BTB15631 supports “AiroStereo”which two speakers can connect to each other,play left channel in one speaker and play rightchannel in another speaker as a wireless stereo system.AiroStereo can let end users have great stereo experience without wire connection.
a. 支持HFP，HSP，AVRCP，A2DP，SPP协议;
b. Embedded 48MIPS Dual-MAC DSP Coprocessor;
c. Support for noise reduction and echo cancellation;
d. Multi-band configurable EQ;
e. Support for voice prompt;
f. Integrated Li-ion battery charger supports 400mA fast charging and over-dischargingprotection;
系统框架
The main application of BTB15631 is Mono A2DP solution.The application block diagram is illustrated as below
Mono A2DP Application Block Diagram
The application of AiroStereo is illustrated as below
产品外观及接口定义
TOPOVERLAY:
BOTTOMOVERLAY:
MFB
长按：关机,配对
短按：接听/挂断电话,播放,暂停,开机
双击：兄弟配对
电气特性
电气参数
|
BTB15631
|
Item
|
Min
|
Typ
|
Max
|
Unit
|
Note
|
|
工作电压
|
3
|
3.7
|
4.2
|
V
|
锂电
|
|
工作电流
|
|
|
18
|
mA
|
HFP
|
|
工作电流
|
|
|
23
|
mA
|
A2dp＆32Ω
|
|
待机电流
|
|
|
1
|
mA
|
|
|
关机电流
|
|
|
2
|
μA
|
|
|
充电电流
|
|
|
|
mA
|
3.0~4.2V
|
音频参数
|
parameter
|
Conditions
|
Min
|
Type
|
Max
|
Ubit
|
|
|
-
|
-
|
-
|
16
|
Bits
|
|
SNR
|
fin=1kHZ
B/W=20HZ-20KHz
A-Weighted
THD+N<0.01%
0dBFS input
|
|
|
8
|
-
|
96
|
KHz
|
|
Faample
|
Load
|
|
|
48KHZ
|
100KΩ
|
-
|
94
|
-
|
DB
|
|
48KHZ
|
32Ω
|
-
|
94
|
-
|
DB
|
|
THD+N
|
fin=1kHZ
B/W=20HZ-20KHz
0dBFS input
|
Faample
|
Load
|
|
|
8KHZ
|
100KΩ
|
-
|
0.0025
|
-
|
%
|
|
8KHZ
|
32KΩ
|
-
|
0.0056
|
-
|
%
|
|
48KHZ
|
100KΩ
|
-
|
0.0027
|
-
|
%
|
|
48KHZ
|
32KΩ
|
-
|
0.0067
|
-
|
%
|
|
Digital Gain
|
DigitalGain Resolution=3dB
|
-47
|
-
|
-6
|
DB
|
|
Analogue Gain
|
Analogue Gain Resolution=3dB
|
-0
|
-
|
0
|
DB
|
|
Stereo separation(crosstalk
|
NC
|
NC
|
NC
|
DB
|
射频参数
|
Items
|
Limits
|
|
Output Power
|
|
-6 dBm <Pav<+4dbm(Class2)
|
|
|
Ppk < +23dBm
|
|
Power Control
|
|
≦ 8.00dB
|
|
Max Power Step
|
≧ 2.00dB
|
|
Initial Carrier
|
|
≦ 2 5kHz
|
|
|
≦ 2 5kHz
|
|
Modulation
Characteristic
|
|
140kHz < F1 < 175kHz
|
|
|
>= 115 kHz
|
|
|
|
>= 0.8
|
|
Sensitivity
|
BDR Single-slot Sensitivity
|
BER <= 0. 1 % at 1Mbps 80dBm
|
BDR Single-slot Sensitivity
|
BER <= 0. 1 % at 1Mbps 80dBm
|
|
|
|
BER <= 0.5% at input power>-20dBm
|
EDR Carrier Frequency
Stability and Modulation AccuracyEDR
|
Initial Frequency Error
|
-75 kHz < ωi < 75 kHz
|
|
Frequency Error
|
-10 kHz < ω0 < 10 kHz
|
|
Block Frequency Error
|
-75 kHz < ωi + ω0 < 75 kHz
|
|
RMS DEVM
|
RMS DEVM<=0.13 for all 8DPSK @3Mbps
|
|
Peak DEVM
|
Peak DEVM<=0.25 for all 8DPSK @3Mbps
|
|
99% DEVM
|
99% DEVM<=0.2 for 99% 8DPSK @3Mbps
|
|
-20dB bandwidth
|
|
f H – f L | ≤ 1.0 MHz
|
注：RF参数只用于样机签样数据，不作生产测完项，实际生产线上只测一到两项。
结构尺寸图
