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主页 > 银河网址 > 智能蓝牙音频SOC >

OTK5283P

发布时间:2021-08-04 09:51:58浏览次数:来源于:未知

1.1   KEY FEATURES
Ø  Bluetooth Radio
o  Bluetooth v5.1 DM (Classic and Low Energy) transceiver
Bluetooth classic supports
- 1M basic rate, EDR 2M, EDR 3M
- Sensitivity is more than -94dBm for EDR 2M
Bluetooth low energy supports
- 1Mbps, 2Mbps, 500kbps, 125kbps
- Advertisement Extension
o  Transmitting power is up to 9dBm
o  Optimization in wireless audio broadcasting and stereo audio streaming
o  Trimming audio clock to synchronize wireless audio streaming
o  Streaming audio from left channel to right channel without any conversion to keep original quality
o  CEVA BT DM 5.0 Baseband

Ø  BT profile, stack and features
o  Latest profiles are supported, including
- SPP 1.2
- RFCOMM 1.2
- A2DP 1.3
- AVRCP 1.6
- GAVDP 1.3
- AVDTP 1.3
- AVCTP 1.4
- HFP 1.7
- PBAP 1.2
o  Proven for years in global market
o  Based on the previous generation SoC profile and stack
o  WCI-2 and WLAN Coexistence are supported

Ø  Processor and DSP
o  Dual-core architecture
o  Tensilica HiFi 3 DSP
- Easy development by C/C++
- On top of that LX7 processor
- Two 32 x 32 MAC
- Four 24 x 24 MAC
- Circular Buffer
- Fully programable
o  Tensilica LX7 processor
- High efficiency and low power 32-bit RISC
- Easily development by C/C++
o  Memory
- Embedded instruction and data cache
- 352KB RAM for instruction and data
- 816KB ROM
- Embedded 16Mb SPI NOR flash

Ø  CODEC
o  SBC CODEC
o  Fast Stream CODEC
o  mSBC CODEC with packet loss concealment for voice processing
o  MP3 CODEC with 384kpbs support
o  DAB and DAB+ decoder
o  AAC multi-channel decoder
o  Support 3rd party CODECs

Ø  Pre and post audio or voice processing
o  Multi-band EQ
o  Multi-band DRC
o  High quality SRC
o  Pitch and speed control
o  FFT for spectrum analysis
o  Microphone arrays and beamforming
o  Microphone noise reduction
o  Acoustics echo cancellation
o  Support 3rd party algorithms

Ø  Audio CODEC
o  HD audio (20Hz-40kHz)
o  Stereo 24bit ADC with 95dB SNR
o  Differential input for ECM mic
o  Sampling rates of 8kHz to 96kHz

Ø  Active noise cancellation (ANC)
o  Hardware Feedforward ANC

Ø  ELL®, Extreme Low Latency Streaming and broadcasting
o  Latency of audio transmission is less than 20ms in one direction or bi direction.

Ø  SCL®, Shared Connection Link.
o  Smartphone host device transmits audio signal to a large of number of devices seamlessly, not just 2 devices.

Ø  Audio PWM
o  4-Channel audio PWM with differential outputs
o  Configurable audio PWM modulation frequency from 384kHz, 768kHz to 2,304kHz
o  Spread spectrum to lower PWM EMI
o  Support 384k/32bit input
o  HD audio (20Hz-40kHz)
o  Directly connects to MOS FETs or power stage to replace power amplifier

Ø  Digital audio interface
o  2 stereo ECM mic inputs in single-ended
o  I2S input and output either master or slaver

Ø  Real Time Clock
o  Dedicated power supply
o  Active current is less than 10uA
o  External 32k crystal or internal RC 32k oscillator
o  Enable system power on or off
o  Wake up system by Alarm, Key, IR and CEC
o  Dual alarm clock

Ø  Peripheral
o  USB 2.0 (high speed, 480 Mb/s) OTG and compatible with USB_C
- Type C or USB headphone with 192k/24bit
- Decoding audio stream from USB stick
o   Hardware IR, UART, SPI, I2C, PWM, Rotary, JTAG and GPIOs
o  12-bit ADC for general purposes

Ø  Software
o  Free RTOS
o  Based on previous SoC SDK
o  Firmware upgrade via USB or OTA

Ø  Package
o  QFN52 (6mm x 6mm)

Ø  Applications
o  Wired or wireless headphones and earbuds
o  Bluetooth speaker
o  Audio system
o  Wireless Karaoke microphone
o  Smart speaker

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