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IDTCSPT857APAI Datasheet(PDF) 4 Page - Integrated Device Technology |
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IDTCSPT857APAI Datasheet(HTML) 4 Page - Integrated Device Technology |
4 / 12 page 4 COMMERCIALANDINDUSTRIALTEMPERATURERANGES IDTCSPT857/A 2.5V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER NOTES: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedance OFF-State X = Don't Care 2. Additional feature that senses when the clock input is less than approximately 20MHz and places the part in sleep mode. Reciever inputs and PLL are turned off and outputs = tristate. FUNCTION TABLE(1) INPUTS OUTPUTS AVDD PWRDWN CLK CLK Y Y FBOUT FBOUT PLL GND H L H L H L H Bypassed/OFF GND H H L H L H L Bypassed/OFF X L L H Z Z Z Z OFF X L H L Z Z Z Z OFF 2.5V(nom) H L H L H L H ON 2.5V(nom) H H L H L H L ON 2.5V(nom)(2) X <20MHz <20MHz Z Z Z Z OFF PIN DESCRIPTION (TSSOP) Pin Name Pin Number Description AGND 17 Ground for 2.5V analog supply AVDD 16 2.5V analog supply CLK, CLK 13,14 Differentialclockinput FBIN, FBIN 35,36 Feedbackdifferentialclockinput FBOUT, FBOUT 32,33 Feedbackdifferentialclockoutput GND 1, 7, 8, 18, 24, 25, 31, 41, 42, 48 Ground PWRDWN 37 Output enable for Y and Y VDDQ 4, 11, 12, 15, 21, 28, 34, 38, 45 2.5V supply Y[0:9] 3, 5, 10, 20, 22, 27, 29, 39, 44, 46 Bufferedoutputofinputclock,CLK Y[0:9] 2, 6, 9, 19, 23, 26, 30, 40, 43, 47 Bufferedoutputofinputclock,CLK PIN DESCRIPTION (VFBGA) Pin Name Pin Number Description AGND H1 Ground for 2.5V analog supply AVDD G2 2.5V analog supply CLK, CLK F1, F2 Differentialclockinput FBIN, FBIN F5, F6 Feedbackdifferentialclockinput FBOUT, FBOUT H6, G5 Feedbackdifferentialclockoutput GND A3, A4, C1, C2, C5, C6, H2, H5, K3, K4 Ground PWRDWN E6 Output enable for Y and Y VDDQ B3, B4, E1, E2, E5, G1, G6, J3, J4 2.5V supply Y[0:9] A1, A6, B2, B5, D1, D6, J2, J5, K1, K6 Bufferedoutputofinputclock,CLK Y[0:9] A2, A5, B1, B6, D2, D5, J1, J6, K2, K5 Bufferedoutputofinputclock,CLK |
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