IDTCSPT857 Integrated Device Technology, IDTCSPT857 Datasheet
IDTCSPT857
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IDTCSPT857 Summary of contents
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... The CSPT857 is only available in Industrial Temperature Range (-40°C to +85°C), and CSPT857A is only available in Commercial Temperature Range (0°C to +70°C). See Ordering Information for details. 37/E6 TEST MODE LOGIC 16/ 13/F1 14/F2 PLL 36/F6 35/F5 1 IDTCSPT857 and one differential pair of feedback clock output (FBOUT, [0:9] 3/A1 Y0 2/A2 Y0 5/B2 Y1 6/B1 Y1 10/D1 Y2 9/D2 Y2 ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER PIN CONFIGURATIONS GND V 4 DDQ GND V 3 DDQ BALL VFBGA PAC K AGE LAYOUT COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES PWR GND Y FBIN 7 DWN GND Y V FBIN FBOUT ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER PIN CONFIGURATION 1 GND DDQ GND 7 8 GND DDQ 12 V DDQ 13 CLK 14 CLK V 15 DDQ AGND 17 18 GND DDQ Y 22 ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER PIN DESCRIPTION (TSSOP) Pin Name Pin Number AGND AV DD CLK, CLK 13, 14 FBIN, FBIN 35, 36 FBOUT, FBOUT 32, 33 GND 18, 24, 25, 31, 41, 42, 48 PWRDWN V 4, 11, 12, 15, 21, 28, 34, 38, 45 DDQ 10, 20, 22, 27, 29, 39, 44, 46 ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Commercial 0°C to +70°C; Industrial Symbol Parameter V Input Clamp Voltage (All Inputs Static Input LOW Voltage IL (dc) V Static Input HIGH Voltage ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TIMING REQUIREMENTS Symbol Parameter (1,2) f Operating Clock Frequency CLK (1,3) Application Clock Frequency t Input Clock Duty Cycle DC (4) t Stabilization Time L NOTES: 1. The PLL will track a spread spectrum clock input. 2. Operating clock frequency is the range over which the PLL will lock, but may not meet all timing specifications. ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS V CSPT857 DDQ 60 CSPT857 DDQ COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES 60 60 SS Figure 1. Output Load 14pF V /2 DDQ 14pF V /2 DDQ Figure 2. Output Load Test Circuit ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS Yx, FBOUT Yx, FBOUT CLK CLK FBIN FBIN Yx Yx Yx, FBOUT Yx, FBOUT COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES t t cycle n cycle n jit(cc) cycle n cycle n+1 Figure 3. Cycle-to-Cycle jitter t t (Ø) (Ø) ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES t cycle jit(per) = cycle Figure 6. Period jitter t t half period n+1 half period ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS 80% Clock Inputs and Outputs 20% APPLICATION INFORMATION Clock Structure # of SDRAM Loads per Clock #1 #2 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES t R Figure 8. Input and Output Slew Rates 80 20 Clock Loading on the PLL outputs (pF) Min ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER APPLICATION INFORMATION CLK R = 120 14pF CLK ( 120 14pF Feedback path CLK R = 120 14pF CLK ( 120 14pF Feedback path NOTE: 1. Memory module vendors may need to adjust the feedback capacitive load in order to meet DDR SDRAM registered DIMM timing requirements. ...
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... IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER ORDERING INFORMATION XXXXX XX IDTCSPT Package Device Type CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES X Process Blank 857 857A for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 12 0°C to +70°C (Commercial, A speed only) -40° ...