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ASM3I2814AF-08TT Datasheet(PDF) 2 Page - PulseCore Semiconductor |
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ASM3I2814AF-08TT Datasheet(HTML) 2 Page - PulseCore Semiconductor |
2 / 11 page ASM3P2811A/B ASM3P2812A/B April 2008 ASM3P2814A/B rev 1.6 Low Power EMI Reduction IC 2 of 11 Notice: The information in this document is subject to change without notice. Block Diagram Pin Configuration Pin Description Pin# Pin Name Type Description 1 XIN / CLKIN I Crystal connection or external Clock input. 2 VSS P Ground to entire chip. 3 D_C I Digital logic input used to select Down (LOW) or Center (HIGH) spread options. (Refer Frequency Deviation and Spread Selection Table). This pin has an internal pull-up resistor. 4 SRS I Spread range select. Digital logic input used to select frequency deviation (Refer Frequency Deviation and Spread Selection Table). This pin has an internal pull-up resistor. 5 ModOUT O Spread spectrum clock output 6 FRS I Frequency range select. Digital logic input used to select Input frequency range (Refer Input/Output Frequency Range Selection Table). This pin has an internal pull-up resistor. 7 VDD P Power supply for the entire chip. 8 XOUT O Crystal connection. If using an external reference, this pin must be left unconnected. XIN /CLKIN Crystal Oscillator Frequency Divider Feedback Divide Modulation Phase Detector Loop Filter VCO Output Divider ModOUT PLL VDD D_C SRS FRS XOUT VSS ModOUT 1 2 3 4 5 6 7 8 FRS XOUT XIN / CLKIN VSS D_C SRS VDD ASM3P2811A/B ASM3P2812A/B ASM3P2814A/B |
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