Data Sheet

EnzyTek Technology, Inc.
7F, No. 35, Hsueh Fu Rd., Hsinchu 300,
Taiwan , R.O.C.
TEL：[phone] FAX： [phone]
16/25
BT Stereo Headset Application Circuit
C24 4.7uF
External charge transistor
VDD_PADS
D1 LL4148
USB_5V
D2 LL4148VBAT
BT_VDD
J10 CON6A
1 2 3 4 5 6
BT_VDD
VDD33
VBAT
VDD_PADS
VDD33
BT_1V8
GND _A
TBR_RX_D0 TBR_RX_CLK RESET TBR_TX_D0
R12 NC
PIO2 PIO3
I2S_CLK I2S_IN I2S_SYNC I2S_OUT
LED2 LED5 LED4
I2C_SDA I2C_SCL
VDD_PADS BT_1V8
C6 10uF/X7R
R11 0R
PIO15
VDD 33
PIO61 VDD_RAM_1V8
R40
530R
R39 530R
C25 5.1nF
SPKLP SPKLN
R41 530R R42
530R
SPKRP
C26
5.1nF
SPKRN
Low pass filter
BT_VDD
R29 680R
RGB
LED1
LED_RGB
4
1
2
3
R31 680R
LED0
R30 680R
LED1 LED2
C9 1uF
R22 1M
J4 M106
1 2 3 4 5
6 7
8 9
R20 0R
GND_A
J8
AJ390A-6-SMT
1 2 3 4 5 6
GND_A GND_A
GND_A GND_A
GND _A
C12 0.1uF
R15 10K
U2 MAX97220A
LINN
14
LINP
15
SHDN
16
CIP
2
CIN
4
RINP
7
RINN
8
ROUT
10
PGND
3
PVDD
1
BIAS
11
PVSS
5
EP
17
SGND
6
SVDD
13
SVDD
9
LOUT
12
R18 10K R25 10K
R14 10K
R24 10K
R26 10K
EAR_R
C8 1uF
C10 1uF
C7 1uF
C15 1uF
EAR_L
C11
1uF
C4 1uF C5 1uF
C18 1uF C17
1uF
R23 10K
EAR_L EAR_R
R19 10K
PHONE JACK
MIC _I N
GND_A
GND_A
R21 10K
R13 1K
MIC-BIAS
GND_A
L2
15nH
MIC IN
MIC _I N
C21 15pF R33 2.2K
C20
150nF
MIC LN MIC LP
C22 1uF
C16 NC
U3
S-1333
VDD
1
VSS
2
CE
3
NC
4
Vout
5
C14 4.7uF
C13 4.7uF
VDD 33
J6 CON6A
1 2 3 4 5 6
C23 4.7uF
USB_DEV_DP USB_DEV_DN
USB-DP USB-DN
VCHG
BT_VDD
USB_5V
Q2
2N3904
R1 10K
BT_VDD
R16 22R
R8 10K
R17 22R
C1 1uF R5 10K
PIO2
R32 10K
SW2 HTS-4030E
PIO3
R34 10K
SW3 HTS-4030E
SYS-CTRL
R4 NC
Power on delay circuit
SW1 HTS-4030E
SYS-CTRL
R27 10K
L1 BEAD
U1
BTA-QC30XX-3M
PIO20
2
PIO61
50
VDD_RAM_1V8
49
PIO53
47
PIO52
48
PIO54
46
PIO19
3
PIO18
4
PIO17
5
PIO16
6
VCHG_SENSE
12
CHG_EXT
13
SY S_CTRL
14
LED0
17
PIO4
28
PIO5
29
PIO6
30
LED2
19
1V8
23
VDD_PADS_3/7
24
VDD_PADS_1
25
PIO2
26
PIO3
27
LED4
20
LED5
21
PIO7
31
PIO8
32
PIO1
33
GND
34
SPKR_RN
35
SPKR_RP
36
SPKR_LN
37
SPKR_LP
38
GND
39
MIC_RN
41
MIC_RP
42
MIC_LN
43
MIC_LP
44
PIO21
1
PIO15
7
GND
8
USB_DN
9
USB_DP
10
VCHG
11
GND
16
LED1
18
VBAT
15
GND
22
GND
45
MIC_BIAS
40
PIO20 PIO21 PIO19 PIO16 PIO17 PIO18 PIO15 VCHG_SENSE VCHG USB_DEV_DP USB_DEV_DN SYS-CTRL VCHG_EXT
LED1 LED0
MICRN MICRP MIC lN MIC LP PIO1 SPKRN SPKRP SPKLN SPKLP
MIC-BI AS
PIO4 PIO5 PIO6 PIO7 PIO8
VCHG
VCHG_EXT
Q3 BCX51 SOT-89 1:B,2:C,E:3
CHG_EXT
5%/1W R1210
VBAT
R38 0.1R
BT2 BATTER Y
VCHG
VCHG_SENSE
VCHG_SENSE