UNICORECOMM UM982-EB Скачать руководство пользователя страница 23

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UM982 Module

Ant1 Bias

Ant2 Bias

0805

Debug1

Ant1

Ant2

Debug2

Debug3

Debug4

PIN39

PIN40

PIN38

RSV#42

PIN42

PIN48

PIN47

PIN46

PIN38

PIN39

PIN40

PIN05

PIN11

PIN06

PIN07

PIN08

PIN09

PIN10

PIN11

PIN12

PIN13

PIN14

PIN16

PIN17

PIN18

PIN15

PIN16

PIN17

PIN18

PIN19

PIN20

PIN21

PIN22

PIN25

PIN33

PIN32

PIN31

PIN30

PIN29

PIN28

PIN27

PIN26

ANT1_IN

PIN05

PIN06

PIN07

PIN19

PIN08

PIN20

PIN21

PIN22

VCCIN

PIN25

PIN26

PIN27

PIN09

PIN28

PIN29

PIN30

PIN31

PIN32

PIN33

ANT2_IN

PIN10

PIN12

PIN13

PIN14

PIN15

PIN44

PIN42

RSV#44

PIN46

PIN47

PIN48

ANT2_IN

ANT1_IN1

ANT2_IN1

VCCIN

ANT1_IN

ANT1_BIAS2

ANT1_BIAS1

ANT2_BIAS1

ANT2_BIAS2

ANT1_BIAS

ANT2_BIAS

GND

3.3V

3.3V
3.3V

3.3V

3.3V
3.3V

SCL

SDA

SPIS_CLK

SPIS_MISO

SPIS_MOSI

SPIS_CSN

SPIS_SDRY

SCL

SDA

SCL

SDA

BIF#25

BIF#26

EVENT

RXD3

V_BCKP

RSTN

RXD1

BIF#26

RSV#29

RXD2

RSV#12

BIF#25

ANT2_IN

ANT1_IN

PPS

TXD3

TXD1

RSV#31

TXD2

ERR_STAT

PVT_STAT

RTK_STAT

FLAGB1

ANT2_IN

FLAGB2

ANT1_IN

VCCIN

RSV#12

Title

Size

Document Number

R e v

Date:

Sheet

o f

UM982 Module, Ant Bias, Debug Interface

V1.0

UM982eb

Friday, May 20, 2022

Unicore Communications,Inc

Title

Size

Document Number

R e v

Date:

Sheet

o f

UM982 Module, Ant Bias, Debug Interface

V1.0

UM982eb

Friday, May 20, 2022

Unicore Communications,Inc

Title

Size

Document Number

R e v

Date:

Sheet

o f

UM982 Module, Ant Bias, Debug Interface

V1.0

UM982eb

Friday, May 20, 2022

Unicore Communications,Inc

D41

R67

L5
22uH

R27

100nF

R54

D55

D51

C25
100pF

L4
68nH

R88

R19

TP3

C32

100nF

D39

R63

D40

D23

R40

D42

C17

100pF

C24

D50

R45

R65

R13

100pF

100nF

R34

D49

5.1k

R35

D34

R17

R83

5.1k

D16
MBR120LSFT1G

R68

D25

D43

D56

U1A

UM982

GND#01

ANT1_IN

GND#03

GND#04

V_BCKP

SPIS_CSN

SPIS_MOSI

SPIS_CLK

SPIS_MISO

SPIS_SDRY

RSV#11

RSV#12

RSV#13

VCCIN#24

VCCIN#23

SDA

SCL

TXD2

RXD2

TXD1

RXD1

RTK_STAT

PVT_STAT

ERR_STAT

GND#37

ANT2_IN

GND#35

GND#34

EVENT

RSV#31

PPS

RSV#29

RXD3

TXD3

BIF#26

BIF#25

RSV#38

RSV#39

RSV#40

GND#41

RSV#42

GND#43

RSV#44

GND#45

RSV#46

RSV#47

RSV#48

RESET_N

R77

D27

C34

100nF

D57

TP4

D44

10uF

TP1

R42

D29

R56

D37

R75

5.1k

10uF

D45

R44

R52

10uF

TP6

D52

C35

100nF

D31

L1
22uH

FPF2004

VOUT

GND

FLAGB

VIN

R51

R18

C22

R84

100

TP9

D18

R76

5.1k

R14

R16

D22

C11
100pF

TP5

C23

C33

100pF

C36

10uF

D19

PESD5V0F1BL,315

D63

SMF5.0A

R79

5.1k

D33

R20

R21

L2
68nH

D46

R64

R28

C13

100nF

R31

5.1k

C21

R62

D21

D24

R15

TP2

R48

TP8

D38

D53

D54

R66

100nF

FPF2004

VOUT

GND

FLAGB

VIN

D62
MBR120LSFT1G

D26

R69

R29

TP7

R81

5.1k

D28

D17

SMF5.0A

R47

D36

D48

10uF

R55

D32

D30

R39

D58

R49

D35

R80

U1B UM982

Y32

Y33

Y34

Y35

Y36

Y10

Y11

Y12

Y13

Y14

Y15

Y16

Y17

Y18

Y19

Y20

Y21

Y22

Y23

Y24

Y25

Y26

Y27

Y28

Y29

Y30

Y31

Y37

Y38

Y39

D59

PESD5V0F1BL,315

D47

R37

R70

D60

D15

SMF5.0A

Содержание UM982-EB

Страница 2: ...erial referred to in this manual collectively Unicore Trademarks This manual or any part of it shall not be deemed as either expressly implied by estoppel or any other form the granting or transferrin...

Страница 3: ...Manual ii Should you purchase our product and encounter any inconsistency please contact us or our local authorized distributor for the most up to date version of this manual along with any addenda o...

Страница 4: ...Foreword This manual provides information on the hardware composition and design of the UM982 evaluation board EB Target Readers This document is written for technicians who are familiar with GNSS mod...

Страница 5: ...3 Power Supply 6 3 1 3 3V LDO Power Supply 7 3 2 5V DC DC Power Supply 8 3 3 Backup Power Supply 9 4 Antenna circuit 10 4 1 Antenna Short Protection Circuit 10 4 2 Antenna Feed Circuit 11 5 LED Indica...

Страница 6: ...1 SPIS COM2 RSTN BAT Dual row pins Dual row pins VCC 5V DC DC Antenna protection circuit 5V LDO 3V3 Antenna protection circuit ANT_IN Figure 1 1 UM982 EB Block Diagram 1 Product Overview UM982 EB is t...

Страница 7: ...82 socket The printing adopts exposed copper to ensure the flatness of the surface 2 UM982 module The pin pads are designed long which is convenient for soldering testing and debugging For detailed pa...

Страница 8: ...M982 EB 1 Antenna short protection circuit 2 Anti static design and heat dissipation with exposed copper 3 VCC power supply and LDO circuit 4 Backup battery 5 5 V DC DC boost circuit for antenna feedi...

Страница 9: ...erfaces Table 2 1 UM982 EB Pin Description No Pin Name I O Description 1 SPIS_MOSI I Master Out Slave In This pin is used to receive data in slave mode 2 SPIS_CSN I Chip select pin for SPI slave 3 SPI...

Страница 10: ...OM1 input LVTTL 17 GND Ground 18 TXD2 O COM2 output LVTTL 19 RXD2 I COM2 input LVTTL 20 GND Ground 21 PVT_STAT O PVT status active high High level when positioning and low level when not positioning 2...

Страница 11: ...UM982 EB is input from the VIN pin passing through a circuit with surge protection and filter capacitors to provide power for the 3 3 V LDO circuit and 5 V DC DC boost circuit The input range of VIN...

Страница 12: ...Circuit Notes The rated output current of LDO should be more than twice the maximum operating current of UM982 R32 is a series resistor placed at the input of the LDO which is used for debugging When...

Страница 13: ...hether to use the 5 V power on the board to feed the antenna according to the antenna type R59 and R74 are series resistors connected to the DC DC circuit at the input and output which are used for de...

Страница 14: ...the backup battery should be designed to prevent reverse current to ensure that the battery only supplies power to V_BCKP and the current does not flow back into the 3 3 V power domain as the D64 sho...

Страница 15: ...power source supplies the antenna after passing through the load management chip When the current of the antenna circuit is greater than 100 mA it will trigger short circuit protection and FLAGB will...

Страница 16: ...it consists of the anti reverse current design anti surge design filter inductors and ESD protection Removing R77 and R6 and soldering R79 and R8 you can directly use the 5 V power to supply the anten...

Страница 17: ...D Indicators UC 08 M31 EN P1 0 3 Figure 4 4 Antenna Feed Circuit on the Bottom of UM982 EB 5 LED Indicators There are LED indicators on UM982 EB to indicate the working status of each functional unit...

Страница 18: ...R Red Light on when failing self test UART Green Blinking when UART is working The silkscreen markings on the right of the LED indicators identify the corresponding function as shown in the figure bel...

Страница 19: ...e at TP1 and a ground wire at TP3 as shown in Figure 7 1 you can use an external power to supply the module This method can be used to measure the input voltage and current of UM982 0805 U1A UM982 Fig...

Страница 20: ...l power to supply VCCIN and V_BCKP and to measure the supply voltage and current TP2 TP4 TP6 and TP8 are used for internal debugging of which TP6 and TP8 can be used to debug I2 C J1 and J2 are used f...

Страница 21: ...Debug3 Debug4 J2 NC J1 NC Figure 7 1 Debug Ports for the UM982 Module The silkscreen markings on the right of the test points are arranged in order to identify the function of each port Figure 7 2 Th...

Страница 22: ...f Interface Power LEDs V1 0 UM982eb B 3 5 Friday May 20 2022 Unicore Communications Inc Title Size Document Number Rev Date Sheet o f Interface Power LEDs V1 0 UM982eb B 3 5 Friday May 20 2022 Unicore...

Страница 23: ...ore Communications Inc D41 R67 0 L5 22uH R27 0 C1 100nF R54 NC D55 D51 C25 100pF L4 68nH R88 0 R19 0 R8 NC TP3 C32 100nF D39 R63 33 D40 D23 R40 NC D42 C17 100pF C24 NC D50 R3 NC R45 NC R65 NC R13 33 C...

Страница 24: ...Assembly Top of UM982 EB...

Страница 25: ...Assembly Bottom of UM982 EB...

Страница 26: ...Unicore Communications Inc 7 F3 No 7 Fengxian East Road Haidian Beijing P R China 100094 www unicorecomm com Phone 86 10 69939800 Fax 86 10 69939888 info unicorecomm com...

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