Schematics

ManualsBrandsBytech NY ManualsAudio EquipmentTrue Wireless BLTH Earbuds-AC

1

1

2

2

3

3

4

4

D D

C C

B B

A ABTOSCO BTOSCI

+3.3V

VMCU

VDDBT POWK EY

BT _ANT

BTOSCI

BTOSCO

BL UE

DACL

VUSB

MICL

VCMBU F

RE D

GND

VMCU

GND

BL UE

VUSB

+3.3V

MICL

DACL

VCMBU F

POWK EY

GND

GND

BL UE

RE D

GND

LINEIN

DACL

DACL

VCMBU F

GND

POWK EY

RF

C1 104

PE7/ADC9

1

AGND

2

PE0

3

VUSB

4

VDDIO

5

VBAT

6

DGND

7

VDDBT

8

PWRK EY

9

BT _ANT

10

BT _OSCI

11

BT _OSCO

12

ADC5/USBDP/PB3

13

IR/ADC10/MICL /PF2

14

DACR

15

DACL

16

U1

AB5337A

C2 105

C3 105

Y 1

26M

1

2

BT _ANT

L1 0R

L2

NC

L3

NC

C4 104

R1

6.8K

12

+ MIC

R2

12K

1 2

S1

POW/PLAY

1 2

S2

PRE V

1 2

S3

NE X T

1

L-

1

L+

3

4

2

1

LINEIN

R4

820K

R5

100K

B

1

C

3

E

2

Q1

9014

1 2

BL UE

1 2

RE D

VCC

1

DM

2

DP

3

GND

4

GND

5

GND

6

GND

7

GND

8

GND

9

USB-DC

1

B+

1

B-

NE X T

NE X T

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