JLAC6955F ac6955头戴立体声蓝牙耳机ic方案开

联系人：邱生 18170208253

杰理AC6955F Features
CPU
32-bit DSP supports hardware Float Point
Unit (FPU)
Up to 240MHz programmable processor
64Vectored interrupts
4 Levels interrupt priority
DSP Audio Processing
SBC, AAC Audio decodes supported for BT
audio
mSBC voice codecs supported for BT phone
Supports MP2, MP3, WMA, APE, FLAC,
AAC, MP4, M4A, WAV, AIF, AIFC audio
decoding
Packet Loss Concealment (PLC) for voice
processing
Acoustic echo cancellation/suppression
(AEC,AES)
Single/Dual MIC Environmental Noise
Cancellation (ENC)
Multi-band DRC limiter
30-band EQ configuration for voice Effects
Audio Codec
Two channels 16-bit DAC, SNR >= 95dB
Three channels 16-bit ADC , SNR >= 90dB
Sampling rates of
8KHz/11.025KHz/16KHz/22.05KHz/24KHz/
32KHz/44.1KHz/48KHz are supported
One analog MIC amplifier, build-in MIC bias
generator
Supports two PDM digital MIC inputs
three channels Stereo analog MUX
Supports cap-less, single-ended, and
differential mode at the DAC path
Supports 16ohm and 32ohm Speaker loading
Bluetooth
Compliant with Bluetooth
V5.1+BR+EDR+BLE specification
Meet class1 class2 and class3 transmitting
power requirement
Support GFSK and π/4 DQPSK all paket types
Provides +6dbm transmitting power
receiver with -90dBm sensitivity
Fast AGC for enhanced dynamic range
Supports
a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\g
att\rfcomm\sdp\l2cap profile
Peripherals
One full speed USB 2.0 OTG controller
Two PCM/IIS for external digital Audio code,
supports host and device mode
Four multi-function 16-bit timers, support
capture and PWM mode
Three 16-bit PWM generator for motor
driving
Three full-duplex basic UART, UART0 and
UART1 supports DMA mode
Three SPI interface supports host and device
mode
One SD Card Host controller
One hardware IIC interface supports host and
device mode
Built-in Cap Sense Key controller
10-bit ADC for analog sampling
External wake up/interrupt on all GPIOs
PMU
Low voltage LDO for internal digital and
analog circuit supply
3uA current consumption in the soft-off mode
Built-in LDO for the core, I/O, Bluetooth and
flash
VBAT is 2.2V to 5.5V VDDIO is 2.2V to 3.6V

Packages
QSOP24
Temperature
Operating temperature: -20℃ to +70℃
Storage temperature: -65℃ to +150℃
Applications
Bluetooth Stereo headset