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AZT70 bảng dữ liệu(PDF) 4 Page - Arizona Microtek, Inc |
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AZT70 bảng dữ liệu(HTML) 4 Page - Arizona Microtek, Inc |
4 / 12 page Arizona Microtek, Inc. AZT70 Programmable Capacitive Tuning IC www.azmicrotek.com +1-480-962-5881 4 Request a Sample May 2012, Rev 1.2 AZT70 FUNCTIONAL MODES The AZT70 is designed to be used in 2 functional modes, Programming and Operational. In the Programming mode, the AZT70 is used by the manufacturer to set the capacitance value to control the desired center frequency of the oscillator. The programming mode uses either the shift registers or EEPROM (detailed later) and gives the manufacturer access to pins DA, CLK, and PV which allow the AZT70 to be programmed with an accompanying programming board (Figure 3). Arizona Microtek can provide this board (AZPB70) along with software that works through all the programming steps/functions described in the next sections. In the Operational mode, the EEPROM internal to the AZT70 has already been programmed with the desired factory settings. Pins DA, CLK, and PV are to be disconnected, thereby allowing the AZT70’s internal pull-downs to place the pins at ground potential. In the operational mode, only 3 pins are necessary for hookup (Figure 4). AZT70 Programming Board (PRT70) X1 DA CLK PV DA CLK PV VSS VDD RESONATOR OUT OSCILLATOR Figure 3 – AZT70 in Programming Mode AZT70 X1 DA CLK PV VSS VDD RESONATOR OUT OSCILLATOR NC NC NC Figure 4 – AZT70 in Operational Mode |
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Mô tả tương tự - AZT70 |
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