Audio

BK8000L Datasheet – Bluetooth Module ( Audio device )

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What is BK8000L?

This is a highly integrated Bluetooth audio module that is designed for wireless audio applications. It includes an advanced Bluetooth 4.0 wireless protocol stack, a high-performance audio codec, and a low-power stereo audio amplifier, all on a single compact PCB.

Function: Bluetooth Audio IC

Package: QFN 6×6 48-Pin  Type

Manufacturer: Shenzhenshi Xinzhongxin Technology

Images:

BK8000L bluetooth module

Bluetooth Module Pinout

1 GND ground antenna _GND
2 ANT antenna (default built-in antenna, external disconnect)
3 GND ground antenna _GND
4 VOL + (TMS) volume up (programming interface)
BK8000L – ElectroDragon https://web.archive.org/w/BK8000L
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5 VOL- (TCK) Volume down (programming interface)
6 NEXT (TDO) under a (programming interface)
7 PREV on (TDI) song (programming interface)
8 RSTN low reset (programming interface)
9 MBISTEN Memory bit check
10 TX (GPIO0) serial TX
11 RX (GPIO1) serial RX
12 PP / CALL (GPIO2) Play / Pause / receive calls / back / re-pair
13 LED0 (GPIO3) status indicator
14 LED1 (GPIO4) status indicator
15 MUTE (GPIO5) Mute control (mute low)
16 GND Power ground
17 AGND AUX ground
18 AUX_DET (GPIO11) AUX insertion detection
19 AUX_R AUX right input
20 AUX_L AUX left input
21 MIC_N microphone negative terminal
22 MIC_P microphone positive terminal
23 VMIC Mike bias voltage
24 LN Audio left channel differential output negative end
25 LP audio left channel positive differential output terminal
26 RP audio right channel positive differential output terminal
27 RN audio right channel negative differential output terminal
28 VBUS 5V input charging port (charging is not enabled)
29 VBAT power input (2.8 ~ 4.2V)
30 3V0 3V output
31 ADC ADC input (not enabled)
32 GND Power ground

Description

The BK8000L chip is a highly integrated single-chip Bluetooth audio device. It integrates the high-performance transceiver, rich features baseband processor, and Bluetooth audio profile. The BK8000L cache based architecture enables it is fully programmable with any application, that it may be used for control and multimedia hybrid application. The module supports various Bluetooth audio profiles, such as A2DP, AVRCP, and HFP, allowing it to stream audio wirelessly from a smartphone, tablet, or computer. It can be easily integrated into audio devices, such as speakers, headphones, and audio systems, providing a convenient and efficient way to enable wireless audio connectivity.

Pinout

BK8000L datasheet pinout

Features

1. Operation voltage from 2.8 V to 4.2 V
2. Bluetooth 2.1+EDR compliant
3. A2DP v1.2, AVRCP v1.0 and HFP v1.5 profile
4. Integrated 96 dB SNR stereo ADC and stereo DAC
5. Five bands hardware equalizer
6. Digital equalizer for stereo line in
7. Hardware accelerator for low power
8. Full duplex hands-free speakerphone
9. Up to 250 mA charge controller

[…]

Applications

1. Bluetooth stereo speaker
2. Bluetooth stereo headset
3. Bluetooth control and multimedia hybrid

Other data sheets are available within the file: BK8000LQB

BK8000L Datasheet

BK8000L pdf


 

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AD74111 Datasheet – Mono Audio Codec, TSSOP 16

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Part Number: AD74111

Function: Low Cost, Low Power Mono Audio Codec

Package: 16-Lead TSSOP Type

Manufacturer: Analog Devices

Pinouts:

AD74111 datasheet

 

Description

This is Mono Audio Codec.

The AD74111 is a front-end processor for general-purpose audio and voice applications. It features a multibit – A/D conversion channel and a multibit – D/A conversion channel. The ADC
channel provides >67 dB THD+N and the DAC channel provides >88 dB THD+N, both over an audio signal bandwidth. The AD74111 is particularly suitable for a variety of applications where mono input and output channels are required, including audio sections of digital video camcorders, portable personal audio devices, and telematic applications. Its high quality performance also makes it suitable for speech and telephony applications such as speech recognition and synthesis, and modern feature phones. An on-chip reference voltage is included but can be powered down and bypassed by an external reference source if required. The AD74111 offers sampling rates that, depending on MCLK selection and MCLK divider ratio, range from 8 kHz in the voiceband range to 48 kHz in the audio range. The AD74111 is available in a 16-lead TSSOP package option and is specified for the automotive temperature range of –40°C to +105°C.

Features

1. 2.5 V Mono Audio Codec with 3.3 V Tolerant
2. Digital Interface
3. Supports 8 kHz to 48 kHz Sample Rates
4. Supports 16-/20-/24-Bit Word Lengths
5. Multibit – Modulators with
6. “Perfect Differential Linearity Restoration” for
7. Reduced Idle Tones and Noise Floor
8. Data Directed Scrambling DAC – Least Sensitive to Jitter
9. Performance (20 Hz to 20 kHz)
10. 85 dB ADC Dynamic Range
11. 93 dB DAC Dynamic Range
12. Programmable ADC Gain
13. On-Chip Volume Control for DAC Channel
14. Software Controllable Clickless Mute
15. Supports 256fS, 512fS, and 768fS Master Mode
16. Clocks
17. Master Clock Prescaler for Use with DSP Master Clocks
18. On-Chip Reference

Applications:

1. Digital Video Camcorders (DVC)
2. Portable Audio Devices (Walkman®, PDAs, and so on)
3. Audio Processing
4. Voice Processing
5. Telematic Systems
6. General-Purpose Analog I/O

Other data sheets are available within the file: AD74111YRU

AD74111 Datasheet PDF Download


AD74111 pdf