Related Manuals for unicore UM960eb
Summary of Contents for unicore UM960eb
- Page 1 用户手册 HARDWARE USER MANUAL WWW.UNICORECOMM.COM UM960eb & UM960Leb Evaluation Board Copyright© 2009-2023, Unicore Communications, Inc. Data subject to change without notice.
- Page 2 UM960eb & UM960Leb User Manual Revision History Version Revision History Date R1.0 First release Nov.,2023...
- Page 3 This manual does not represent, and in any case, shall not be construed as a commitments or warranty on the part of Unicore with respect to the fitness for a particular purpose/use, the accuracy, reliability and correctness of the information contained herein.
- Page 4 UM960eb & UM960Leb User Manual Foreword This manual provides information on the hardware composition and design of the UM960 series evaluation board (UM960eb and UM960Leb). Target Readers This document is written for technicians who are familiar with GNSS receivers.
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Page 5: Table Of Contents
Contents Product Overview ................... 1 Interfaces ....................4 Power Supply ..................6 3.3 V LDO P ....................7 OWER UPPLY 5 V DC/DC P ....................8 OWER UPPLY ....................... 9 ACKUP OWER UPPLY Antenna Circuit ..................11 ................11 NTENNA HORT ROTECTION IRCUIT... -
Page 6: Product Overview
5V DC/DC boost circuit, an antenna short protection circuit and peripheral interfaces. The schematics of the evaluation board can be used as the reference design for the UM960 and UM960L. Figure 1-1 to Figure 1-3 take UM960eb as an example to introduce, where the module is UM960. UM960eb... - Page 7 Figure 1-2 is UM960eb and it has UM960 on it. If you order UM960Leb, the module is UM960L. The appearance of UM960eb is as follows: Figure 1-2 Top View of UM960eb (1) Silkscreen: It marks the signals of the pins. The smaller holes around are used to mount the UM960 socket.
- Page 8 UM960eb & UM960Leb User Manual Figure 1-3 Bottom View of UM960eb (1) Ports used to connect jumpers (2) Anti-static design and heat dissipation with exposed copper (3) Debug ports (4) VCC power supply and LDO circuit (5) Dual-row pins as external interfaces...
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Page 9: Interfaces
2 Interfaces The dual-row 28 pins serve as the external interfaces of the evaluation board and the pin pitch is 2 mm. The interfaces can be directly connected to the J18 on Unicore HPL EVK-V5.0 board. CH71283V100 Interface Figure 2-1 UM960eb/UM960Leb Interface... - Page 10 UM960eb & UM960Leb User Manual Pin Name I/O Description TXD2 COM2 output, LVTTL RXD2 COM2 input, LVTTL Ground Corresponding to pin14 of UM960/UM960L; RTK_STAT/LAN_EN/RSV O Table 6-1 for more details Ground PPS output No connection inside No connection inside No connection inside...
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Page 11: Power Supply
3 Power Supply The power supply of the evaluation board 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 is 3.2V to 5V. -
Page 12: Ldo Power Supply
UM960eb & UM960Leb User Manual 3.3 V LDO Power Supply VCC outputs 3.3 V voltage after passing through the LDO circuit to provide power to the evaluation board. 080 5 TPS7A8101DRB 080 5 Vout=0.8*(1+16/5.1)=3.31V Dropout Voltage: 170mV@1A Output Rise Time... -
Page 13: Dc/Dc Power Supply
5 V DC/DC Power Supply VCC outputs 5 V voltage after passing through the DC/DC boost circuit to feed the antenna. Figure 3-4 5 V DC/DC Boost Circuit Notes: You can choose whether to use the 5 V power on the board to feed the antenna ... -
Page 14: Backup Power Supply
UM960eb & UM960Leb User Manual Backup Power Supply When you do not use the hot start function, connect V_BCKP to VCC. Do not connect it to ground or leave it floating. When using the hot start function of the module UM960, you need to provide backup power for the module. - Page 15 resistor should be added, as the R58 shows in Figure 3-5. V_BCKP can also be powered through the test point TP10. Removing R59, connecting a power supply wire at TP10 and a ground wire at TP7, you can use an external power to supply V_BCKP.
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Page 16: Antenna Circuit
UM960eb & UM960Leb User Manual 4 Antenna Circuit Antenna Short Protection Circuit The antenna short protection circuit consists of a load management chip and peripheral circuits. 5 V DC/DC circuit output feeds the antenna via the chip. When the antenna current is larger than 100 mA, the circuit triggers a short protection and FLAGB gives a low level indication. -
Page 17: Antenna Feed Circuit
Antenna Feed Circuit The antenna feed circuit consists of the anti-reverse current design, anti-surge design, filter inductors, and ESD protection. Removing R50 and soldering R52 or R51, the antenna short protection circuit is bypassed. Then you can choose VCC_RF or 5 V DC/DC circuit output directly to feed the antenna. -
Page 18: Led Indicators
UM960eb & UM960Leb User Manual 5 LED Indicators There are LED indicators on the evaluation board to indicate the working status of each functional unit. Figure 5-1 LED Indicators Table 5-1 Description of the LED Status LED Indicator Color Description Power (5V or 3.3V) -
Page 19: Um960 Series Peripheral Design
Figure 5-2 Markings on the Right of the LED Indicators 6 UM960 Series Peripheral Design TVS anti-surge protection is added at the input of the module. ESD protection is added at all pins. Use large and small VCC filter capacitors together, with a total capacitance greater ... - Page 20 UM960eb & UM960Leb User Manual Table 6-1 UM960/UM960L Pin14 Description Module Pin14 Description RTK_STAT: High level, RTK Fix; Low level, RTK No Fix LAN_EN: High level, enable external LNA; UM960 RTK_STAT/LNA_EN Low level, disable external LNA; Note: The pin function is configured by protocol.
- Page 21 UM960 080 5 Figure 6-1 UM960 Peripheral Design UM960 Series Peripheral Design UC-08-M34 EN R1.0...
- Page 22 UM960eb & UM960Leb User Manual Silkscreen markings are printed around the module to identify the resistors, which is convenient for measurement. Figure 6-2 UM960 Peripheral Circuit The GND pads at the bottom of the module should be grounded to ensure heat dissipation.
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Page 23: Debug Support
7 Debug Support As mentioned above, TP1 and TP10 can be used to connect an external power to supply VCCIN and V_BCKP and to measure the supply voltage and current. TP2, TP4, TP5, TP6 and TP8 are used for internal debugging, of which TP6 and TP8 ... -
Page 24: Appendix
Appendix The schematics of UM960 and UM960L are almost the same except the peripheral design of pin14 (see Chapter 6) and the corresponding J4 pin21. The appendix only gives an introduction of UM960eb as a reference. UC-08-M34 EN R1.0 Appendix... - Page 25 UM960eb CH71283V100 LD O 双 COM1 排 5V升压 插 COM2 双 针 排 COM3 插 天线短 针 路保护 电路 EVENT UM960 RSTN ANT_IN VB CKP Interface LEDs Function Diagram Block 080 5 NFM21PC104R1E3D TPS7A8101DRB 080 5 UM960eb-PCB-V1R0 VIN operation range:3.2V~5V Vout=0.8*(1+16/5.1)=3.31V...
- Page 26 UM960eb & UM960Leb User Manual FPF2004 Debug1 Ant Bias Debug2 Operating Voltage:1.8V~5.5V Vin=3.3V Vout=3.0V Debug3 Current Limit Min=100mA Current Limit Typ=150mA Current Limit Max=200mA When Current 100~200mA,FLAGB=1'b0; Debug4 UM960 UM960 080 5 UM960 Module Title Title Title UM960eb UM960eb UM960eb...
- Page 27 Assembly Top of UM960eb Appendix UC-08-M34 EN R1.0...
- Page 28 UM960eb & UM960Leb User Manual Assembly Bottom of UM960eb UC-08-M34 EN R1.0 Appendix...
- Page 29 和芯星通科技（北京）有限公司 Unicore Communications, Inc. 北京市海淀区丰贤东路 7 号北斗星通大厦三层 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 www.unicorecomm.com...