蓝牙音响设计原理图参考

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AB5325A蓝牙音箱标准原理图

AB5325A蓝牙音箱标准原理图
1
2
3
4
U1
A
DACL
1
AGND
C1 104 VDDDAC
2 3
FM_ANT L1
0R/220nH/470nH 4
BLUE_LED 5
6
MUTE
7
C3 104 VDDIO
8
C4 104 VMCU
9
GND
C6 105 VDDBT
10 11
PWRKEY 12
DACL VDDDAC AGND FM_ANT PE7/AUXR2/ADC9/IR PE6/AUXL2/ADC8/IR PE0/MUTE/IR VDDIO VBAT DGND VDDBT PWRKEY
J1
TF3
1 2 3 4 5 6 7 8 9 10
SD2 SD3 SCMD VDD SCLK VSS SD0 SD1 CD SHEET
D
upDate:芯片支持USB与SD接口升级
GND
C
PWRKEY
LED
MIC
USB/SD
R8
D2
RED GND
NC
Q1
R9
2K
JACK1
MINI-USB
+5V
8550
24 23 22 21 20 19 18 17 16 15 14 13
AUX MICIN SDCMD SDCLK SDDAT USBDP USBDM OSCO OSCI
BT_ANT
C2 NC Y1
26MHZ
GND
C5
NC
2
L2
0R
1
BT-ANT1
L3
L4
ANTENNA_PIFA
A

AC6901A蓝牙方案标准原理图V1.0

AC6901A蓝牙方案标准原理图V1.0

VCOM DACVDD DACL DACR MIC AUXL AUXR LINEIN PHIN AD_KEY PWR_CTL MUTE
C105 105
J302
C106 105
2 4 3 1
LPF_R PHIN LPF_L
R301 100R
C303 10uF
DACR
DACVDD
DACL R302 100R C304 10uF R306 1K R307 2.2K R304 10K C308 224 C301 105 AUXR AUXL R305 10K C305 NC/202 C307 224 C306 NC/202 C302 102 C309 104 MIC
S401 V-
S402 V+
S410 NC
C/S C/S C/S C/S C/S C/S C/S
7 6 5 4 3 2 1
备注:若功放Shutdown 后功耗为uA级别, 此电路可省, 直接短接,但需考虑U盘耗电
C/S7 C/S6 C/S5 C/S4 C/S3 C/S2 C/S1
B V_PA
C601 NC/105
C110 15P Y101 C111 15P 32.768K C109 2.7P L102 NC L103 0R C113 106
1 2 3 4 5 6 7 8 9 10 11 12
VSSIO LDO_IN VDDIO RTCVDD PR1/ADC12 PR2/ADC13 PR3 OSC32KI PR0/OSC32KO BT_AVDD BT_RF AVSS
LCD_CS LCD_RES LCD_A0 LCD_DATA
BL_LIGHT LCD_CLK USBDM USBDP
BT_OSCI BT_OSCO

DIY时尚蓝牙音箱电路图

DIY时尚蓝牙音箱电路图

DIY时尚蓝牙音箱电路图
•详细说明
材料:音箱1只,蓝牙耳机主板1块,锂电池1块,开关按键两个,长的按键压杆2个,导线若干。

做法:将蓝牙耳机的各按键外引,更换电池,耳机线外引。

原理框图见下图。

制作过程:
1.将原蓝牙耳机电池换成容量更大的诺基亚手机锂电池,同时引出正负极,做充电接口。

2.将蓝牙耳机的“音量增加”和“音量减小”的按键接出引线,外接按键。

3.保持蓝牙耳机的“蓝牙打开按键”不动,在其上方加一个按键压杆。

4.将蓝牙耳机原听筒拆除,导线外引,接音箱的音频输入。

5.最后,用热熔胶和透明胶带进行固定,组装。

至此,蓝牙音箱DIY就大功告威了。

与电脑进行蓝牙配对后,就能像使用蓝牙耳机那样使用蓝牙音箱了。

其优点在于,大容量的电池让蓝牙使用时间更长,而且不再受“线”制,十分方便。

AC4602杰理蓝牙音响标准原理图

AC4602杰理蓝牙音响标准原理图

U1
DACR DACL DACVDD VCOM DACVSS FMIP PLLAVSS PLLAVDD LDO_IN AVDD BT_RF AVSS BTXOSCO BTXOSCI
28 27 26 DACVDD 25 24 23 22 21 C3 105 C7
DACR DACL C6 105 105 LINEL C25 L3 LINER C49 R8 FM_ANT C26 LINE_EN C19
2 VCC3V7 1 SP2
LED1
RED
R23 47K 2 S5 RESET
R51 47K
PPLED
2 R7 1K
1
LED2
BLUE
C14 105
INR
INL
1
S2 L2 NC
MODE
R42
9K1 6K2 3K
MT3608
S3 NEXT/VOL+ S4 PREV/VOL-
R50 R56
USB供电,
分升压和不分压两种方式可选。
VCC3V7 R2 0R USBDM USBDP C47 104 C42 100P VBUS 1 2 3 4 5 6 VBUS DM 22K上拉电阻一定要放在主控IC这边.
充电
POWER
DACR DACL USB1 MICRO VBUS DM DP ID GND 1 2 3 4 5 6 7 8 9 10
D2 1N5819 1
R6 2R2
R5 4.7K 102 C36 C37 102
VCC3V7 220uF
BAT
2
VBAT+
2 1
2
C25,L3尽量靠IC放 QQ:1207435600 C15,L4尽量靠IC放 模拟地尽量接功放地或者电池地 USBDM、USBDP尽量走差分线,远离其它的信号线

杰理AC6928A蓝牙、插卡单声道音箱方案原理图.PDF

杰理AC6928A蓝牙、插卡单声道音箱方案原理图.PDF
Biblioteka 要求:稳定性、一致性要好,
B、单声道、带过热保护功能音频功放
R4 10K
2、蓝牙匹配电路参数以调试结果为准 3、为保证产品的安全可靠性,电池必须用带保护板的电池。
频偏偏差:±10PPM以内 电容:晶振匹配电容位置请预留
Y1 OSCI
24MHZ OSCO
C、宽工作电压范围2.5V—7V D、超低EMI,高效率,音质优
DACVDD
ADC12/PR1
VCOM
RTCVDD
DACVSS
VBAT
VDDIO
PWMH2H/ADC9/AUX0R/PB5
20 19 18 17 16 15 14 13 12 11
OSCO OSCI GND BT_RF BTAVDD AD_KEY C16 MUTE RTCVDD C17 VBAT PP/LED C4
2、8W输出功率设置: A、8W功率输出的条件:
MUTE C5 105
U1 1 SD 2 BYP
HX8358 VOP 8 GND 7
SPL1 1
+
NC
NC
4 3
C1
C2
VDD=6V,RL=2Ω,Po=8W,THD+N≤10% B、8W功率输出设置:
VBAT R1 33K
3 MODE 4 IN
VDD 6 VON 5
B
TF卡电路
13
12
+3.3V
TF1
4R7 R25
SD_CMD
SD_CLK
SD_DAT R16 3K
1 2 3 4 5 6 7 8 9
DAT2 DAT3 CMD VDD CLK VSS DAT0 DAT1 SW DECT

AC6951C蓝牙音箱方案标准原理图V1.1

AC6951C蓝牙音箱方案标准原理图V1.1
R304 10K
C308 105
AUXR
AUXL
C307 105 R305 10K
MIC_BIAS
C302 NC
C309 104
MIC
+ M301 MIC
MIC、PA、Earphone,AUX
B
6
VMCU
C601 224
C602 225
USB5V
U601
6 5 4
C+ VIN C-
VOUT GND EN2、内 Nhomakorabea 锂电 的方 案,RTCVDD可不 接纽 扣电 池,也支 持走 时
C
3、无时 钟的 方案 ,32K晶振 和RTCVDD引脚 悬空
C106 105 C107 105 C108 105
BT_ANT
C104 15P C105 15P
Y101
32.768K
C109
SD_DAT VMCU
+3.3V RTCVDD
注:原理 图中 注释 说明 设计时 需特 别注 意
D
FM_ANT
L101 102P
L102 NC
C101 NC
C102 105
C103 105
SD_CMD SD_CLK PHIN LINEIN AUXL AUXR SD_PWR FM_ANT DACR DACL DACVDD VCOM
48 47 46 45 44 43 42 41 40 39 38 37
D2 D3/CS CMD/DI VSS VDD CLK VSS D0/DO D1
A
3.3K
SD_DET
10 11 12
CD WP SHEET
SD
KEY、SD
13

蓝牙芯片AB5321A标准原理图

蓝牙芯片AB5321A标准原理图

300/10K/200K PE4
300/10K/200K PE5
300/10K/200K PE6
300/10K/200K PE7
300/10K/200K PF0
G F E D C B A
7 LED_G 6 LED_F 5 LED_E 4 LED_D 3 LED_C 2 LED_B 1 LED_A
可根据layout的情况调整IO的顺序
R9
S10
5.1K
VOL+
R10
S11
B
7.5K R11
VOLS12
10K
PHONE
R12
S13
15K
NEXT/VOL+
AUXUSB FM SD
VMCU VDDBT SDDAT SDCLK SDCMD PWRKEY BT_ANT VDDBT
C5
C8
104
NC
L3
0R
2
BT-ANT1
1
ANTENNA_PIFA
300/10K/200K PF3 300/10K/200K PF4 300/10K/200K PF5
SEG_LED8888_7P
R13
S14
20K
PREV/VOL-
R14
S15
33K
NC
R15
S16
GND
GND
GND
AB5321A LQFP48 7*7 硬开关蓝牙音箱V1.0
LED
ADKEY
56K
NC
IRDA
LED1
MHZ MP3
PWRKEY
VDDIO
R5 10K ADKEY
R6 1K R7 2K R8

AC6925A双声道蓝牙MP3音箱方案原理图详细说明

AC6925A双声道蓝牙MP3音箱方案原理图详细说明

1 2 3 4
SD BYP MODE IN
8 7 6 5
C12 226 VMCU
SPR1 1 2 + C
L2
0R NC L4
C16 105 C17 105
R2
33K
R5
10K
R10 15K
按键
按键电路说明: 1、如果要做按键分离, R11上拉电阻最好 放在主板一边 2、AD_KEY走线远离音频线和数据线 3、电阻阻值尽量按我的来设计 4、按键功能定义还可以多加
1
2
3
4 R4 U1
MUTE C5 105 AB/D
MCU 注:原理图中注释说明设计时需特别注意
D
晶振选型: 封装:兼容3225,M49S,HC49S等封装 要求:稳定性、一致性要好, 频偏偏差:±10PPM以内 电容:晶振匹配电容位置请预留
Y1 OSCI NC 24MHZ OSCO NC C2 180NH L1
R26 100R
MIC
通话电路
DACVDD
C20
104
R14 6K2
+ MIC/-38db USB1
VMCU
1 2 3 4
+5V DM DP GND 5 B
B
放电电阻,请预留
POWER2
U盘电路
USBDM USBDP
R11 22K
硬开机电路
VMCU
+3.3V PP/LED R12 1K R13 1K
C4 104 C10 NC
10K
HX8358 VOP GND VDD VON R7 R9 NC 15K
C6 105 DACL
设计注意事项: 1、主控所有电源的退耦电容必须靠近芯片放置, 退耦电容的回路地必须最短回到该电源地. 2、蓝牙匹配电路参数以调试结果为准 3、对FM要求比较高的客户,请预留FM放大电路, 灵敏度可提升2dBu以上。FM信号线铺地, 间距至少0.6MM以上。 4、为保证产品的安全可靠性,电池必须用带保护板的电池。
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