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XRK39351 Datasheet(PDF) 4 Page - Exar Corporation |
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XRK39351 Datasheet(HTML) 4 Page - Exar Corporation |
4 / 12 page XRK39351 xr 3.3V OR 2.5V, 9-OUTPUT PLL CLOCK DRIVER REV. 1.0.0 4 a. VCMR is the cross point of the differential input signal. TABLE 1: CONTROL INPUT FUNCTION TABLE PIN NAME 01 DEFAULT REF_SEL PECL clock inputs selected as reference TCLK input selected as reference 0 PLL_EN PLL is bypassed. Test Mode. TCLK refer- ence source drives the divider select blocks PLL enabled. Normal operation. VCO out- put drives the divider select blocks 1 SELA Bank A divider = 2 Bank A divider = 4 0 SELB Bank B divider = 4 Bank B divider = 8 0 SELC Bank C divider = 4 Bank C divider = 8 0 SELD Bank D divider = 4 Bank D divider = 8 0 OE Outputs enabled Outputs tri-stated, VCO running at minimum frequency 0 DC CHARACTERISTICS (VCC= 3.3 + 5%, TA= -40°C TO +85°C) SYMBOL CHARACTERISTICS MIN TYP MAX UNIT CONDITION VCMR a PECL Clock inputs common mode range 1.2 VCC-0.9 V VPP PECL Clock peak-to-peak input voltage 500 1000 mV VIH Input voltage high 2.0 VCC+0.3 V VIL Input voltage low 0.8 V VOH Output High Voltagea 2.4 V IOH=-24mA VOL Output Low Voltagea 0.55 0.30 V V IOL=24mA IOL=12mA ZOUT Output Impedance 14-17 Ω IIN Input leakage current +150 μΑ VIN =VCC or VIN =GND ICC_PLL Maximum PLL supply current 3.0 5.0 mA AVCC pin ICC Maximum Quiescent supply current 4 mA All VCCQX pins VTT Output Termination Voltage VCC÷2 V |
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