ASCELL3911 AMSCO [austriamicrosystems AG], ASCELL3911 Datasheet
ASCELL3911
Related parts for ASCELL3911
ASCELL3911 Summary of contents
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... ASCell3911 ISM 868 MHz, 433 MHz and 315 MHz FSK Transmitter Preliminary Data Sheet ...
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... Typically only 1 XTAL, 4 capacitors and 2 inductors externally required The ASCell3911 is a low power, triple ISM band (868 / 433 / 315 MHz), single channel FSK transmitter designed to work in a remote control link together with the SC3912 receiver system cell ...
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... The ASCell3911 consists at the RF side of a reference XTAL oscillator, a single channel RF- synthesizer, an I/Q based direct conversion FSK modulator, a driving amplifier. On the digital side the pulse interference resistant protocol encoder and a µC interface, including microproc- essor clock divider and a sophisticated power up/down circuitry are implemented ...
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... The synchronization packet is simple 0101- sequence of 252 bit. Transmission Protocol SYNC 0-1-Sequence Figure 2: Transmission protocol of the ASCell3911. Rev. A, February 2000 is generated by dividing the XTAL frequency F CLK XOSC Data Packet SYNC 0-1-Sequence 0 15 Word Pattern in Data Packet W ...
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... Interface and Power Management The ASCell3911 contains a direct interface to a micro controller ( C). The µC interface of the ASCell3911 consists of the following five pins: ”Transmit data input” (DATA). ...
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... Z state) and pulled ”H” or ”L” by the internal pull-up device or by the µC via a resistor. These weak states can be overridden by the ASCell3911 if the respective outputs are enabled. Whenever a line is pulled via an ex- ternal resistor, however, this should override the internal pull-up devices of the ASCell3911. ...
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... After a delay of 32 µC clock cycles the WAKEUP pin of the ASCell3911 is set to ”H” for 16 clock cycles. The transmitter is now in active mode. The WAKEUP acts in ASCell3911 active mode as an input waiting for a ” ...
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... P4 (not end of transmit) to ”L” and pulls the WAKEUP line to ”L”. Sensing this, 4 clock cycles later the ASCell3911 will switch the µC back to standby mode, disabling the µC_CLK output, setting the active WAKEUP pin to ”L”. The AS- Cell3911 will finish the transmission sequence and than turning off the XTAL oscillator to and goes back to the standby mode too. The SMT/CMT bit is ” ...
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... ISM 868 MHz, 433 MHz and 315 MHz FSK Transmitter – Preliminary Data Sheet ASCell3911 2.2 Operating Conditions Symbol Parameter VDD Positive supply voltage GND Negative supply voltage TA Operating temperature ICC Current consumption ICC Standby current SD Rev. A, February 2000 Conditions / Notes VCC= 3,5 V ...
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... ISM 868 MHz, 433 MHz and 315 MHz FSK Transmitter – Preliminary Data Sheet ASCell3911 2.3 FSK Operation °C, VDD, VSYN = 2,7 V, unless specified otherwise. Device functional for TA= -40 to +85 °C. Symbol Parameter F Carrier frequency C F FSK frequency devi ation 315,000 MHz: ...
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... ISM 868 MHz, 433 MHz and 315 MHz FSK Transmitter – Preliminary Data Sheet ASCell3911 DATA(serial data input), D_EN (serial data enable input), D_CLK (serial data clock input) VIH High level input voltage VIL Low level input voltage IIH High level input current ...
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... PAGND RF+ f =868.300 MHz R F RF- Driving Amplifier. Implementation Example RF_LO = VDDSYN Figure 6: Basic application schematic of the ASCell3911. Rev. A, February 2000 kHz DRA QUC 2*BBF SCG Quadrature Baseband Sin / Cos Up Converter Filters Generator 0 ° ...
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... ISM 868 MHz, 433 MHz and 315 MHz FSK Transmitter – Preliminary Data Sheet ASCell3911 Figure 7: Physical dimensions of TSSOP-14. Symbol Minimal (mm/mil 0,05/0,002 b 0,19/0,0075 6,25/0,246 E1 4,30/0,169 L 0,50/0,020 ASCell's are functional and in-spec circuits, which are usually available as samples with documentation and demoboard. How - ever they are intentionally to be used as a basis for ASIC derivatives ...