A: four-layer board to ensure the integrity of the ground and power supply, good RF performance and electromagnetic performance; Shenjin process PCB board to ensure that the reliability of patch welding, very low line impedance; onboard ble antenna, BQB certification, Your product exports are unimpeded.
B: Murata patch crystal, to ensure that the machine is always stable and RF stability
C: 128K EEPROM storage space, to ensure long-term stability of the work. Many of the market is using 64K, because each pair of a mobile phone, ble will store the phone information, if the pair of multiple mobile phones, 64K space is not enough, may cause ble can not work.
D: patch winding power inductors (many use a laminated inductor), the advantages of winding inductance is low impedance, large saturation current, Q value is high, the current is large, where the inductance is the chip DC-DC Energy storage inductance, his quality directly determines the stability of the whole power supply
Description
BT835 CSR8635 ble 4.0 Stereo Audio ble Receiver Board Speaker CSR8635 ble Audio Receiver Module
Product Description
The CSR ble module audio is a differential output, which requires the addition of an op amp or amp circuit to a
single-ended output (left channel, right channel, audio common).
single-ended output (left channel, right channel, audio common).
Product description:
The BT835 is a ble module based on the BC BC35 chip BC8635, which integrates almost all of the peripheral components of ble and optimizes the RF and audio performance of the module, providing an easy-to-use solution for ble product design. Mainly located in ble stereo applications, such as ble speakers, ble car kit, ble headset and so on.
Features
High integration, cost-effective, low power consumption
Support A2DP, AVRCP, HSP, HFP and other protocol framework
Conforms to the ble v4.0 specification
High replacement, and my other ble chip ble module completely compatible with each other, no need to change the design of direct replacement
3/5 key input (switch / pair / answer / hang up, play / pause, volume +, volume -, previous song, next song)
Built-in DSP chip can be used to achieve echo cancellation, environmental noise cancellation, EQ adjustment sound and other functions
The module comes with an antenna, and the good RF distance is the same
Support A2DP, AVRCP, HSP, HFP and other protocol framework
Conforms to the ble v4.0 specification
High replacement, and my other ble chip ble module completely compatible with each other, no need to change the design of direct replacement
3/5 key input (switch / pair / answer / hang up, play / pause, volume +, volume -, previous song, next song)
Built-in DSP chip can be used to achieve echo cancellation, environmental noise cancellation, EQ adjustment sound and other functions
The module comes with an antenna, and the good RF distance is the same
128K EEPROM
USB sound card function
AUX-IN input switching function
Application areas
Stereo ble Headset
Stereo ble speakers
ble Car Handsfree
8635 Software Description:
1. Key: 5 keys PLAY, VOL +, VOL-, PREV, NEXT. Key functions are as follows;
PLAY: Play / Pause
Go to pairing mode
Phone function: call click to answer, long press refused; call to hang up, long press to switch phone and ble ; double-click redial.
Stereo ble speakers
ble Car Handsfree
8635 Software Description:
1. Key: 5 keys PLAY, VOL +, VOL-, PREV, NEXT. Key functions are as follows;
PLAY: Play / Pause
Go to pairing mode
Phone function: call click to answer, long press refused; call to hang up, long press to switch phone and ble ; double-click redial.
VOL +
|
volume plus
|
VOL-
|
The volume is reduced
|
PREV
|
Previous song
|
NEXT
|
next song
|
MFB: you can take a toggle switch, high-level boot, low-level shutdown, you can also take a delay circuit to do hard boot.
2. LED: boot blue light long 1S, off the red light long 1S standby blue light 5S flash once, the connection status blue light 2S flash once, pairing state, red and blue alternately flashing, charging red light, full of bright blue light The
3. USB sound card function
4. AUX-IN switch function
5. 3.4V low alarm, 3.0V automatic shutdown
6. The maximum charge current is set to 200MA
7. 5 minutes no connection automatically shut down
8. PHONE power display
2. LED: boot blue light long 1S, off the red light long 1S standby blue light 5S flash once, the connection status blue light 2S flash once, pairing state, red and blue alternately flashing, charging red light, full of bright blue light The
3. USB sound card function
4. AUX-IN switch function
5. 3.4V low alarm, 3.0V automatic shutdown
6. The maximum charge current is set to 200MA
7. 5 minutes no connection automatically shut down
8. PHONE power display
Details Images
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