rfw102 ETC-unknow, rfw102 Datasheet

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rfw102

Manufacturer Part Number
rfw102
Description
Rfw102 Transceiver Chipset Shortrang
Manufacturer
ETC-unknow
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
rfw102-M-A-K
Manufacturer:
INTEL
Quantity:
22
Datasheet
October 2002
Rev. 1.03
Key Features
General Description
The RFW102 ISM Transceiver Chipset is a short-
range, half duplex wireless radio transceiver. The
transceiver is intended for use in the world wide
unlicensed Industrial Scientific and Medical (ISM)
band of 2400-2483.5MHz, complying with the
FCC
regulations and standards. The chipset consists
of 3 chips, offering small size, low power
consumption
applications.
As illustrated in Figure 2, implementing a
transceiver using the RFW102 chipset is simple
and easy. Only a few passive components
(capacitors and inductors) are required in
addition to the chipset (3 chips). In addition, an
antenna of 200Ω impedance or a matching circuit
to
implemented as part of the circuit layout. The
transceiver has a fully digital serial I/O interface
providing a simple 3-line interface, requiring NO
RF knowledge to use.
The transceiver provides a peak output power of
2dBm and data rate transfer of up to 1Mb/s.
Figure 1: Actual Size of a Typical Transceiver
Designed for short range wireless
communication in 2.4GHz - world wide
license free band
Data rate – up to 1Mb per second
Simple interface – 3 line digital interface
Low power consumption – ideal for
battery operated devices
+2dBm typical peak output transmission
power
-80dBm typical sensitivity
Typical standby current of 2.6µ µ µ µ A
Complies with FCC regulations
a
(part
50Ω
Using RFW102 Chipset
15.247)
and
impedance
simple
and
antenna
ETSI
integration
(300
can
328)
into
be
Typical Applications
Power consumption during transmit is extremely
low (21mA in 1Mb/s, 28µA in 1Kb/s), directly
depending on the bit transfer rate. During
standby, ACT = GND, the transceiver consumes
almost no power (2.6µA @ Vcc=3V) and features
an extremely short wakeup time of 20µs. This
results in a very efficient power consumption
management method, by using the standby mode
in a frequent manner.
The communication link between the transceivers
is a Direct Sequence Spread Spectrum (DSSS)
pulse pipe. The modulation scheme is 100%
Amplitude Shift Keying (ASK). The spreading
modulation scheme is Bi-Phase modulation
where each bit has a 13 bit Barker series.
Figure 2: Transceiver Implementation - Using
DataIO
RFW102 ISM Transceiver Chipset
Tx/Rx
Vcc
Wide range operating voltage (2.7 – 3.6V)
Direct Sequence Spread Spectrum
(DSSS) 11dB processing gain
Short signal acquisition time (1.2µ µ µ µ s)
Home automation and security
Industrial automation
Peripherals: keyboards, mice, game pads
Remote control devices
Toys and games
GND
GND
RFW488R
OSCO
OSCI
R2
GND
GND
RFW102 Chipset
L4
C1
VCC
L5
C2
DataIO
SAWG
OSCO
VccLO
VccGD
VccRF
GND
OSCI
C4
CAP
GND
RFWaves Ltd.
SAWG
NSAWG
GND
GND
PORT 2,44GHz
Tx/Rx
RFW24
NRF
ANTENNA
RFW488C
SAWIF
GND
RF
IF
C5
GND
GND
GND
GND
NSAWD
SAWD
L6
NSAWD
VccGD
VccRF
SAWD
VccPD
NLC
ACT
LC
VCC
C6
L1
VCC
L7
L3
R3
C3
VCC
L2
VCC
GND
ACT

Related parts for rfw102

rfw102 Summary of contents

Page 1

... Typical standby current of 2.6µ µ µ µ A • Complies with FCC regulations General Description The RFW102 ISM Transceiver Chipset is a short- range, half duplex wireless radio transceiver. The transceiver is intended for use in the world wide unlicensed Industrial Scientific and Medical (ISM) band of 2400-2483 ...

Page 2

... MOS gates. Life Support Policy and Use in Safety-Critical Applications RFWaves’ products are not authorized for use in life-support or safety-critical ! ! ! ! applications. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Min. Max. -0.3 6 -0.3 Vcc + 0.3 -10° ...

Page 3

... DataIO Source Current in Standby Mode Sink Current in Standby Mode Transmit to Receive Transition Time Receive to Transmit Transition Time Antenna Load Processing Gain PG Bit Rate © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Symbol Condition Min. Vcc 2 ACT=GND shdn I/O=High Z @Vcc = 3V ...

Page 4

... When transmitting a uniform distribution of ‘1’ and ‘0’ bits. (2) Burst transmission. Assuming that when not transmitting goes down to Standby mode (ACT=0). (3) Tested using RFWaves layout and antennas with ERW102 evaluation kit. Measured from a distance of 3m. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Symbol Condition Min. Pout @Vcc = 3.3V -3 ...

Page 5

... Assuming that when not receiving goes down to Standby mode (ACT=0) and the receiver is synchronized with the transmitter. (2) Time between the end of the received power and the Data Out pulse. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Symbol Condition Min. T acq ...

Page 6

... Datasheet October 2002 Rev. 1.03 Transceiver Interface The transceiver implementation using the RFW102 chipset (see Reference Design) includes the following interface. Name Characteristic Vcc IC power supply input. A regulated voltage of 2.7-3.6Volts. GND Apply the supply ground to this pin. Tx/Rx* Mode selection input. Apply Vcc for transmit mode. ...

Page 7

... Transmit to Receive Timing 0 Time (us) TxRx ACT H DataIO Input Output Signal Input Signal Data Out Receive to Transmit Timing 0 Time (us) TxRx ACT H DataIO Output Input Signal Output Signal © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset 1 2 Output Tt_to_r Tacq 1 2 Input Tr_to_t ...

Page 8

... Interrogation: In order to produce the spread sequence (in the transmitting side of the module) the SAW is interrogated by a 488MHz 76ns RF pulse. The pulse is characterized by a rise/fall time of 30ns and a flat time of 16ns as shown in Figure 4. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset State Machine 1952MHz 1@ ...

Page 9

... The pulse shaping effect is easily noticed in the time domain. Whenever a phase inversion occurs, it involves a ‘soft’ envelope around it – hence lowering the side bands. A measurement of the spectral density of the signal is presented in Figure 6. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset 0 200 400 ...

Page 10

... A source for the front end up/down conversion circuitry The circuit consists of a SAW-resonator based oscillator (RFW488R), whose frequency is multiplied achieve the desired up-conversion frequency. The most important feature of this circuit is the fast wakeup time (<35µs from standby to stability). © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Autocorrelation 0.5 1 1.5 Time [µ ...

Page 11

... The 1 nd amplification is in the IF, and the 2 rejections. SAW interface Figure 10: RF Front End Block Diagram © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset system X4 SWcont Pulse Power Control SAW Amp ...

Page 12

... In order to maintain the high dynamic range that is required, a logarithmic peak detector is applied. It can be modeled as V =α*P where dBm (logarithmic), and V out in, in © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Peak LNA2 SAW Detector {optional AGC} {optional AGC} st stage of the ASK receiver. Since its input may have a very is in volts (linear) ...

Page 13

... RFIC. • Input impedance: 200Ω, non differential. Figure 13: Peak Detectors & ASK Receiver © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Pin[dBm] saturation . Between these two points, the peak detector max <-82dBm, Pmax> -5dBm . ...

Page 14

... The decision stage is the final one in the receiving link the stage where the final signal processing is done. Its output is a digital pulse, that indicates whether a valid signal has been identified or not. It consists of an analog comparison stage followed by a simple state machine. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset =I*t/V=10[mA]*0.5[µs]/820[mV]=6[nF] =I*t/V=0.2[µA]*100[µs]/10[mV]=2[nF] =I*t/V=10[mA]*3[µs]/820[mV]=36[nF] =I*t/V=0.2[µ ...

Page 15

... Acont (internal signal to control the power amplifier) – ‘H’ enables voltage to output power amplifier. • Rxcont (internal signal to control the receiving link) – ‘H’ activates the receiving link. Rxcont ≡ not (Tx/Rx). © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset + Analog Comparator Vref=Vi-V ...

Page 16

... Datasheet October 2002 Rev. 1.03 Act='L' Compout<-'H' Rx state machine Figure 15: General State Machine Block Diagram © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Act='L' start Act='H' Oscillator not stabilized activate oscillator Tx/Rx<-'L' Tx/Rx='H' 1.4 uSec Delay DATA I/O DATA I/O Tx/Rx<-'L' output input mode mode 1.4 uSec Delay Tx/Rx< ...

Page 17

... IF Output/Input to/from the IF (SAWIF) to the SAW. Characteristic impedance of pin: 3-13j) Ω @ 488MHz ( 8 GND Ground 9 NG Ground 10 G Input of the transmitted pulse (SAWG) to the SAW. Characteristic impedance of 3-13j) Ω @ 488MHz pin: ( © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset 5-112j) Ω 17 ...

Page 18

... RFW488R Resonator Chip (6 pin) Pin # Symbol Description 1 GND Ground 2 OS The serial resonance between this pin & pin 5 3 GND Ground 4 GND Ground 5 NOS The serial resonance between this pin & pin 2 6 GND Ground © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset 18 ...

Page 19

... Datasheet October 2002 Rev. 1.03 Reference Design *Based on RFWaves reference design layout. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset 19 ...

Page 20

... These drawings are subject to change without notice. RFW24 Top View RFW24 Bottom View Side View D © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Sym. Min Nominal Max A 0.85 0.90 0.95 A1 0.18 0.20 0.22 C 0.325 A2 0.68 0.70 0.72 D 3.90 4.00 4.10 D1 2.50 BSC E1 2.50 BSC E2 3.90 4.00 4.10 B 0.18 0.23 0.28 T 0.10 ...

Page 21

... Datasheet October 2002 Rev. 1.03 RFW488C Top View 488C 4 3 Bottom View Side View © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset Symbol mm A 2.54 B 3.00 C 2.54 D 1.27 E 0.10 F 0.90 G 1.40 H 0.80 N 0.60 M 0.30 T 7. Mil 100.0 118.11 100.0 50 ...

Page 22

... Datasheet October 2002 Rev. 1.03 RFW488R Bottom View Side View © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset 2 3 Symbol mm A 3.80 B 3.80 C 1.90 D 0.85 E 0.60 F 2.54 G 0.10 H 0.10 I 1.90 J 0.33 L 0.25 M 1.00 22 ...

Page 23

... RFWaves Ltd. may make changes to the material contained in this publication at any time without notice and without obligation. © 2002, RFWaves LTD. RFW102 ISM Transceiver Chipset For more information please contact: RFWaves Ltd. 5 Yoni Netanyahu St. ...

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