• Operating temperature: -40ºC to +85ºC (Industrial
grade)
Size
•Small Form Factor: 27 x 16 x 3.1 mm
Evaluation Kit
•Single Band EVK: RS9116X-SB-EVK1
Software Operating Modes
•Hosted mode (n-Link™): Wi-Fi stack, Bluetooth
stack and profiles and all network stacks reside on
the host processor
•Embedded mode (WiSeConnect™): Wi-Fi stack,
TCP/IP stack, IP modules, Bluetooth stack and
some profiles reside in RS9116; Some of the
Bluetooth profiles reside in the host processor
Hosted Mode (n-Link™)
• Available host interfaces: SDIO 2.0 and USB HS
• Application data throughput up to 50 Mbps (Hosted
Mode) in 802.11n with 20MHz bandwidth.
• Host drivers for Linux
• Support for Client mode, Access point mode (Upto
16 clients), Concurrent Client and Access Point
mode, Enterprise Security
•Support for concurrent Wi-Fi, dual-mode
Bluetooth 5
Embedded Mode (WiSeConnect™)
•Available host interface: UART, SPI, SDIO*, and
USB CDC
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* For detailed list of Software features, and available profiles, please refer the Software Reference Manuals, or,
All power and performance numbers are under ideal conditions.
•TCP throughput > 20Mbps over SDIO host
interface with 20 MHz bandwidth
•Support for Embedded Client mode, Access Point
mode (Upto 8 clients), Concurrent Client and
Access Point mode, and Enterprise Security
•Supports advanced security features: WPA/WPA2-
Personal and Enterprise*
Other Applications (Medical, Industrial, Retail, Agricultural, Smart-City, etc.):
Healthcare Tags, Medical patches/pills, Infusion pumps, Sensors/actuators in Manufacturing, Electronic Shelf labels,
Agricultural sensors, Product tracking tags, Smart Meters, Parking sensors, Street LED lighting, Automotive Aftermarket, Security Cameras, etc.
1.3 Description
Silicon Labs' RS9116 single band AA1 module provides a comprehensive multi-protocol wireless connectivity solution
including 802.11 b/g/n (2.4GHz), and dual-mode Bluetooth 5. The modules offers high throughput, extended range
with power-optimized performance. The modules are FCC, IC, and ETSI/CE certified.
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1.1 Features ............................................................................................................................................................... 1
1.5 Device Information ............................................................................................................................................... 4
2 RS9116 AA1 module Pinout and Pin Description ............................................................................................... 7
3.3 DC Characteristics ............................................................................................................................................. 21
3.3.2 Power Sequence .......................................................................................................................................................... 22
3.3.3 Digital Input Output Signals .......................................................................................................................................... 26
3.3.4 USB ............................................................................................................................................................................. 26
3.4 AC Characteristics ............................................................................................................................................. 26
3.4.4 USB ............................................................................................................................................................................. 31
3.5.4 Bluetooth Transmitter Characteristics on High-Performance (HP) RF Chain .................................................................. 42
3.5.5 Bluetooth Transmitter Characteristics on Low-Power (LP) 0 dBm RF Chain .................................................................. 45
3.5.6 Bluetooth Receiver Characteristics on High-Performance (HP) RF Chain ...................................................................... 46
3.5.7 Bluetooth Receiver Characteristics on Low-Power (LP) RF Chain ................................................................................. 48
3.6 Typical Current Consumption ............................................................................................................................. 51
3.6.1 3.3 V ............................................................................................................................................................................ 51
3.6.2 1.85 V .......................................................................................................................................................................... 53
4.2 Module Features ................................................................................................................................................ 56
4.2.2 Bluetooth ...................................................................................................................................................................... 56
4.2.8 Power Management ..................................................................................................................................................... 59
4.2.9 Low power modes ........................................................................................................................................................ 60
5.1.2 Bill of Materials ............................................................................................................................................................. 63
5.2.2 Bill of Materials ............................................................................................................................................................. 66
6.2.1 Return Loss Characteristic of the Antenna .................................................................................................................... 71
6.2.3 Gain Plots .................................................................................................................................................................... 72
8.2.1 Top View ...................................................................................................................................................................... 76
8.2.2 Side View ..................................................................................................................................................................... 77
8.3.1 Packing Information of Modules with Package Codes AA1 ............................................................................................ 79
9 RS9116 AA1 module Certification and Ordering Information .......................................................................... 80
9.1 Certification Information ..................................................................................................................................... 80
9.2 Compliance and Certification ............................................................................................................................. 80
9.2.1 Federal Communication Commission Statement ........................................................................................................... 80
9.2.2 Industry Canada / ISED Statement ............................................................................................................................... 81
9.2.3 CE ............................................................................................................................................................................... 82
9.4 Ordering Information .......................................................................................................................................... 84
The SPI interface is supported only in
WiSeConnect™.
Sleep: HighZ
This pin can be configured by software to
be any of the following
•WLAN_ACTIVE*: Active-
indicate to an external Bluetooth IC
of the 3-wire coexistence interface.
*This pin is intended to act as
WLAN_ACTIVE for wireless coexistence.
It is however not available in the current
firmware. Please contact Silicon Labs to
learn about availability in the future
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This pin can be configured by software to
be any of the following
•BT_ACTIVE*: Active-High signal from
an external Bluetooth IC that it is
transmitting. Part of the 3-wire
coexistence interface.
*This pin is intended to act as BT_ACTIVE
for Bluetooth coexistence. It is however
not available in the current firmware.
Please contact Silicon Labs to learn about
availability in the future versions.
Sleep: HighZ
This pin can be configured by software to
be any of the following
•WAKEUP_FROM_Dev - Used as a
wakeup indication to host from device
•BT_PRIORITY**: Active-high signal
from an external Bluetooth IC that
indicates that the Bluetooth
transmissions are a higher priority.
*For Wake-on-Wireless feature this pin
needs to have a weak pull up resistor
externally.
**This pin is intended to act as
BT_PRIORITY for Bluetooth coexistence.
It is however not available in the current
firmware. Please contact Silicon Labs to
learn about availability in the future
versions.
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when the chip enters (logic low) and
exits (logic high) the ULP Sleep mode.
•EXT_PG_EN: Active-high enable
can be used to control the power
supplies other than Always-ON
VBATT Power Supplies in ULP Sleep
mode.
EUP
Sleep: ULP_WAKEUP
This signal has two functionalities – one
during the bootloading process and one
after the bootloading. During bootloading,
this signal is an active-high input to
indicate that the bootloader should bypass
any inputs from the Host processor and
continue to load the default firmware from
Flash. After bootloading, this signal is an
active-high input to indicate that the
module should wakeup from it's Ultra Low
Power (ULP) sleep mode. The bootloader
bypass functionality is supported only in
WiSeConnect™.
Sleep: XTAL_32KHZ_IN /
SLEEP_IND_FROM_DEV
This pin can be configured by software to
be any of the following
•XTAL_32KHZ_IN: This pin can be
used to feed external clock from a
oscillator.
•SLEEP_IND_FROM_DEV: This signal
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1. "Default" state refers to the state of the device after initial boot loading and firmware loading is complete.
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Description
NC
1, 3, 4, 20, 22, 27, 34,
NA
NA
NA
No connect.
2. "Sleep" state refers to the state of the device after entering Sleep state which is indicated by Active-High "SLEEP_IND_FROM_DEV" signal.
3. Please refer to "RS9116 nLink Technical Reference Manual" for software programming information in hosted mode.
4. Please refer to "RS9116 Wireless SAPI Manual" for software programming information in embedded mode.
5. There are some functionalities, such as SLEEP_IND_FROM_DEV, that are available on multiple pins. However, these pins have other multiplexed functionalities.
Any pin can be used based on the required functionality. Customer has to note the default states before using appropriate pin.
2.2.4 Miscellaneous Pins
Active Reset)
35, 36, 40, 42
Table 4 Miscellaneous Pins
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The POC_IN and RESET_N signals should be controlled from external sources such as R/C circuits, and/or other MCU's GPIOs. However POC_OUT can be connected to
POC_IN, if the supply voltage is 3.3V. Below waveforms show power sequence (Up & Down) requirements under various application needs. Note that below waveforms are
not to scale.
3.3.2.1 Power-Up and Down Sequence with External 1.4V supply and POC_IN
Below diagram shows connections of various power supply voltages, POC_IN and RESET_N. These connections can be used when:
• System PMU (outside RS9116) can provide 1.4V supply, and hence the internal Buck regulator in RS9116 can be disabled.
• The 1.1V supply is still derived from LDO SoC (internal to RS9116).
• POC_IN is controlled externally.
NOTE:
1. Above shown is a typical connection diagram. Some of the supply pins shown above may or may not be present in the IC/Module. Check the Pinout table in this
datasheet and connect accordingly.
2. * = Provide the supply voltages as per the specifications mentioned in this datasheet.
3. ** = USB power supply input connection is required if USB interface is present and used. Else, follow the connection as shown in Reference Schematics.
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1. 3.3V/1.85V/VBATT supply shown above must be connected to the power supply pins of IC/Module. For example, SDIO_IO_VDD, ULP_IO_VDD, UULP_VBATT_1, etc.
2. Above POC_IN waveform is applicable if it is externally driven. Else, that particular waveform can be ignored, and the RESET_N timing can be considered after/before
external power supplies ramp-up/down.
3.3.2.2 Power-Up and Down Sequence with External POC_IN
Below diagram shows connections of various power supply voltages, POC_IN and RESET_N. These connections can be used when:
• System PMU cannot provide 1.4V or 1.1V supplies and the internal buck and LDO of RS9116 are used.
• POC_IN is controlled externally.
NOTE:
1. Above shown is a typical connection diagram. Check the Reference Schematics for connections of other power supplies.
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1. 3.3V/1.85V/VBATT supply shown above must be connected to the power supply pins of IC/Module. For example, SDIO_IO_VDD, ULP_IO_VDD, UULP_VBATT_1, etc.
3.3.2.3 Power-Up and Down Sequence with POC_IN connected internally
Below diagram shows connections of various power supply voltages, POC_IN and RESET_N. The typical applications of this connection can be as followws.
• System cannot provide external 1.4V & 1.1V supplies and the internal buck and LDO of RS9116 are used.
• POC_IN is looped back from POC_OUT.
NOTE:
1. Above shown is a typical connection diagram. Check the Reference Schematics for connections of other power supplies.
2. POC_OUT can be connected to POC_IN if the supply voltage is 3.3V only. Else, POC_IN has to be driven externally.
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•Low frequency 32 KHz clock for sleep manager and RTC
o Internal 32 KHz RC clock is used for applications with low timing accuracy requirements
o 32 KHz crystal clock is used for applications with low timing accuracy requirements
•High frequency 40 MHz clock for the threadArch® processor, baseband subsystem and the radio
The chipsets have integrated internal oscillators including crystal oscillators to generate the required clocks.
Integrated crystal oscillators enable the use of low-cost passive crystal components. Additionally, in a system where
an external clock source is already present, the clock can be reused. The following are the recommended options for
the clocks for different functionalities:
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No significant power consumption
impact on connected power numbers
(<10uA).
Connectivity with low power
Audio Streaming operation
oscillator input on
UULPGPIO
oscillator calibrated
to <200ppm
important for Low-power Audio
Streaming operation (A2DP Source).
(A2DP Source)
There is no impact on sleep/deep-sleep power consumption with/without 32KHz XTAL oscillator clock
32KHz XTAL sources:
Option 1: From Host MCU/MPU LVCMOS rail to rail clock input on UULPGPIO
Option 2: External Xtal oscillator providing LVCMOS rail to rail clock input on UULPGPIO (Nano-drive clock should
not be supplied).
3.4.1.1 32 KHz Clock
The 32 KHz clock selection can be done through software. RC oscillator clock is not suited for high timing accuracy
applications and can increase system current consumption in duty-cycled power modes.
3.4.1.1.1 RC Oscillator
osc
osc_Acc
Table 11 32 KHz RC oscillator
3.4.1.1.2 32 KHz External Oscillator
An external 32 KHz low-frequency clock can be fed through the XTAL_32KHZ_IN functionality.
Figure 6 External 32 KHz oscillator - Rail to Rail
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Load capacitance with 40 MHz internal oscillator is integrated inside the chipset and calibrated. The calibrated value
can be stored in eFuse using calibration software. The module provides the below characteristics.
osc
osc_Acc
Table 13 40 MHz crystal specifications
3.4.2 SDIO 2.0 Slave
3.4.2.1 Full Speed Mode
sdio
Table 14 AC Characteristics - SDIO 2.0 Slave Full Speed Mode
Figure 7 Interface Timing Diagram for SDIO 2.0 Slave Full Speed Mode
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Figure 15 Interface Timing Diagram for I2S Slave Mode
3.4.8 GPIO pins
Description
1(fast mode)
1(fast mode)
0(standard mode)
0(standard mode)
Table 27 AC Characteristics - GPIO Pins
3.5 RF Characteristics
•All WLAN Sensitivity numbers and Adjacent channel numbers are at < 10% PER limit. Packet sizes are 1024
bytes for 802.11 b/g data rates and 4096 bytes for 802.11n data rates.
• For WLAN ACI cases, the desired signal power is 3dB above standard defined sensitivity level.
• For Bluetooth C/I cases, the desired signal power is 3dB above standard defined sensitivity level.
• For support of 1.85 V on RF/PA, please contact Silicon Labs.
Unless otherwise stated, the specifications in this section apply when the operating conditions are within the
limits specified in the Recommended Operating Conditions
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1. Up to 2dB variation in power from channel-to-channel. To meet FCC emission limits, edge channels (1 and
TA = 25°C. Parameters are measured at antenna port on channel 1(2412 MHz)
**Please Note that the below efficiency values are at 3.6V applied on the Buck Converter. If a better voltage is
applied, then customer can expect better efficiencies.
3.6.2.1 WLAN
Tx Power = 8dBm
Tx Power = 8dBm
3.6V
69
67
1.85V
121
117.3
mA
mA
Tx Power = 8dBm
67
117.3
mA
Tx Power = 8dBm
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RS9116 AA1 module is based on Silicon Labs’ RS9116 ultra-low-power, single spatial stream, 802.11n + BT/BLE5.0
Convergence SoC. The RS9116 AA1 module provides low-cost CMOS integration of a multi-threaded MAC processor
(threadArch®), baseband digital signal processing, analog front-end, crystal oscillator, calibration eFuse, 2.4GHz RF
transceiver, integrated power amplifier, match, bandpass filters(BPF), antenna diversity switch (DPDT) and Quad-SPI
Flash thus providing a fully-integrated solution for a range of hosted and embedded wireless applications. With Silicon
Labs' embedded four-threaded processor and on-chip ROM and RAM, these chipsets enable integration into lowcost and zero host load applications. With an integrated PMU and support for a variety of digital peripherals, RS9116
enables very low-cost implementations for wireless hosted and embedded applications. It can be connected to a host
processor through SDIO, USB, SPI or UART interfaces. Wireless firmware upgrades and provisioning are supported.
4.2 Module Features
4.2.1 WLAN
• Compliant to single-spatial stream IEEE 802.11 b/g/n with single band support
• Support for 20 MHz channel bandwidth
• Transmit power up to +18 dBm with integrated PA
• Receive sensitivity as low as -96 dBm
• Data Rates:- 802.11b: Upto11 Mbps ; 802.11g: Upto54 Mbps ; 802.11n: MCS0 to MCS7
• Operating Frequency Range:- 2412 MHz – 2484 MHz
4.2.1.1 MAC
• Conforms to IEEE 802.11b/g/n/j standards for MAC
• Dynamic selection of fragment threshold, data rate, and antenna depending on the channel statistics
• Hardware accelerators for WEP 64/128-bit and AES
• WPA, WPA2, and WMM support
• AMPDU and AMSDU aggregation for high performance
• Firmware downloaded from host based on application
• Hardware accelerators for DH (for WPS)
4.2.1.2 Baseband Processing
• Supports DSSS for 1, 2 Mbps and CCK for 5.5, 11 Mbps
• Supports all OFDM data rates (6, 9, 12, 18, 24, 36, 48, 54 Mbps, MCS0 to MCS7), and Short GI in Hosted mode
• Supports IEEE 802.11n single-stream modes with data rates up to 150 Mbps
• Supports long, short, and HT preamble modes
• High-performance multipath compensation in OFDM, DSSS, and CCK modes
• Integrated 2.4 GHz transceiver with highly programmable operating modes
• Internal oscillator with 40 MHz crystal
• Inbuilt automatic boot up and periodic calibration enables ease of integration
4.2.4 Host Interfaces
•SDIO
o Version 2.0-compatible
o Supports SD-SPI, 1-bit, and 4-bit SDIO modes
o Operation up to a maximum clock speed of 50 MHz
• SPI Interface
o Operation up to a maximum clock speed of 100 MHz
• USB 2.0
o Supports 480Mbps “High Speed” (HS), 12Mbps “Full Speed” (FS) and 1.5Mbps “Low Speed” (LS) serial
data transmission
o Support USB CDC and device mode
•UART
o Supports variable baud rates between 9600 and 3686400 bps
o AT command interface for configuration and data transmission/reception
NOTE: Hosted mode (n-Link) supports USB 2.0 and SDIO. Embedded Mode (WiSeConnect) supports SPI, USB
CDC, and UART.
4.2.4.1 Auto Host detection
RS9116 detects the host interface automatically after connecting to respective host controllers like SDIO, SPI, UART,
USB and USB-CDC. SDIO/SPI host interface is detected through the hardware packet exchanges. UART host
interface is detected through the software based-on the received packets on the UART interface. USB-Device mode
interface is detected through the hardware based-on VBUS signal level. The host interface detection between USB &
USB-CDC will be taken care by the firmware based on the USB CDC SEL GPIO. This Host configuration is stored in
always-on domain registers after detection (on power up) and reused this information at each wakeup.
4.2.5 Wireless Coexistence Manager
• Arbitration between Wi-Fi, Bluetooth, and Bluetooth Low Energy
• Application aware arbitration
• Adaptive frequency hopping (AFH) in Bluetooth is based on WLAN channel usage
• Pre inter thread interrupts generation for radio switching
• QoS assurance across different traffics
4.2.6 Software
The RS9116 software package supports 802.11 b/g/n Client, Access Point (Up to 16 clients), Concurrent Client and
Access Point mode, Enterprise Security dual-mode BT 5.0 functionality on a variety of host platforms and operating
systems. The software package includes complete firmware, reference drivers, application profiles and configuration
graphical user interface (GUI) for Linux operating systems. The Wi-Fi driver has support for a simultaneous access
point, and client mode. Bluetooth host driver utilizes Opensource host stacks like BlueZ for Linux. The
application layer supports all profiles supported by BlueZ on Linux. It has a wireless coexistence manager to arbitrate
between protocols.
The RS9116 software package is available in two flavors
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• Bluetooth inbuilt stack support for L2CAP, RFCOMM, SDP, SPP, GAP
• Bluetooth profile support* for GAP, SDP, L2CAP, RFCOMM, SPP, GATT, PBAP
• Wireless firmware upgrade and provisioning
• Support for concurrent Wi-Fi, dual-mode Bluetooth 5
Contact Silicon Labs for availability.
4.2.7 Security
RS9116 supports multiple levels of security capabilities available for the development of IoT devices.
• Accelerators: AES128/256 in Embeded Mode
• WPA/WPA2-Personal, WPA/WPA2 Enterprise for Client*
• Secure Firmware upgrade* with backup
Contact Silicon Labs for availability.
4.2.8 Power Management
The RS9116 chipsets have an internal power management subsystem, including DC-DC converters and linear
regulators. This subsystem generates all the voltages required by the chipset to operate from a wide variety of input
sources.
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o Wide input voltage range (1.85 to 3.6V) on pin UULP_VBATT_1 and UULP_VBATT_2
o Output - 1.05V
• LDO SOC - Linear regulator for digital blocks
o Input - 1.4V from LC DC-DC or external regulated supply on pin VINLDOSOC
o Output - 1.15V and 300mA maximum load on pin VOUTLDOSOC
• LDO RF and AFE - Linear regulator for RF and AFE
o Input - 1.4V from LC DC-DC or external regulated supply on pin RF_AVDD
o Output - 1.1V and 20mA maximum load on pin VOUTLDOAFE
• LDO FLASH - Linear regulator for internal and external Flash
o Input - Wide input voltage range (1.85 to 3.6V) on pin VINLDO1P8
o Output - 1.8V and 20mA maximum load on pin VOUTLDO1P8
4.2.9 Low power modes
It supports Ultra-low power consumption with multiple power modes to reduce the system energy consumption.
• Dynamic Voltage and Frequency Scaling
• Low Power (LP) mode with only the host interface active
• Deep sleep (ULP) mode with only the sleep timer active – with and without RAM retention
• Wi-Fi standby associated mode with automatic periodic wake-up
• Automatic clock gating of the unused blocks or transit the system from Normal to LP or ULP modes
4.2.9.1 ULP mode
In Ultra Low Power mode, the deep sleep manager has control over the other subsystems and processors and
controls their active and sleep states. During deep sleep, the always-on logic domain operates on a lowered supply
and a 32 KHz low-frequency clock to reduce power consumption. The ULP mode supports the following wake-up
options:
• Timeout wakeup - Exit sleep state after programmed timeout value.
• GPIO Based Wakeup: Exit sleep state when GPIO goes High/Low based on programmed polarity.
• Analog Comparator Based wakeup - Exit sleep state on an event at the analog comparator.
• RTC Timer wakeup - Exit Sleep state on timeout of RTC timer
• WatchDog Interrupt based wakeup - Exit Sleep state upon watchdog interrupt timeout.
4.2.9.2 LP mode
In Low Power mode, Network processor maintains system state and gate all internal high frequency clocks. But host
interface is ready to accept any command from host controller.
The LP mode supports the following wake-up options:
•Host Request - Exit sleep state on a command from HOST controller. whenever a command from the host is
received, the processor serves the request with minimum latency and the clock is gated immediately after the
completion of the operation to reduce power consumption
•GPIO based wakeup - Wakeup can be initiated through a GPIO pin
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•Timeout wakeup - Exit sleep state after the programmed timeout value
4.2.10 Memory
4.2.10.1 On-chip memory
The threadArch® processor has the following memory:
• On-chip SRAM for the wireless stack.
• 512Kbytes of ROM which holds the Secure primary bootloader, Network Stack, Wireless stacks and security
functions.
• 16Kbytes of Instruction cache enabling eXecute In Place (XIP) with quad SPI flash memory.
• eFuse of 512 bytes (used to store primary boot configuration, security and calibration parameters)
4.2.10.2 Serial Flash
The RS9116 utilizes a serial Flash to store processor instructions and other data. The SPI Flash Controller is a 1/2/4wired interface for serial access of data from Flash. It can be used in either Single, Dual or Quad modes. Instructions
are read using the Direct Fetch mode while data transfers use the Indirect Access mode. The SPI Flash Controller in
RS9116 has been designed with programmable options for most of the single and multi-bit operations. RS9116 AA1
module has 4 Mbytes internal flash memory.
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1. The supplies can be driven by different voltage sources within the recommended operating conditions specified in Specifications section.
S.No
Quantity
Reference
Value
Description
JEDEC
Manufacturer
Part Number
1 1 C1
10uF
CAP CER 10UF 10V X5R
0805
Murata
GRM21BR61A106KE19L
2 1 C2
1uF
CAP CER 1UF 10V 10% X5R
0402
Murata
GRM155R61A105KE15D
3 1 C3
0.1uF
CAP CER 0.1UF 10V X5R
0402
Murata
GRM155R61A104KA01D
4 1 R1
33E
RES SMD 33 OHM 5% 1/10W
0402
Panasonic
ERJ-2GEJ330X
Figure 16 Schematics with SDIO/SPI/UART Host Interface
2. SDIO_IO_VDD can be driven by a different source irrespective of other sources to support different interfaces.
3. In the SDIO mode, pull-up resistors should be present on SDIO_CMD & SDIO Data lines as per the SDIO physical layer specification, version 2.0
4. In SPI mode, ensure that the input signals, SPI_CS and SPI_CLK are not floating when the device is powered up and reset is deasserted. This can be done by
ensuring that the host processor configures its signals (outputs) before deasserting the reset. SPI_INTR is the interrupt signal driven by the slave device. This signal
may be configured as Active-high or Active-low. If it is active-high, an external pull-down resistor may be required. If it is active-low, an external pull-up resistor may
be required. This resistor can be avoided if the following action needs to be carried out in the host processor
a. To use the signal in the Active-high or Active-low mode, ensure that, during the power up of the device, the Interrupt is disabled in the Host processor before
deasserting the reset. After deasserting the reset, the Interrupt needs to be enabled only after the SPI initialization is done and the Interrupt mode is
programmed to either Active-high or Active-low mode as required.
b. The Host processor needs to be disable the interrupt before the ULP Sleep mode is entered and enable it after SPI interface is reinitialized upon wakeup
from ULP Sleep.
5. In UART mode, ensure that the input signals, UART_RX and UART_CTS are not floating when the device is powered up and reset is deasserted. This can be done
by ensuring that the host processor configures its signals (outputs) before deasserting the reset.
6. Resistor "R1" need not be populated if UART is used as Host Interface.
5.1.2 Bill of Materials
0805
0402
0402
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The following guidelines outline the integration of the AA1 module:-
1. The following Supply Pins needs to be STAR routed from the Supply Source
a. VIN_3P3
b. UULP_VBATT_1
c. SDIO_IO_VDD
2. The module has 27 Ground pads, with two different sizes as mentioned below. Note that all ground pads are
present around the center of the module on the bottom side.
a. Provide one ground copper pad of size 3.60mm x 3.60mm and 26 ground copper pads of size 1.4mm x
1.4 mm on the top side of the PCB. Make sure to open the solder mask in this area so that the Cu is
exposed.
b. Provide one ground copper pad of size 3.60mm x 3.60mm or higher on the bottom side of the PCB and
keep open the solder mask in this area so that the Cu is exposed.
c. The RF ground pad (pin number 53) should have 16 Vias, each of which should have a pad size of 24mil
in diameter and a 16mil drill.
3. There should be no metal planes or traces in the region under the PCB antenna and beside it for at least 3 mm.
The module should be placed such that the antenna portion is on the edge of the PCB.
Figure 18 PCB Antenna Guidelines
4. For USB, it is recommended that the components and their values in the BoM be adhered to.
5. It is highly recommended that the two USB differential signals (USB_DP and USB_DN) be routed in parallel with a
spacing (say, a) which achieves 90 Ω of differential impedance, 45 Ω for each trace.
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6. In order to minimize crosstalk between the two USB differential signals (USB_DP and USB_DN) and other signal
traces routed close to them, it is recommended that a minimum spacing of 3 x a be maintained for low-speed nonperiodic signals and a minimum spacing of 7 x a be maintained for high-speed periodic signals.
Figure 20 Spacing for Low-speed and High-speed signals around USB_DP/USB_DN
7. It is recommended that the total trace length of the signals between the RS9116 module and the USB connector
be less than 450mm.
8. If the USB high-speed signals are routed on the Top layer, best results will be achieved if Layer2 is a ground
plane. Furthermore, there must be only one ground plane under high-speed signals in order to avoid the highspeed signals crossing to another ground plane.
Figure 21 USB Signals and the Ground Plane
9. Each GND pin must have a separate GND via.
10. All decoupling capacitors placement must be as much close as possible to the corresponding power pins, and the
trace lengths as short as possible.
11. Ensure all power supply traces widths are sufficient enough to carry corresponding currents.
12. Add GND copper pour underneath IC/Module in all layers, for better thermal dissipation.
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The details of u.FL connector for external antenna :-
The module with integrated antenna comes with an option to connect an external antenna through a u.FL
connector. The choice between the on board antenna and the external antenna can be made through a software
command. The figures below show the u.FL connector integrated on the module. The connector on the external
antenna should be pushed down to fit into the u.FL connector connected to the module.
The RS9116 Single band modules have been certified for FCC, IC and ETSI/CE with Silicon Labs’ Single-band PCB
antenna. The sections which follow list down the performance specifications of the PCB antenna.
6.2 PCB Antenna Performance Specifications
6.2.1 Return Loss Characteristic of the Antenna
Figure 24 Return Loss Characteristic of the Antenna
6.2.2 Module Reference Orientation
Figure 25 Module Reference Orientation
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7 RS9116 AA1 module Storage, Handling and Soldering Conditions
7.1 Recommended Reflow Profile
Figure 29 Reflow Diagram
The profile shown is based on SAC 305 solder (3% silver, 0.5% copper). We recommend the ALPHA OM-338
lead-free solder paste. This profile is provided mainly for guidance. The total dwell time depends on the thermal
mass of the assembled board and the sensitivity of the components on it. The recommended belt speed is 5060 Cm/Min. A finished module can go through two more reflow processes.
7.2 Baking Instructions
The packages are moisture sensitive (MSL3 grade) and devices must be handled appropriately. After the devices are
removed from their vacuum-sealed packs, they should be taken through reflow for board assembly within 168 hours at
room conditions or stored at under 10% relative humidity. If these conditions are not met, the devices must be baked
before reflow. The recommended baking time is nine hours at 125°C.
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8.3.1 Packing Information of Modules with Package Codes AA1
The modules are packaged and shipped in Trays.
Each tray for the AA1 packages can accommodate 70 modules. The mechanical details of the tray for the AA1
package are given in the figure below.
Figure 32 Packing Information of Modules with Package Codes AA1
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9 RS9116 AA1 module Certification and Ordering Information
9.1 Certification Information
This section will outline the regulatory certification information for the RS9116 modules for the countries listed below.
This information will be updated when available.
1. United States
2. Canada
3. Europe
4. Japan
5. Other Regulatory Jurisdictions
The RS9116 SIngle Band AA1 modules from Redpine Signals have undergone modular certification for FCC, IC and
CE/ETSI . Note that any changes to the module’s configuration including (but not limited to) the programming values
of the RF Transceiver and Baseband can cause the performance to change beyond the scope of the certification.
These changes, if made, may result in the module having to be certified afresh. The table below lists the details of the
regulatory certifications. The certification for geographies not listed in the table is in progress.
9.2 Compliance and Certification
M15SB module is FCC/IC/CE certified. This section outlines the regulatory information for the M15SB module. This
allows integrating the module in an end product without the need to obtain subsequent and separate approvals from
these regulatory agencies. This is valid in the case no other intentional or un-intentional radiator components are
incorporated into the product and no change in the module circuitry. Without these certifications, an end product
cannot be marketed in the relevant regions.
•RF Testing Software is provided for any end product certification requirements.
9.2.1 Federal Communication Commission Statement
Any changes or modifications not expressly approved by the party responsible for compliance could void your
authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
9.2.1.1 RF exposure statements
1. This Transmitter must not be co‐located or operating in conjunction with any other antenna or transmitter.
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2. This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator
and your body or nearby persons.
For a host using a certified modular with a standard fixed label, if (1) the module’s FCC ID is not visible when installed
in the host, or (2) if the host is marketed so that end users do not have straightforward commonly used methods for
access to remove the module so that the FCC ID of the module is visible; then an additional permanent label referring
to the enclosed module:“Contains Transmitter Module FCC ID: XF6-M15SB” or “Contains FCC ID: XF6-M15SB” must
be used. The host OEM user manual must also contain clear instructions on how end users can find and/or access
the module and the FCC ID.
9.2.1.2 Labeling and User Information
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation.
9.2.2 Industry Canada / ISED Statement
This product meets the applicable Innovation, Science and Economic Development Canada technical specifications.
Ce produit repond aux specifications techniques applicables a l'innovation, Science et Developpement economique
Canada.
9.2.2.1 Radiation Exposure Statement
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with minimum distance 20cm between the radiator & your body.
Cet équipement est conforme aux limites d’exposition aux rayonnements IC établies pour un environnement non
contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de
rayonnement et votre corps.
This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:
1. This device may not cause interference, and
2. This device must accept any interference, including interference that may cause undesired operation of the
device.
Le present appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence.
L’exploitation est autorisee aux deux conditions suivantes :
1. l’appareil ne doit pas produire de brouillage;
2. l’utilisateur de l’appareil doit accepter tout brouillage radioelectrique subi, meme si le brouillage est susceptible
d’en compromettre le fonctionnement.
9.2.2.2 Labeling and User Information
Innovation, Science and Economic Development Canada ICES003 Compliance Label: CAN ICES-3 (B)/NMB3(B)
The M15SB module has been labeled with its own IC ID number (8407A-M15SB) and if the IC ID is not visible
when the module is installed inside another device, then the outside of the finished product into which the
module is installed must also display a label referring to the enclosed module. This exterior label can use
following wording: Contains Transmitter Module IC ID: 8407A-M15SB or Contains IC ID: 8407A-M15SB User
manuals for license-exempt radio apparatus shall contain the above mentioned statement or equivalent notice
in a conspicuous location in the user manual or alternatively on the device or both
Warning:
1. The device for operation in the band 5150–5250 MHz is only for indoor use to reduce the potential for harmful
interference to co-channel mobile satellite systems;
2. For devices with detachable antenna(s), the maximum antenna gain permitted for devices in the bands 5250-5350
MHz and 5470-5725 MHz shall be such that the equipment still complies with the e.i.r.p. limit;
3. For devices with detachable antenna(s), the maximum antenna gain permitted for devices in the band 5725-5850
MHz shall be such that the equipment still complies with the e.i.r.p. limits specified for point-to-point and nonpoint-to-point operation as appropriate; and
The high-power radars are allocated as primary users (i.e. priority users) of the bands 5250-5350 MHz and 56505850 MHz and that these radars could cause interference and/or damage to LE-LAN devices.
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DFS (Dynamic Frequency Selection) products that operate in the bands 5250- 5350 MHz, 5470-5600MHz, and
5650-5725MHz.
This device is not capable of transmitting in the band 5600-5650 MHz in Canada.
Avertissement:
1. Le dispositif fonctionnant dans la bande 5150-5250 MHz est réservé uniquement pour une utilisation à l’intérieur
afin de réduire les risques de brouillage préjudiciable aux systèmes de satellites mobiles utilisant les mêmes
canaux;
2. Le gain maximal d’antenne permis pour les dispositifs avec antenne(s) amovible(s) utilisant les bandes 5250-5350
MHz et 5470-5725 MHz doit se conformer à la imitation P.I.R.E.;
3. Le gain maximal d’antenne permis pour les dispositifs avec antenne(s) amovible(s) utilisant la bande 5725-5850
MHz doit se conformer à la limitation P.I.R.E spécifiée pour l’exploitation point à point et non point à point, selon le
cas.
En outre, les utilisateurs devraient aussi être avisés que les utilisateurs de radars de haute puissance sont
désignés utilisateurs principaux (c.-à-d., qu’ils ont la priorité) pour les bandes 5250-5350 MHz et 5650-5850 MHz
et que ces radars pourraient causer du brouillage et/ou des dommages aux dispositifs LAN-EL.
Les produits utilisant la technique d’atténuation DFS (sélection dynamique des réquences) sur les bandes 52505350 MHz, 5470-5600MHz et 5650-5725MHz.
Cet appareil ne peut pas émettre dans la bande 5600-5650 MHz au Canada.
9.2.3 CE
M15SB is in conformity with the essential requirements and other relevant requirements of the R&TTE Directive
(1999/5/EC). The product is conformity with the following standards and/or normative documents.
• EMC (immunity only) EN 301 489-17 V.2.2.1 in accordance with EN 301 489-1 V1.9.2
Telefication, operating as Conformity Assessment Body (CAB ID Number:201) with respect to Japan, declares that
the M15SB complies with Technical Regulations Conformity Certification of specified Radio equipment (ordinance of
MPT No 37,1981)
• The validity of this Certificate is limited to products, which are equal to the one examined in the type-examination
• when the manufacturer (or holder of this certificate) is placing the product on the Japanese market, the product
must affixed with the following Specified Radio Equipment marking R201-190234
9.2.5 Qualified Antenna Types for M15SB
This device has been designed to operate with the antennas listed below. Antennas not included in this list or having a
gain greater than listed gains in each region are strictly prohibited for use with this device. The required antenna
impedance is 50 ohms.
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Any antenna that is of the same type and of equal or less directional gain can be used without a need for retesting. To
reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the
equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication. Using
an antenna of a different type or gain more than certified gain will require additional testing.
9.2.6 Module Marking Information
The figure and table below illustrates the marking on the Single band module, and explains the marking on the
module.
Figure 33 Module Marking Information
modules
to the Part Ordering Section for more
details.
modules.
WW – Week of manufacture
YY – Year of manufacture
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Silicon Labs offers a set of documents which provide further information required for evaluating, and developing
products and applications using RS9116. These documents are available in RS9116 Document Libraryon the Silicon
Labs website. The documents include information related to Software releases, Evaluation Kits, User Guides,
Programming Reference Manuals, Application Notes, and others.
For further assistance, you can contact Silicon Labs Technical Support here.
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