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November 2006 ASM3P2780A rev 1.6 Low Power Peak EMI Reducing Solution 2 of 12 Notice: The information in this document is subject to change without notice. Pin Configuration (6-pin TSOT- 23 Package) Pin Description Pin# Pin Name Type Description 1 PD I Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not used. 2 XOUT O Crystal connection. If using an external reference, this pin must be left unconnected. 3 XIN / CLKIN I Crystal connection or external reference frequency input. This pin has dual functions. It can be connected either to an external crystal or an external reference clock. 4 VDD P Power supply for the entire chip. 5 ModOUT O Spread spectrum clock output. 6 VSS P Ground connection. Pin Configuration (8-pin SOIC and TSSOP Packages) Pin Description Pin# Pin Name Type Description 1 XIN/CLKIN I Crystal connection or external reference frequency input. This pin has dual functions. It can be connected either to an external crystal or an external reference clock. 2 XOUT O Crystal connection. If using an external reference, this pin must be left unconnected. 3 PD I Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not used. 4 NC - No connect. 5 VSS P Ground connection. 6 ModOUT O Spread spectrum clock output. 7 NC - No connect. 8 VDD P Power supply for the entire chip. XOUT 1 2 3 4 5 6 ASM3P2780A PD XIN / CLKIN VDD ModOUT VSS VSS ModOUT XIN / CLKIN NC XOUT 1 2 3 4 5 6 7 8 ASM3P2780A PD NC VDD |
