unicore UM220-IV L Installation And Operation User Manual Download | Manualshive

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UM220-IV L User Manual

UC-00-M15 EN R1.4

Technical Specifications

11

3.4

Pin Definition

Figure 3- 2 UM220-IV L Pin Assignment

Table 3- 4 Pin Definition

No Name

I/O

Electrical Level

Description

1

TXD2

O

LVTTL

COM2 is for data transmission. Firmware
upgrade is not supported.
Leave this pin floating if idle.

2

RXD2

I

LVTTL

COM2 is for data transmission. Firmware
upgrade is not supported.
Leave this pin floating if idle.

3

TXD1

O

LVTTL

COM1 is for data transmission. Firmware
upgrade is supported.

4

RXD1

I

LVTTL

COM1 is for data transmission. Firmware
upgrade is supported.

5

NC

6

VCC

I

3.0V~3.6V

Power supply

7

GND

Ground

8

VCC_OUT

O

3.0V~3.6V

Power supply output, leave this pin
floating if idle

9

NC

10 nRESET

I

LVTTL

External Reset Pin, low active

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Summary of Contents for UM220-IV L

Page 1: ...INSTALLATION AND OPERATION USER MANUAL WWW UNICORECOMM COM Copyright 2009 2023 Unicore Communications Inc Data subject to change without notice UM220 IV L Single Frequency Multi GNSS Timing Module...

Page 2: ...t and such rights may evolve and be approved registered or granted from the whole information aforesaid or any part s of it or any combination of those parts Unicore holds the trademarks of UNICORECOM...

Page 3: ...criptions features and user guide in this manual are subject to change by Unicore at any time without prior notice which may not be completely consistent with such information of the specific product...

Page 4: ...the product features and information of the hardware design installation specification and the use of UNICORECOMM UM220 IV L module Audience This manual is created for the technical personnel who pos...

Page 5: ...7 2 1 Prerequisites 7 2 2 Installation 8 3 Technical Specifications 9 3 1 Electrical Specifications 9 3 2 Operating Conditions 9 3 3 Mechanical Specifications 10 3 4 Pin Definition 11 3 5 PCB Packagi...

Page 6: ...II 4 6 Layout Recommendation 22 5 Packaging 23 5 1 Product Labeling 23 5 2 Packaging Description 23 6 Soldering and Disassembly 25 6 1 Disassembly 25 6 2 Clean 25 6 3 Reflow Soldering 25...

Page 7: ...he positioning speed through the assistant data service of UNICORECOMM in the scenario of networking With the combined function of filter linear amplifier and antenna protection and optimized RF archi...

Page 8: ...essional Automotive GPS QZSS BDS GLONASS Galileo 3 0V UART1 UART2 Antenna Detection 1PPS Antenna Feed Built in flash Update Rate AGNSS DGNSS UM220 IV L 17x22 mm 1 Hz 1 3 Block Diagram GNSS IC SAW LNA...

Page 9: ...te 4800 115200 bps GNSS Performance Constellations BDS B1 1561 098MHZ GPS L1 1575 42MHZ GLONASS L1OF 1602MHZ Galileo E1 B C 1575 42MHZ TTFF2 Time to First Fix Cold Start 28s Hot Start 1s Reacquisition...

Page 10: ...tatic scenes In this mode users are required to input the exact position of receiver antenna center through CFGTM manually which are used by UM220 IV L module to calculate the distance between the ant...

Page 11: ...adjustable and can be configured and queried through CFGTP TIMTP is used to describe the related 1PPS information including the corresponding time and time accuracy indicators 1 7 UART Two UART inter...

Page 12: ...quickly in weak signal environments UM220 IV L also integrates the 32k crystal to maintain the RTC clock When the main power supply is removed the normal operation of the RTC can be maintained by prov...

Page 13: ...s before opening antistatic plastic boxes Perform the steps in section 2 2 Installation in the correct order Electrostatic discharge ESD may cause a damage to the device All operations referred to in...

Page 14: ...V L EVK suite and take out the evaluation board Step 3 Select the GNSS antenna with the appropriate gain the system frequency supported by the antenna should be consistent with the module fix it in th...

Page 15: ...ature Tstg 40 85 Maximum ESD Stress VESD HBM 500 V 3 2 Operating Conditions Table 3 2 Operating Conditions Parameter Symbol Min Typical Value Max Units Condition Power Supply Voltage VCC 3 0 3 3 3 6 V...

Page 16: ...ecifications Table 3 3 Dimensions Parameter Min mm Typical Value mm Max mm A 22 1 22 4 23 0 B 16 9 17 0 17 1 C 2 1 2 4 2 7 D 2 45 2 55 2 85 E 1 0 1 1 1 2 F 3 7 3 8 3 9 G 2 75 2 85 3 15 H 0 82 K 0 7 0...

Page 17: ...Leave this pin floating if idle 2 RXD2 I LVTTL COM2 is for data transmission Firmware upgrade is not supported Leave this pin floating if idle 3 TXD1 O LVTTL COM1 is for data transmission Firmware up...

Page 18: ...the hot start function connect V_BCKP to VCC Do NOT leave it floating or connect it to ground 12 NC 13 GND Ground 14 GND Ground 15 GND Ground 16 RF_IN I GNSS signal input 17 GND Ground 18 VCC_RF O 3 0...

Page 19: ...4 Technical Specifications 13 3 5 PCB Packaging Figure 3 3 UM220 IV L Recommended PCB Packaging unit mm in brackets mil When designing PCB solder mask make sure that the area under UM220 IV l module...

Page 20: ...than 500 ms 4 1 2 Backup Supply V_BCKP If the hot start function is needed users should supply backup power to the module The voltage range of V_BCKP is 1 65 V 3 6 V Notes The V_BCKP initial level wh...

Page 21: ...IN GND Antenna Figure 4 1 UM220 IV L Passive Antenna Solution To improve the performance of RF analog front end a low noise amplifier LNA can be added behind the passive antenna UM220 IV L module prov...

Page 22: ...proving the system performance The 3 3V Power Supply VCC_RF provided by the UM220 IV l module can be used to power the antenna directly if the function of detecting the state of the antenna inside the...

Page 23: ...damage or other Electrical Over Stress EOS When the working voltage of the active antenna is not 3 3V the antenna can be powered by the external power supply If the antenna power supply and the module...

Page 24: ...switch If the V_ANT pin is directly connected without a serial resistor the module will be damaged when the antenna is short circuited The internal switch is turned off by default which can be switch...

Page 25: ...the antenna can be powered by connecting an external power supply with a 10 serial resistor to the V_ANT pin Since this power supply is directly connected to the RF_IN pin of the module this power sup...

Page 26: ...ated value the module determines that the antenna is open circuit The resistance of the series resistor R1 can be adjusted according to the antenna working current Coaxial Aerial Cable R1 10 R2 560 R3...

Page 27: ...is powered on To prevent the leakage power ensure that the IO port connected to the module is in high impedance or low level when the module is not powered on 4 4 RESET Time Sequence There is a reset...

Page 28: ...e note with the antenna impedance matching and the circuit is short and smooth try to avoid acute angles Connect the RF signal to the antenna and make sure the 50 impedance match on the circuit Antenn...

Page 29: ...aluminum foil antistatic bags with a desiccant inside to prevent moisture When using reflow welding process to weld modules please strictly comply with IPC standard to conduct humidity control on modu...

Page 30: ...al diameter 330mm internal diameter 100mm width 24mm thickness 2 0mm Carrier tape Space between 20mm UM220 IV L module is rated at MSL level 3 refer to the relevant IPC JEDEC standards for baking requ...

Page 31: ...le the module is blown off by a hot air gun which may lead to module damage 6 2 Clean Do NOT use alcohol or other organic solvents to clean it may lead to flux residues into the shielding shell causin...

Page 32: ...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 www unicorecomm com...

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