Product Technical Specification
and Customer Design Guideline
Product Technical Specification and
Customer Design Guideline
Important Notice
Due to the nature of wireless communications, transmission and reception of data can never be
guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant
delays or losses of data are rare when wireless devices such as the Sierra Wireless modem are used
in a normal manner with a well-constructed network, the Sierra Wireless modem should not be used
in situations where failure to transmit or receive data could result in damage of any kind to the user or
any other party, including but not limited to personal injury, death, or loss of property. Sierra Wireless
accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or
received using the Sierra Wireless modem, or for failure of the Sierra Wireless modem to transmit or
receive such data.
Safety and Hazards
Do not operate the Sierra Wireless modem in areas where blasting is in progress, where explosive
atmospheres may be present, near medical equipment, near life support equipment, or any equipment
which may be susceptible to any form of radio interference. In such areas, the Sierra Wireless modem
MUST BE POWERED OFF. The Sierra Wireless modem can transmit signals that could interfere with
this equipment. Do not operate the Sierra Wireless modem in any aircraft, whether the aircraft is on
the ground or in flight. In aircraft, the Sierra Wireless modem MUST BE POWERED OFF. When
operating, the Sierra Wireless modem can transmit signals that could interfere with various onboard
systems.
Note: Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door is
open. Sierra Wireless modems may be used at this time.
The driver or operator of any vehicle should not operate the Sierra Wireless modem while in control of
a vehicle. Doing so will detract from the driver or operator’s control and operation of that vehicle. In
some states and provinces, operating such communications devices while in control of a vehicle is an
offence.
Limitations of Liability
This manual is provided “as is”. Sierra Wireless makes no warranties of any kind, either expressed or
implied, including any implied warranties of merchantability, fitness for a particular purpose, or
noninfringement. The recipient of the manual shall endorse all risks arising from its use.
The information in this manual is subject to change without notice and does not represent a
commitment on the part of Sierra Wireless. SIERRA WIRELESS AND ITS AFFILIATES
SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT, INDIRECT, SPECIAL,
GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES INCLUDING,
BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR
REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY SIERRA WIRELESS
PRODUCT, EVEN IF SIERRA WIRELESS AND/OR ITS AFFILIATES HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY
THIRD PARTY.
Notwithstanding the foregoing, in no event shall Sierra Wireless and/or its affiliates aggregate liability
arising under or in connection with the Sierra Wireless product, regardless of the number of events,
occurrences, or claims giving rise to liability, be in excess of the price paid by the purchaser for the
Sierra Wireless product.
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 2
Product Technical Specification and
Customer Design Guideline
Patents
5,515,013
5,629,960
5,845,216
5,847,553
5,878,234
5,890,057
5,929,815
6,169,884
6,191,741
6,199,168
6,339,405
6,359,591
6,400,336
6,516,204
6,561,851
6,643,501
6,653,979
6,697,030
6,785,830
6,845,249
6,847,830
6,876,697
6,879,585
6,886,049
6,968,171
6,985,757
7,023,878
7,053,843
7,106,569
7,145,267
7,200,512
7,295,171
7,287,162
D442,170
D459,303
D599,256
D560,911
Sales Desk:
Phone:
1-604-232-1488
Hours:
8:00 AM to 5:00 PM Pacific Time
E-mail:
sales@sierrawireless.com
Post:
Sierra Wireless
13811 Wireless Way
Richmond, BC
Canada V6V 3A4
Fax:
1-604-231-1109
Web:
www.sierrawireless.com
Portions of this product may be covered by some or all of the following US patents:
and other patents pending.
This product includes technology licensed from QUALCOMM
®
3G
Manufactured or sold by Sierra Wireless or its licensees under one or more patents licensed from
InterDigital Group.
AirCard® and Watcher® are registered trademarks of Sierra Wireless. SierraWireless™, AirPrime™,
AirLink™, AirVantage™ and the Sierra Wireless logo are trademarks of Sierra Wireless.
, , ®, inSIM®, WAVECOM®, WISMO®, Wireless Microprocessor®,
Wireless CPU®, Open AT® are filed or registered trademarks of Sierra Wireless S.A. in France and/or
in other countries.
Windows
®
and Windows Vista® are registered trademarks of MicrosoftCorporation.
Macintosh and Mac OS are registered trademarks of Apple Inc., registered in the U.S. and other
countries.
QUALCOMM
®
is a registered trademark of QUALCOMM Incorporated. Used under license.
Other trademarks are the property of the respective owners.
Contact Information
Consult our website for up-to-date product descriptions, documentation, application notes, firmware
upgrades, troubleshooting tips, and press releases: www.sierrawireless.com
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 3
Product Technical Specification and
Customer Design Guideline
Document History
Version
Date
Updates
001
January 28, 2010
Creation
002
April 20, 2010
Reformatted in the rebranded SWI template.
In Section 3 Technical Specifications:
Moved the Power Supply Design Requirements to section 9.1
Power Supply
Updated Figure 5
In section 4 Interfaces:
Updated section 4.7.4 5-wire Serial Interface
Updated section 4.8.1 Pin Description
Updated section 4.8.3 4-wire Serial Interface
Updated section 8.4 Reliability Prediction Model.
Updated links in section 13.1.1 Web Site Support.
Updated Intelligent Embedded Module weight to 8g.
Updated the RF Component list.
Removed references to IMP Connector throughout the document.
Updated Figure 10 Example of a 4-wire SPI Bus Application.
Updated section 4.15 Temperature Sensor Interface.
Updated Power ON information based on Tracker 01626.
Updated U1 Chip information based on CUS57225.
Updated antenna gain information.
Updated FCC ID.
Updated power consumption values in section 6 Power Consumption.
Updated Figure 5 Q2687 Refreshed Embedded Module Mechanical Drawing
and Figure 6 Maximum Bulk Occupied on the Host Board.
The Q2687 Refreshed Intelligent Embedded Module is a self-contained E-GSM/DCS/GSM850/PCS
GPRS/EGPRS 900/1800/850/1900 quad-band embedded module. It supports the Sierra Wireless
Software Suite, the world’s most comprehensive cellular development environment which allows
embedded standard ANSI C applications to be natively executed directly on the embedded module.
For more information about Sierra Wireless Software Suite, refer to the documents listed in section
13.2 Reference Documents.
Note that this document only covers the Q2687 Refreshed Intelligent Embedded Module and does not
cover the programmable capabilities available through the Sierra Wireless Software Suite.
1.1. Physical Dimensions
Length: 40 mm
Width: 32.2 mm
Thickness: 4 mm
Weight: 8g
Note: The physical dimensions mentioned above do not include the shielding pins.
1.2. General Features
The following table lists the Q2687 Refreshed embedded module features.
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 16
Product Technical Specification and
Customer Design Guideline
Introduction
Table 1: Q2687 Refreshed Embedded Module Features
Featur e
Descri ption
Shieldin g
The Q2687 Refreshed embedded module has complete body shielding.
Intelligent
Embedded Modul e
Control
Full set of AT commands for GSM/GPRS/EGPRS including GSM 07.07 and
07.05 AT command sets
Status indication for GSM
GSM/DCS Output
Power
Class 4 (2 W) for GSM 850 and E-GSM
Class 1 (1 W) for DCS and PCS
GPRS
GPRS multislot class 10
Multislot class 2 supported
PBCCH support
Coding schemes: CS1 to CS4
EGPRS
EGPRS multislot class 10
Multislot class 2 supported
PBCCH support
Coding schemes MCS5 to MCS9
Voice
GSM Voice Features with Emergency calls 118 XXX
Full Rate (FR)/ Enhanced Full Rate (EFR) / Half Rate (HR) / Adaptive Multi
Rate (AMR)
Echo cancellation and noise reduction
Full duplex Hands free
SMS
SMS MT, MO
SMS CB
SMS storage into SIM card
GSM
Supplementar y
Services
Call Forwarding, Call Barring
Multiparty
Call Waiting, Call Hold
USSD
Data/Fax
Data circuit asynchronous, transparent, and non-transparent up to 14400
bits/s
Fax Group 3 compatible
SIM Interface
1.8V/3V SIM interface
5V SIM interfaces are available with external adaptation
SIM Tool Kit Release 99
Real Tim e Cl ock
Real Time Clock (RTC) with calendar and alarm
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 17
Product Technical Specification and
Customer Design Guideline
Introduction
1.3. GSM/GPRS/EGPRS Features
2-Watt EGSM – GPRS 900/850 radio section running under 3.6 volts
1-Watt GSM-GPRS1800/1900 radio section running under 3.6 volts
0.5-Watt EGPRS 900/850 radio section running under 3.6 volts
0.4-Watt EGPRS 1800/1900 radio section running under 3.6 volts
Hardware GSM/GPRS class 10 and EGPRS class 10 capable
1.4. Interfaces
Digital section running under 2.8V and 1.8V
3V/1V8 SIM interface
Complete Interfacing:
Power supply
Serial link
Analog audio
PCM digital audio
SIM card
Keyboard
USB 2.0 slave
Serial LCD (not available with AT commands)
Parallel port for specific applications (under Open AT® control only)
Full GSM or GSM/GPRS/EGPRS Operating System stack
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 18
Product Technical Specification and
Customer Design Guideline
Introduction
1.6. Connection Interfaces
The Q2687 Refreshed embedded module is compliant with RoHS Directive
2002/95/EC which sets limits for the use of certain restricted hazardous substances.
This directive states that “from 1st July 2006, new electrical and electronic equipment
put on the market does not contain lead, mercury, cadmium, hexavalent chromium,
polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE)”.
This electronic product is subject to the EU Directive 2002/96/EC for Waste Electrical
and Electronic Equipment (WEEE). As such, this product must not be disposed off at
a municipal waste collection point. Please refer to local regulations for directions on
how to dispose of this product in an environmental friendly manner.
The Q2687 Refreshed Intelligent Embedded Module has four external connections:
100-pin I/O connector (compatible with Q2686 and Q2687 embedded modules)
1.7. Environment and Mechanics
1.7.1. RoHS Directive Compliant
1.7.2. Disposing of the Product
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 19
2. Functional Specifications
RF Bandwidth
Transmit Band ( Tx)
Receive Band (Rx)
GSM 850
824 to 849 MHz
869 to 894 MHz
E-GSM 900
880 to 915 MHz
925 to 960 MHz
DCS 1800
1710 to 1785 MHz
1805 to 1880 MHz
2.1. Functional Architecture
The global architecture of the Q2687 Refreshed Embedded Module is described in the figure below.
Figure 1. Functional Architecture
2.1.1. RF Functionalities
The Radio Frequency (RF) functionalities of the Q2687 Refreshed embedded module complies with
the Phase II EGSM 900/DCS 1800 and GSM 850/PCS 1900 recommendations. The frequency range
for the transmit band and receive band are given in the table below.
Table 2: List of RF Frequency Ranges
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 20
Product Technical Specification and
Customer Design Guideline
Functional Specifications
RF Bandwidth
Transmit Band ( Tx)
Receive Band (Rx)
PCS 1900
1850 to 1910 MHz
1930 to 1990 MHz
The Radio Frequency (RF) component is based on a specific quad-band chip that includes the
following:
Quad-band LNAs (Low Noise Amplifier)
Digital Low-IF Receiver
Offset PLL/PL (Phase Locked Loop and Polar Loop) transmitter
Frequency synthesizer
Digitally controlled crystal oscillator (DCXO)
Tx/Rx FEM (Front-End module) for quad-band GSM/GPRS/EGPRS
2.1.2. Baseband Functionalities
The digital part of the Q2687 Refreshed embedded module is composed of a PCF5213 PHILIPS
chip. This chipset uses a 0.18µm mixed technology CMOS, which allows massive integration as well
as low current consumption.
2.2. Operating System
The Q2687 Refreshed Embedded Module is Sierra Wireless Software Suite compliant. With the Sierra
Wireless Software Suite, customers can embed their own applications with the Q2687 Refreshed
embedded module and turn the Q2687 Refreshed embedded module into a solution for their specific
market need.
The operating system allows for the Q2687 Refreshed Embedded Module to be controlled by AT
commands. However, some interfaces in the Q2687 Refreshed embedded module may still not be
available even with AT command control as these interfaces are dependent on the peripheral devices
connected to the Q2687 Refreshed embedded module.
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 21
3. Technical Specifications
3.1. Power Supply
The power supply is one of the key issues in the design of a GSM terminal. Due to the burst emission
in GSM/GPRS, the power supply must be able to deliver high current peaks in a short time. During
these peaks, the ripple (U
Input Power Supply Voltage).
Listed below are the corresponding radio burst rates in connected mode:
GSM/GPRS class 2 terminals emit 577µs radio bursts every 4.615ms (see Figure 2 Power
Supply During Burst Emission)
GPRS class 10 terminals emit 1154µs radio bursts every 4.615ms
In connected mode, the RF Power Amplifier current (2.0A peak in GSM /GPRS mode) flows with a
ratio of:
1/8 of the time (around 577µs every 4.615ms for GSM /GPRS cl 2 – 2RX/1TX)
) on the supply voltage must not exceed a certain limit (refer to Table 3:
ripp
and
2/8 of the time (around 1154µs every 4.615ms for GSM /GPRS cl 10 – 3RX/2TX)
with the rising time at around 10µs.
Figure 2. Power Supply During Burst Emission
Only VBATT (external power supply source) input is necessary to supply the Q2687 Refreshed
embedded module. VBATT also provides for the following functions:
Directly supplies the RF components with 3.6V. (Note that it is essential to keep a minimum
voltage ripple at this connection in order to avoid any phase error or spectrum modulation
degradation. On the other hand, insufficient power supply could dramatically affect some RF
performances such as TX power, modulation spectrum, EMC performance, spurious emission
and frequency error.)
Internally used to provide through several regulators, the power supplies VCC_2V8 and
VCC_1V8, which are needed for the baseband signals.
The Q2687 Refreshed embedded module shielding case is the grounding. The ground must be
connected on the motherboard through a complete layer on the PCB.
The following table describes the electrical characteristics of the input power supply voltage that will
guarantee nominal functioning of the Q2687 Refreshed embedded module.
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 22
Product Technical Specification and
Customer Design Guideline
Technical Specifications
Table 3: Input Power Supply Voltage
V
MI N
V
NO M
V
MA X
Ripple M ax (U
ri pp
)
I
pe ak
M ax
VBATT
3.2V
1,2
3.6V
4.8V
250mVpp (freq < 10kHz)
40mVpp (10kHz < freq <
100kHz)
5mVpp (freq > 100kHz)
(TBC)
2.0A
Signal
Pin Number
VBATT
1, 2, 3, 4
GND
Shielding
1: This value must be guaranteed during the burst (with 2.0A Peak in GSM, GPRS or EGPRS mode)
2: Maximum operating Voltage Standing Wave Ratio (VSW R) 2:1.
Figure 3. Power Supply Ripple Graph (TBC)
When the Q2687 Refreshed embedded module is supplied with a battery, the total impedance
(battery + protections + PCB) should be less than 150 m.
Caution: When the Q2687 Refreshed embedded module is in Alarm mode or Off mode, no voltage has to be
applied on any pin of the 100-pin connector except on VBATT (pins 1 to 4), BAT-RTC (pin 7) for RTC
operation or ON/~OFF (pin 19) to power-ON the Q2687 Refreshed embedded module.
3.1.1. Power Supply Pin-Out
Table 4: Power Supply Pin-Out
The grounding connection is made through the shielding; therefore the four leads must be soldered to
the ground plane.
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 23
Product Technical Specification and
Customer Design Guideline
Technical Specifications
3.1.2. Start-Up Current
Current Pe ak at
Am bien t Temper ature
(25°C)
VBATTmin (3. 2V)
VBATTtyp (3. 6V)
VBATTmax ( 4. 8V)
I
Startup
86 mA
77 mA
64 mA
During the initial second following Power ON, a peak of current appears. This peak of current is called
“I
current” and has a duration of about 161ms (typical) (TBC).
Startup
Figure 4: Start-up Current Waveform shows the current waveform and identifies the peak considered
as the start-up current.
<TBC>
Figure 4. Start-up Current Waveform
In this condition, we can consider the following results:
Table 5: Current Start-Up (TBC)
3.1.3. Decoupling of Power Supply Signals
Decoupling capacitors on VBATT lines are embedded in the Q2687 Refreshed embedded module, so
it should not be necessary to add decoupling capacitors close to the embedded module.
However, in case of EMI/RFI problems, the VBATT signal may require some EMI/RFI decoupling –
parallel 33pF capacitors close to the embedded module or a serial ferrite bead (or both to get better
results). Low frequency decoupling capacitors (22µF to 100µF) can be used to reduce TDMA noise
(217Hz).
Caution: When ferrite beads are used, the recommendation given for the power supply connection must be
carefully followed (high current capacity and low impedance).
3.2. Mechanical Specifications
The Q2687 Refreshed Embedded Module has a complete self-contained shield and the mechanical
specifications are shown in the figure below, which also specifies the following:
The area needed for the Q2687 Refreshed embedded module to fit in an application
The drill template for the four pads to be soldered on the application board
The dimensions and tolerance for correctly placing the 100-pin female connector on the
application board
It is strongly recommended to plan a free area (no components) around the Q2687 Refreshed
embedded module in order to facilitate the removal/re-assembly of the embedded module on the
application board.
Also take note that when transmitting, the Q2687 Refreshed Embedded Module produces heat (due
to the internal Power Amplifier). This heat will generate a temperature increase and may warm the
application board on which the Q2687 Refreshed embedded module is soldered. This is especially
true for GPRS Class 10 use in low band. The Q2687 Refreshed Embedded Module’s built-in
temperature sensor can be used to monitor the temperature inside the module. For more information,
refer to document [14] AirPrime Q2687 Product Technical Specification.
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 24
Product Technical Specification and
Customer Design Guideline
Product Technical Specification and
Customer Design Guideline
Technical Specifications
Figure 6. Maximum Bulk Occupied on the Host Board
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 26
Product Technical Specification and
Customer Design Guideline
Technical Specifications
3.3. Firmware Upgrade
The firmware upgrade process consists of downloading GSM/GPRS/EGPRS software into the
corresponding internal flash memories of the Q2687 Refreshed Intelligent Embedded Module.
Downloading is done through the GSM Main Serial link port (UART1) connected to a PC using the
XMODEM protocol.
A specific AT command, AT+WDWL, is used to start the download. For more information, refer to
document [8] Firmware 7.43 AT Commands Manual (Sierra Wireless Software Suite 2.33).
Access to the following UART1 main serial link signals are required to carry out downloading:
CT103-TXD1
CT104-RXD1
~CT106-CTS1
~CT105-RTS1
GND
Consequently, it is very important to plan and define easy access to these signals during the
hardware design of the application board. For more information about these signals, refer to section
4.7 Main Serial Link (UART1).
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 27
4. Interfaces
Name
Driven by AT commands
Driven by Open AT®
Serial Interface
Parallel Interface
Keyboard Interface
Main Serial Link
Auxiliary Serial Link
SIM Interface
General Purpose IO
Analog to Digital Converter
Analog Audio Interface
PWM / Buzzer Output
Battery Charging Interface
External Interruption
BAT-RTC (Backup Battery)
LED0 signal
Digital Audio Interface (PCM)
USB 2.0 Interface
Caution: Some of the Embedded Module interface signals are multiplexed in order to limit the number of pins
but this architecture includes some restrictions.
4.1. General Purpose Connector (GPC)
A 100-pin connector is provided to interface the Q2687 Refreshed Intelligent Embedded Module with
a board containing either a serial or parallel LCD module; a keyboard, a SIM connector or a battery
connection.
The following table lists the interfaces and signals available on the GPC and specifies whether these
interfaces and signals are driven by AT Command, Open AT® or both.
Table 6: Available Interfaces and Signals
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 28
Product Technical Specification and
Customer Design Guideline
Interfaces
4.1.1. Pin Description
Pin
#
Signal Nam e
I/O
Type
Volt age
I/O*
Reset Stat e
Descri ption
Dealing wi th Unused Pins
Nominal
Mux
1
ADC0/VBATT
VBATT
I Power Supply
2 ADC0/VBATT
VBATT
I Power Supply
3 ADC0/VBATT
VBATT
I Power Supply
4 ADC0/VBATT
VBATT
I Power Supply
5 VCC_1V8
VCC_1V8
O 1.8V Supply Output
NC 6 CHG-IN
CHG-IN
I Charger input
NC
7
BAT-RTC
BAT-RTC
I/O RTC Battery connection
NC
8
CHG-IN
CHG-IN
I Charger input
NC
9
SIM-VCC
1V8 or 3V
O SIM Power Supply
10
VCC_2V8
VCC_2V8
O 2.8V Supply Output
NC
11
SIM-IO
1V8 or 3V
I/O
Pull-up (about
10kΩ)
SIM Data
12
SIMPRES
GPIO18
VCC_1V8
I Z SIM Detection
NC
13
~SIM-RST
1V8 or 3V
O 0 SIM reset Output
14
SIM-CLK
1V8 or 3V
O 0 SIM Clock
15
BUZZER0
Open Drain
O Z Buzzer Output
NC
16
BOOT
VCC_1V8
I Not Used
Add a test point / a jumper/ a switch to
VCC_1V8 (Pin 5) in case Download
Specific mode is used (See product
specification for details)
Refer to the following table for the pin description of the general purpose connector.
Table 7: General Purpose Connector Pin Description
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 29
Product Technical Specification and
Customer Design Guideline
Interfaces
Pin
#
Signal Nam e
I/O
Type
Volt age
I/O*
Reset Stat e
Descri ption
Dealing wi th Unused Pins
Nominal
Mux
17
LED0
Open Drain
O
1 and
Undefined
LED0 Output
NC
18
~RESET
VCC_1V8
I/O RESET Input
NC or add a test point
19
ON/~OFF
VBATT
I ON / ~OFF Control
20
ADC1/BATTEMP
Analog
I Analog temperature
Pull to GND
21
ADC2
Analog
I Analog to Digital Input
Pull to GND
22
GPIO31/ SPI1
Load
VCC_2V8
I/O Z
NC
23
SPI1-CLK
GPIO28
VCC_2V8
O Z SPI1 Clock
NC
24
SPI1-I
GPIO30
VCC_2V8
I Z SPI1 Data Input
NC
25
SPI1-IO
GPIO29
VCC_2V8
I/O Z SPI1 Data Input / Output
NC
26
SPI2-CLK
GPIO32
VCC_2V8
O Z SPI2 Clock
NC
27
SPI2-IO
GPIO33
VCC_2V8
I/O Z SPI2 Data Input / Output
NC
28
GPIO35/SPI2Load
VCC_2V8
I/0 Z
NC
29
SPI2-I
GPIO34
VCC_2V8
I Z SPI2 Data Input
NC
30
CT104-RXD2
GPIO15
VCC_1V8
O Z Auxiliary RS232 Receive
Add a test point for debugging
31
CT103-TXD2
GPIO14
VCC_1V8
I Z Auxiliary RS232 Transmit
(TXD2) Pull-up to VCC_1V8 with 100kΩ
and add a test point for debugging
32
~CT106-CTS2
GPIO16
VCC_1V8
O Z Auxiliary RS232 Clear To Send
(CTS2) Add a test point for debugging
33
~CT105-RTS2
GPIO17
VCC_1V8
I Z Auxiliary RS232 Request To Send
(RTS2) Pull-up to VCC_1V8 with 100kΩ
and add a test point for debugging
34
MIC2N
Analog
I Micro 2 Input Negative
NC
35
SPK1P
Analog
O Speaker 1 Output Positive
NC
36
MIC2P
Analog
I Micro 2 Input Positive
NC
37
SPK1N
Analog
O Speaker 1 Output Negative
NC
38
MIC1N
Analog
I Micro 1 Input Negative
NC
WA_DEV_Q26RD_PTS_001 Rev 002 April 20, 2010 30
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