TR-916-SC-P Linx Technologies Inc, TR-916-SC-P Datasheet
TR-916-SC-P
Specifications of TR-916-SC-P
TR-900-SC
TR-916-SC
TR-916-SC
Related parts for TR-916-SC-P
TR-916-SC-P Summary of contents
Page 1
... TX/RX switch, SAW front-end filter, and many other useful features. Fast turnaround times, along with the support for data rates to 33.6Kbps, make the transceiver suitable for a wide range of applications. Housed in a compact through-hole package, the transceiver requires no tuning or external RF ...
Page 2
... Audio Bandwidth Audio Level RSSI DC Output Range RSSI Gain RSSI Dynamic Range ANTENNA PORT Designed for match TIMING Power-on to Valid Receive Power-on to Valid Transmit RX to Valid TX Switching TX to Valid RX Switching POWER SUPPLY Operating Voltage Current Consumption TX Mode RX Mode Sleep Mode ENVIRONMENTAL Operational Temp ...
Page 3
... Time to transmitter or receiver readiness from the application of power to VIN or PDN going high. 12) Time from the TXEN going high and RXEN going low to the transmitter being ready to transmit data. 13) Time from the RXEN going high and TXEN going low to valid receiver data output. ...
Page 4
... Tie to Common Groundplane Recovered Data Output Recovered Analog Output RSSI Logic Low Powers Down PDN N/C RXEN Transmitter Enable Pin TXEN Analog or Digital Content VIN ANT TX/RX Switch Inside Module Open for Maximum TX Power Insert Resistor to Reduce 15dB 20 GND 19 GND 18 GND ...
Page 5
... If the signal is digital, the modulation method becomes FSK. In either case the carrier’s peak deviation is determined by the modulating signal’s amplitude. The receive section of the transceiver is capable of recovering a signal as low as -94dBm (typical). The receiver operates in a single conversion superhet configuration, with 10.7 MHz. A quadrature demodulator is used to recover the baseband analog signal from the carrier ...
Page 6
... The transmitter’s output power is not affected by supply voltage but it can be externally adjusted from approximately -15dBm to 0dBm using the LVLADJ pin. When the LVLADJ pin is open, power is at its max and the transmitter will draw 25mA typically. When LVLADJ is at 0V, power is at its minimum and the transmitter will draw 13mA typically ...
Page 7
... Interference can manifest itself in many ways. Low-level interference will produce noise and hashing on the output and reduce the link’s overall range. Thanks to the capture properties system, the transceiver will still function when an intended signal is present at a higher level than the interference. ...
Page 8
... This will invalidate the timing parameters and may cause illegal emissions from the transceiver. 3. Required transition interval. This is the maximum amount of time that can elapse without a transition on the TX data pin always important to think of data in both the analog and the digital domain. ...
Page 9
... Switch to transmit mode The transceiver is placed in transmit mode by bringing TXEN high and RXEN low. The PDN pin must be open or pulled to VCC. Once the transceiver is placed in transmit mode, the synthesizer will begin trying to lock. 2) Wait for transmitter to stabilize This step is necessary to allow the transmitter time to lock and stabilize ...
Page 10
... The procedure here is protocol-dependent but to illustrate, let’s consider the packet format outlined above being sent to a UART. A UART interprets the start- bit of a byte as a 1-0 transition. When the incoming data is 101010 or hash... it is hard to actually find the start bit. This problem is solved by the UART Sync Byte. ...
Page 11
... The trace from the receiver to the antenna should be kept as short as possible. A simple trace is suitable for runs up to 1/8 inch for antennas with wide bandwidth characteristics. For longer runs or to avoid detuning a high-Q narrow bandwidth antenna such as a helical, use a 50-ohm coax or 50-ohm microstrip transmission line as described in the following section ...
Page 12
... One common form of transmission line is coax cable, another is the microstrip. This term refers to a PCB trace running over a groundplane which is designed to serve as a transmission line between the module and the antenna. The width is based on the desired characteristic impedance, the thickness of the PCB, and its dielectric constant ...
Page 13
... To fully appreciate the importance of an antenna that is both resonant and matched consider that an antenna with a VSWR of 1.5 will effectively transmit approximately 95% of its power while an antenna with a VSWR of 10 will only transmit about 30%. the antenna ...
Page 14
... For this reason the antenna shaft and tip should be positioned as far away from such objects as possible. 2. Optimum performance will be obtained from a 1/4- or 1/2-wave straight whip mounted at a right angle to the groundplane. In many cases this isn’t desirable for practical or ergonomic reasons; thus, an alternative antenna style such as a helical, loop, patch, or base-loaded whip may be utilized ...
Page 15
... To meet this need, Linx offers a wide variety of straight and reduced-height whip-style antennas in permanent and connectorized mounting styles. The wavelength of the operational frequency determines an antenna's overall length ...
Page 16
... Code of Federal Regulations (CFR), Title 47. Title 47 is made up of numerous volumes; however, all regulations applicable to this module are contained in volume 0-19 strongly recommended that a copy be obtained from the Government Printing Office in Washington, or from your local government book store. Excerpts of applicable sections are included with Linx evaluation kits or may be obtained from the Linx Technologies web site (www ...
Page 17
ACHIEVING A SUCCESSFUL RF IMPLEMENTATION Adding wireless capabilities brings an exciting new dimension to any product. It also means that additional effort and commitment will be needed to bring the product successfully to market. By utilizing Linx RF modules the ...
Page 18
Power Conversion Tables For 50 dBm mW -50 0.000 -45 0.000 -40 0.000 -35 0.000 -30 0.001 -25 0.003 -20 0.0l 0 -15 0.032 -10 0.100 -5 0.316 0 1.000 1 1.259 2 1.585 3 1.995 4 2.512 5 3.162 ...
Page 19
... NOTES: Power Transmitted (%) 20.57% 29.21% 36.90% 43.77% 49.88% 55.33% 60.19% 64.52% 68.38% 74.88% 80.05% 84.15% 87.41% 90.00% 96.84% 99.00% 99.68% 0.00 99.90% ...
Page 20
... FAX: (541) 471-6251 http://www.linxtechnologies.com Disclaimer Linx Technologies is continually striving to improve the quality and function of its products; for this reason, we reserve the right to make changes without notice. The information contained in this Data Sheet is believed to be accurate as of the time of publication. Specifications are based on representative lot samples ...