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ML7345 Family LSIs Hardware Deaign Manual

8. Application circuit(ML7345)

8.1.

426

～

433MHz

(ML7345/ML7345C)

[Note]

· The XIN (#5) pin should be OPEN when using TCXO.

Thick line is Zo=50 ohm.

ANTENNA

Power Supply

3.3V

Place LC tank on surface as close to LSI

pin as possible.

About the peripheral parts of pin#5 and pin#6 ,

please refer the section 2 and section 9.

VDD_RF VB_EXT VDD_VCO REG_OUT

VDD_CP

VBG REG_CORE VDD_REG

(25) (31) (32) (3)

(27) (2) (4) (1)

R3
6.8kΩ

1000pF

C37

1uF

IC1

ML7345

(26)

PA_OUT(20)

LNA_P(24)

IND2

GND_VCO

IND1

(30) (29)

(28)

Back side is GND PAD

VDDIO(9)

A_MON(23)

C33

1000pF

C27
1000pF

C41

100pF

L2
40nH

18nH

C45
100pF

C48

2.4pF

L5
7.3nH

C47
4.7pF

L1
4.7nH

C17
0.1uF

C22
1000pF

C15
0.1uF

10pF

C21
0.1uF

L7
20nH

C49

N.M.

VDD_PA(22)

REG_PA(21)

3.9pF

C36

0.1uF

C38

1000pF

L9
20nH

N.C.

(7)

SDI(15)

SDO(12)

SCLK(13)

SCEN(14)

GPIO0(16)

EXT_CLK(10)

RESETN(8)

GPIO2(18)

GPIO1(17)

GPIO3(19)

REGPDIN(11)

C31
0.1uF

C19
1uF

C51

1.2pF

Digital

I/O

C50

5.6pF

L6
5.8nH

0Ω

TCXO

IC2

R4
N.M.

R11

C13
10uF

Содержание ML7345

Страница 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...

Страница 2: ...ML7345 Family LSIs Hardware Design Manual Issue Date Sep 5th 2019 FEXL7345DG 02...

Страница 3: ...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 representa...

Страница 4: ...devices Hereafter ML7345 And also contains the measurement conditions and example of measurement results of RF characteristics Target product ML7345 ML7345C ML7345D The following related manual is av...

Страница 5: ...case 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 electrica...

Страница 6: ...1 ANTENNA TX AND RX DIRECT TIE MATCHING CIRCUIT 10 6 NOTES ON SELECTING EXTERNAL PARTS RECOMMENDATIONS 11 6 1 ANNTENNA 11 6 2 INDUCTORS 11 6 3 CAPACITORS 11 6 4 RESISTORS 11 7 NOTES ON BOARD ARTWORKS...

Страница 7: ...ML7345 Family LSIs Hardware Design Manual v...

Страница 8: ...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 VDD REG_CORE 4 VB_EXT 31 VDD_VCO...

Страница 9: ...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 capacitor shoul...

Страница 10: ...ystal oscillator circuit It is recommended to ask your oscillator manufacturer to evaluate the matching component values on the assembled board The following tables show the matching component values...

Страница 11: ...d 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 where large current flow ar...

Страница 12: ...equency accuracy below 10ppm The ML7345 has integrated bias circuit and the DC bias is applied to the TCXO 6 pin A 0 1uF capacitor should be placed on the TCXO line as following In ML7345 5 pin is N C...

Страница 13: ...t select high dielectric type and semiconductor type 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 pla...

Страница 14: ...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 ML7345 Table 4 1 shows the typical value of internal capac...

Страница 15: ...ctureing process normal temperature contorol In order for the VCO_CAL value to be within the 64 dec 20code by shipment test use the deviation of L C is less than 2 The frequency range that PLL can loc...

Страница 16: ...ed so that their positional relationship becomes the 90 degrees to avoid their coupling 2 2 L1 and L3 should be placed close to their connect pins of ML7345 They should not be placed close to each oth...

Страница 17: ...MHz 19 7 j62 5 19 7 j62 5 4 6 j91 2 13 7 j72 5 Note These component values appropriate for use on the LAPIS Semiconductor s RF board It is not guaranteed to obtain same result on your specific board 5...

Страница 18: ...al Impedance 50 6 2 Inductors Use inductors with high Q It is recommended to use LQW15AN series manufactured by Murata Manufacturing Co Ltd or equivalent 6 3 Capacitors Use capacitors with a CH temper...

Страница 19: ...REG_CORE VDD_REG 25 31 32 3 27 2 4 1 R3 6 8k C3 1000pF C37 1uF X1 IC1 ML7345 LP 26 PA_OUT 20 LNA_P 24 IND2 GND_VCO IND1 30 29 28 Back side is GND PAD VDDIO 9 A_MON 23 C33 1000pF C27 1000pF C41 100pF L...

Страница 20: ...2 3 27 2 4 1 R3 12k C3 1000pF C37 1uF X1 IC1 ML7345 LP 26 PA_OUT 20 LNA_P 24 IND2 GND_VCO IND1 30 29 28 Back side is GND PAD VDDIO 9 XIN XOUT 5 6 A_MON 23 C33 1000pF C27 1000pF C41 100pF L2 11nH L3 5...

Страница 21: ...VDD_VCO REG_OUT VDD_CP VBG REG_CORE VDD_REG 25 31 32 3 27 2 4 1 R3 12k C37 1uF X1 IC1 ML7345 LP 26 PA_OUT 20 LNA_P 24 IND2 GND_VCO IND1 30 29 28 Back side is GND PAD VDDIO 9 XIN XOUT 5 6 A_MON 23 C33...

Страница 22: ...DD_VCO REG_OUT VDD_CP VBG REG_CORE VDD_REG 25 31 32 3 27 2 4 1 R3 6 8k C37 1uF X1 IC1 ML7345C LP 26 PA_OUT 20 LNA_P 24 IND2 GND_VCO IND1 30 29 28 Back side is GND PAD VDDIO 9 XIN XOUT 5 6 A_MON 23 C33...

Страница 23: ...M N M 6 8pF KOA Corporation Murata Manufacturing Co Ltd RK73Z1ETTP GJM15Series 4 L9 20nH 0 0 23nH KOA Corporation Murata Manufacturing Co Ltd RK73Z1ETTP LQW15AN Series 4 C1 3 9pF 3 9pF 3 3pF N M Murat...

Страница 24: ...IC1 ML7345 ML7345C LAPIS Semiconductor Co Ltd RF LSI Crystal input ML7345 Component Value Vender Remarks X1 24MHz River Eletec Corporation FA 128 Nihon Denpa Kogyo Co Ltd NX2016SA IC2 N M C4 1pF Murat...

Страница 25: ...20 LNA_P 24 IND2 GND_VCO IND1 30 29 28 Back side is GND PAD VDDIO 9 XIN XOUT 5 6 A_MON 23 C33 1000pF C27 1000pF C41 0 L2 30nH L3 18nH C45 100pF C48 2 4pF L5 7 3nH C47 4 7pF L1 4 7nH C17 0 1uF C22 1000...

Страница 26: ...31 32 3 27 2 4 1 R3 12k C3 1000pF C37 1uF X1 IC1 ML7345D LP 26 PA_OUT 20 LNA_P 24 IND2 GND_VCO IND1 30 29 28 Back side is GND PAD VDDIO 9 XIN XOUT 5 6 A_MON 23 C33 1000pF C27 1000pF C41 0 L2 8 2nH L3...

Страница 27: ...XT VDD_VCO REG_OUT VDD_CP VBG REG_CORE VDD_REG 25 31 32 3 27 2 4 1 R3 12k C37 1uF X1 IC1 ML7345D LP 26 PA_OUT 20 LNA_P 24 IND2 GND_VCO IND1 30 29 28 Back side is GND PAD VDDIO 9 XIN XOUT 5 6 A_MON 23...

Страница 28: ...Ltd GJM1552C1H5R6C 4 L9 20nH 0 0 Murata Manufacturing Co Ltd LQW15AN Series 4 C1 3 9pF 3 9pF 3 3pF Murata Manufacturing Co Ltd GJM15 Series 2 C2 10pF 68pF 68pF Murata Manufacturing Co Ltd GJM15 Series...

Страница 29: ...Ltd RF LSI Crystal input ML7345D Component Value Vender Remarks X1 24MHz River Eletec Corporation FA 128 Nihon Denpa Kogyo Co Ltd NX2016SA IC2 N M C4 1pF Murata Manufacturing Co Ltd GRM155 or equivale...

Страница 30: ...t Before revision After revision FEXL7345DG 01 2018 5 8 1st revision FEXL7345DG 02 2019 9 5 5 5 2 2 TCXO circuit ML7345 ML7345D 8 8 4 1 Adjusting component values for VCO tank 10 10 5 RF matching comp...

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