资料介绍
蓝牙原理图5
4
3
2
1
LIBAT
TP1 . 1
BATTERY INPUT
1 2
6
VIN 1
L1 10uH 2 +2V7 1 4
7
DP1 DUM2P
C1 4u7(X5R)
TP2 . 1
JP7 CI4402
5V
+2V7 SW1 1 2 SW P24
TEST POINT
VOLUME UP
2
2 2 1 U1 C2 1u(X5R) GND CHG_IN ISET 17
1 C4 1u(X5R)
CHG_PWR
VIN1
BAT
LX1
D
D1 SCS551V-30
1 2 3 4 5 1 9 8
3
TP1 TP2
2 P21
BAT+ BATRF ROUT+ ROUTLOUT+ LOUTMIC+
TP9 TP10 TP11 TP12 TP13 TP14 TP15 TP16 TP17
MICD
SW2
P20 P14 EAN EN1 USBUSB+ GND P24
C3 10u(X5R) 5 +1V8 6 7 8 C5 10u(X5R) VIN2 EN2 PGND VOUT1 VOUT2 AGND
VOLUME DOWN
16 15 14 13 1 R1 4K7 R2 30K/1% BAT_DET 2 D2 CDSH3-222N LIBAT 1 5V 2 P1 US25R05-SBS 1
SW
TP3 TP4
2 P23
IS6601
CHG_STAT BAT_DET
SW3
FORWARD
SW
TP5 TP6
2 P04
EN1
LX2
13
SW4 LED1 LED-R 1 SW 1 R15 330 3 Q1 MMBT3904 1 +2V7 P06 1 R16 47K 2 SW 2 1
10
11
12
9
2 L2 10uH
1
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