PLL701-13

m PLL701-13 o c . Low EMI Spread Spectrum Multiplier Clock U 4 t e FEATURES PIN CONFIGURATION e h Clock Generator with selectable Spread Spectrum S multiplier from ta 1x to 4x outputs. Outputa frequency ranges: 24MHz to 240MHz. Selectable .D Down Spread Modulation. TTL/CMOS compatible outputs. w 3.3V Operating Voltage. w Low short term jitter. w Available in 8-Pin 150mil SOIC. FIN 1 2 3 4 8 7 6 5 VDD S3v PLL701-13 S2^ S1^ FOUT GND DESCRIPTIONS The PLL701-13 is a Spread Spectrum Clock Generator designed for the purpose of reducing EMI in high-speed digital systems. The selectable Down Spread modulation amplitude (see table below) permits EMI reduction without over-clocking the output. Any output frequency can be selected by programming 4 multiplier modes. The device operates over a very wide range of input frequencies and provides 1x to 4x modulated clock outputs. OUTPUT CLOCK (FOUT) SELECTION S3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 S2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 S1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 S0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 m o .c U 4 t e e h S a t a .D w w w FIN = 24 ~ 120 Mhz S0v Note: v: 30k Ω Internal Pull down ^: 30k Ω Internal Pull up. FIN Range (MHz) 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 24 - 60 60 - 120 60 - 120 60 - 120 60 - 120 FOUT X1 X1 X1 X1 X2 X2 X2 X2 X2 X2 X4 X4 X1 X1 X1 X1 Spread Spectrum Modulation Frequency Magnitude -1.5% -2.0% -2.5% -3.0% -0.5% -1.0% -1.5% -2.0% Fin / 256 -2....