0/4.2/2.1 Bluetooth specifications.
Both links in BR/EDR and LE can be active
simultaneously for bidirectional HD voice transmission.
CM2025 owns a power management unit (PMU) to
establish a stable power source and linear battery
charger with maximum 300mA charging current that
allows CM2025 to recharge the battery over USB.
Besides, with implementing Cmedia Xear™ Sound
Technology- Surround HP and AI noise cancellation, to
provide users the best auditory experience at near end,
and transmit good voice quality to far end by filtering
out the annoying sounds around, like keyboard typing,
mouse clicking, fan sound, fan blades running, etc.

FEATURES
 ARM Cortex-M4F with Floating Point Unit (FPU) 96MHz
 Internal 16M bits SPI serial Flash
 Support Bluetooth v5.3 and backward compatible
 Support BT dual-mode and link for BR/EDR and LE audio
 Bluetooth transmitting output max. power: 13dBm
 Bluetooth receiving sensitivity: -96dBm@GFSK,
-94dBm@π/4 DQPSK, -88dBm@8DPSK modulation
 Support SBC/AAC/LC3 BT audio transmission format
 Support bidirectional voice transmission, sampling rate
32KHz/48KHz for up/down stream
 Playback path latency is 25ms in LE audio mode
 Support USB 2.0 Full Speed with UAC 1.0
 Audio data supports up to 8~192K/24-bits sampling rate
 Build in 24-bit DAC/ADC with 8K~96K sampling rate
 Build in stereo ADC, SNR 102dB, THD+N<-90dB
 Build in stereo DAC, SNR 120dB, THD+N<-100dB
 Build in stereo 22mW PA for headphone
 Fully configurable PEQ, up to 20 segments
 Support I2S TX and RX, sampling rate up to 192KHz
 Support Serial Interface: SPI, UART*2, TWI
 Support 16 GPIO, 3 wake-up IO, 4 PWM for LED controller
 Support Li-Ion battery and 5V power supply
 Operating voltage: I/O 1.8~3.3V, Core 1.1V
 Integrated battery charger up to 300mA with fast charge
 Ultra-low-power: 3uA @ suspend; 10mA @active