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PDF TRC104 Data sheet ( Hoja de datos )
| Número de pieza | TRC104 | |
| Descripción | RF Transceiver | |
| Fabricantes | RF Monolithics | |
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Product Overview
TRC104 is a single chip, multi-channel, low power RF transceiver. It is an
ideal fit for low cost, high volume, two-way short range wireless applications
operating in the worldwide unlicensed 2.4 GHz ISM band. The TRC104 is
FCC & ETSI certifiable. All critical RF and base-band functions are integrated
in the TRC104, minimizing external component count and simplifying design-
in. Only a microcontroller, crystal and several passive components are
needed to create a complete, robust radio function. The TRC104 includes a
set of low-power states to reduce overall current consumption and extend
battery life. The small size and low power requirements of the TRC104 make
it ideal for a wide variety of short range radio applications. The TRC104
complies with Directive 2002/95/EC (RoHS).
Pb
TRC104
2.4 GHz
RF Transceiver
Key Features
• Modulation: GFSK with frequency hopping
spread spectrum capability
• Frequency range: 2401-2527 MHz
• 127 Channels
• High sensitivity: -95 dBm @ 250 kb/s
• High data rate: Up to 1 Mb/s
• Low current consumption -
Receive current: 18 mA
Transmit current: 13 mA @ 0 dBm
• Up to 1 mW transmit power
• Wide operating supply voltage: 1.9 to 3.6 V
• Low sleep current: 0.4 µA
• Integrated PLL, IF and base-band circuitry
• Integrated data & clock recovery
• Programmable RF output power
• 32-byte Transmit/receive FIFO
• Programmable TX/RX FIFO depth
• Continuous & protocol modes
• Packet destination and sender addressing
• Packet handling features -
Packet address filtering
Error detection
• SPI configuration & data interface
• TTL/CMOS compatible I/O pins
• Low-cost crystal reference
• Integrated RSSI
• Integrated crystal oscillator
• Host microcontroller interrupt outputs
• Programmable data rate
• Integrated 16-bit packet CRC
• Integrated DC-balanced data scrambling
• Integrated voltage regulators
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•
Four power-saving operating states
• Very low external component count
• Small plastic package: 24-pin QFN
• Standard 13 inch reel, 3K pieces
Applications
• Wireless keyboards
• Wireless mice
• Wireless game controllers
• Wireless headsets
• Wireless Toys
• Active RFID tags
• Security systems
• Two-way remote keyless entry
• Automobile immobilizers
• Sports and performance monitoring
• Low power two-way telemetry systems
• Wireless modules
©2009 by RF Monolithics, Inc.
Technical support +1.800.704.6079
Page 1 of 33
TRC104 - 08/13/09
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
2 Electrical Characteristics
Absolute Maximum Ratings
SYMBOL PARAMETER
Vcc Supply Voltage
TSTG
Storage Temperature
RFIN
RF Input Level
NOTES
Table 2
MIN MAX
-0.4 +3.6
-55 +125
0
UNITS
V
°C
dBm
Recommended Operating Range
SYMBOL PARAMETER
Vcc Supply Voltage
TOP Operating Temperature
NOTES
Table 3
MIN
+1.9
-40
MAX
+3.6
+85
UNITS
V
°C
2.1 DC Electrical Characteristics
Minimum/maximum values are valid over the recommended operating range Vcc = 1.9-3.6 V. Typical conditions: TO = 25°C; VCC = 3.3 V.
The electrical specifications given below are valid when using an RFM XTL1021 or equivalent crystal.
PARAMETER
Sleep Mode Current
Stop Mode Current
Standby Mode Current
Configuration Mode Current
Receiver Mode Current
Transmitter Mode Current
RSSI Analog Output Level
Digital Input Low Level
Digital Input High Level
Digital Input Current Low
Digital Input Current High
Digital Output Low Level
Digital Output High Level
SYM
ISL
IST
ISB
ICM
IRX
ITX
VIL
VIH
IIL
IIH
VOL
VOH
NOTES
MIN
crystal oscillator running
crystal oscillator running
250 kb/s
1 Mb/s
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Pout = 0 dBm
Pout = -10 dBm
500
-0.4
0.7*Vcc
-
Vcc-0.4
Table 4
TYP
0.4
1.4
22
15
18
19
13
9
1
1
MAX
UNITS
µA
µA
µA
mA
Test Conditions
16 MHz crystal
mA
1500
0.8
Vcc+0.4
0.4
-
mA
mV
V
V
µA
µA
V
V
VIL = 0 V
VIH = Vcc
IOL = -1 mA
IOH = +1 mA
©2009 by RF Monolithics, Inc.
Technical support +1.800.704.6079
Page 5 of 33
TRC104 - 08/13/09
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
maximum recommended value for CL is 20 pF. The required crystal frequency tolerance for the TRC104 is
±30 ppm maximum including temperature and aging drift. A typical ESR for the crystal is 35 ohms, and the
maximum static capacitance is 7 pF. RFM recommends the 16 MHz XTL1021 for use with the TRC104.
3.5 On-chip Regulators
The TRC104 has on-chip regulators used to power the VCO, the digital circuitry, and for biasing of the RF port.
Power pins with a VCC designation are external power inputs to the on-chip regulators. Power pins with a VDD
designation are regulated power outputs that are filtered by external capacitors or are used to power external
TRC104 functions.
3.6 Receiver
As shown in Figure 2, the TRC104 receiver chain starts with a 2.4 GHz differential input LNA, followed by an on-
chip 2.4 GHz band-pass filter. The output of the band-pass filter drives the first mixer, which converts the RF input
to the first IF frequency. The output of the first mixer is applied to the second-conversion I and Q mixers, which
are driven by I and Q LO signals 1/8 the frequency of the first LO. The outputs of the I and Q mixers are
processed by a 5 MHz complex IF filter, which provides both band-pass filtering and Hilbert transform phasing
between the I and Q channels. The phased I and Q channels are summed, nulling the unwanted image response.
The output from the complex IF filter is applied to a limiting IF amplifier, which also generates inter-stage outputs
that drive the RSSI signal summer. The limited output from the IF amplifier drives an FSK detector. The FSK
detector output is applied to a data slicer and then a data and clock recovery circuit. The recovered data and
clock signals are processed by the TRC104 control logic according to the receiver mode of operation.
3.7 RSSI
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The RSSI signal is an indication of received signal strength. A diagram of the RSSI implementation is shown in
Figure 7. Once the RSSI signal is enabled by setting the RSSIA_rfsh bit of register 0x03 to 1, the TRC104 will
begin to detect the strength of incoming signals. The RSSIA pin outputs an analog voltage corresponding to the
strength of the received signal. Once the RSSI sample is complete, the RSSIA_rfsh bit resets to 0. Any reading
of the RSSIA pin or RSSID pin should be taken after the RSSIA_rfsh bit resets to 0.
T R C 1 0 4 R S S I Im p le m e n ta tio n
R S S IA
D IG IT A L
C O M PA R A TO R
R S S ID
RSSI
S um m er
ADC
R S S IT H
R E G IS T E R
IF
F ilte r
IF A m p /L im ite r
FSK
D e te c to r
R S S IV A L
R E G IS T E R
Figure 7
The analog RSSI signal is applied to an ADC to obtain a digital RSSI value, RSSID. The digital value is stored in
the RSSI_val of register 0x04. The RSSI covers two ranges of signal strength, based on the state of the RSSI_G
bit in configuration register 0x04. If RSS_G is 0, the RSSI covers the received signal strength range of -95 to
©2009 by RF Monolithics, Inc.
Technical support +1.800.704.6079
Page 11 of 33
TRC104 - 08/13/09
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
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| PDF Descargar | [ Datasheet TRC104.PDF ] | |
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