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RXQ1

型号：

RXQ1

描述：

FM窄带收发器[ FM NARROW BAND TRANSCEIVERS ]

品牌：

RFSOLUTIONS[ RFSOLUTIONS.LTD ]

页数：

12 页

PDF大小：

352 K

下载PDF手册
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
•
•
•
•
•
•
•
•
•
•
RF Transceiver or Intelligent Modem Versions  
Host Data Rate upto 19,200 Baud  
Data Rates to 20 K baud.  
2 Selectable RF Channels  
Narrowband Crystal Controlled  
Optimal Range 200m  
Supply Voltage 3-5V  
Very Stable Operating Frequency  
Low Profile Ceramic DIL Package  
Operates from –20 to +850C  
RXQ1 Version  
•
RF Transceiver Version Only  
Applications  
TRXQ1 Version  
•
•
•
•
•
Wireless Security Systems  
•
•
•
•
Transceiver With RF600T Incorporated  
Serial Data Interface with Handshake  
Selectable Dumb or Intelligent Modem Modes  
On Board 190 Byte Buffer  
EPOS Terminals  
Sensor Data logging  
Remote Telemetry & Telecommand  
Remote Meter Reading  
Description  
The RXQ1 / TRXQ1 radio transceiver modules provide reliable wireless communications for the transfer of  
data at rates of up to 20 K baud. Their unique features of narrow band operation and user channel selection  
combined with excellent interference rejection make them an ideal choice for next generation applications.  
Operating within the 433.92MHz band the modules can operate in two narrow band channels; 433.92 MHz  
and 434.33MHz. The modules use a crystal controlled design which provides narrow band performance which  
is far superior to other wideband ‘SAW’ based designs.  
The TRXQ1 Smart Radio Transceiver has the functions of a complete radio modem, it simply requires  
CMOS/TTL data at the transmit input and the corresponding transceiver(s) output the same data  
There RXQ1 provides a basic Radio transceiver.  
Possible applications include one-to-one and multi-node wireless links in applications including car and  
building security, EPOS, inventory tracking, remote industrial process monitoring and computer networking.  
Because of their small size and low power requirements, both modules are ideal for use in portable, battery-  
powered applications such as hand-held terminals.  
Part Numbering  
Part Number  
TRXQ1-433F  
FM-RXQ1-433  
RF600T-EVAL  
Description  
Smart Transceiver Module 433MHz  
Transceiver Module 433MHz  
Evaluation Kit for Smart Radio Modules  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 1  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
RXQ1 Pinout Detail  
Top View  
RF Gnd.  
1
18 Channel Select  
17 Vcc  
Antenna  
RF Gnd.  
nc  
2
3
4
5
6
7
8
9
16 Rx Select  
15 Tx Select  
14 Tx Data  
13 nc  
Gnd.  
nc  
nc  
12 Rx Data  
11 nc  
nc  
RXQ1  
FM Transceiver  
Gnd.  
10 Gnd.  
30.48  
Pin Descriptions  
Pin  
Number  
Name  
Type  
In  
Description  
For best results, these pins should be connected to the ground  
plane against which the antenna radiates.  
Nominal 50 ohm input/output impedance capacitively isolated from  
the internal circuit.  
1,3  
2
RF GND  
Antenna  
In / Out  
4, 6, 7, 8,  
11, 13  
-
No Connection  
nc  
5, 9, 10  
In  
Connect to 0 volts.  
GND  
Received data output to host controller (CMOS logic out)  
representing true data as supplied to the transmitter.  
12  
Out  
In  
Rx  
Tx  
Transmit data input from host controller  
Data input to the transmitter can be directly interfaced to CMOS  
logic drive operating on the same supply voltage as the transceiver  
14  
15  
16  
In  
In  
Transmit select. Active LOW.  
Receive select. Active LOW.  
Tx SELECT  
Rx SELECT  
Positive supply voltage connection. Decouple with 100n ceramic  
capacitor to ground.  
17  
In  
Vcc  
Channel Select;  
18  
In  
CS  
Logic 0 selects 433.92MHz  
Logic 1 selects 434.33MHz  
Operation Table  
Tx Select  
RX Select  
Function  
0
0
1
1
0
1
0
1
Power Down Mode  
Transmit Mode  
Receive Mode  
Power Down Mode  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 2  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
RXQ1 Operating Parameters  
Absolute Maximum Ratings  
Operating temperature:  
Storage temperature:  
Supply Voltage  
-20 0 C to +70 0 C  
-40 0 C to +100 0 C  
-0.3 to 6V  
Data input  
-0.3 to Vcc + 0.3v  
Electrical Characteristics:  
Min.  
Typ.  
Max.  
Units  
Notes  
DC Levels  
Supply voltage  
2.7  
3
26  
12  
8
5.25  
V
mA  
mA  
uA  
V
1
Supply current (Transmit Mode)  
Supply current (Receive Mode)  
Supply current (Standby Mode)  
Data input/output high  
Data input/output low  
0.7xVcc  
0
Vcc  
0.3xVcc  
V
RF  
433.92 /  
434.33  
-100  
Working Frequency  
MHz  
Receiver sensitivity  
RF power out (transmitter)  
FM Deviation  
IF Bandwidth  
Harmonic Spurious Emissions  
dBm  
dBm  
KHz  
KHz  
dBc  
5
Into 50Ω  
+/- 15  
65  
85  
-50  
Operating Temperature  
-20  
+70  
Deg C  
Dynamic Timing  
Power up to stable receiver data out  
Power up to full RF out  
Standby to RX mode  
5
4
3
2
3
1
mS  
mS  
mS  
mS  
mS  
mS  
bps  
2
2
Standby to TX mode  
Changing from TX to RX mode  
Changing from RX to TX mode  
Data Bit rate  
20  
20,000  
Notes  
1. Supply voltage should have <10mV ripple.  
RXQ1 Applications  
The RXQ1 is a dual band ‘transceiver only’ RF module, which has applications in many areas where reliable  
half duplex communications are required over ranges up to 200 metres. The crystal controlled narrow band  
design gives optimum performance in the 433 MHz band and the dual channel capability allows for the design  
of more complex networks than had previously been possible.  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 3  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
RXQ1 Application Information with RF600T  
The circuit below shows a typical application of the RXQ1 in conjunction with the RF600T low power radio  
transceiver controller. A 9 way ‘D’ connector provides an RS232 termination to the host system and the RXQ1  
hybrid contains all of the circuitry required to implement the RF path. The RF600T operates as a transceiver  
controller and performs all of the functions necessary to implement either a ‘dumb’ or an intelligent modem  
with automatic retry and proof of deliver functions built in to the system. In many applications it will be possible  
to dispense with the option links and hard-wire options to their desired settings but note however option  
selection must be carried out exactly as described in the RF600T data sheet.  
This implementation of TRXQ1 module and RF600T is available as the composite hybrid TRXQ1 which is  
described in this data sheet.  
2K2  
2K2  
2K2  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 4  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
TRXQ1 Pinout Detail  
Top View  
RF Gnd.  
Antenna  
1
2
18 Vcc RF  
17 Dig. Gnd.  
16 RF Baud  
15 Host Baud  
14 Rx Data  
13 TX Data  
12 Mode  
Channel Select  
IN #1  
3
4
5
6
7
8
9
IN #2  
OUT #1  
OUT #2  
LRN/LED  
\CTS  
11 \RTS  
TRXQ1  
Intelligent FM Transceiver  
10 Vcc Digital  
30.48  
Pin Descriptions  
Pin  
Number  
Name  
Type  
Power  
In / Out  
Description  
For best results, this pin should be connected to the ground plane  
against which the antenna radiates.  
Nominal 50 ohm input/output impedance capacitively isolated from  
the internal circuit.  
1
2
RF GND  
Antenna  
Channel select option.  
3
In  
CS  
Logic 0 selects 433.92MHz  
Logic 1 selects 434.33MHz  
Logic input #1  
4
5
6
7
8
In  
In  
IN #1  
IN #2  
Logic input #2  
Logic output #1  
Out  
Out  
In/Out  
OUT #1  
OUT #2  
LRN/LED  
Logic output #2  
Learn switch and status LED.  
Logic ‘0’ is Clear To Send.  
Connect to 0 volts via 2.2K to enable loop mode.  
Positive supply voltage connection.  
Logic ‘0’ is Request To Send.  
9
Out  
\CTS (loop)  
10  
11  
Power  
In  
Dig Vcc  
\RTS  
Mode select option.  
12  
In  
Logic ‘1’ or open selects addressed mode.  
Logic ‘0’ selects broadcast mode.  
MODE  
13  
14  
In  
Serial async. data input from the host.  
Serial async. data output to the host.  
TxData  
RxData  
Out  
Host baud rate selection option.  
15  
16  
In  
In  
Logic ‘1’ or open selects 9600 bauds.  
Logic ‘0’ selects 19200 bauds.  
RF baud rate (element time) select option.  
Logic ‘1’ or open selects 400 us element time.  
Logic ‘0’ selects 200 us element time.  
Host Baud  
RF Baud  
17  
18  
Power  
Power  
0 volts.  
GND  
RF supply voltage connection. Level to be as Vcc Digital on pin 10  
Decouple with a 100n capacitor close to the module supply pins.  
VccRF  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 5  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
TRXQ1 Operating Parameters  
Absolute Maximum Ratings  
Operating temperature:  
Storage temperature:  
Supply Voltage  
-20 0 C to +70 0 C  
-40 0 C to +100 0 C  
-0.3 to 6V  
Data input  
Maximum output current  
-0.3 to Vcc + 0.3v  
+/- 25 mA  
Electrical Characteristics:  
Min.  
Typ.  
Max.  
Units  
Notes  
DC Levels  
Supply voltage  
3.0  
5.0  
28  
14  
5.25  
V
1
Supply current (Transmit Mode)  
Supply current (Receive Mode)  
Data input/output high  
Data input/output low  
Output Pin Current rating  
LED sink current  
mA  
mA  
V
V
mA  
mA  
0.7xVcc  
0
Vcc  
0.3xVcc  
25  
-
5.0  
25  
RF  
433.92 /  
433.33  
-100  
Working Frequency  
MHz  
Receiver sensitivity  
RF power out (transmitter)  
FM Deviation  
IF Bandwidth  
Harmonic Spurious Emissions  
dBm  
dBm  
KHz  
KHz  
dBc  
5
Into 50Ω  
+/- 15  
65  
85  
-50  
Operating Temperature  
-20  
+70  
Deg C  
Notes  
1. Supply voltage should have <10mV ripple.  
TRXQ1 Design Data  
The TRXQ1 is an intelligent dual band communications module consisting of the RXQ1 transceiver circuitry  
and an RF600T embedded controller IC. Designers should study the RF600T data sheet (DS601) since this  
contains detailed information on the operation of this device. The design information given below should be  
read in conjunction with this data sheet.  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 6  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
TRXQ1 Operating Modes  
The device is capable of operation in one of two modes, either broadcast or addressed. The following  
description describes the features of these mode and assumes two TRXQ1 nodes ‘A’ and ‘B’. The RF600T  
must be configured before power up for either the broadcast or addressed mode of operation by means of the  
MODE pin. Note that for security, broadcast nodes will not receive data from addressed nodes  
Broadcast mode.  
This mode allows a host generated data block from node ‘A’ to be transmitted and received by any number of  
other nodes. This data is received and verified (for correct Manchester coding and CRC) by the other nodes  
before being output to their host devices. Alternately, in the same way the other nodes can send data to node  
‘A’. Note that although any node can initiate a transfer, only one direction of transfer can be active at a given  
time. Correct reception of a data packet is not acknowledged and the node hosts have the responsibility of  
ensuring that data transfers occur as required by operating some form of message protocol over the half  
duplex data link.  
Addressed mode  
This mode allows a host generated data block from node ‘A’ to be transmitted and for the data frame to be  
addressed to one other network node – in this case we assume node ‘B’. When the data is received by node  
‘B’ it is verified for correct Manchester coding, CRC and for address match and then an acknowledge  
message is transmitted back to node ‘A’. Node ‘A’ then outputs a confirmation to the host in the form of the  
ASCII character ‘C’ (Confirmed). Note that confirmation is given when the data block is stored in the buffer of  
node ‘B’ and not when it has been delivered to the host at node ‘B’.  
All message transfers are tagged with the addresses of both the origin and destination, thus ensuring secure  
data transfer at all times. Either node ‘A’ or node ‘B’ can initiate a transfer but only one direction of transfer  
can be active at a given time. In the event that the originating node does not get confirmation of receipt of the  
data packet, the software re-tries the transfer five times after which node ‘A’ will output an error message to  
the host in the form of the ASCII character ‘F’ (Failed).  
Correct reception (or otherwise) of a data packet is thus acknowledged and the host devices are relieved of  
most of the workload of ensuring that data transfers occur as required.  
The RF600T must be configured before use for either the broadcast or addressed point to point mode of  
operation and details of how this is carried out are given in the following section.  
System Operation  
Each RF600T is programmed at manufacture with a 24 bit serial number which uniquely identifies the device.  
In an addressed point to point system, these serial numbers are used as the device address for the nodes in  
the system and non-volatile eeprom memory in the device stores the address of the ‘other’ node in the system.  
If, as at time of manufacture, no address has been stored in the device or if the address has been erased then  
the device will only operate in the broadcast mode. If however an address has been stored then the device will  
also be able to operate in the addressed point to point mode.  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 7  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
If operation in the broadcast mode is required then with a new device, no action is necessary. If a device has  
been used in the point to point addressed mode or if its status is unknown then status erase must be carried  
out using the following procedure.  
The LEARN pin is grounded for a period of 5 seconds and is then allowed to float, please note the unit must  
be in addressed mode in order to do this. The status LED then flashes slowly for 3 seconds to indicate that  
the device is erased and will now only operate in the broadcast mode until the learn sequence is repeated.  
If operation in the addressed mode is required then the following procedure has to be followed to allow the two  
nodes in the system to operate together.  
The option for addressed mode is selected.  
The two nodes, ‘A’ and ‘B’ are placed within radio range of one another are powered up.  
The LEARN pin on one device – say ‘B’ is briefly taken low, placing the node into learn mode.  
The LEARN/ERASE status LED on ‘B’ comes on and remains on for 20 seconds. If within this  
period, no ‘learn’ data packet is received (see below) then the LED will be extinguished and the  
device will operate normally.  
At node ‘A’, the LEARN pin is briefly taken low. The LEARN/ERASE status LED will then come  
on and node ‘A’ will transmit its address.  
Node ‘B’ will receive and store the address of ’A’.  
Node ‘B’ sends back to node ‘A’ both its address and that of node ‘A’.  
Node ‘A’ receives and stores the address of ’B’ and confirms to ‘B’ that it has received the its  
address.  
Both node ‘A’ and ‘B’ LED's flash their its status LED’s rapidly for 3 seconds to show that they  
have learned each others addresses.  
Addressed mode can then be entered by setting the mode selection pin on the chip as  
described in the PIN Descriptions table on page 5.  
(other nodes which may be active will ignore this transfer since they have not been placed in the learn mode)  
LRN/LED pin (addressed mode only)  
The learn/LED pin is used both to sense the learn/erase switch and also to drive the indicator LED and should  
be connected as shown in the RXQ1 application circuit. The switch, which should be of the normally open  
type, should be connected from the learn pin to ground. The LED and its series current limiting resistor should  
be connected from Vcc to the learn pin, ensuring that the maximum current drawn by the LED (as given in this  
data sheet) is not exceeded.  
TRXQ1 Loop Mode  
Loop mode is provided to allow testing of the performance of a system and allows node ‘A’ to transmit a data  
packet which will be looped back by node ‘B’ and received by node ‘A’. The mode settings of the nodes are  
ignored in the loop mode and the transfer is carried out in broadcast mode. The mode must only be selected  
when there are just two nodes in a network.  
If we assume that we wish to send a host data packet from node ‘A’ to node ‘B’ and have the packet returned  
such that host ‘A’ receives back its data packet then the LOOP link in node ‘A’ should be made before that unit  
is powered up. This unit will now only operate in the loop mode until it is powered down, the loop link removed  
and then powered up again.  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 8  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
TRXQ1 application schematic: RS232 connection to host PC.  
Connection of the TRXQ1 to an RS232 host terminal device such as a PC serial port can be simply carried out  
using the circuit shown below. The 9 way ‘D’ socket (CON1) provides the standard pinout required to connect  
directly to the serial port of any PC using a 9 way male/female cable. The MAX222 provides level conversion  
between the RS232 levels on the serial port and the logic levels pins of the TRXQ1 module. (note that direct  
connection of RS232 levels to the module will result in immediate destruction of the device)  
The TRXQ1 hybrid requires the following 4 signal connections to operate correctly:  
Tx Data:  
Rx Data:  
\CTS:  
this is serial data which is to be transmitted by the hybrid.  
this is serial data which has been received by the hybrid.  
this control output to the host is low when it is Clear To Send data to the hybrid.  
this control input from the host is low when it is making a Request To Send data from the hybrid.  
\RTS:  
In this circuit, option selection is as follows:  
RF Baud rate (pin 16):  
Host Baud Rate (pin 15):  
Mode (pin 12):  
this pin is pulled high via a 22K resistor which selects 9600 bauds.  
this pin is pulled high via a 22K resistor which 400 us element time.  
this pin is pulled high via a 22K resistor which addressed mode.  
If two such circuits are constructed then it will be possible to interconnect two PC’s and test out the  
performance of the hybrids. When both circuits are powered up is will be necessary for them to learn one  
another’s identity as described fully in the RF600T data sheet (DS601). That is – press the learn switch in one  
circuit, then in the other and the two learn LED's should flash showing that the learn has taken place.  
The addressed mode operates as a point to point half duplex system with automatic retry and indication to the  
transmitting host of the status of the transfer. Again the RF600T data sheet gives full information on this mode  
of operation.  
NOTE: pins 16, 15, 12 should not be left floating as these control important features of the TRXQ1 such as the  
baud rate and Mode of operation. Ensure that these pins are pulled either high with a ~22K resistor or pulled  
low with a ~2K2 resistor.  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 9  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
TRXQ1 application schematic: logic level connection to host micro controller.  
Direct connection of the TRXQ1 to a host micro controller allows the design of complex systems where the  
host micro controller provides all of the processing power and the TRXQ1 acts as the data carried between  
system nodes.  
The use of the broadcast mode will allow multiple transceiver systems to be implemented and with suitable  
software and a user defined protocol is will be possible to implement complex networks where control of the  
data path, retries etc. are under the control of the designer.  
Where a point to point system is required then the addressed mode will provide this and also give the required  
level of security. This, along with the automatic retry feature of the TRXQ1 module will remove from the  
system designer all of the normal overhead of writing communications software.  
As was the case with the RS232 example given above, the TRXQ1 hybrid requires 4 signal connections to  
operate correctly.  
TxHOST:  
RxHOST:  
\CTS:  
serial data which is to be transmitted by the hybrid.  
serial data which has been received by the hybrid.  
control output to the host is low when it is Clear To Send data to the hybrid.  
control input from the host is low when it is making a Request To Send data from the hybrid.  
\RTS:  
In some addressed mode applications the learn/erase components may not be required and the LRN/LED pin  
could be connected to the host micro controller which would be programmed to handle the functions of this  
pin.  
Where the module is to be used in the broadcast mode then the learn/erase components will not be required  
which will lead to further simplification of the circuit.  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 10  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
Antenna Design  
The design and positioning of the aerial is as crucial as the module performance itself in achieving a good  
wireless system range. The following will assist the designer in maximising system performance.  
The RF ground pin should be connected to a ground plane which should shield the aerial connection and the  
PCB layout around the aerial track itself should be such as to give a 50 Ohm impedance. The aerial should be  
kept as far away from sources of electrical interference as physically possible. The specified power supply  
decoupling capacitors should be placed close to the module as possible and have direct connections to the  
relevant pins.  
The antenna ‘hot end’ should be kept clear of any objects, especially any metal as this can severely restrict the  
efficiency of the antenna to receive power. Earth planes restricting the radiation path of the antenna will also  
have the same effect.  
The best range will be achieved with either a straight piece of wire, rod or PCB track @ ¼ wavelength (15.5cm  
@ 433.92MHz). Increased range may be achieved if this ¼ wave antenna is placed perpendicular to and in  
the middle of a solid earth plane measuring at least 16cm radius. In this case, the antenna should be  
connected to the module using 50 Ohm coaxial cable and the PCB track layout tips given above should be  
observed.  
Helical Antenna  
Whip Antenna  
RF  
RF  
15.5cm @ 433MHz  
34mm @ 433MHz  
17 turns equally spaced  
∅
= 5mm (inside)  
Smart Radio Evaluation Kit (Please see Datasheet DS605)  
The Smart Radio Evaluation Kit provides a hardware platform to enable  
fast development of Radio applications.  
Supplied as a pair of boards, each can accept a variety of RF Modules  
including transmitters, receivers and transceivers, an RS232 port is  
incorporated for direct connection to a PC.  
The boards may be used for a wide range of tasks from simple RS232  
data transmission to integrated system development and is the ideal  
platform for exploring the advantages of using the “Smart Comms” range  
of ICs and radio modules.  
This eliminates the need to construct hand-wired prototype boards, which  
are rarely successful in creating a valid environment for the development  
of radio systems. (prototyping board also contains large stray capacitance  
values which has a detrimental effect on the RF connections).  
• Hardware Platform for Radio Comms Development  
Contents  
• Accepts Various RF Modules  
• RS232 Interface to PC  
• Supplied with RF600T Smart Comms Controller  
• Performs all Data Encryption for Reliable Data Comms.  
• Two Telemetry I/O Lines (addressed mode only)  
• Range Testing  
•
•
•
•
Two Eval Boards  
Two RF600T Comms Controllers  
Circuit diagrams  
Two RS232 PC cables  
Radio Modules and Antenna available  
Separately.  
• Target Environment Testing  
• Antenna Evaluation  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 11  
TRXQ1  
RXQ1  
FM NARROW BAND TRANSCEIVERS  
Mechanical Detail  
RF Solutions Ltd.,  
Unit 21, Cliffe Industrial Estate,  
South Street,  
Lewes,  
E Sussex, BN8 6JL. England  
Tel +44 (0)1273 898 000  
Email sales@rfsolutions.co.uk  
Fax +44 (0)1273 480 661  
http://www.rfsolutions.co.uk  
RF Solutions is a member of the Low Power Radio Association  
All Trademarks acknowledged and remain the property of the respected owners  
Information contained in this document is believed to be accurate, however no representation or warranty is given and R.F. Solutions Ltd. assumes no liability with respect to the accuracy of such  
information. Use of R.F.Solutions as critical components in life support systems is not authorised except with express written approval from R.F.Solutions Ltd.  
DS0353-9 March ‘05  
©2005 Reg. No. 227 4001, ENGLAND  
Page 12  
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RFE

 		RXQ 铝电解电容器RXQ系列： 105℃ ，可达10000小时[ ALUMINUM ELECTROLYTIC CAPACITORS RXQ Series: 105C, up to 10,000 hours ] 2 页

ROHM

 		RXQ040N03 4V驱动N沟道MOSFET[ 4V Drive Nch MOSFET ] 7 页

ROHM

 		RXQ040N03TCR [ Power Field-Effect Transistor, 4A I(D), 30V, 0.07ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TSMT6, 6 PIN ] 7 页

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