rt1025 ecg/ppg afe cardioid evaluation board · the rt1025 is an integrated afe solution for...

RT1025WS_P0 Evaluation Board

EVB_RT1025WS_P0-02 November 2018 1 http://www.richtek.com

your power partner.

RT1025 ECG/PPG AFE Cardioid Evaluation Board

Purpose

The RT1025 is an integrated AFE solution for Heart-Rate monitoring and Biopotential measurements. The RT1025

integrates low noise voltage and current sensing channels and is capable of sensing ECG (Electrocardiography) and

PPG (Photoplethysmography) simultaneously. Richtek Technology developed an evaluation board with Android APP

to evaluate the RT1025 performance. This document describes the operation manual of the RT1025 evaluation board.

It includes the schematic, hardware and bench measure procedure.

Table of Contents

Purpose ................................................................................................................................................................. 1

Introduction ............................................................................................................................................................ 2

Key Performance Summary Table .......................................................................................................................... 3

Bench Test Setup Conditions ................................................................................................................................. 4

Schematic, Bill of Materials & Board Layout ......................................................................................................... 10

More Information.................................................................................................................................................. 15

Important Notice for Richtek Evaluation Board ..................................................................................................... 15



your power partner.

Introduction

General Product Information

The RT1025 is an integrated AFE solution for Heart-Rate monitoring and measurements. The RT1025 integrates low

noise voltage and current sensing channels and is capable of sensing ECG (Electrocardiography) and PPG

(Photoplethysmography) simultaneously. The RT1025 has > 100dB dynamic range and can sense pulses accurately

by detecting the heart’s electric signals. The sampling rates of the high-precision voltage and current sensing

channels in the RT1025 are configurable between 64 to 4kHz. The RT1025 solution need only few discrete

components and is easy to use for low-power medical ECG/PPG, sports, and fitness applications. With high levels

of integration and high-precision voltage and current sensing channels, the RT1025 solution is suitable for scalable

medical instrumentation systems. The RT1025 is available in a 3.1mm x 3.4mm, 41-Ball, 0.4mm pitch, WL-CSP

package.

The Cardioid evaluation board (Cardioid Pad) was developed full function Android APP to evaluate the RT1025

performance. The evaluation board includes the RT1025 together with the BLE SiP and PPG modules to quickly

evaluate the operation and performance of the RT1025. The detail schematic, hardware and bench measure

procedure will be described in the following section. The evaluation board number is PCB106_V1 and the dimensions

are 9cm x 5cm.

Product Feature

Evaluation Board Features

Evaluation Board Number : PCB106_V1

Dimension : 9cm x 5cm

ECG Channel Feature

3 PCB ECG Electrodes

Ear phone Jack for 3 ECG Electrodes

Low Input-Referred Noise : 0.67µVrms (64Hz ODR, Gain = 12)

Dynamic Range : 110dB at Gain = 6

CMRR > 85dB at 60Hz

Data rate : 64SPS to 4k SPS

PPG Channel Features

G/Red/IR LED with PD Module

Boost Supply for Green LED

TX LED Current Range : 10 / 25 / 35 / 50 / 65 / 75 / 90 / 105mA, Each with 8-bit Current Resolution

Input-Referred Noise : 50pArms at 5µA Input Current

CMRR > 80dB at 60Hz

PGA Gain : 1 to 6V/V

Others

Connect with “Cardio EVK” Android APP

Programmable BLE SiP

I2C interface for display panel

USB Micro-B interface for Lithium-Ion Battery Charging

Operating Temperature Range : –20°C to 65°C

RoHS Compliant and Pb Free



your power partner.

Key Performance Summary Table

Key Features Evaluation Board Number : PCB106_V1

PCB Battery Supply Voltage 3.6V (LIR2430)

PCB Battery Charging Voltage 5V via Micro USB connector

Current Consumption (Idle) 136µA

Current Consumption (BLE Advertising) 220µA

Current Consumption (BLE Connecting) 350µA

Current Consumption (Measuring) 8mA to 19mA (Depend on PPG measuring current setting)

Default Marking & Package Type RT1025WS, WL-CSP-41B 3.10x3.48 (BS)

* Note that EVB_RT1025WS_P0 kit does not include LIR2430 battery due to transport regulations.

* LIR2430 is a rechargeable Lithium Coin Cell 3.6V, capacity 80mAh.



your power partner.

Bench Test Setup Conditions

Headers Description and Placement

Carefully inspect all the components used in the EVB according to the following Bill of Materials table, and

then make sure all the components are undamaged and correctly installed. If there is any missing or

damaged component, which may have occurred during transportation, please contact our distributors or e-

mail us at [email protected].

Test Points

The EVB is provided with the connecter interfaces and pin names listed in the table below.

Test point/

Pin name Signal Comment (expected waveforms or voltage levels on test points)

VRLD Output voltage ECG RLD output.

FR / FL ECG Input Fingers contact for differential ECG input.

JP2 OLED Display

Interface (Option for display development)

JP2-1 DVDD33 Display supply voltage 3.3V.

JP2-2 DGND Display ground.

JP2-3 G_SCL Display I2C data pin.

JP2-4 G_SDA Display I2C clock pin.

JP4 EVB Interface Cardioid evaluation board Interface.

JP4-1 DVDD_SYS MCU supply voltage 3.3V.

mailto:[email protected]



your power partner.

Test point/

Pin name Signal Comment (expected waveforms or voltage levels on test points)

JP4-2 VPPG0_EN PPG R/IR LED select.

JP4-3 EXT_Control Bypass MCU on EVB (High : Bypass, Floating : Default)

JP4-4 VPPG1_EN PPG R/IR LED select.

JP4-5 E_RSTB RT1025 ECG/PPG AFE RSTB.

JP4-6 VBST_EN PPG Gn LED select.

JP4-7 E_PWD RT1025 ECG/PPG AFE RWD.

JP4-8 LDO_EN RT5707 DVDD18 enable.

JP4-9 E_INT RT1025 ECG/PPG AFE INT.

JP4-10 CHG_N RT9527 Charger CHG_N.

JP4-11 E_CSN RT1025 ECG/PPG AFE SPI data pin.

JP4-12 G_INT2 RT3001 G-sensor INT2.

JP4-13 E_CLK RT1025 ECG/PPG AFE SPI clock pin.

JP4-14 G_INT RT3001 G-sensor INT1.

JP4-15 E_MOSI RT1025 ECG/PPG AFE SPI serial in master out.

JP4-16 G_SDA RT3001 G-sensor I2C data pin.

JP4-17 E_MISO RT1025 ECG/PPG AFE SPI serial out master in.

JP4-18 G_SCL RT3001 G-sensor I2C clock pin.

JP4-19 DGND Ground.

JP4-20 DGND Ground.

CON5 ECG Input JACK Phone input for ECG patch.

CON5-1 VRLD_CON ECG RLD output.

CON5-2,

CON5-5 NC No internal connection.

CON5-3 FR ECG right signal input.

CON5-4 FL ECG left signal input.

SWD_B SWD debug pins MCU SWD debug pins.

SWD_B-1 DVDD33 MCU power pin 3.3V.

SWD_B-2 SWDIO MCU SWD IO pins.

SWD_B-3 SWCLK MCU SWD clock pins.

SWD_B-4 RESETN MCU SWD reset pins.

SWD_B-5 DGND Ground.

USB3 USB Charger Interface USB Micro-B for charger interface.

USB3-1 VBUS RT9527 charger IC input.

USB3-2 D- No internal connection.

USB3-3 D+ No internal connection.

USB3-4 ID No internal connection.

USB3-5 GND Ground.



your power partner.

Measurement Procedure

The RT1025 supports the reading of samples and device status upon interrupt or via polling. It contains 4kB SRAM

for data buffering. The device is internally clocked to offer high-precision clock with external crystal. The flexible timing

control enable the users to control the PPG device timing for different application and to power down the device for

power saving. In order to achieve the high speed data acquisition, the RT1025 device was configured as a slave of

SPI mode. The Cardioid evaluation board is fully assembled and tested. The usage of the evaluation board was

shown in below figure.

1. Insert LIR2430 Battery in the battery case. The battery can be charged by applying 5V via the Micro USB port.

Once on, you should see a Red LED lighting for OK status

If no light is present, check connections or try replacing the Battery with a fresh one.

If Red LED is flashing, check the I2C or SPI device correct connections.

2. Make sure the evaluation board connect to the Android APP for ECG/PPG measurement

Make sure Bluetooth is enabled on the phone/tablet.

Launch the “Cardio EVK” application on your phone/tablet.

Then, you will need to connect to the Cardioid evaluation board Hardware. Do this by selecting the “BLE ICON”

that shows up upon opening the android application. Select the evaluation board ID (RTK_CARDIO_00XXXX)

from pup-out menu for BLE paring.



your power partner.

After the Cardioid evaluation board BLE connection is successfully established, the “BLE ICON” will become

blue and the main GUI will launch.

3. Put your fingers cover the VRLD and PPG sensor in the top, FR/FL in the bottom.



your power partner.

4. Select “PPG+ECG“ tab firstly, then press “Measure” to start PPG+ECG data acquisitions. Note that it may take

a while to get stable results. Press “Stop”, once you finish the measurement.

5. Check the measurement results. Press “SAVE” to store the measured data for analysis.

Please refer to the document APP_RT1025WS_P0-00_EN for more information about the Android APP.

https://www.richtek.com/~/media/EVB%20PDF%20File/EVB_RT1025_P0/APP_RT1025WS_P0-00_EN.pdf?utm_source=RTWWW&utm_medium=RTWWW&utm_campaign=EVB_RT1025_P0



your power partner.

Typical Application Circuit

Using Cardioid evaluation board for ECG/PPG Sensing

RT1025

GND_D

AVDD28

AVDD_HV

GND_HV

VRLD

INP_ECGECGElectrode

INN_ECG

INP_PPG

INN_PPG

TX1

TX2

GND_A

DVDDIO

DVDD18

2.8V

2.8V

3.3V

1.8V

XTALI

RESETBRESETB

AFE_PWDAFE_PWD

I2C / SPI SPI

INTINT

BLE

SiP

2.2uF

2.2uF

2.2uF

1uF VBG

2.2uF

VRLD

VLX

1KΩ

Evaluation Board (PCB106_1)

32Khz Xtal

2.8V(AVDD)

1.8V(DVDD)

3.3V(DVDDIO)

R

3.3V

4.5V

IR

Gr

PPG Module

RT5707

RT5707

RT9703

RT3001

Accelerometer

I2C

Battery Charger

RT9527 +

LIR2430

RT48134.5V(Boost)



your power partner.

Schematic, Bill of Materials & Board Layout

EVB Schematic Diagram

Bill of Materials

Reference Qty Part number Description Package Manufacturer

BAT1 1 BT-BS-24-A1AJ001 SIP-2P CR2430 HUAI YANG

CON5 1 EJ-3699M-GP JACK_CON/5P/EJ-

3699M-GP

AUDIOJACK/5P/SMD/

EJ-3699M-GP Dian Jin

C3, C11, C12 3 C1005X7R1H104K050BB 100nF/50V/X7R C-0402 TDK

C5 1 C1005X5R1A475KT 4.7µF/6.3V/X7R C-0402 TDK

SWD_B

SIP-5P

11

22

33

44

55

PL1 0 ohm1 2

PL3 0 ohm1 2

VRLD_CON

PL2 0 ohm1 2FL

FR

ES

D1

ES

D /

AZ

53

25

-01

F

12

BGM11S22F256GA

RT1025

VCM

C107 10

uF

/ 04

02

/ 6.3

V / X

5R

21

ES

D2

ES

D /

AZ

53

25

-01

F

12

ES

D3

ES

D /

AZ

53

25

-01

F

12

R207

10

0K

/02

01

/1%

12

L1 2.2uH/1239AS-H-2R2M/25201 2

R7

88

06

K/0

40

2/1

%

12

AVDD28

PL4PL / MAKK2016H2R2M

1 2

U14

U / RT4813 / UQFN-9L

SW3

VIN8

SCL9

SDA5

VOUT2

FB7

EN1

GND6

PGND4

VIB

AFE_VBST_EN 3AFE_VBST_EN

AFE_VBST

DVDD_SYS DVDD_MCU

R209

10

0K

/02

01

/1%

12

R208

NC

/10

0K

/02

01

/1%

12

R210

NC

/10

0K

/02

01

/1%

12

NTC1NCP15X1-H103F03RC

12TS

PPG Power

FR 3FL 3

VRLD_CON 3

FLFRVRLD_CON

C8

1uF / 0402 / 6.3V / X7R21

VIN

EXT_Control 3

R84.7K/0402/1%

12

E_CLK

E_MISO

E_RSTB

E_MOSI

E_CSN

E_MOSI 3E_MISO 3

R94.7K/0402/1%

12

E_CLK 3E_CSN 3

R2010/0402/1%

1 2R2020/0402/1%

1 2

E_RSTB 3

R24 NC/0/0402/1%

1 2

DVDD18

C5

4.7uF / 0402 / 6.3V / X7R21

E_INT

BAT

E_INT 3

R4 1K/0402/1%

12

R211

10

0K

/02

01

/1%

12

R212

NC

/10

0K

/02

01

/1%

12

R213

10

0K

/02

01

/1%

12

BAT

E_PWDE_PWD 3

CHG_N

R190 NC/0/0402/1%

1 2

CH

G_

N

R1

12K/0402/1%

12

R5

68K/0402/1%

12

VIN

AFE_VPPG0_EN 3AFE_VPPG1_EN 3

TS

AFE_VPPG0_ENAFE_VPPG1_EN

R7 0/0402/1%

1 2

KA

D1

LED

AK

C98

22

uF

/06

03

/16

V/X

5R

21

VL

ED

AV

LE

DB

C101

22

uF

/06

03

/16

V/X

5R

21

EX

T_

Co

ntr

ol

AF

E_

VP

PG

1_

EN

AF

E_

VP

PG

0_

EN

AF

E_

VB

ST

_E

N

Z43 Hold1 1

Z44 Hold1 1

Z45 Hold1 1

AF

E_

VP

PG

0_

EN

1

Z46 Hold1 1

LDO_EN 3LDO_EN

AF

E_

VP

PG

1_

EN

1

Hold

EX

T_

Co

ntr

ol

1

EXT_Control

VL

ED

A

1

VL

ED

B

1

CHG_N 3CHG_N

E_INT

E_MISO

E_CLKE_CSN

E_MOSI

C261uF / 0402 / 6.3V / X7R

21

C99

22

uF

/06

03

/16

V/X

5R

21

C102

22

uF

/06

03

/16

V/X

5R

21

R22810K/0402/1%

12

KA

D3

LED

AK

LDO_EN

C108 10

uF

/ 04

02

/ 6.3

V / X

5R

21

R214

10

0K

/02

01

/1%

12

L2 2.2uH/1239AS-H-2R2M/25201 2

VDD18

C11 10

0n

F/5

0V

/X7

R/0

40

2

12

R215

10

0K

/02

01

/1%

12

R216

NC

/10

0K

/02

01

/1%

12

R217

10

0K

/02

01

/1%

12

R218

NC

/10

0K

/02

01

/1%

12

R219

NC

/10

0K

/02

01

/1%

12

R220

10

0K

/02

01

/1%

12

BAT

BAT

DVDD18

G_INT2 3

SW1SW KEY-YM061

132

4

G_SCL 3G_SDA 3

G_INT 3

SW1

G_INTG_INT2

BAT

G_SCLG_SDA

C12 10

0n

F/5

0V

/X7

R/0

40

2

12

M1P 1

M1N 1

M2P 1

VDD28 to RT1025

M2N 1

M2P

M3N 1

M3P 1 M3P

R235

10

0K

/02

01

/1%

12

M1P1

R203 0/0402/1%

1 2

TP1INT2

1G_INT2

R26100K/0201/1%

1 2

LDO

Charger

C16 2.2uF/6.3V/X5R/04021 2

Power Stage

HR_Sensor SFH7050G_Sensor

G_INT2

R193 NC/0/0402/1%

1 2 VLEDA

C18 2.2uF/6.3V/X5R/04021 2

VDD4.5 to PPG LED Green

AFE_VPPG0_EN

LEDB

INN_PPG

LEDA

INP_PPG

R15 1K/0402/1%1 2

RT1025_AVDD28

RT1025_DVDD18

For Testing

U7

RT1025/WLCSP

XTALOA7

XTALIB7

RSV4D7

VRLDE7

INN_ECGF7

INP_ECGG7

AVDD28H7

GNDA6

INTB1

RSV1C6

RSV5D6

GND_A0G3

INN_PPGH6

DVDD18A5

AFE_PWDB6

RSV0B5

INP_PPGG5

DVDDIOA4

RESETBA1 I2C_SELB4

GND_D1C5

GND_A1G6

VCMG4

VBGH4

SPI_CLK=SCLA3

SPI_MISOB3

GND_D0C3

GND_HV0G1

GND_HV1G2

GND_A2H3

SPI_CSN=SDAA2

SPI_MOSIE2

RSV2C2

TX1H2

RSV3B2

AVDD_HVC1

GND_HVD1

VLXE1

NCF1

TX2H1

GND_D2D2

XTALIXTALO

LHRHVRLD

E_RSTB

E_PWD

C21 2.2uF/6.3V/X5R/04021 2

X1

32.768KHz/TFX-02S-32

12

C1322/pF/0402/NPO2

1

C1522/pF/0402/NPO 2

1

C30

1u

F / 0

40

2 / 6

.3V

/ X7

R

21

DVDD18

XTALO

R12 100K/0201/1%

1 2

R13 100K/0201/1%

1 2

R14 100K/0201/1%

1 2FR

FL

C171uF / 0402 / 6.3V / X7R

21

R230 0/0402/1%

1 2

U6

BGM11S22F256GARESET_n

1

GND12

GND23

2G4RF_ANT_IN4

2G4RF_PORT5

GND36

PD97

PD108

PD119

PD

12

10

PD

13

11

PD

14

12

PD

15

13

PA

014

PA

115

PA

216

PA

317

PA

418

PA

519

PB

11

20

PB

12

21

PB

13

22

DNC123DNC224GND425V_BATT26GND527V_1V828GND629DNC330V_IOVDD31GND732PC633PC734PC835

PC

936

PC

10

37

PC

11

38

PF

039

PF

140

PF

241

PF

342

PF

443

PF

544

PF

645

PF

746

GN

D8

47

HF

XO

_IN

48

HF

XO

_O

UT

49

GN

D9

50

GND1051

GND1152

ANT_GND53

GND1254

GND1355

GND1456

E_

RS

TB

E_

CS

NE

_M

OS

I

SW

CL

KS

WD

IO

M2

N

M2

PE

_P

WD

R231 0/0402/1%

1 2

AFE_VBST

C23 2.2uF/6.3V/X5R/04021 2

RT1025_AVDD28

R233 0/0402/1%

1 2AVDD28RT1025_AVDD28

C3100nF/50V/X7R/0402

12

DVDD_MCU

R234 0/0402/1%

1 2DVDD18RT1025_DVDD18

DVDD_MCU

RESETn

DVDD_MCU

U2

NT1613A

B+1

B-2

VDD3

VM4

CO

UT

5

S26

S17

DO

UT

8

B-B-

XTALI

VDD 1

COUT 1

DOUT 1

BAT-

BAT+BAT

BAT1

11

22

Li-ion Protection

DVDD_SYS

BAT

DVDD_SYS

R204 10/0603/1%/0.25W1 2

G_SDAG_SCLG_INT

TP3 D6

1

DVDD_MCU

BV

R221 0/0402/1%

1 2

VIN

U16

RT5707WSC

SWA1

ENB1

VSEL1C1

VSEL2D1

VSEL3D2

VOUTC2

GNDB2

VINA2

R20150K/0402/1%

12

R1110K/0402/1%

12

U17

RT5707WSC

SWA1

ENB1

VSEL1C1

VSEL2D1

VSEL3D2

VOUTC2

GNDB2

VINA2

R191M/0402/1%

12

VIB

M3

P

M1

PM

3N

M1

N

SW

1L

DO

_E

N

C97

1u

F / 0

40

2 / 6

.3V

/ X7

R

21

C109 10

uF

/ 04

02

/ 6.3

V / X

5R

21

C110 10

uF

/ 04

02

/ 6.3

V / X

5R

21

C111 10

uF

/ 04

02

/ 6.3

V / X

5R

21

R7

91

00

K/0

20

1/1

%

12

DVDD_SYS DVDD_G_Sensor

R2230/0402/1%

12

VCM

R23 0/0402/1%

1 2

DVDD_G_Sensor

DVDD_G_Sensor

E_CLK

E_INTE_MISO

R8

01

00

K/0

20

1/1

%

12

R225 0/0402/1%

1 2

DVDD18

C112 10

uF

/ 04

02

/ 6.3

V / X

5R

21

C113 10

uF

/ 04

02

/ 6.3

V / X

5R

21

U15

RT9073A-33GQZ

VOUT1

GND2

EN3

VIN4

SG

ND

5

C105

1u

F / 0

40

2 / 6

.3V

/ X7

R

21

C106 1u

F / 0

40

2 / 6

.3V

/ X7

R

21

BAT

R206100K/0201/1%

12

U3

RT9527

VIN1

PGOOD_N2

CHG_N3

GND14

ISET5TIMER6TS7BAT8GND29

C24

1u

F / 0

40

2 / 6

.3V

/ X7

R

21

VDD33 to System

C22

1u

F / 0

40

2 / 6

.3V

/ X7

R

21

VL

ED

B

R226 NC/0/0402/1%

1 2

KA

D2

LED

AK

C114 10

uF

/ 04

02

/ 6.3

V / X

5R

21

R19810K/0402/1%

12

C20

33

0p

F /

04

02

/ 6

.3V

/

X7

R

21 C19

33pF / 0402 / 6.3V / X7R

21

C2533pF / 0402 / 6.3V / X7R

21

R17 62K/0402/1%

1 2

R18 62K/0402/1%

1 2

VIN 1VIN

AFE_VBST 1AFE_VBST

LH

RH

DVDD_SYS 1DVDD_SYS

AVDD28 1

U12

SFH7050

GC1

GA2

RA3

PA4

PC5 RC6

IA7

IC8

AVDD28

DVDD18 1

DVDD18

BLE STATUS

R227 0/0402/1%

1 2

VPPG 1

VPPG

VPPG

RESETn

DVDD_G_Sensor 1

SWDIOSWCLK

DVDD_G_Sensor

Z1

FK_1

1Z2

FK_1

1Z58

FK_1

1Z59

FK_1

1

U8

RT3001

SD

O1

SDA/SDI2

VDDIO3

NC

4

INT15

INT26

VDD7

GN

D8

GN

D9

CS

10

PS

11

SCL/SCK12

AFE_VPPG1_EN

G_INT

G_SCL

G_SDA

DVDD_MCU

DVDD_MCU 1

VPPG

RT1025_AVDD28 1

RT1025_AVDD28

RT1025_DVDD18 1

RT1025_DVDD18

M1N

M1P

LEDA

M2N

LEDA

M3N

LEDBINP_PPGINN_PPG

VBUS

BAT

TP17VIN_EKG_CON1

TP16VIP_EKG_CON1

TP18

VRLD_CON

1

R174 0/0402/1%

1 2

DVDD_SYS

FL

VRLD_CONFR

FL 2

VRLD_CON 2FR 2

FL

VRLD_CONFR

C104

1uF

/ 0402 / 6

.3V

/ X7R

21

E_CSNE_MISO

E_MISO 2E_MOSI 2

E_RSTB

E_MOSI

E_RSTB 2

E_CSN 2

E_PWD 2

E_INT 2

E_PWD

E_INTJP4

HEADER10X2

1 23 45 67 89 10

11 1213 1415 1617 1819 20

G_INT 2

G_INT2 2

G_SCL 2G_SDA 2

G_INT

G_INT2

G_SCLG_SDA

AFE_VPPG1_EN 2AFE_VPPG0_EN 2


E_CLK 2E_CLK

DVDD_SYS

EXT_Control 3

AFE_VBST_EN 2AFE_VBST_EN

EXT_Control

E_CLK G_INTLDO_EN 2

E_MOSILDO_EN

E_CSN

E_MISO

G_INT2

G_SCL

CHG_NCHG_N 2

G_SDA

E_INT


E_RSTBE_PWD

EXT_ControlAFE_VBST_EN

CHG_NLDO_EN

I/F

DVDD_SYS

ECG cable connector

USB3

USB

11

22

33

44

55

99

66

77 8

8

0.96" OLED

G_SDAG_SCL

DVDD_SYS

CON5JACK_CON/5P/EJ-3699M-GP

AUDIOJACK/5P/SMD/EJ-3699M-GP

1

2

3

5

4

JP2

NC/SIP-8P

11

22

33

44

55

66

77

88

D+D-

ID

D+1SIP-1P-SP1

ID2 SIP-1P-SP1

D-1 SIP-1P-SP1

VBUS

USB Micro-B



your power partner.


C8, C17, C22,

C24, C26, C30,

C97, C104,

C105, C106

10 C1005X5R0J105K050BB 1µF/6.3V/X5R C-0402 TDK

C13, C15 2 GRM1555C1H220FZ01D 22pF/NPO C-0402 Murata

C16, C18, C21,

C23 4 GRM155R61E225KE11D 2.2µF/6.3V/X5R C-0402 Murata

C19, C25 2 0402N330J500CT 33pF/6.3V/X7R C-0402 WALSIN

C20 1 0402B331K100 330pF/6.3V/X7R C-0402 WALSIN

C98, C99, C101,

C102 4 GRM188R60J226MEA0D 22µF/6.3V/X5R C-0603 Murata

C107, C108,

C109, C110,

C111, C112,

C113, C114

8 0402X106M100CT 10µF/6.3V/X5R C-0402 WALSIN

D1 1 LNL-191SUR Red LED LED_2P_RT1025 LIGH TOP

D2 1 LNL-190UB Blue LED LED_2P_RT1025 LIGH TOP

D3 1 LNL-190UW-4H White LED LED_2P_RT1025 LIGH TOP

ESD1, ESD2,

ESD3 3 ESD/D5V0L1B2S9-7 ESD R-0603 DIODES

L1, L2 2 DFE201610E-2R2M=P2 2.2µH/1239AS-H-

2R2M/2520 L-2-5X2-0 MuRata

NTC1 1 NCP15XH103F03RC NCP15X1-

H103F03RC R-0402 MuRata

PL1, PL2, PL3 3 WR06X000 PTL 0 L-0603 WALSIN

PL4 1 GBLM160808P-1R5M PL/GBLM160808P-

1R5M L-NR3015 GOTREND

R1 1 CR-02FL6---12K 12k/1% R-0402 Viking

R4, R15 2 WR04X1001FTL 1k/1% R-0402 WALSIN

R5 1 WR04X6802FTL 68k/1% R-0402 WALSIN

R7, R23, R174,

R201, R202,

R203, R221,

R223, R225,

R226, R227,

R230, R231,

R233, R234

15 WR04X000 PTL 0/1% R-0402 WALSIN

R8, R9 2 CR-02FL6---4K7 4.7k/1% R-0402 Viking

R11, R198, R228 3 WR04X1002FTL 10k/1% R-0402 WALSIN

R12, R13, R14,

R26, R79, R80,

R206, R207,

R209, R211,

R213, R214,

R215, R217,

R220, R235

16 WR02X1003FTL 100k/1% R-0201 WALSIN

R17, R18 2 WR04X6202FTL 62k/1% R-0402 WALSIN



your power partner.


R19 1 WR04X1004FTL 1M/1% R-0402 WALSIN



R204 1 WR06X000 PTL 0R R-0603 WALSIN

SW1 1 HTS 6601H TOUCH-BTN DIP-4P High-Tronics

USB3 1 UMMBF-051MGCB9-CF1066 USB Micro-B

Connector USB Micro-B Cherng Weei

U2 1 NT1613A-NQA-30-BJ Battery Protect IC QFN2X3_8L_0-5 Neotek

U3 1 RT9527GQW Charger IC WDFN-8L 2x2 Richtek

U6 1 BGM11S22F256GA BLE SiP BGM11S22F256GA SiLab

U7 1 RT1025WS ECG/PPG AFE IC WL-CSP-41B

3.10x3.48 (BS) Richtek

U8 1 RT3001GQL G-sensor LGA-12L 2x2 Richtek

U12 1 SFH7050 PPG LED & PD

Module SFH7050 OSRAM

U14 1 RT4813AGQUF 4.5V Boost IC UQFN-9L 2x2 (FC) Richtek

U15 1 RT9073A-33GQZ 3.3V LDO ZQFN-4L 1x1 Richtek

U16, U17 2 RT5707WSC 1.8V/2.8V Buck IC WL-CSP-8B 0.9x1.6

(BSC) Richtek

X1 1 DST-310S 32.768kHz/TFX-02S-

32 CRY-DST310S HARMONY



your power partner.

PCB Layout

Top View (1st layer)

PCB Layout—Inner Side (2nd Layer)



your power partner.

PCB Layout—Inner Side (3rd Layer)

Bottom View (4th Layer)



your power partner.

More Information

For more information, please find the related datasheet or application notes from Richtek website

http://www.richtek.com.

Important Notice for Richtek Evaluation Board

THIS DOCUMENT IS FOR REFERENCE ONLY, NOTHING CONTAINED IN THIS DOCUMENT SHALL BE CONSTRUED AS RICHTEK’S WARRANTY, EXPRESS

OR IMPLIED, UNDER CONTRACT, TORT OR STATUTORY, WITH RESPECT TO THE PRESENTATION HEREIN. IN NO EVENT SHALL RICHTEK BE LIABLE TO

BUYER OR USER FOR ANY AND ALL DAMAGES INCLUDING WITHOUT LIMITATION TO DIRECT, INDIRECT, SPECIAL, PUNITIVE OR CONSEQUENTIAL

DAMAGES.

http://www.richtek.com/

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