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CDC950 Fiches technique(PDF) 6 Page - Texas Instruments |
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CDC950 Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 16 page CDC950 133MHz DIFFERENTIAL CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS/SERVERS SCAS646B − FEBRUARY 2001 − REVISED OCTOBER 2003 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR† ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING DGG 1400 mW 11.2 mW/ °C 900 mW 730 mW † This is the inverse of the traditional junction-to-case thermal resistance (RθJA) and uses a board-mounted device at 89 °C/W recommended operating conditions (see Note 4) MIN NOM‡ MAX UNIT Supply voltages, VDD, AVDD 3.135 3.3 3.465 High-level input voltage, VIH 2 V Low-level input voltage, VIL 0.8 V Input voltage, VI −0.3 VDD + 0.3 HCLK/HCLK −40 High-level output current, IOH CLK33 −18 High-level output current, IOH 3V48/SelA and 3V48/SelB −14 REFCLK −14 mA HCLK/HCLK 0 mA Low-level output current, IOL CLK33 12 Low-level output current, IOL 3V48/SelA and 3V48/SelB 9 REFCLK 9 Reference frequency, f(XIN)§ Test mode 14 MHz Crystal, f(XTAL)¶ Normal mode 13.8 14.318 14.8 MHz Operating free-air temperature, TA 0 85 °C ‡ All nominal values are measured at their respective nominal VDD values. § Reference frequency is a test clock driven on the XIN input during the device test mode or normal mode. In test mode, XIN can be driven externally up to f(XIN) = 16 MHz. If XIN is driven externally, XOUT is floating. ¶ This is a series fundamental crystal with fo = 14.31818 MHz NOTE 4: Unused inputs must be held high or low to prevent them from floating. |
Numéro de pièce similaire - CDC950 |
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Description similaire - CDC950 |
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