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ML7404 Family LSIs

Hardware Design Manual

FEXL7404DG-03

Revision history

Document No.

Release Date

Page

Content

Before

revision

After

revision

FEXL7404DG-02

May 28

, 2018

–

revision

FEXL7404DG-03

Oct 5

, 2018

Bill of Materials(920MHz) added description to (*2)

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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