Telit Communications S p A WE866C3 Users Guide
WE866C3
HW Design Guide
1VV0301495 Rev. 8 – 2019-05-27
[01.2017]
Mod.0818 2017-01 Rev.0
WE866C3_Hardware_Design_Guide
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
NOTICE
While reasonable efforts have been made to assure the accuracy of this document, Telit
assumes no liability resulting from any inaccuracies or omissions in this document, or from
use of the information obtained herein. The information in this document has been carefully
checked and is believed to be reliable. However, no responsibility is assumed for
inaccuracies or omissions. Telit reserves the right to make changes to any products
described herein and reserves the right to revise this document and to make changes from
time to time in content hereof with no obligation to notify any person of revisions or changes.
Telit does not assume any liability arising out of the application or use of any product,
software, or circuit described herein; neither does it convey license under its patent rights
or the rights of others.
It is possible that this publication may contain references to, or information about Telit
products (machines and programs), programming, or services that are not announced in
your country. Such references or information must not be construed to mean that Telit
intends to announce such Telit products, programming, or services in your country.
COPYRIGHTS
This instruction manual and the Telit products described in this instruction manual may be,
include or describe copyrighted Telit material, such as computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and its licensors certain exclusive rights for copyrighted material, including the
exclusive right to copy, reproduce in any form, distribute and make derivative works of the
copyrighted material. Accordingly, any copyrighted material of Telit and its licensors
contained herein or in the Telit products described in this instruction manual may not be
copied, reproduced, distributed, merged or modified in any manner without the express
written permission of Telit. Furthermore, the purchase of Telit products shall not be deemed
to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents or patent applications of Telit, as arises by operation of law in the sale
of a product.
COMPUTER SOFTWARE COPYRIGHTS
The Telit and 3rd Party supplied Software (SW) products described in this instruction
manual may include copyrighted Telit and other 3rd Party supplied computer programs
stored in semiconductor memories or other media. Laws in the Italy and other countries
preserve for Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted
computer programs, including the exclusive right to copy or reproduce in any form the
copyrighted computer program. Accordingly, any copyrighted Telit or other 3rd Party
supplied SW computer programs contained in the Telit products described in this instruction
manual may not be copied (reverse engineered) or reproduced in any manner without the
express written permission of Telit or the 3rd Party SW supplier. Furthermore, the purchase
of Telit products shall not be deemed to grant either directly or by implication, estoppel, or
otherwise, any license under the copyrights, patents or patent applications of Telit or other
3rd Party supplied SW, except for the normal non-exclusive, royalty free license to use that
arises by operation of law in the sale of a product.
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USAGE AND DISCLOSURE RESTRICTIONS
I. License Agreements
The software described in this document is the property of Telit and its licensors. It is
furnished by express license agreement only and may be used only in accordance with the
terms of such an agreement.
II. Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is
prohibited by law. No part of the software or documentation may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, without prior written permission of Telit
III. High Risk Materials
Components, units, or third-party products used in the product described herein are NOT
fault-tolerant and are NOT designed, manufactured, or intended for use as on-line control
equipment in the following hazardous environments requiring fail-safe controls: the
operation of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air
Traffic Control, Life Support, or Weapons Systems (High Risk Activities"). Telit and its
supplier(s) specifically disclaim any expressed or implied warranty of fitness for such HighRisk Activities.
IV. Trademarks
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or
service names are the property of their respective owners.
V. Third Party Rights
The software may include Third Party Right software. In this case you agree to comply with
all terms and conditions imposed on you in respect of such separate software. In addition
to Third Party Terms, the disclaimer of warranty and limitation of liability provisions in this
License shall apply to the Third-Party Right software.
TELIT HEREBY DISCLAIMS ANY AND ALL WARRANTIES EXPRESS OR IMPLIED
FROM ANY THIRD PARTIES REGARDING ANY SEPARATE FILES, ANY THIRD PARTY
MATERIALS INCLUDED IN THE SOFTWARE, ANY THIRD PARTY MATERIALS FROM
WHICH THE SOFTWARE IS DERIVED (COLLECTIVELY “OTHER CODE”), AND THE
USE OF ANY OR ALL THE OTHER CODE IN CONNECTION WITH THE SOFTWARE,
INCLUDING (WITHOUT LIMITATION) ANY WARRANTIES OF SATISFACTORY
QUALITY OR FITNESS FOR A PARTICULAR PURPOSE.
NO THIRD PARTY LICENSORS OF OTHER CODE SHALL HAVE ANY LIABILITY FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED
AND WHETHER MADE UNDER CONTRACT, TORT OR OTHER LEGAL THEORY,
ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE OTHER CODE
OR THE EXERCISE OF ANY RIGHTS GRANTED UNDER EITHER OR BOTH THIS
LICENSE AND THE LEGAL TERMS APPLICABLE TO ANY SEPARATE FILES, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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APPLICABILITY TABLE
PRODUCTS
WE866C3-P
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Contents
NOTICE 2
COPYRIGHTS .................................................................................................. 2
COMPUTER SOFTWARE COPYRIGHTS ....................................................... 2
USAGE AND DISCLOSURE RESTRICTIONS ................................................ 3
APPLICABILITY TABLE .................................................................................. 4
CONTENTS ...................................................................................................... 5
1. INTRODUCTION ............................................................................ 9
Scope ............................................................................................. 9
Audience ........................................................................................ 9
Contact Information, Support ......................................................... 9
Text Conventions ......................................................................... 10
Related Documents ...................................................................... 11
2. GENERAL PRODUCT DESCRIPTION ........................................ 12
Overview ...................................................................................... 12
Block Diagram .............................................................................. 12
Product Variants ........................................................................... 12
Target market ............................................................................... 13
Main features ................................................................................ 13
3. PINS ALLOCATION .................................................................... 15
Pin Type Definition ....................................................................... 15
Pin-out .......................................................................................... 15
LGA Pads Layout ......................................................................... 17
4. POWER SUPPLY ........................................................................ 18
Power Supply Requirements ........................................................ 18
Power Consumption ..................................................................... 19
4.2.1. Typical power consumption for WLAN low-power states ............. 19
4.2.2. Typical Power consumption for WLAN continuous Rx [2.4 GHz] . 19
4.2.3. Typical Power consumption for WLAN continuous Rx [5 GHz] .... 20
4.2.4. Typical Power consumption for WLAN continuous TX [2.4 GHz] . 20
4.2.5. Typical Power consumption for WLAN continuous TX [5 GHz] .... 21
4.2.6. Typical Power consumption for BT ............................................... 21
Power Supply Sequencing ........................................................... 23
5. DIGITAL SECTION ...................................................................... 24
DC electrical characteristics ......................................................... 24
Interface Ports and Signals .......................................................... 25
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5.2.1. WLAN Interfaces .......................................................................... 25
5.2.1.1. SDIO Interface .............................................................................. 25
5.2.1.2. WL_EN ......................................................................................... 25
5.2.1.3. WOW ............................................................................................ 25
5.2.1.4. LF_CLK_IN ................................................................................... 26
5.2.1.5. Coexistence UART Interface ........................................................ 26
BT Interface .................................................................................. 27
5.3.1.1. BT HCI-UART ............................................................................... 27
5.3.1.2. PCM/I2S ....................................................................................... 27
5.3.1.3. BT_EN .......................................................................................... 27
6. RF SECTION ................................................................................ 28
RF Frequencies ............................................................................ 28
TX Output power .......................................................................... 28
6.2.1. TX Output Power at Room Temperature ...................................... 28
6.2.1.1. 802.11b (2.4GHz) ......................................................................... 28
6.2.1.2. 802.11g (2.4GHz) ......................................................................... 28
6.2.1.3. 802.11n, Channel BW = 20MHz (2.4GHz) ................................... 29
6.2.1.4. 802.11n, Channel BW = 40MHz (2.4GHz) ................................... 29
6.2.1.5. 802.11a (5GHz) ............................................................................ 29
6.2.1.6. 802.11n/ac, Channel BW = 20MHz (5GHz) ................................. 29
6.2.1.7. 802.11n/ac, Channel BW = 40MHz (5GHz) ................................. 30
6.2.1.8. 802.11ac, Channel BW = 80MHz (5GHz) .................................... 30
6.2.1.9. Bluetooth TX power ...................................................................... 30
6.2.2. TX Output power at Cold Temperature ........................................ 30
6.2.2.1. 802.11b (2.4GHz) ......................................................................... 30
6.2.2.2. 802.11g (2.4GHz) ......................................................................... 30
6.2.2.3. 802.11n, Channel BW = 20MHz (2.4GHz) ................................... 31
6.2.2.4. 802.11n, Channel BW = 40MHz (2.4GHz) ................................... 31
6.2.2.5. 802.11a (5GHz) ............................................................................ 31
6.2.2.6. 802.11n/ac, Channel BW = 20MHz (5GHz) ................................. 31
6.2.2.7. 802.11n/ac, Channel BW = 40MHz (5GHz) ................................. 32
6.2.2.8. 802.11ac, Channel BW = 80MHz (5GHz) .................................... 32
6.2.3.
TX Output power at Hot Temperature .......................................... 32
6.2.3.1. 802.11b (2.4GHz) ......................................................................... 32
6.2.3.2. 802.11g (2.4GHz) ......................................................................... 32
6.2.3.3. 802.11n, Channel BW = 20MHz (2.4GHz) ................................... 32
6.2.3.4. 802.11n, Channel BW = 40MHz (2.4GHz) ................................... 33
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6.2.3.5. 802.11a (5GHz) ............................................................................ 33
6.2.3.6. 802.11n/ac, Channel BW = 20MHz (5GHz) ................................. 33
6.2.3.7. 802.11n/ac, Channel BW = 40MHz (5GHz) ................................. 33
6.2.3.8. 802.11ac, Channel BW = 80MHz (5GHz) .................................... 33
Receiver Sensitivity ...................................................................... 34
6.3.1. Receiver Sensitivity at Room Temperature .................................. 34
6.3.1.1. 802.11b (2.4GHz) ......................................................................... 34
6.3.1.2. 802.11g (2.4GHz) ......................................................................... 34
6.3.1.3. 802.11n, Channel BW = 20MHz (2.4GHz) ................................... 34
6.3.1.4. 802.11n, Channel BW = 40MHz (2.4GHz) ................................... 35
6.3.1.5. 802.11a (5GHz) ............................................................................ 35
6.3.1.6. 802.11n/ac, Channel BW = 20MHz (5GHz) ................................. 35
6.3.1.7. 802.11n/ac, Channel BW = 40MHz (5GHz) ................................. 35
6.3.1.8. 802.11ac, Channel BW = 80MHz (5GHz) .................................... 36
6.3.1.9. Bluetooth (BER < 0.1%) ............................................................... 36
6.3.2. Receiver Sensitivity at Cold Temperature .................................... 36
6.3.2.1. 802.11b (2.4GHz) ......................................................................... 36
6.3.2.2. 802.11g (2.4GHz) ......................................................................... 36
6.3.2.3. 802.11n, Channel BW = 20MHz (2.4GHz) ................................... 37
6.3.2.4. 802.11n, Channel BW = 40MHz (2.4GHz) ................................... 37
6.3.2.5. 802.11a (5GHz) ............................................................................ 37
6.3.2.6. 802.11n/ac, Channel BW = 20MHz (5GHz) ................................. 37
6.3.2.7. 802.11n/ac, Channel BW = 40MHz (5GHz) ................................. 38
6.3.2.8. 802.11ac, Channel BW = 80MHz (5GHz) .................................... 38
6.3.3.
Receiver Sensitivity at Hot Temperature ...................................... 38
6.3.3.1. 802.11b (2.4GHz) ......................................................................... 38
6.3.3.2. 802.11g (2.4GHz) ......................................................................... 38
6.3.3.3. 802.11n, Channel BW = 20MHz (2.4GHz) ................................... 38
6.3.3.4. 802.11n, Channel BW = 40MHz (2.4GHz) ................................... 39
6.3.3.5. 802.11a (5GHz) ............................................................................ 39
6.3.3.6. 802.11n/ac, Channel BW = 20MHz (5GHz) ................................. 39
6.3.3.7. 802.11n/ac, Channel BW = 40MHz (5GHz) ................................. 39
6.3.3.8. 802.11ac, Channel BW = 80MHz (5GHz) .................................... 39
7. DESIGN GUIDELINES ................................................................. 40
General PCB design guidelines ................................................... 40
SDIO interface .............................................................................. 40
Voltage regulator .......................................................................... 40
7.3.1. Recommended regulators ............................................................ 40
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7.3.2. Regulator operating conditions ..................................................... 41
Antenna requirements .................................................................. 42
7.4.1. Main Antenna ............................................................................... 42
7.4.2. Antenna Cable .............................................................................. 42
7.4.3. Antenna design ............................................................................ 43
7.4.4. Antenna installation Guidelines .................................................... 44
7.4.5. Antenna list ................................................................................... 44
8. MECHANICAL DESIGN............................................................... 45
Mechanical Dimensions ............................................................... 45
8.1.1. Mechanical Drawing ..................................................................... 45
8.1.2. Top View ...................................................................................... 45
8.1.3. Bottom View ................................................................................. 46
8.1.4. Side View ..................................................................................... 47
9. APPLICATION PCB DESIGN ...................................................... 48
Recommended footprint for the application .................................. 48
PCB pad design ........................................................................... 49
PCB pad dimensions .................................................................... 50
Stencil ........................................................................................... 51
Solder paste ................................................................................. 51
Cleaning ....................................................................................... 51
Solder reflow ................................................................................ 52
10. PACKING SYSTEM ..................................................................... 53
Tray .............................................................................................. 53
Tray Drawing ................................................................................ 54
Moisture sensitivity ....................................................................... 55
11. CONFORMITY ASSESSMENT ISSUES ..................................... 56
Declaration of Conformity ............................................................. 56
12. SAFETY RECOMMENDATIONS ................................................. 57
READ CAREFULLY ..................................................................... 57
13. FCC/IC COMPLIANCE ................................................................ 58
14. ACRONYMS ................................................................................ 62
15. DOCUMENT HISTORY ................................................................ 63
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1. INTRODUCTION
Scope
This document introduces the Telit WE866C3 module and presents possible and
recommended hardware solutions for developing a product based on this module.
Obviously, this document cannot include every hardware solution or every product that
can be designed. Where the suggested hardware configurations need not be considered
mandatory, the information given should be used as a guide and a starting point for
properly developing your product with the Telit module.
Audience
This document is intended for Telit customers, especially system integrators, about to
implement their applications using the Telit module.
Contact Information, Support
For general contact, technical support services, technical questions and report
documentation errors contact Telit Technical Support at:
TS-EMEA@telit.com
TS-AMERICAS@telit.com
TS-APAC@telit.com
TS-SRD@telit.com
Alternatively, use:
http://www.telit.com/support
For detailed information about where you can buy the Telit modules or for
recommendations on accessories and components visit:
http://www.telit.com
Our aim is to make this guide as helpful as possible. Keep us informed of your comments
and suggestions for improvements.
Telit appreciates feedback from the users of our information.
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Text Conventions
Danger – This information MUST be followed or catastrophic
equipment failure or bodily injury may occur.
Caution or Warning – Alerts the user to important points about
integrating the module, if these points are not followed, the module and
end user equipment may fail or malfunction.
Tip or Information – Provides advice and suggestions that may be
useful when integrating the module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
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Related Documents
LE910Cx HW Design Guide 1VV0301298
Telit EVB User Guide 1VV0301249
LE910Cx Multi Technology Interface 1VV0301508
Board TLB - HW User Guide
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2. GENERAL PRODUCT DESCRIPTION
Overview
The WE866C3 is a low power and low-cost wireless module solution based on Qualcomm
QCA9377-3. It supports 1×1 IEEE 802.11a/b/g/n/ac WLAN standards and BT 4.2 + HS +
BLE, enabling seamless integration of WLAN/BT and low energy. It is a perfect
companion solution for Telit cellular modules such as LE910Cx or LE920A4.
WE866C3 supports low-power SDIO 3.0 interface for WLAN and a UART/PCM interface
for BT. WE866C3 also supports BT-WLAN coexistence and uses the 2 wire ISM-LTE
coexistence interface.
Block Diagram
The following figure shows a high-level block diagram of WE866C3 module and its major
functional blocks.
Power supply
SDIO
PCM and UART
RF Antenna
3.3V
VDD_IO
SDIO
WL _EN
WO W
32K _IN
LT E_COEX
BT_UART
BT_EN
I2S/PCM
QCA9377
Figure 1 Module Block Diagram
Product Variants
WE866C3 variants are listed below:
TX/RX
TX/RX
Filter
48M Hz
XO
5G
2.4G
Filter
5G
PA
Diplexer
ANT
Cou pler
Product Description
WE866C3-P 1x1 WIFI/BT wireless module
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Target market
WE866C3 can be used in IoT applications complementing client data availability coverage
of the Cellular modems, with low power and low cost, for example:
Bridging LTE / WLAN
Industrial floor
Healthcare instrument data terminals
Smart Home automation and remote control
Main features
Feature Specification
Power
Interfaces
Supported
Data Rate
Main supply voltage: 3.3V
VIO supply voltage: 1.8V or 3.3V
WLAN SDIO 3.0
BT UART
BT PCM/I2S
LTE Coexistence UART (WCI)
Low frequency 32.768KHz sleep clock
Single Antenna port, 50 Ohm
Control signals
802.11a (5GHz): 6, 9, 12, 18, 24, 36, 48, 54Mbps
802.11b (2.4GHz): 1, 2, 5.5, 11Mbps
802.11g (2.4GHz): 6, 9, 12, 18, 24, 36, 48, 54Mbps
802.11n (2.4GHz/5GHz):
20Mhz BW: Up to 72.2Mbps using short GI (MCS0-7)
40Mhz BW: Up to 144.4Mbps using short GI (MCS0-7)
802.11ac (5GHz): HT20 (MCS0-8), VHT40 (MCS0-9), VHT80 (MCS0-9)
802.11a / 54Mbps: 14 dbm
802.11b / 11Mbps: 18 dbm
802.11g / 54Mbps: 15 dbm
Transmission
Power
802.11n / HT20 (MCS7): 15 dbm
802.11ac / HT20 (MCS0): 15.5 dbm
802.11ac / VHT40 (MCS9): 11 dbm
802.11ac / VHT80 (MCS9): 10.5 dbm
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Data
Standard
Operating
Modes
IEEE 802.11a/b/g/n/ac
Access Point
Station
Modulation BPSK, QPSK, CCK, 16QAM, 64QAM, 256QAM
Size: 15±0.15 x 13±0.15 x 2.15±0.15 mm
Mechanical
Package: LGA
Weight: 1g
1)
Temperature
Range
Operating: -30°C to +85°C
Storage and non-operating: -40°C to +105°C
RoHS All hardware components are fully compliant with EU RoHS directive
Notes:
1) The module complies with IEEE standard.
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3. PINS ALLOCATION
Pin Type Definition
Type Description
DI Digital Input
DO Digital Output
PD Pull-Down
PU Pull-Up
OD Open-Drain Output
B Bi-Directional
AI Analog/RF Input
AO Analog/RF Output
P Power Input
Pins directions are with respect to the WE866C3 module.
Pin-out
Pin Pin name
BT UART interface
B3 BT_CTS VIO DI Bluetooth HCI-UART CTS signal
B4 BT_RTS VIO DO Bluetooth HCI-UART RTS signal
A5 BT_RXD VIO DI Bluetooth HCI-UART RXD signal
A4 BT_TXD VIO DO Bluetooth HCI-UART TXD signal
BT PCM interface
C6 BT_I2S_SDI VIO DI, PU Bluetooth PCM/I2S Input signal, Internal Pull-Up
C5 BT_I2S_WS VIO B Bluetooth PCM/I2S Frame Sync signal
D5 BT_I2S_SCK VIO B, PD Bluetooth PCM/I2S Bit CLK signal
D6 BT_I2S_SDO VIO DO Bluetooth PCM/I2S output signal
Low power Clock signal
B5 LF_CLK_IN VIO DI, PD External low–power 32.768 kHz clock input
Host wake pins
D4 WOW VIO
SDIO 3.0 interface
D7 SDIO_CLK VIO DI, PU SDIO clock signal Input, Internal Pull-Up
E7 SDIO_CMD VIO B SDIO CMD line signal
C7 SDIO_D0 VIO B SDIO data bus D0
B6 SDIO_D1 VIO B SDIO data bus D1
A6 SDIO_D2 VIO B, PU SDIO data bus D2, Internal Pull-Up
B7 SDIO_D3 VIO B SDIO data bus D3
Pin Reference
Voltage
Pin
Type
OD,
PU
Pin Description
Wake on Wireless. WIFI/BT Wakeup host.
Active high, Internal Pull-Up
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Pin Pin name
Coexistence and control
signals
C3 LTE_UART_RX VIO DI, PU
C4 LTE_UART_TX VIO DO
G5 WL_EN VIO DI, PD WLAN enable (Active high)
G6 BT_EN VIO DI, PD Bluetooth enable (Active high)
RF Antennas
D1 ANT1 A AI, AO
G3 RFU ANT2 NA NA Reserved for Antenna 2.
Power
A1 VDD_3.3V 3.13 V to 3.46 V P Main Input voltage (WIFI & BT)
A2 VDD_3.3V 3.13 V to 3.46 V P Main Input voltage (WIFI & BT)
A3 VDDIO 1.8 V or 3.3 V P Voltage supply for all I/O signals (1.71V - 3.46V)
G1 GND – – Power Ground
A7 GND – – Power Ground
B1 GND – – Power Ground
B2 GND – – Power Ground
C1 GND – – Power Ground
C2 GND – – Power Ground
D2 GND – – Power Ground
E1 GND – – Power Ground
E2 GND – – Power Ground
F1 GND – – Power Ground
F2 GND – – Power Ground
F3 GND – – Power Ground
F4 GND – – Power Ground
G2 GND – – Power Ground
G4 GND – – Power Ground
G7 GND – – Power Ground
Factory use
D3 RFU NC - Reserved for future use. No connect.
E3 RFU NC - Reserved for future use. No connect.
E4 RFU NC - Reserved for future use. No connect.
E5 RFU NC - Reserved for future use. No connect.
E6 RFU NC - Reserved for future use. No connect.
F5 RFU NC - Reserved for future use. No connect.
F6 RFU NC - Reserved for future use. No connect.
F7 RFU NC - Reserved for future use. No connect.
Pin Reference
Voltage
Pin
Type
Pin Description
Secondary UART - LTE coexistence UART RXD
/ AUX UART RXD
Secondary UART - LTE coexistence UART_TXD
/ AUX_UART_TXD
Antenna 1 - Main Antenna for modules with a
single antenna configuration
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LGA Pads Layout
A B C D E F G
1 VDD_3.3V GND GND ANT1 GND GND GND
2 VDD_3.3V GND GND GND GND GND GND
3 VDDIO
BT_TXD
4
5
6 SDIO_D2 SDIO_D1
7 GND SDIO_D3 SDIO_D0
(O)
BT_RXD
(I)
BT_CTS
(I)
BT_RTS
(O)
LF_CLK_IN
(I)
LTE_UART_RX
(I)
LTE_UART_TX
(O)
BT_I2S_WS
(I)
BT_I2S_SDI
(I)
RFU RFU GND RFU (ANT2)
WOW
(OD)
BT_I2S_SCK
(I)
BT_I2S_SDO
(O)
SDIO_CLK
(I)
RFU GND GND
RFU RFU
RFU RFU
SDIO_CMD RFU GND
WL_EN
(I)
BT_EN
(I)
TOP VIEW
WARNING
Reserved pins must not be connected.
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4. POWER SUPPLY
The power supply circuitry and board layout are a very important part in the full product
design and they strongly reflect on the product overall performances, hence read carefully
the requirements and the guidelines that will follow for a proper design.
Power Supply Requirements
There are 2 power supply inputs to the module. The main power supply, connected to
VDD_3.3V input and the VDDIO input, each must fulfil the following requirements:
VDD_3.3V Input Minimum Maximum
Absolute Maximum Voltage -0.3 V 3.65 V
Nominal Supply Voltage 3.3 V -
Normal Operating Voltage Range 3.135 V 3.465 V
VDDIO Input
Absolute Maximum Voltage -0.3 V 4.0 V
Nominal Supply Voltage 1.8V or 3.3V -
Normal Operating Voltage Range 1.71 V 3.46 V
NOTE:
The Maximum Voltage MUST never be exceeded; care must be
taken when designing the application’s power supply section to avoid
Minimum
Maximum
having an excessive voltage drop.
If the voltage drop is exceeding the limits it could lead to degradation
of performance or cause a Power Off of the module.
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(
V
)
(
)
Power Consumption
The below tables provides the typical current consumption values of the module for the
various available modes.
4.2.1. Typical power consumption for WLAN low-power states
Total power
Mode
consumption [mA]
Mode Description
VDDIO = 1.8
Standby 0.2 Deep Sleep
1.3 DTIM=1
Power Save, 2.4GHz
Power Save, 5GHz
4.2.2. Typical Power consumption for WLAN continuous Rx [2.4 GHz]
Rate
11b 1Mbps 60
11b 11Mbps
11g 54Mbps
MCS0 HT20
0.8
0.6 DTIM=10
1.5 DTIM=1
0.9 DTIM=3
0.7 DTIM=10
DTIM=3
Total power consumption [mA]
VDDIO = 1.8V
62
70
67
MCS7 HT20
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4.2.3. Typical Power consumption for WLAN continuous Rx [5 GHz]
Rate
MCS0 HT20 96
MCS7 HT20 94
MCS8 VHT20
MCS0 HT40 94
MCS7 HT40 99
MCS8 VHT40 115
MCS9 VHT40 100
MCS7 VHT80 130
MCS8 VHT80 162
MCS9 VHT80 131
Total power consumption [mA]
VDDIO = 1.8V)
112
4.2.4. Typical Power consumption for WLAN continuous TX [2.4 GHz]
Rate
11b 1Mbps 365
11b 11Mbps 362
11g 54Mbps 340
MCS0 HT20 348
MCS7 HT20 335
Total power consumption [mA]
VDDIO = 1.8V)
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