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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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SM5160CM Datenblatt(PDF) 5 Page - Nippon Precision Circuits Inc |
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SM5160CM Datenblatt(HTML) 5 Page - Nippon Precision Circuits Inc |
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5 / 7 page  NIPPON PRECISION CIRCUITS-5 SM5160CM/DM Lowpass Filter Connection An external lowpass filter connects to DOP or DOA. The output form the filter is fed to a voltage-controlled oscillator (VCO) which generates the PLL output. DOP is intended for use with a passive filter as shown in figure 1. DOA is intended for use with an active filter as shown in figure 2. Figure 1. Passive lowpass filter circuit Figure 2. Active lowpass filter circuit Programmable Frequency Divider The input frequency divider and reference frequency divider ratios can be programmed using the serial data input. Input data consists of 16 data bits, in the order msb to lsb, followed by a control bit, as shown in figure 3 and 4. SM5160CM If the control bit is set to 0, the data is written to the 16-bit latch and then passed to the input frequency divider. If the control bit is set to 1, the 2 lsbs are ignored and the remaining data is written to the 14-bit latch and then passed to the reference frequency divider. Figure 3. Serial data format (SM5160CM) SM5160DM If the control bit is set to 0, the data is written to the 16-bit latch and then passed to the input frequency divider. If the control bit is set to 1, the 2 lsbs and 3msbs are ignored and the remaining data is written to the 11-bit latch and then passed to the reference frequency divider. DOP C R2 R1 VCO VDD DOA RL R1 R2 VDD VCO C 510kΩ FUNCTIONAL DESCRIPTION ignored 16BIT (N- COUNTER DATA) 14BIT (R- COUNTER DATA) 1: R-LATCH 0: N-LATCH ignored ignored 16BIT (N- COUNTER DATA) 11BIT (R- COUNTER DATA) 1: R-LATCH 0: N-LATCH Figure 4. Serial data format (SM5160DM) |
Ähnliche Teilenummer - SM5160CM |
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Ähnliche Beschreibung - SM5160CM |
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