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TR8000 Datasheet(PDF) 8 Page - Murata Manufacturing Co., Ltd. |
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TR8000 Datasheet(HTML) 8 Page - Murata Manufacturing Co., Ltd. |
8 / 15 page RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 8 of 15 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com ©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. TR8000-10182007 LOSyn Bit 7 - This bit is only used in product testing. It should always be set to 0 for normal operation. The power-on default value of this bit is 0. LOSyn Bits 6, 5, 4, 3, 2, 1, 0 -These bits have no function in the TR8100 and can be written as either a logic 1 or a logic 0. Note that data to/from the configuration registers is clocked in/out most significant bit first (MSB). See the Control Register Read/Write Detail and Control Register Read/Write Timing Drawings for additional details. Receiver Turn-On Timing The maximum time tPR required for the receive function to become operational at turn-on is influenced by two factors. All receiver circuitry will be operational 1 ms after the supply voltage reaches 2.2 Vdc. The BBOUT-CMPIN coupling-capacitor is then DC stabilized in 4 time con- stants (4*tBBC). The total turn-on time to stable receiver operation for a 10 ms power supply rise time is: tPR =15 ms +4*tBBC Receiver Wake-Up Timing The maximum transition time tSR from the sleep mode to the receive mode is 4*tBBC, where tBBC is the BBOUT-CMPIN coupling-capacitor time constant. When the operating temperature is limited to 60°C, the time required to switch from sleep to receive is dramatically less for short sleep times, as less charge leaks away from the BBOUT-CMPIN coupling capacitor. AGC Timing The maximum AGC engage time tAGC is 5 µs after the reception of a -30 dBm RF signal with a 1 µsenvelope rise time. Peak Detector Timing The Peak Detector attack time constant is set by the value of the capacitor at the PKDET pin. The attack time tPKA =CPKD/4167, where tPKA is in µs and CPKD is in pF. The Peak Detector decay time constant tPKD = 1000*tPKA. Data Rate (b/s) CFG1 Bits 3-0 1200 0000 2400 0001 4800 0010 9600 0011 19200 0100 38400 0101 57600 0110 115200 0111 230400 1000 |
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Similar Description - TR8000 |
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