Ac6969d is a Bluetooth audio chip developed by Zhuhai Jieli. The main application fields of the chip are: Bluetooth speakers. This paper introduces the function, pin diagram and PDF specification of Jerry ac6969d.
1、 Ac6969d application field
Bluetooth speaker
2、 Ac6969d function
1. CPU processor
32-bit DSP supports hardware floating point
Unit (FPU)
Programmable processor up to 160MHz
64 product interrupts
Level 4 interrupt priority
2. DSP audio processing
BT supports SBC and aac audio decoding. The BT phone supports MSBC voice codec
Support packet loss concealment function (PLC) in MP2, MP3, wma, ape, FLAC, AAC, MP4, m4a, WAV, AIF and AIFC audio decoding speech
3. Handling
Acoustic echo cancellation / suppression (AEC, AES)
Single / dual mic ambient noise cancellation (ENC)
Multiband DRC limiter
Voice effect of EQ configuration of 10 bands
4. Audio codec
1 channel 16 bit DAC, signal-to-noise ratio > = 95dB
1 channel 16 bit ADC, signal-to-noise ratio > = 90dB
5. Sampling rate
8KHz/11.025KHz/16KHz/22.05KHz/24KHz/
The system supports 32kHz / 44.1KHz / 48Khz
An analog mic amplifier with built-in mic bias
6. Generator
Supports two PDM digital mic inputs
One channel analog MUX
Supports headless, single ended, and
Differential mode on DAC path
Supports 16 ohm and 32 ohm speaker loading
7. Bluetooth
Bluetooth compliant
V5.1 + br + EDR + ble specification
Meet level 1, level 2 and level 3 transmission
8. Power requirements
Support all data packets of GFSK and π / 4dqpsk
9. Type
Provide + 6dbm transmission power
Receiver with - 90dbm sensitivity
Fast AGC for enhanced dynamic range
10. Support
A2DP ⏴ vctp ⏴ vdtp ⏴ vrcphfpsppsppsp ⏴ ttgapgatt fcommsdpl2 upper limit profile
11. Peripherals
A full speed USB2.0 OTG controller
6 multifunctional 32-bit timers, support
Capture and PWM mode
Three full duplex basic UARTS, UART0 and
Uart1 supports DMA mode
A hardware IIC interface supports host and
12. Device mode
10 bit ADC for analog sampling
External wake / interrupt all graphics graphics
13. Puma
Low voltage LDO is internal digital and
Analog circuit power supply
3ua current consumption in soft off mode
Built in LDO core, I / O, Bluetooth and
shine
Vbat is 2.2V to 5.5V
VDDIO is 2.2V to 3.6V
14. Encapsulation
SOP16
15. Temperature
Operating temperature: - 20 ℃ to + 70 ℃
Storage temperature: - 65 ℃ to + 150 ℃
3、 Ac6969d pin definition diagram
