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TS3002ITD822 数据表(PDF) 9 Page - Silicon Laboratories |
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TS3002ITD822 数据表(HTML) 9 Page - Silicon Laboratories |
9 / 13 page TS3002 TS3002 Rev. 1.0 Page 9 BLOCK DIAGRAM THEORY OF OPERATION The TS3002 is a user-programmable oscillator where the period of the square wave at its FOUT terminal is generated by an external resistor and capacitor pair. The output frequency is given by: FOUT (kHz) = 1 tFOUT (µs) 1E6 k ∙ R SET MΩ x CSET(pF) where the scalar k is approximately 1.19. With an RSET = 4.32M Ω and a CSET = 7.9pF, the output frequency is approximately 25kHz with a 50% duty cycle. As design aids, Tables 1 lists TS3002’s typical FOUT for various standard values for RSET with CSET = 7.9pF and Table 2 lists typical FOUT for various standard values for CSET with RSET = 4.32M Ω. The TS3002 also provides a separate PWM output Table 1: FOUT vs RSET, CSET = 7.9pF RSET (M Ω) FOUT (kHz) 1 106 2.49 43 4.32 25 6.81 16 9.76 11 Table 2: FOUT vs CSET, RSET = 4.32M Ω CSET (pF) FOUT (kHz) 5 39 7.9 25 10 19 15 13 20 10 |
类似零件编号 - TS3002ITD822 |
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类似说明 - TS3002ITD822 |
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