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ASM3P2183AF-08TT Datasheet(PDF) 2 Page - PulseCore Semiconductor |
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ASM3P2183AF-08TT Datasheet(HTML) 2 Page - PulseCore Semiconductor |
2 / 8 page March 2007 ASM3P2183A rev 1.7 EMI Reduction IC 2 of 8 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 frequency input. This pin has dual functions. It can be connected to either an external crystal or an external reference clock. 2 XOUT I Crystal connection. Input connection for an external crystal. If using an external reference, this pin must be left unconnected. 3 VSS P Ground to entire chip. 4 SS% I Spread range select. Digital logic input used to select frequency deviation (Refer Spread Deviation Selection Table). This pin has an internal pull-up resistor. 5 ModOUT O Spread spectrum low EMI output. 6 VDD P Power supply for the entire chip. 7 FS0 I Frequency range select. Digital logic input used to select frequency range (Refer Input Frequency and Modulation Rate Table). This pin has an internal pull-up resistor. 8 FS1 I Frequency range select. Digital logic input used to select frequency range (Refer Input Frequency and Modulation Rate Table). This pin has an internal pull-up resistor. VSS XIN /CLKIN Crystal Oscillator Frequency Divider Feedback Divider Modulation Phase Detector Loop Filter VCO Output Divider ModOUT PLL VDD SS% FS0 FS1 XOUT 1 2 3 4 5 6 7 8 VDD FS1 ModOUT XIN / CLKIN XOUT VSS SS% FS0 ASM3P2183A |
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