Ublox EVK-F9P-01 User manual
EVK-F9P-01 - User guide
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Document information
Title EVK-F9P-01
Subtitle Evaluation kit
Document type User guide
Document number UBX-22038408
Revision and date R03 15-May-2023
Disclosure restriction C1- Public
Product status Corresponding content status
In development /
Prototype
Objective specification Target values. Revised and supplementary data will be published later.
Engineering sample Advance information Data based on early testing. Revised and supplementary data will be published later.
Initial production Early production information Data from product verification. Revised and supplementary data may be published later.
Mass production /
End of life
Production information Document contains the final product specification.
This document applies to the following products:
Product name Ordering code Firmware version Application version PCN reference Product status
EVK-F9P-01 EVK-F9P-01-00 HPG 1.32 N/A Initial production
u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this
document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only
permitted with the express written permission of u
-blox.
The information contained herein is provided “as is” and u
-blox assumes no liability for its use. No warranty, either express or
implied, is given, including but not limited
to, with respect to the accuracy, correctness, reliability and fitness for a particular
purpose of the information. This document may be revised by u
-blox at any time without notice. For the most recent
documents, visit www.u
-blox.com.
Copyright © u
-blox AG.
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Contents
Document information................................................................................................................................2
Contents ..........................................................................................................................................................3
1Product description ..............................................................................................................................5
1.1 Overview........................................................................................................................................................ 5
1.2 Kit contents.................................................................................................................................................. 5
1.3 Software and documentation................................................................................................................... 5
1.4 System requirements ................................................................................................................................ 5
2Specifications .........................................................................................................................................6
2.1 Safety precautions ..................................................................................................................................... 6
2.1.1 Certifications ....................................................................................................................................... 6
3Getting started.......................................................................................................................................7
3.1 Installing u-center software...................................................................................................................... 7
3.2 Installing hardware ..................................................................................................................................... 7
3.3 Default interface settings .........................................................................................................................8
4Device description.................................................................................................................................9
4.1 Interface connection and measurement................................................................................................9
4.2 Active antenna............................................................................................................................................. 9
4.3 Evaluation unit............................................................................................................................................. 9
4.3.1 Antenna connector (RF IN) ............................................................................................................... 9
4.3.2 USB connector..................................................................................................................................... 9
4.3.3 DB9 connector (RS232)...................................................................................................................10
4.3.4 RST button.........................................................................................................................................10
4.3.5 Safe boot button...............................................................................................................................10
4.3.6 Slide switch ........................................................................................................................................10
4.3.7 Pin header...........................................................................................................................................11
4.3.8 LED.......................................................................................................................................................12
5Measuring current.............................................................................................................................. 13
6RTK setup.............................................................................................................................................. 14
6.1 Setting up NTRIP client in u-center.......................................................................................................14
6.2 Setting up MQTT client in u-center.......................................................................................................15
6.3 Monitoring RTK status ............................................................................................................................16
7Block diagram ...................................................................................................................................... 18
8Board layout.......................................................................................................................................... 19
9Component list .................................................................................................................................... 20
10 Schematic ............................................................................................................................................. 22
11 Troubleshooting.................................................................................................................................. 24
12 Common evaluation pitfalls ............................................................................................................ 26
Appendix ....................................................................................................................................................... 27
AGlossary ................................................................................................................................................. 27
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Related documentation ........................................................................................................................... 28
Revision history.......................................................................................................................................... 28
Contact.......................................................................................................................................................... 28
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1Product description
1.1 Overview
The EVK-F9P evaluation kit simplifies the evaluation of the more efficient u-blox F9 high precision
positioning products. The built-in USB interface provides both power supply and high-speed data
transfer and eliminates the need for an external power supply. The u-blox evaluation kits are compact,
and their user-friendly interface and power supply make them ideally suited for use in laboratories,
vehicles, and outdoor locations. Furthermore, they can be used with a notebook PC, making them the
perfect companion through all stages of design-in process.
Evaluation Kit Description Suitable for
EVK-F9P u-blox F9 high accuracy timing module with
L1/L2 bands
ZED-F9P-01B, ZED-F9P-02B and ZED-F9P-04B
Table 1: List of products supported by EVK-F9P evaluation kit
1.2 Kit contents
The delivered package contains:
•Compact 105 x 64 x 26 mm EVK-F9P evaluation unit
•14-pin front connector breakout cable
•ANN-MB multi-band (L1/L2) active GNSS antenna with 3 m cable
•Antenna ground plane
•EVK Welcome card
•Promotional PointPerfect Service trial, when applicable
1.3 Software and documentation
The product evaluation software includes u-center, an interactive tool for configuration, testing,
visualization, and data analysis of GNSS receivers. It provides useful assistance during all phases of
system integration. Use the latest software version available for F9 products.
The product evaluation software and documentation are available on the u-blox web site.
1.4 System requirements
•PC with USB interface (compatible with USB 2.0)
•Operating system: Microsoft Windows 7 onwards (x86 and x64 versions)
•Internet connection for the first-time use
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2Specifications
Parameter Specification
Serial interfaces 1 USB Type-C
1 RS232, max baud rate 230,400 Baud
DB9 +/- 12 V level
14 pin – 3.3 V logic
1 DDC (I2C compatible) max 400 kHz
1 SPI – clock signal max 5,5 MHz – SPI DATA max 1 Mbit/s
Timing interfaces 1 timepulse output through 14-pin connector
1 timepulse LED
1 timepulse output through RS232
1 external interrupt input
Dimensions 105 x 64 x 26 mm
Power supply 5 V via USB or powered via external power supply pin 14
(V5_IN) and pin 13 (GND)
Normal operating temperature -40 °C to +65 °C
Table 2: EVK-F9P specifications
2.1 Safety precautions
EVK-F9P must be supplied by a PS1 class limited power source. See section 6.2.2.4 of IEC 62368-
1:2018 [5] for more information on the PS1 class.
In addition to a limited power source, only ES1 class circuits are to be connected to the EVK-F9P,
including interfaces and antennas. See section 5.2.1.1 of IEC 62368-1:2018 [5] for more information
on the ES1 class.
2.1.1 Certifications
The EVK-F9P is designed to comply with the essential requirements and other relevant provisions of
Radio Equipment Directive (RED) 2014/53/EU.
The EVK-F9P complies with the Directive 2011/65/EU (EU RoHS 2) and its amendment Directive (EU)
2015/863 (EU RoHS 3).
Declaration of Conformity (DoC) is available on the u-blox website.
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3Getting started
3.1 Installing u-center software
u-center, the u-blox interactive evaluation software tool is required for configuration, testing,
visualization, and data analysis of u-blox GNSS receivers as well as EVKs. The provided user guide
together with the evaluation tool provide useful assistance during all phases of a system integration
project.
1. Download the u-center software from http://www.u-blox.com/product/u-center.
2. Once the zipped installer file is downloaded, unzip it and double-click the exe file.
The u-center software will be installed on your system and placed under the “u-blox” folder in the
“Start > Programs” menu. You can alternatively choose the destination folder for the program
installation.
3. After a successful installation, start the u-center from the Start menu (All Programs > u-blox >
u-center > u-center).
For more information on using u-center, refer to the u-center User guide [4].
The required Microsoft CDC-ACM driver for Windows 10 USB interface is available from the Microsoft
Windows Update service. The Windows system driver search mechanism will download and install the
USB driver automatically from the Microsoft Windows Update service. To evaluate with the Windows
7 and 8 operating systems, the u-blox GNSS standard driver (x64bit) is needed which can be found in
the u-center package.
3.2 Installing hardware
4. Before connecting the interface cable to the EVK, select the interface that you are using for the
connection by sliding the interface switch to the correct position:
•USB-C: Connect via USB-C connector
•UART: Connect via RS-232. Set the slide switch to I2C.
•SPI / I2C compliant DDC: Connect the corresponding pins (see Table 5 for pin description). Set the
slide switch accordingly to SPI or I2C.
⚠CAUTION Changing the interface switch position while the EVK is powered on may damage the
GNSS receiver chip. Power off the EVK before changing the interface switch setting.
1. Power the device on, either via USB on the back or through the V5_IN input on the front of the
EVK.
2. Connect the GNSS antenna to the RF IN SMA jack and place the antenna in a location with good
sky view.
3. Start the u-center GNSS Evaluation Software and select the corresponding COM port and baud
rate.
☞Refer to the u-center User Guide [4] for more information.
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3.3 Default interface settings
Parameter Specification
UART Port 1, input 38400 baud, 8 bits, no parity bit, 1 stop bit.
UBX, NMEA and RTCM 3.3 input protocols are enabled by default.
SPARTN input protocol is enabled by default.
UART Port 1, output 38400 baud, 8 bits, no parity bit, 1 stop bit.
NMEA protocol with GGA, GLL, GSA, GSV, RMC, VTG, TXT messages are output
by default.
UBX and RTCM 3.3 protocols are enabled by default, but no output messages are
enabled by default.
UART2, input 38400 baud, 8 bits, no parity bit, 1 stop bit.
UBX protocol is enabled by default
RTCM 3.3 protocol is enabled by default.
SPARTN protocol is enabled by default.
NMEA protocol is disabled by default.
UART2, output 38400 baud, 8 bits, no parity bit, 1 stop bit.
UBX protocol is disabled by default.
RTCM 3.3 protocol is enabled by default but no output messages are enabled by
default.
NMEA protocol is disabled by default.
USB Default messages activated as in UART1.
Input/output protocols available as in UART1.
I2C Compatible with the I2C industry standard, available for communication with an
external host CPU or u-blox cellular modules, operated in slave mode only. Default
messages activated as in UART1. Input/output protocols available as in UART1.
Maximum bit rate 400 kb/s.
SPI Allow communication to a host CPU, operated in slave mode only. Default
messages activated as in UART1. Input/output protocols available as in UART1.
SPI is not available unless D_SEL pin is set to low.
Table 3: Default configuration
☞Refer to the ZED-F9P Integration manual [3] for more information.
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4Device description
4.1 Interface connection and measurement
To connect the EVK to a PC, use the included Micro-USB cable. Alternatively, a standard SUB DB-9
cable can also be used. Additional measurement equipment can be connected to the front connector.
+
Figure 1: Connecting the unit for power supply and communication
4.2 Active antenna
EVK-F9P evaluation kits include an ANN-MB multi-band (L1/L2) active GNSS antenna with a 3-meter
cable and an SMA connector.
The recommended maximum antenna supply current for active antennas is 15 mA.
4.3 Evaluation unit
Figure 2 shows the front and the rear panel of the EVK-F9P evaluation unit.
Front panel
Rear panel
Figure 2: EVK-F9P evaluation unit – front and rear panels
4.3.1 Antenna connector (RF IN)
An SMA female jack is available on the front side (see Figure 2) of the evaluation unit for connecting
an active GNSS antenna. A DC voltage of 3.3 V is provided to power the active antenna, and the RF
input is 3.3 V. The internal short circuit protection limits the maximum current to 60 mA. Note that
the 15-mA maximum supply current for the active antenna stays the same. This pin is also ESD
protected.
⚠CAUTION Risk of equipment damage. Connecting this equipment to cable distribution systems
may damage the EVK. Use the connector only with a GNSS antenna or simulator.
4.3.2 USB connector
A USB port is featured for data communication and power supply. It is connected to a USB hub and
then to two FTDIs where the user can maintain communication from the USB to UART1 of the module
and can transmit correction data through UART2 using the same USB port at the same time. The user
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can utilize the USB interface to connect directly to UART1 or UART2, see the Interface description [2]
for configuration details.
4.3.3 DB9 connector (RS232)
The evaluation unit includes an RS232 port for serial communication that is compatible with PC serial
ports. The DB9 connector can only have the UART1 input if the user prefers not to use UART1 from
USB.
Connect using a straight RS232 serial cable with male and female connectors to the port on your PC.
The maximum cable length is 3 meters. To configure the RS232 port, use the CFG-UART1 command
in the u-center application. The maximum operating baud rate is 230400 Baud. If you are using a
USB to RS232 adaptor cable, you can connect it directly to the evaluation kit RS232 port.
The 9-pin D-SUB female connector is assigned as listed in Table 4 and diagram from schematic:
Pin Nr. Assignment
1 Timepulse 1 output (RS232 levels)
2 TXD, GNSS Transmit Data, serial data to DTE
3 RXD, GNSS Receive Data, serial data from DTE
4 Optional time-mark input (RS232 levels) using EXTINT0 (internal jumper J6 fitment required)
5 GND
6 Timepulse 1 output (RS232 levels)
7 Not connected
8, 9 not connected
Table 4: SUB-DB9 connector pin description for EVK-F9P
4.3.4 RST button
The RST button on the front panel resets the unit.
⚠CAUTION Risk of data loss. The RESET pin deletes all information from the volatile memory and
triggers a cold start. Reset the system only as a recovery option.
4.3.5 Safe boot button
This is used to set the unit in safe boot mode. In this mode, the receiver executes only minimal
functionality, such as updating new firmware into the flash memory. To set the receiver in safe boot
mode:
1. Press the BOOT button and keep holding it down.
2. Press the RST button.
3. Release the RST button.
4. Release the BOOT button.
5. If the UART interface is used, a training sequence must be sent to the receiver.
The training sequence is a transmission of 0x55 0x55 at a baud rate of 9600 baud. Wait for at
least 100 milliseconds before the interface is ready to accept commands.
4.3.6 Slide switch
Use the slide switch on the front panel to choose between I2C (and UART) and SPI communication
ports. You must reset the unit by pressing the RST button when the slide switch has been changed.
•I2C – In this selection the EVK operates with the UART (RS232 DB9 – rear panel or the 3.3 V level
TxD (MISO), RxD (MOSI) at the front panel). Also, the communication via 3.3 V DDC interface (I2C)
is selected.
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•SPI – In this selection the EVK operates only with the SPI interface. The RS232 (DB9) port is
switched off.
4.3.7 Pin header
This 14-pin test-connector provides additional functionality to the EVK, allowing access to the
interface pins and an ability to measure the current used by the ZED-F9P module. All pins are ESD
protected.
Pin no. Name I/O Level Description
14 V5_IN I 4.75 - 5.25 V Power input – can be used instead of USB
13 GND - - Common ground pin
12 CUR GPS1 O 5.0 V Supply current measurement (Module current consumption) node 1. Current is
measured over a 1Ω1% tolerance resistor between pins 12 and 11. Pin 12
(CUR_GPS1) is at higher potential.
11 CUR GPS2 O 5.0 V Supply current measurement (Module current consumption) node 2. See
description for pin 12.
10 TxD 2 O - Correction UART output
9 RxD 2 I Correction UART input
8 TIMEPULSE 1 O 3.3V Output signal for the timepulse1 signal
7 EXTINT I 3.3 V External interrupt or time-mark input (connected directly to the module pins)
6 RTK status O 3.3 V RTK status:
0 = RTK/PPP-RTK fixed
blinking = receiving and using corrections
1 = no corrections
5 SDA / CS I/O 3.3 V If slide switch on I2C, the DDC interface is selected; Function: data input /
output
If slide switch on SPI, the SPI interface is selected; chip select input – LOW
ACTIVE
4 SCL / CLK I/O 3.3 V Clock input / output (signals are pulled up and then straight to the module)
3 TxD / MISO O 3.3 V If slide switch on I2C, the DDC interface is selected / UART TxD (3.3 V level)
If slide switch on SPI, the SPI interface is selected; Master in Slave out (MISO)
2 RxD / MOSI I 3.3 V If slide switch on I2C, the DDC interface is selected / UART RxD (3.3V Level)
If slide switch on SPI, the SPI interface is selected; Master out Slave in (MOSI)
1 TX_READY O 3.3 V TX_Buffer full and ready for TX of data
Table 5: Connector pin description for EVK-F9P (pins numbered from right to left on the front panel)
For accurate measurements, use a max 1 m cable. Figure 3 shows an example of a power supply
connected to the test connector by using standard adapter cables from the manufacturer
Hirschmann. Table 5 shows an example for overall current measurement. When connecting the 3.3 V
digital interfaces RS232, SPI and DDC to your application, use a max 25 cm cable.
Figure 3: Example 5V DC power supply
V5_IN
GND
GND
V5_IN
Hirschmann
Part Nr.: 934160100
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4.3.8 LED
On the front panel of the EVK unit, there is a single blue LED with the following functionality:
LED Description
Solid blue The device is powered on with no GNSS fix.
Flashing blue The LED flashes one pulse per second during a GNSS fix.
The time pulse signal is configurable, see the Interface description [2] for details.
Table 6 LED description
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5Measuring current
At start-up, the receiver starts in acquisition state to search for available satellites and to download
GNSS orbital data, i.e., ephemeris and almanac. Once the data has been downloaded, the receiver
enters the tracking state. In continuous operation, the receiver typically remains in the tracking state
once entering it. The current consumption reduces when the receiver enters the tracking state. The
time required to enter the tracking mode can be reduced by downloading aiding data from the
AssistNow™ Online service.
To measure the total GNSS supply current with EVK-F9P, follow these steps:
1. Place the EVK in clear sky view and perform the test with good signals to ensure that the receiver
can acquire the satellite signals.
2. Power up EVK-F9P.
3. Connect a true RMS voltmeter across CUR GPS1 (pin 12) and CUR GPS2 (pin 11) of the 14-pin
connector.
4. Read the voltage (and average if necessary) on the voltmeter and convert to current (1 mV equals
1 mA).
☞The total GNSS current includes the internal LNA, SPI flash and TCXO.
For more details see the schematic in Figure 13
Figure 4: Example – tracking current measurement
Hirschmann
Part No.: 934160100
P1A (VCC)
P1B
P1B
P1A (VCC)
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6RTK setup
To achieve accurate RTK performance, the receiver needs a constant stream of correction data, which
can be obtained from correction data providers via NTRIP or MQTT protocols. Application software is
needed to fetch the data from the provider's server and send it to the receiver through serial ports.
This chapter explains how to use NTRIP and MQTT client on u-center to monitor the RTK status of
the receiver.
6.1 Setting up NTRIP client in u-center
There are paid and free NTRIP services. RTK2go is a free community NTRIP service that hobbyists
and early prototyping can use, as it provides correction data streams from other users. However, for
commercial or production-grade applications, it is recommended to use more reliable commercial
NTRIP services.
Start using the u-center NTRIP client with the following steps:
1. Open u-center and connect to the receiver via Receiver > Connection.
2. Open the NTRIP client settings from Receiver > NTRIP Client.
3. Fill in the NTRIP caster settings fields.
4. To fetch the available mount points from the service, click the Update source table button.
5. Select the correct mount point from the dropdown menu.
6. Press OK to start the NTRIP client.
Figure 5: u-center NTRIP client
The status bar at the bottom of the u-center window shows the service status for monitoring and
debugging. The connection symbol turns green when authentication is successful, and the service is
connected.
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Figure 6: u-center status bar
To see more information about the NTRIP client's operation, click the connection symbol. This will
open the NTRIP Log window.
Figure 7: NTRIP client log
6.2 Setting up MQTT client in u-center
An OASIS standard messaging protocol for the Internet of Things (IoT), MQTT provides a reliable,
robust, and secure messaging protocol for the IoT devices and applications. It is designed as an
extremely lightweight publish/subscribe messaging transport that is ideal for connecting remote
devices with a small code footprint and minimal network bandwidth. (Source: https://mqtt.org/)
PointPerfect is a GNSS augmentation service that utilizes the industry standard SPARTN messaging
format to enable high accuracy with high precision GNSS receivers. The SPARTN format facilitates
the transfer of GNSS correction data with exceptional efficiency.
MQTT serves as the fundamental transport mechanism for various components of the service
including authentication, ancillary services (such as AssistNow), service key delivery, and the service
itself. To support this, u-center incorporates an MQTT client.
Start using the u-center MQTT client with the following steps:
1. Open u-center and connect to the receiver via Receiver > Connection.
2. Open the MQTT client settings from Receiver > MQTT Client.
3. In the Thingstream portal, download the u-center config file associated with your device and
region of operation and add it as the “JSON config file”. For more information on how to sign in to
Thingstream to get the u-center configuration file, visit PointPerfect getting started guide
4. Check the box to “Subscribe to key topic”.
5. Check the box to “Subscribe to AssistNow topic”.
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6. Check the box to “Subscribe to data topic”.
7. Select the data topic using the drop-down menu suitable for the region of operation.
8. Press OK to start the MQTT client.
The status bar at the bottom of the u-center window provides information on the status of the
service for monitoring and debugging purposes. When the authentication is successful and the
service is connected, the connection symbol turns green.
Figure 8: Bottom Status bar of u-center
To view more details of the MQTT client’s operation, click the connection symbol. The MQTT Log
window is displayed.
Figure 9: MQTT client log
6.3 Monitoring RTK status
Make sure the receiver is getting correction data by monitoring the RTK status in u-center (see Figure
15):
•In the general information view (View > Docking Windows > Data), the RTK status is shown in
the Fix status field as “Float” or “Fixed” if RTK is used.
•Alternatively, in the UBX-NAV-PVT message view, the RTK status is shown in the Carrier Range
Status field as “Float” or “Fixed” if RTK is used.
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Figure 10: RTK status in u-center
In open sky scenarios, if the receiver achieves a fixed state in less than two minutes, it indicates that
the receiver, antenna, and correction service are compatible and functioning properly.
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9Component list
Regular Components Description
A1
GNSS RECEIVER U-BLOX ZED-F9P-04B -40/+85C
C1 C2 C3 C27 C31 C33
CAP CER X5R 0402 1U0 10% 6.3V
C4 C5 C6 C10
CAP CER X5R 0402 10U 20% 10V
C7 C8 C11 C15 C23 C24 C25
C26 C28 C29 C30 C32 C34
C35 C38 C39 C40 C41 C43
C44 C45 C46 C47 C48 C49
C50
CAP CER X5R 0402 100N 10% 50V
C9 C21 C22 C42
CAP CER X5R 0603 4U7 10% 6.3V
C16
CAP CER X7R 0402 10N 10% 16V -55/+125C
C17 C18 C19 C20
CAP CER COG 0201 47P 2% 50V
C36 C37
CAP CER COG 0201 18P 5% 50V -55/+125C
C51
CAP CER COG 0402 47P 5% 25V
D1 D2
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER SS14 1A -
55/+125C
D3 D4 D5 D6 D7 D8 D9 D10
D11 D12 D13 D15 D16
VARISTOR BOURNS MLE SERIES CG0402MLE-18G 18V
D14
ESD PROTECTION FOR HIGH-SPEED LINES, TYCO, 0.25PF,
PESD0402-140 -55/+125C
DS1
LED OSRAM HYPER MINI TOPLED LB M673-L1N2-35 BLUE 0.02A
J1
14PIN 90° 2.54MM PITCH DISCONNECTABLE CRIMP CONNECTOR -
40/+85C
J2
CON SMA SMD STRAIGHT JACK 11.4MM HEIGHT WITHOUT WASHER
AND NUT
J3
9 POLE SUBD CONNECTOR FEMALE
L1
IND MURATA LQG15H 0402 47N 5% 0.2A
Q1
COMPLEMENTARY N- AND P-CHANNEL 20V (D-S) MOSFET VISHAY
Si1016 SC89-6
R1
RES THICK FILM CHIP 0402 CURRENT SENSE 1R 1% 1.1V -55/+125C
R2 R11
RES THICK FILM CHIP 0402 100R 5% 0.1W
R3
RES THICK FILM CHIP 0402 51R 1% 0.1W -55/+155C
R4 R5 R22 R41 R43
RES THICK FILM CHIP 0402 10K 5% 0.1W
R6 R7 R18 R19
RES THICK FILM CHIP 0201 0R 0 0.5A
R8
RES THICK FILM CHIP 0805 10R 5% 0.125W -55/+155C
R9
RES THICK FILM CHIP 0402 1K0 1% 0.063W
R10 R24 R25 R26 R27 R28
R29 R30 R31 R32 R33 R34
R39 R40 R42 R44
RES THICK FILM CHIP 0402 100K 1% 0.063W
R12 R13
RES THICK FILM CHIP 0402 56K 5% 0.1W
R14 R15 R16 R17
RES THICK FILM CHIP 0402 27R 5% YAGEO 27R 5% 0.063W -
55/+155C
R23
RES THICK FILM CHIP 0201 51K 1% 0.05W
This manual suits for next models
2
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