This is a dual-channel audio power amplifier integrated circuit (IC). The IC is designed to provide high-quality audio amplification for a wide range of applications, including audio systems, portable music players, and multimedia devices.
Part Number: LA4289N
Function: Audio Power AMP
Package: ZIP 13 Pin
Manufacturer: Panasonic
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Description
The IC includes a number of built-in protection features to ensure safe and reliable operation, such as overcurrent protection and thermal shutdown. It also features a mute function that can be controlled via an external signal.
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
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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
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
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Applications
1. Bluetooth stereo speaker
2. Bluetooth stereo headset
3. Bluetooth control and multimedia hybrid
Other data sheets are available within the file: BK8000LQB
