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CDC421250RGETG4 Datasheet(PDF) 3 Page - Texas Instruments |
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CDC421250RGETG4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 9 page www.ti.com DEVICE SELECTION ABSOLUTE MAXIMUM RATINGS CDC421xxx SLAS540 – APRIL 2007 Table 1. TERMINAL FUNCTIONS (continued) TERMINAL ESD TYPE DESCRIPTION PROTECTION NAME NO. Chip enable (LVCMOS input) CE 1 I Y CE = 1 enables the device and the outputs. CE = 0 disables all current sources (LVPECLP = LVPECLN = Hi-Z). OUTP 10 O Y High-speed positive differential LVPECL output. (Outputs are enabled by CE ) OUTN 7 O Y High-speed negative differential LVPECL output. (Outputs are enabled by CE ) 2–6, 11–15, NC 18–20, 23, I or O Y TI test pin. Do not connect; leave floating. 24 The CDC421xxx device is an LVPECL low-phase-noise clock generator designed to work with a low-frequency AT-crystal oscillator of a single-ended LVCMOS. Table 2. Device Selection Table for CDC421xxx CDC421xxx OUTPUT FREQUENCY FOR INPUT FREQUENCY OR PACKAGE THE SPECIFIED INPUT DEVICE ORDERING CRYSTAL VALUE (MHz) FREQUENCY (MHz) MARKING PART NUMBER 421100 CDC421100RGER QFN-24 tape and reel 33.3333 100.00 421100 CDC421100RGET QFN-24 small tape and reel 33.3333 100.00 421106 CDC421106RGER QFN-24 tape and reel 35.4167 106.25 421106 CDC421106RGET QFN-24 small tape and reel 35.4167 106.25 421125 CDC421125RGER QFN-24 tape and reel 31.2500 125.00 421125 CDC421125RGET QFN-24 small tape and reel 31.2500 125.00 421156 CDC421156RGER QFN-24 tape and reel 31.2500 156.25 421156 CDC421156RGET QFN-24 small tape and reel 31.2500 156.25 421212 CDC421212RGER QFN-24 tape and reel 35.4167 212.50 421212 CDC421212RGET QFN-24 small tape and reel 35.4167 212.50 421250 CDC421250RGER QFN-24 tape and reel 31.2500 250.00 421250 CDC421250RGET QFN-24 small tape and reel 31.2500 250.00 421312 CDC421312RGER QFN-24 tape and reel 31.2500 312.50 421312 CDC421312RGET QFN-24 small tape and reel 31.2500 312.50 over operating free-air temperature range (unless otherwise noted)(1) VALUE UNIT VCC Supply voltage(2) –0.5 to 4.6 V VI Voltage range for all other input pins(2) –0.5 to VCC + 0.5 V IO Output current for LVPECL –50 mA Electrostatic discharge (HBM) 2 k V TA Characterized free-air temperature range (no airflow) –40 to 85 °C TJ Maximum junction temperature 125 °C Tstg Storage temperature range –65 to 150 °C (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum rated conditions for extended periods may affect device reliability. (2) All voltage values are with respect to network ground terminal. 3 Submit Documentation Feedback |
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