unicore UFirebird II Reference Design Download Page 11

   

6   

Recommended BOM 

UC-06-C21 EN R1.0 

3

 

Recommended BOM   

Table 3-1 Recommended BOM 

Category  Description   

Type 

Manufacturer 

Capacitor    0402 surface mount 

capacitor 
10 μF, ± 20%, X5R, 6.3 V 

CC0402MRX5R5BB106 

YAGEO 

Capacitor  0201 surface mount 

capacitor 
1 μF, ± 20%, X6S, 6.3 V 

GRM033C80J105ME05D 

Murata 

Capacitor  0201 surface mount 

capacitor 
100 nF, ± 10%, X7S, 10 V 

C0603X7S1A104K030BC 

TDK 

Capacitor  0201 surface mount 

capacitor 
100 pF, ± 10%, X7R, 25 V 

CC0201KRX7R8BB101 

YAGEO 

Capacitor  0201 surface mount 

capacitor 
10 pF, ± 2%, COG, 50 V 

GRM0335C1H100GA01D 

Murata 

TVS 

ESD protective diode 
DFN0603-2L   
1100 W ± 18 kV 

JEB05UCDS-AH 

JIEJIE 
MICROELECTR
ONICS CO. , 
Ltd 

Ferrite 
Bead 

Ferrite Bead 
BLM15AG221SN1D 

BLM15AG221SN1D 

Murata 

Inductor    Chip inductor: 1 μH   

DC resistor: 300 mΩ   
Maximum current: 0.7A   
Tolerance: ± 20%   
Size: 1.6 mm ×  0.8 mm ×  
0.95 mm 

MLP1608V1R0BT0S1 

TDK 

Resistor    Surface Mount 

0 Ω, 1/16 W, ± 5%, 0402 

RC0402JR-070RL 

YAGEO 

Resistor 

Chip resistor   
0 Ω, 1/20W, ± 1%, 0201 

RC0201FR-070RL 

YAGEO 

Resistor 

Chip resistor   
10 kΩ, 1/16 W, ± 5%, 0402 

RC0402JR-0710KL 

YAGEO 

Resistor 

Chip resistor   
10 kΩ, 1/20 W, ± 1%, 0201 

RC0201FR-0710KL 

YAGEO 

Resistor 

Chip resistor   
4.7 kΩ, 1/16 W, ± 5%, 0402 

RC0402JR-074K7L 

YAGEO 

Summary of Contents for UFirebird II

Page 1: ...WWW UNICORECOMM COM Copyright 2009 2023 Unicore Communications Inc Data subject to change without notice UFirebird II UC6580 Dual frequency GNSS Positioning Chip HARDWARE REFERENCE DESIGN...

Page 2: ...UC6580 Hardware Reference Design i Revision History Version Revision History Date R1 0 First release Sep 2023...

Page 3: ...mplied by estoppel or any other form the granting or transferring of Unicore rights and or interests including but not limited to the aforementioned trademark rights in whole or in part Disclaimer The...

Page 4: ...are Reference Design iii Foreword This document gives the hardware reference design of the chip UC6580 from Unicore Target Readers This document applies to technicians who possess the expertise on GNS...

Page 5: ...I Contents 1 Reference Design 1 1 1 LDO Mode 1 1 2 DC DC Mode 2 2 Attention 3 2 1 Power 3 2 2 Reset Signal 4 2 3 RTC 4 2 4 TCXO 5 3 Recommended BOM 6 Appendix Simplest Design to Replace UC6226 8...

Page 6: ...ernally Connect LNA and SAW externally Use the UART interfaces to communicate Lower cost but higher power consumption RF Short 50ohm Line TCXO VBCKP 1 7V 3 6V VMAIN 2 7V 3 6V V_DET 2 7V 3 6V LDO_RE T...

Page 7: ...tor comparing with LDO mode RF Short 50ohm Line TCXO V_CORE LDO_X VMAIN DCDC_OUT LDO_RE T LDO_X VDD_ANT LDO_C LDO_EX VMAIN VMAIN V_DE T V_BCKP VBCKP 1 7V 3 6V VMAIN 2 7V 3 6V V_DET 2 7V 3 6V Figure 1...

Page 8: ...MAIN initial level when power on should be less than 0 4 V The VMAIN ramp when power on should be monotonic without plateaus The voltages of undershoot and ringing should be within 5 VMAIN VMAIN power...

Page 9: ...ck signal In this situation make sure that the signal amplitude is less than 1 98 V otherwise it may cause damage to the chip In addition to the general rules of RTC layout and routing you should pay...

Page 10: ...m frequency stability 5 ppb s Special attentions should be paid to the layout and routing of TCXO in addition to the general rules It is recommended to maintain copper void for the layer where TCXO is...

Page 11: ...urface mount capacitor 10 pF 2 COG 50 V GRM0335C1H100GA01D Murata TVS ESD protective diode DFN0603 2L 1100 W 18 kV JEB05UCDS AH JIEJIE MICROELECTR ONICS CO Ltd Ferrite Bead Ferrite Bead BLM15AG221SN1D...

Page 12: ...5 0402 RC0402JR 0733RL YAGEO LNA High gain dual band LNA LGA 6 pin MXDLN14TP MAXSCEND SAW 1 5 mm 1 1 mm 1166 MHz to 1187 MHz 1559 MHz to 1606 MHz L1 2 4 dB Max L5 2 0 dB Max L1 50 MHz L5 20 MHz MXDFD...

Page 13: ...placement You can design your circuits according to Figure 0 1 and Table 0 1 Make sure that DCDC_IN and VDD_IO use the same power supply and note that you need to adjust the value of the DCDC output i...

Page 14: ...ating or connect a 1 F capacitor externally Partially compatible 9 NC VDD_ANT UC6580 can be floating or connect a 1 F capacitor externally Partially compatible 10 PIO18 LDO_RET UC6580 connects a 1 F c...

Page 15: ...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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