Quectel Wireless Solutions 201907BC66NA Users Manual
BC66-NA Hardware
Design
LPWA Module Series
Rev. BC66-NA_Hardware_Design_V1.0
Date: 2019-04-08
Status: Preliminary
www.quectel.com
LPWA Module Series
BC66-NA Hardware Design
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Copyright © Quectel Wireless Solutions Co., Ltd. 2019. All rights reserved.
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About the Document
History
Revision Date Author Description
1.0 2019-04-08
Speed SUN/
Lewis SHEN
Initial
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Contents
About the Document ................................................................................................................................ 2
Contents .................................................................................................................................................... 3
Table Index ............................................................................................................................................... 5
Figure Index .............................................................................................................................................. 6
1 Introduction ....................................................................................................................................... 7
1.1. Safety Information .................................................................................................................... 8
2 Product Concept ............................................................................................................................. 13
2.1. General Description ................................................................................................................ 13
2.2. Key Features .......................................................................................................................... 14
2.3. Functional Diagram ................................................................................................................ 15
2.4. Development Board ................................................................................................................ 16
3 Application Interfaces ..................................................................................................................... 17
3.1. General Description ................................................................................................................ 17
3.2. Pin Assignment ....................................................................................................................... 18
3.3. Pin Description ....................................................................................................................... 19
3.4. Operating Modes .................................................................................................................... 22
3.5. Power Saving Mode (PSM) .................................................................................................... 23
3.6. Power Supply ......................................................................................................................... 25
3.6.1. Power Supply Pins ....................................................................................................... 25
3.6.2. Reference Design for Power Supply ............................................................................ 26
3.7. Power up/Power down Scenarios ........................................................................................... 26
3.7.1. Turn on ........................................................................................................................ 26
3.7.2. Turn off ........................................................................................................................ 28
3.7.3. Reset the Module ......................................................................................................... 29
3.8. USB Interface ......................................................................................................................... 30
3.9. UART Interfaces ..................................................................................................................... 31
3.9.1. Main UART Port ........................................................................................................... 32
3.9.2. Debug UART Port ........................................................................................................ 33
3.9.3. Auxiliary UART Port ..................................................................................................... 33
3.9.4. UART Application ......................................................................................................... 34
3.10. USIM Interface ....................................................................................................................... 36
3.11. ADC Interface* ....................................................................................................................... 38
3.12. RI Behaviors ........................................................................................................................... 38
3.13. Network Status Indication ....................................................................................................... 39
4 Antenna Interface ............................................................................................................................ 40
4.1. Pin Definition .......................................................................................................................... 40
4.2. Operating Frequencies ........................................................................................................... 40
4.3. RF Antenna Reference Design ............................................................................................... 41
4.4. Reference Design of RF Layout ............................................................................................. 42
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4.5. Antenna Requirements ........................................................................................................... 44
4.6. RF Output Power .................................................................................................................... 45
4.7. RF Receiving Sensitivity ......................................................................................................... 46
4.8. Recommended RF Connector for Antenna Installation ........................................................... 47
5 Electrical and Reliability Characteristics ...................................................................................... 49
5.1. Operation and Storage Temperatures ..................................................................................... 49
5.2. Current Consumption ............................................................................................................. 49
5.3. Electrostatic Discharge ........................................................................................................... 51
6 Mechanical Dimensions.................................................................................................................. 53
6.1. Mechanical Dimensions of the Module ................................................................................... 53
6.2. Recommended Footprint ........................................................................................................ 55
6.3. Top and Bottom Views of the Module ..................................................................................... 56
7 Storage, Manufacturing and Packaging ........................................................................................ 57
7.1. Storage ................................................................................................................................... 57
7.2. Manufacturing and Soldering .................................................................................................. 58
7.3. Packaging ............................................................................................................................... 59
7.3.1. Tape and Reel Packaging ............................................................................................ 59
8 Appendix A References .................................................................................................................. 61
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Table Index
TABLE 1: FREQUENCY BANDS OF BC66-NA MODULE ................................................................................ 13
TABLE 2: BC66-NA KEY FEATURES ............................................................................................................... 14
TABLE 3: I/O PARAMETERS DEFINITION ....................................................................................................... 19
TABLE 4: PIN DESCRIPTION ........................................................................................................................... 19
TABLE 5: OVERVIEW OF OPERATING MODES ............................................................................................. 22
TABLE 6: POWER SUPPLY PINS ..................................................................................................................... 25
TABLE 7: PWRKEY PIN .................................................................................................................................... 26
TABLE 8: RESET PIN ........................................................................................................................................ 29
TABLE 9: PIN DEFINITION OF USB INTERFACE ........................................................................................... 30
TABLE 10: PIN DEFINITION OF UART INTERFACES ..................................................................................... 32
TABLE 11: PIN DEFINITION OF USIM INTERFACE ........................................................................................ 36
TABLE 12: PIN DEFINITION OF ADC INTERFACE ......................................................................................... 38
TABLE 13: RI SIGNAL STATUS ........................................................................................................................ 38
TABLE 14: MODULE STATUS INDICATED BY NETLIGHT ............................................................................. 39
TABLE 15: PIN DEFINITION OF NB-IOT ANTENNA INTERFACE ................................................................... 40
TABLE 16: MODULE OPERATING FREQUENCIES ........................................................................................ 40
TABLE 17: ANTENNA CABLE INSERTION LOSS REQUIREMENTS ............................................................. 44
TABLE 18: REQUIRED ANTENNA PARAMETERS .......................................................................................... 44
TABLE 19: RF CONDUCTED OUTPUT POWER ............................................................................................. 45
TABLE 20: RECEIVING SENSITIVITY (WITH RF RETRANSMISSIONS) ....................................................... 46
TABLE 21: OPERATION AND STORAGE TEMPERATURES .......................................................................... 49
TABLE 22: MODULE CURRENT CONSUMPTION (3.3V VBAT POWER SUPPLY) ........................................ 50
TABLE 23: ELECTROSTATIC DISCHARGE CHARACTERISTICS (25ºC, 45% RELATIVE HUMIDITY) ........ 52
TABLE 24: RECOMMENDED THERMAL PROFILE PARAMETERS ............................................................... 58
TABLE 25: RELATED DOCUMENTS ................................................................................................................ 61
TABLE 26: TERMS AND ABBREVIATIONS ...................................................................................................... 61
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Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 16
FIGURE 2: PIN ASSIGNMENT ......................................................................................................................... 18
FIGURE 3: MODULE OPERATING MODES .................................................................................................... 23
FIGURE 4: MODULE POWER CONSUMPTION IN DIFFERENT MODES ...................................................... 24
FIGURE 5: TIMING OF WAKING UP MODULE FROM PSM ........................................................................... 25
FIGURE 6: REFERENCE CIRCUIT FOR POWER SUPPLY ............................................................................ 26
FIGURE 7: TURN ON THE MODULE USING DRIVING CIRCUIT ................................................................... 27
FIGURE 8: TURN ON THE MODULE USING KEYSTROKE ........................................................................... 27
FIGURE 9: POWER UP TIMING ....................................................................................................................... 27
FIGURE 10: POWER DOWN TIMING (POWER OFF BY AT COMMAND) ...................................................... 28
FIGURE 11: POWER DOWN TIMING (POWER OFF BY DISCONNECTING VBAT) ...................................... 28
FIGURE 12: REFERENCE CIRCUIT OF RESET BY USING DRIVING CIRCUIT ........................................... 29
FIGURE 13: REFERENCE CIRCUIT OF RESET BY USING BUTTON ........................................................... 29
FIGURE 14: RESET TIMING ............................................................................................................................. 30
FIGURE 15: USB INTERFACE REFERENCE DESIGN ................................................................................... 31
FIGURE 16: REFERENCE DESIGN FOR MAIN UART PORT ........................................................................ 33
FIGURE 17: REFERENCE DESIGN OF DEBUG UART PORT ....................................................................... 33
FIGURE 18: REFERENCE DESIGN OF AUXILIARY UART PORT .................................................................. 34
FIGURE 19: REFERENCE CIRCUIT WITH VOLTAGE LEVEL TRANSLATOR CHIP ...................................... 34
FIGURE 20: REFERENCE CIRCUIT WITH TRANSISTOR CIRCUIT .............................................................. 35
FIGURE 21: SKETCH MAP FOR RS-232 INTERFACE MATCH ...................................................................... 35
FIGURE 22: REFERENCE CIRCUIT FOR USIM INTERFACE WITH A 6-PIN USIM CARD CONNECTOR ... 37
FIGURE 23: BEHAVIORS OF RI WHEN A URC OR SMS MESSAGE IS RECEIVED ..................................... 39
FIGURE 24: REFERENCE DESIGN OF NETLIGHT ........................................................................................ 39
FIGURE 25: REFERENCE DESIGN OF NB-IOT ANTENNA INTERFACE ...................................................... 42
FIGURE 26: MICROSTRIP LINE DESIGN ON A 2-LAYER PCB ...................................................................... 42
FIGURE 27: COPLANAR WAVEGUIDE LINE DESIGN ON A 2-LAYER PCB .................................................. 43
FIGURE 28: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 3 AS REFERENCE
GROUND) .................................................................................................................................................. 43
FIGURE 29: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 4 AS REFERENCE
GROUND) .................................................................................................................................................. 43
FIGURE 30: DIMENSIONS OF THE U.FL-R-SMT CONNECTOR (UNIT: MM) ................................................ 47
FIGURE 31: MECHANICALS OF U.FL-LP CONNECTORS ............................................................................. 47
FIGURE 32: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ........................................................... 48
FIGURE 33: TOP VIEW OF THE MODULE ...................................................................................................... 56
FIGURE 34: BOTTOM VIEW OF THE MODULE .............................................................................................. 56
FIGURE 35: TAPE DIMENSIONS (UNIT: MM) .................................................................................................. 60
FIGURE 36: REEL DIMENSIONS (UNIT: MM) ................................................................................................. 60
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1 Introduction
This document defines the BC66-NA module and describes its air interface and hardware interface which
are connected with the customers’ applications.
This document can help customers quickly understand module interface specifications, electrical and
mechanical details, as well as other related information of the module. Associated with application notes
and user guides, customers can use BC66-NA to design and set up mobile applications easily.
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1.1. Safety Information
The following safety precautions must be observed during all phases of the operation, such as usage,
service or repair of any cellular terminal or mobile incorporating BC66-NA module. Manufacturers of the
cellular terminal should send the following safety information to users and operating personnel, and
incorporate these guidelines into all manuals supplied with the product. If not so, Quectel assumes no
liability for customers’ failure to comply with these precautions.
Full attention must be given to driving at all times in order to reduce the risk of an
accident. Using a mobile while driving (even with a handsfree kit) causes
distraction and can lead to an accident. Please comply with laws and regulations
restricting the use of wireless devices while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. The operation
of wireless appliances in an aircraft is forbidden to prevent interference with
communication systems. If the device offers an Airplane Mode, then it should be
enabled prior to boarding an aircraft. Please consult the airline staff for more
restrictions on the use of wireless devices on boarding the aircraft.
Wireless devices may cause interference on sensitive medical equipment, so
please be aware of the restrictions on the use of wireless devices when in
hospitals, clinics or other healthcare facilities.
Cellular terminals or mobiles operating over radio signals and cellular network
cannot be guaranteed to connect in all possible conditions (for example, with
unpaid bills or with an invalid (U)SIM card). When emergent help is needed in such
conditions, please remember using emergency call. In order to make or receive a
call, the cellular terminal or mobile must be switched on in a service area with
adequate cellular signal strength.
The cellular terminal or mobile contains a transmitter and receiver. When it is ON, it
receives and transmits radio frequency signals. RF interference can occur if it is
used close to TV set, radio, computer or other electric equipment.
In locations with potentially explosive atmospheres, obey all posted signs to turn
off wireless devices such as your phone or other cellular terminals. Areas with
potentially explosive atmospheres include fuelling areas, below decks on boats,
fuel or chemical transfer or storage facilities, areas where the air contains
chemicals or particles such as grain, dust or metal powders, etc.
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1.2. FCC Certification Requirements.
According to the definition of mobile and fixed device is described in Part 2.1091(b), this device is a
mobile device.
And the following conditions must be met:
1. This Modular Approval is limited to OEM installation for mobile and fixed applications only. The antenna
installation and operating configurations of this transmitter, including any applicable source-based time-
averaging duty factor, antenna gain and cable loss must satisfy MPE categorical Exclusion Requirements
of 2.1091.
2. The EUT is a mobile device; maintain at least a 20 cm separation between the EUT and the user’s body
and must not transmit simultaneously with any other antenna or transmitter.
3.A label with the following statements must be attached to the host end product: This device contains
FCC ID: XMR201907BC66NA.
4.To comply with FCC regulations limiting both maximum RF output power and human exposure to RF
radiation, maximum antenna gain (including cable loss) must not exceed:
❒ LTE Band2/25:≤8.000dBi
❒ LTE Band4/66:≤5.000dBi
❒ LTE Band5:≤9.416dBi
❒ LTE Band12/17:≤8.734dBi
❒ LTE Band13:≤9.173dBi
❒ LTE Band71:≤8.447dBi
❒ LTE Band85:≤8.734dBi
5. This module must not transmit simultaneously with any other antenna or transmitter
6. The host end product must include a user manual that clearly defines operating requirements and
conditions that must be observed to ensure compliance with current FCC RF exposure guidelines.
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For portable devices, in addition to the conditions 3 through 6 described above, a separate approval is
required to satisfy the SAR requirements of FCC Part 2.1093
If the device is used for other equipment that separate approval is required for all other operating
configurations, including portable configurations with respect to 2.1093 and different antenna
configurations.
For this device, OEM integrators must be provided with labeling instructions of finished products.
Please refer to KDB784748 D01 v07, section 8. Page 6/7 last two paragraphs:
A certified modular has the option to use a permanently affixed label, or an electronic label. For a
permanently affixed label, the module must be labeled with an FCC ID - Section 2.926 (see 2.2
Certification (labeling requirements) above). The OEM manual must provide clear instructions
explaining to the OEM the labeling requirements, options and OEM user manual instructions that are
required (see next paragraph).
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: XMR201907BC66NA” or “Contains FCC ID: XMR201907BC66NA” 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.
The final host / module combination may also need to be evaluated against the FCC Part 15B criteria
for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device.
The user’s manual or instruction manual for an intentional or unintentional radiator shall caution the
user that changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment. In cases where the manual is provided only in
a form other than paper, such as on a computer disk or over the Internet, the information required by
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this section may be included in the manual in that alternative form, provided the user can reasonably be
expected to have the capability to access information in that form.
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.
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to
operate the equipment.
To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring
compliance with the module(s) installed and fully operational. For example, if a host was previously
authorized as an unintentional radiator under the Declaration of Conformity procedure without a
transmitter certified module and a module is added, the host manufacturer is responsible for ensuring that
the after the module is installed and operational the host continues to be compliant with the Part 15B
unintentional radiator requirements.
1.3. IC Statement
IRSS-GEN
"This device complies with Industry Canada’s licence-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." or "Le présent
appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence.
L’exploitation est autorisée aux deux conditions suivantes :
1) l’appareil ne doit pas produire de brouillage; 2) l’utilisateur de l’appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement."
Déclaration sur l'exposition aux rayonnements RF
The EUT is a mobile device; maintain at least a 20 cm separation between the EUT and the user’s body
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and must not transmit simultaneously with any other antenna or transmitter.
L'autre utilisé pour l'émetteur doit être installé pour fournir une distance de séparation d'au moins 20 cm
de toutes les personnes et ne doit pas être colocalisé ou fonctionner conjointement avec une autre
antenne ou un autre émetteur.
To comply with IC regulations limiting both maximum RF output power and human exposure to RF
radiation, maximum antenna gain (including cable loss) must not exceed:
❒ LTE Band2/25:≤8.000dBi
❒ LTE Band4/66:≤5.000dBi
❒ LTE Band5:≤6.100dBi
❒ LTE Band12/85:≤5.610dBi
❒ LTE Band13:≤5.930dBi
❒ LTE Band17:≤5.630dBi
❒ LTE Band26:≤9.008dBi
❒ LTE Band71:≤5.450dBi
The host product shall be properly labelled to identify the modules within the host product.
The Innovation, Science and Economic Development Canada certification label of a module shall be
clearly visible at all times when installed in the host product; otherwise, the host product must be labeled
to display the Innovation, Science and Economic Development Canada certification number for the
module, preceded by the word “Contains” or similar wording expressing the same meaning, as follows:
“Contains IC: 10224A-20197BC66NA” or “where: 10224A-20197BC66NA is the module’s certification
number”.
Le produit hôte doit être correctement étiqueté pour identifier les modules dans le produit hôte.
L'étiquette de certification d'Innovation, Sciences et Développement économique Canada d'un module
doit être clairement visible en tout temps lorsqu'il est installédans le produit hôte; sinon, le produit hôte
doit porter une étiquette indiquant le numéro de certification d'Innovation, Sciences et Développement
économique Canada pour le module, précédé du mot «Contient» ou d'un libellé semblable exprimant la
même signification, comme suit:
"Contient IC: 10224A-20197BC66NA " ou "où: 10224A-20197BC66NA est le numéro de certification du
module".
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2 Product Concept
2.1. General Description
BC66-NA is a high-performance NB-IoT module with extremely low power consumption. It is designed to
communicate with infrastructures of mobile network operators through NB-IoT radio protocols (3GPP
Rel.13 and 3GPP Rel.14). BC66-NA supports a broad range of frequency bands as listed below.
Table 1: Frequency Bands of BC66-NA Module
Mode BC66-NA
H-FDD B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26*/B28/B66/B71/B85
BC66-NA is an SMD type module with LCC package, and has an ultra-compact profile of 17.7mm ×
15.8mm × 2.0mm. These make it can be easily embedded into size-constrained applications and provide
reliable connectivity with the applications.
BC66-NA provides abundant external interfaces (USB, UART, ADC*, NETLIGHT, etc.) and protocol
stacks (UDP/TCP, LwM2M, MQTT, etc.), which provide great convenience for customers' applications.
Due to compact form factor, ultra-low power consumption and extended temperature range, BC66-NA is
a best choice for a wide range of IoT applications, such as smart metering, bike sharing, smart wearables,
smart parking, smart city, home appliances, security and asset tracking, agricultural and environmental
monitoring, etc. It is able to provide a complete range of SMS* and data transmission services to meet
customers’ demands.
The module fully complies with the RoHS directive of the European Union.
NOTE
“*” means under development. B26 was disabled in software configuration for FCC version.
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2.2. Key Features
The following table describes the detailed features of BC66-NA module.
Table 2: BC66-NA Key Features
Feature Details
Power Supply
Supply voltage: 2.1V ~ 3.63V
Typical supply voltage: 3.3V
Power Saving Typical power consumption: 3.5μA
Frequency Bands
LTE Cat NB1:
B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26*/B28/B66/B71/B85
Transmitting Power 23dBm±2dB
USIM Interface Support 1.8V USIM card
Conform to USB 1.1 specifications, with maximum data transfer rate up to
USB Interface
12Mbps
Used for software debugging and upgrading
Support USB serial driver under Windows/Linux operating systems
Main UART Port:
Used for AT command communication and data transmission.
By default, the module is in auto-baud mode, and it supports automatic
baud rates not exceeding 115200bps. When powering on the module, the
MCU has to send AT command consecutively to synchronize baud rate
with the module. When OK is returned, it indicates the baud rate has been
synchronized successfully. When the module is woken up from PSM or
UART Interfaces
idle mode, the baud rate synchronized during start-up will be used directly.
Also can be used for firmware upgrade, and in such case, the baud rate is
921600bps by default.
Debug UART Port:
Used for firmware debugging
Default baud rate: 115200bps
Auxiliary UART Port:
Used for firmware debugging
Default baud rate: 115200bps
Network Protocols UDP/TCP/LwM2M/MQTT/DTLS/SNTP/CoAP*/PPP*/TLS*/HTTP*/HTTPS*
SMS* Text/PDU Mode
Data Transmission
Features
Single-tone: Max. 103kbps (DL)/18kbps (UL)
Multi-tone: Max. 103kbps (DL )/151kbps (UL)
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AT Commands
3GPP TS 27.005/3GPP TS 27.007 AT commands (3GPP Rel. 13/Rel.14*)
and Quectel Enhanced AT commands
Firmware Update Upgrade firmware via main UART port or DFOTA
Real Time Clock Supported
Physical
Characteristics
Temperature Range
Size: (17.7±0.15)mm × (15.8±0.15)mm × (2.0±0.2)mm
Weight: 1.2g±0.2g
1)
Operation temperature range: -35°C ~ +75°C
Extended temperature range: -40°C ~ +85°C
2)
Storage temperature range: -40°C ~ +90°C
Antenna Interface 50Ω impedance control
RoHS All hardware components are fully compliant with EU RoHS directive
NOTES
1)
1.
Within operation temperature range, the module is 3GPP compliant.
2)
2.
Within extended temperature range, the module remains the ability to establish and maintain an
SMS*, data transmission, etc. There is no unrecoverable malfunction. There are also no effects on
radio spectrum and no harm to radio network. Only one or more parameters like P
might reduce in
out
their value and exceed the specified tolerances. When the temperature returns to normal operation
temperature levels, the module will meet 3GPP specifications again.
3. "*" means under development.
2.3. Functional Diagram
The following figure shows a block diagram of BC66-NA and illustrates the major functional parts.
Radio frequency
Baseband
Power management
Peripheral interfaces
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Figure 1: Functional Diagram
NOTE
“*” means under development.
2.4. Development Board
Quectel provides a complete set of development tools to facilitate the use and testing of BC66-NA module.
The development tool kit includes the TE-B board, USB cable, antenna and other peripherals. For more
details, please refer to document [1].
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3 Application Interfaces
3.1. General Description
BC66-NA is equipped with a total of 58 pins, including 44 LCC pins and 14 LGA pins. The subsequent
chapters will provide detailed descriptions of the following functions/pins/interfaces:
PSM
Power Supply
PWRKEY
RESET
USB Interface
UART Interfaces
USIM Interface
ADC Interface*
RI Behaviors
Network Status Indication
NOTE
“*” means under development. B26 was disabled in software configuration for FCC version.
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3.2. Pin Assignment
VBAT_BB
RESERVED
VBAT_RF
42
43
44
GND14GND
40
41
TXD_DBG
39
GND
37
GND
36
RXD_DBG
38
15
RESET
SIM_VDD
Figure 2: Pin Assignment
NOTES
1. Keep all reserved pins unconnected.
2. “*” means under development.
USB_DP
VUSB_3V3
16
17
18
TXD
RXD
NETLIGHT
USB_DM
19
20
RI
PSM_EINT
21
22
RESERVED
RESERVED
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3.3. Pin Description
Table 3: I/O Parameters Definition
Type Description
AI Analog input
AO Analog output
DI Digital input
DO Digital output
IO Bidirectional
PI Power input
PO Power output
Table 4: Pin Description
Power Supply
Pin Name Pin No. I/O Description DC Characteristics Comment
Power supply for
VBAT_BB 42 PI
the module’s
baseband part
Power supply for
VBAT_RF 43 PI
the module’s RF
part
Vmax=3.63V
Vmin=2.1V
Vnorm=3.3V
Vmax=3.63V
Vmin=2.1V
Vnorm=3.3V
No voltage output in
PSM mode.
It is intended to supply
VDD_
EXT
24 PO
1.8V output
power supply
Vnorm=1.8V
power for the module’s
pull-up circuits, and is
thus not recommended
to be used as the
power supply for
external circuits.
1, 27, 34,
GND
36, 37, 40,
GND
41
BC66-NA_Hardware_Design 19 / 59
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