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ML7404  Family LSIs   

Hardware Design Manual 

FEXL7404DG-03

 

 

 

 

Notes 

1)

 

The information contained herein is subject to change without notice.   

2)

 

Although LAPIS Semiconductor is continuously working to improve product reliability and quality, 
semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal 
injury or fire arising from failure,    please take safety measures such as complying with the derating characteristics, 
implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. LAPIS 
Semiconductor shall have no responsibility for any damages arising out of the use of our Products beyond the 
rating specified by LAPIS Semiconductor. 

3)

 

Examples of application circuits, circuit constants and any other information contained herein are provided only to 
illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account 
when designing circuits for mass production. 

4)

 

The technical information specified herein is intended only to show the typical functions of the Products and 
examples of application circuits for the Products.    No license, expressly or implied, is granted hereby under any 
intellectual property rights or other rights of LAPIS Semiconductor or any third party with respect to the 
information contained in this document; therefore LAPIS Semiconductor shall have no responsibility whatsoever 
for any dispute, concerning such rights owned by third parties, arising out of the use of such technical information. 

5)

 

The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer 
systems, gaming/entertainment sets) as well as the applications indicated in this document. 

6)

 

The Products specified in this document are not designed to be radiation tolerant. 

7)

 

For use of our Products in applications requiring a high degree of reliability (as exemplified below), please 
contact and consult with a LAPIS Semiconductor representative: transportation equipment (i.e. cars, ships, trains), 
primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, 
solar cells, and power transmission systems. 

8)

 

Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear 
power control systems, and submarine repeaters.   

9)

 

LAPIS Semiconductor shall have no responsibility for any damages or injury arising from non-compliance with the 
recommended usage conditions and specifications contained herein. 

10)

 

LAPIS Semiconductor has used reasonable care to ensure  the accuracy of the information contained in this 
document. However, LAPIS Semiconductor does not warrant that  such information is error-free and LAPIS 
Semiconductor shall have no responsibility for any damages arising from any inaccuracy or misprint of such 
information. 

11)

 

Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS 
Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. LAPIS 
Semiconductor shall have no responsibility for any damages or losses resulting non-compliance 
with any applicable laws or regulations. 

12)

 

When providing our Products and technologies contained in this document to other countries, you must abide by 
the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation 
the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act. 

13)

 

This document, in part or in whole, may not be reprinted or reproduced without prior consent of LAPIS 
Semiconductor. 

 

Copyright 2018 LAPIS Semiconductor Co., Ltd. 

 

 

 

2-4-8 Shinyokohama, Kouhoku-ku, 

Yokohama 222-8575, Japan 

http://www.lapis-semi.com/en/ 

 

Summary of Contents for LAPIS Semiconductor ML7404 Series

Page 1: ...chnology and LAPIS Technology succeeded LAPIS Semiconductor s LSI business Therefore all references to LAPIS Semiconductor Co Ltd LAPIS Semiconductor and or LAPIS in this document shall be replaced wi...

Page 2: ...ML7404 Family LSIs Hardware Design Manual Issue Date Oct 5th 2018 FEXL7404DG 03...

Page 3: ...re not designed to be radiation tolerant 7 For use of our Products in applications requiring a high degree of reliability as exemplified below please contact and consult with a LAPIS Semiconductor rep...

Page 4: ...g ML7404 family devices Hereafter ML7404 And also contains the measurement conditions and example of measurement results of RF characteristics Target product ML7404 The following related manual is ava...

Page 5: ...k lowercase 103 1000 Milli m 10 3 Micro 10 6 Nano n 10 9 Second s lowercase Second Terminology H level Signal level on the high voltage side indicates the voltage level of VIH and VOH as defined in el...

Page 6: ...T ML7404 5 2 3 FREQUENCY TOLERANCE OF INPUT CLOCK 5 3 PLL LOOP FILTER 7 4 VCO 8 4 1 ADJUSTING COMPONENT VALUES FOR VCO TANK 9 4 2 NOTE ON THE VCO TANK CIRCUIT 10 5 RF MATCHING COMPONENT VALUES 11 5 1...

Page 7: ...ply voltage for the PA_OUT pin 20 should be provided the DC bias through the inductor L3 REG_PA 21 VDD_PA 22 VDD_REG 1 Including backside GND GND REG_OUT 3 PA_OUT 20 VBG 2 PA VDD REG_CORE 4 VB_EXT 31...

Page 8: ...an LSI pin as possible 3 The smaller capacitor should be closer to an LSI pin than other capacitors 4 VDDIO 9 VDD_PA 22 VDD_REG 1 pins connected to the VDD share the trace 5 A 1 F decoupling capacito...

Page 9: ...to evaluate the matching component values on the assembled board The following tables show the matching component values with LAPIS Semiconductor RF board as reference Table 2 1 1 Representative matc...

Page 10: ...s possible to the XIN 5 and the XOUT 6 pins to suppress parasitic LCR and stabilize the oscillator 3 Do not place the crystal oscillator circuit across other signal lines 4 Do not trace signal lines w...

Page 11: ...rance of reference clock Use case Unit 1 2 3 4 5 6 7 Sigfox Yes Yes Yes No Yes No No IEEE802 15 4k Yes Yes No Yes No Yes No IEEE802 15 4g ARIB STD T 108 Yes No Yes Yes No No Yes Recommended clock sour...

Page 12: ...ensating initial frequency tolerance is shown below In addition for details refer to the LSI Adjustment items and Adjustment method TRX Frequency Adjustment of data sheet FEDL7404 0X START END TX_ON i...

Page 13: ...ype so there is low accuracy and non linear temperature characteristics In order to prevent noise the loop filter components C3 R3 and C2 should be placed as close to the LP 26 pin as possible recomme...

Page 14: ...ML7404 And the C will be the sum of the capacitor C1 the line capacitor of the PCB and the internal capacitor including calibration capacitor of the ML7404 Table 4 1 shows the typical value of interna...

Page 15: ...e Note In order to lock the PLL the VCO_CAL value is required to be in the range from 1 to 126 decimal under all conditions The frequency range that PLL can lock VCO phase noise and the temperature fe...

Page 16: ...be careful the followings 2 1 As shown in the Figure 4 2 2 VCO tank inductor L1 and PA choke inductor L3 should be placed so that their positional relationship becomes the 90 degrees to avoid their c...

Page 17: ...8 4 9 j10 1 2 0 j11 0 11 5 j204 3 868MHz 43 6 j7 6 63 2 j3 4 204 3 j92 1 10 2 j132 2 920MHz 48 2 j8 8 73 0 j14 1 259 3 j130 3 10 6 j130 3 Note These component values appropriate for use on the LAPIS...

Page 18: ...MAX Nominal Impedance 50 Inductors Use inductors with high Q It is recommended to use LQW15AN series manufactured by Murata Manufacturing Co Ltd or equivalent Capacitors Use capacitors with a CH tempe...

Page 19: ...200kHz 3 In case of using IEEE802 15 4k in order to satisfy the spurious emission ML7404 should be used 5 bundled unit channel Figure 8 1 Therefore it is necessary to perform CCA Clear Channel Assessm...

Page 20: ...ML7404 Family LSIs Hardware Design Manual FEXL7404DG 03 14 9 Circuit for RF characteristic measurement 920MHz Note In case of using TCXO XIN 5 pin should be open C41...

Page 21: ...1000pF Murata Manufacturing Co Ltd GRM155B11H102K 1 C8 0 01uF Murata Manufacturing Co Ltd GRM155B11E103K C9 1uF Murata Manufacturing Co Ltd GRM155B31A105K C14 N M C15 0 1uF Murata Manufacturing Co Lt...

Page 22: ...0WB C50 6 8pF Murata Manufacturing Co Ltd GJM1554C1H6R8CB C103 N M R3 12k KOA Corporation RK73B1ETTP123J R101 N M IC1 LAPIS Semiconductor Co Ltd ML7404 TCXO input ML7404 Component Value Vender Remarks...

Page 23: ...1 C3 1000pF Murata Manufacturing Co Ltd GRM155B11H102K 1 C8 0 01uF Murata Manufacturing Co Ltd GRM155B11E103K C9 1uF Murata Manufacturing Co Ltd GRM155B31A105K C14 N M C15 0 1uF Murata Manufacturing C...

Page 24: ...16SA RBB5004A C7 0 1uF Murata Manufacturing Co Ltd GRM155B31C104K 1 Please refer the Table 3 1 in the section 3 1 2 Please refer the Table 4 1 1 in the section 4 1 The internal VCO oscillates at 920MH...

Page 25: ...ML7404 Family LSIs Hardware Design Manual FEXL7404DG 03 19 10 3 Application Circuit...

Page 26: ...n Manual FEXL7404DG 03 20 Revision history Document No Release Date Page Content Before revision After revision FEXL7404DG 02 May 28th 2018 1st revision FEXL7404DG 03 Oct 5th 2018 18 18 Bill of Materi...

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