Design DocumentAnalog

Analog Devices Eterna Integration Guide for LTC5800

Hardware integration guide for LTC5800-based Eterna designs, covering schematic requirements, PCB layout, crystal selection, and RF certification for SmartMesh wireless networks.

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Overview

This technical document provides comprehensive design guidelines for incorporating Analog Devices LTC5800 series SoC products (LTC5800-IPM, LTC5800-IPRA, LTC5800-IPRB) into hardware designs. It details schematic requirements including power supply filtering, on-chip regulation capacitor placement, and crystal oscillator selection for both 20 MHz and 32.768 kHz frequencies. The guide covers PCB layout strategies for EMI mitigation, 72-lead QFN land pattern specifications, and antenna path optimization using Pi matching networks or 1/4 wave stubs for ESD protection and harmonic suppression. Additional sections address external memory support, device configuration via fuse tables, and global RF certification processes for SmartMesh IP and WirelessHART applications.

Use Cases

Industrial IoT sensor node development
Wireless mesh network hardware design
Low-power RF system integration
Regulatory compliance and RF certification planning
Embedded microprocessor power management design

Topics

LTC5800

SmartMesh IP

WirelessHART

Eterna

RF Design

QFN-72

2.4 GHz

Antenna Matching

PCB Layout

Dust Networks

Referenced Parts

ABS07-32.768KHZ-4-T

Abracon

Abracon ABS07-32.768KHZ-4-T 3.2x1.5x0.9mm, SMD

0402CS-2N7XJL

Coilcraft

2.7 nH 0402 Coilcraft 0402CS-2N7XJL

FR05-S1-N-0-102

Fractus

warning for the use of the Fractus FR05-S1-N-0-102 chip antenna

AYU1-1P-02676-120

JST

J1 JST AYU1-1P-02676-120

C0402C563K9RACTU

Kemet

C7, C8, C9, C10, C11, C12, C17, C18, C19, C20 56 nF Kemet C0402C563K9RACTU

87831-1020

Molex

J2, J3 5x2 header Molex 87831-1020

GRM0335C1E101JD01D

Murata

C29 100 pF Murata GRM0335C1E101JD01D

GRM155R71C104KA88D

Murata

C6,C16 100 nF Murata GRM155R71C104KA88D

GRM188R71A225KE15D

Murata

C23 2.2 μF Murata GRM188R71A225KE15D

LQM18FN2R2M00D

Murata

L1 2.2 μH Murata LQM18FN2R2M00D

NX3215SA-32.768K-STD-MUA-8

NDK

NDK NX3215SA-32.768K-STD-MUA-8 3.2x1.5x0.9mm, SMD

C1005X5R0J474K

TDK

C13 470 nF TDK C1005X5R0J474K

JMK105B7224KV-F

Taiyo Yuden

C21 220 nF Taiyo Yuden JMK105B7224KV-F

CRCW0402237RFKED

Vishay

R8 237 Vishay CRCW0402237RFKED

RC0603JR-070RL

Yageo

R14 0 Yageo RC0603JR-070RL

C0402C563K9RACTU

Kemet

56 nF Kemet C0402C563K9RACTU

GRM0335C1E300JD01D

Murata

C25,C27 30 pF Murata GRM0335C1E300JD01D

GRM155R71C104KA88D

Murata

100 nF Murata GRM155R71C104KA88D

74AUP1G58GM

NXP

NXP 74AUP1G58GM, 132

ERJ-1GE0R00C

Panasonic

R6,R7,R9 0 Panasonic ERJ-1GE0R00C

ERJ-1GEJ104C

Panasonic

R5 100 kOhm Panasonic ERJ-1GEJ104C

CRCW0201499RFKED

Vishay

R8,R10 499 Ohm Vishay CRCW0201499RFKED

0201DS-3N3XJL

Coilcraft

L2* 3.3 nH 0201 Coilcraft 0201DS-3N3XJL

LTC5800-IPM

Analog Devices

developing software on the LTC5800-IPM

LTC5800-IPRA

Analog Devices

differences between the -IPRA and –IPRB performance

LTC5800-IPRB

Analog Devices

differences between the -IPRA and –IPRB performance

ECS-.327-12.5-17X

ECS Inc.

ECS ECS-.327-12.5-17X 8.7x3.7x2.5mm, SMD

ECS-.327-12.5-17X-TR

ECS Inc.

X1 32.768 kHz ECS Inc. ECS-.327-12.5-17X-TR

ECS-.327-12.5-34B-TR

ECS Inc.

ECS ECS-.327-12.5-34B-TR 3.2x1.5x0.9mm, SMD

ECS-200-CDX-0778

ECS Inc.

ECS ECS-200-CDX-0778 2.5x2.0x0.55mm, SMD

ECS-200-CDX-0914

ECS Inc.

X2 20.000 MHz ECS Inc. ECS-200-CDX-0914

ECS-200-CDX-0998

ECS Inc.

ECS ECS-200-CDX-0998* 3.2x2.5x0.8mm, SMD

DUST-SHLD01

Fotofab

SH1 Fotofab DUST-SHLD01

CX3225SB20000F0FZZC1

Kyocera

KYOCERA CX3225SB20000F0FZZC1* 3.2x2.5x0.9mm, SMD

GRM610C0G010B25K500

Murata

C22*, C28* 1 pF Murata GRM610C0G010B25K500

ABS07-32.768KHZ-4-T	Abracon	Abracon ABS07-32.768KHZ-4-T 3.2x1.5x0.9mm, SMD
0402CS-2N7XJL	Coilcraft	2.7 nH 0402 Coilcraft 0402CS-2N7XJL
FR05-S1-N-0-102	Fractus	warning for the use of the Fractus FR05-S1-N-0-102 chip antenna
AYU1-1P-02676-120	JST	J1 JST AYU1-1P-02676-120
C0402C563K9RACTU	Kemet	C7, C8, C9, C10, C11, C12, C17, C18, C19, C20 56 nF Kemet C0402C563K9RACTU
87831-1020	Molex	J2, J3 5x2 header Molex 87831-1020
GRM0335C1E101JD01D	Murata	C29 100 pF Murata GRM0335C1E101JD01D
GRM155R71C104KA88D	Murata	C6,C16 100 nF Murata GRM155R71C104KA88D
GRM188R71A225KE15D	Murata	C23 2.2 μF Murata GRM188R71A225KE15D
LQM18FN2R2M00D	Murata	L1 2.2 μH Murata LQM18FN2R2M00D
NX3215SA-32.768K-STD-MUA-8	NDK	NDK NX3215SA-32.768K-STD-MUA-8 3.2x1.5x0.9mm, SMD
C1005X5R0J474K	TDK	C13 470 nF TDK C1005X5R0J474K
JMK105B7224KV-F	Taiyo Yuden	C21 220 nF Taiyo Yuden JMK105B7224KV-F
CRCW0402237RFKED	Vishay	R8 237 Vishay CRCW0402237RFKED
RC0603JR-070RL	Yageo	R14 0 Yageo RC0603JR-070RL
C0402C563K9RACTU	Kemet	56 nF Kemet C0402C563K9RACTU
GRM0335C1E300JD01D	Murata	C25,C27 30 pF Murata GRM0335C1E300JD01D
GRM155R71C104KA88D	Murata	100 nF Murata GRM155R71C104KA88D
74AUP1G58GM	NXP	NXP 74AUP1G58GM, 132
ERJ-1GE0R00C	Panasonic	R6,R7,R9 0 Panasonic ERJ-1GE0R00C
ERJ-1GEJ104C	Panasonic	R5 100 kOhm Panasonic ERJ-1GEJ104C
CRCW0201499RFKED	Vishay	R8,R10 499 Ohm Vishay CRCW0201499RFKED
0201DS-3N3XJL	Coilcraft	L2* 3.3 nH 0201 Coilcraft 0201DS-3N3XJL
LTC5800-IPM	Analog Devices	developing software on the LTC5800-IPM
LTC5800-IPRA	Analog Devices	differences between the -IPRA and –IPRB performance
LTC5800-IPRB	Analog Devices	differences between the -IPRA and –IPRB performance
ECS-.327-12.5-17X	ECS Inc.	ECS ECS-.327-12.5-17X 8.7x3.7x2.5mm, SMD
ECS-.327-12.5-17X-TR	ECS Inc.	X1 32.768 kHz ECS Inc. ECS-.327-12.5-17X-TR
ECS-.327-12.5-34B-TR	ECS Inc.	ECS ECS-.327-12.5-34B-TR 3.2x1.5x0.9mm, SMD
ECS-200-CDX-0778	ECS Inc.	ECS ECS-200-CDX-0778 2.5x2.0x0.55mm, SMD
ECS-200-CDX-0914	ECS Inc.	X2 20.000 MHz ECS Inc. ECS-200-CDX-0914
ECS-200-CDX-0998	ECS Inc.	ECS ECS-200-CDX-0998* 3.2x2.5x0.8mm, SMD
DUST-SHLD01	Fotofab	SH1 Fotofab DUST-SHLD01
CX3225SB20000F0FZZC1	Kyocera	KYOCERA CX3225SB20000F0FZZC1* 3.2x2.5x0.9mm, SMD
GRM610C0G010B25K500	Murata	C22, C28 1 pF Murata GRM610C0G010B25K500