PI6C49X0201 1-To-1 Differential-to-LVCMOS/LVTTL Translator Features Description ÎÎOne LVCMOS/LVTTL output ÎÎCLK/nCLK pair can accept the following differential input The PI6C49X0201 is a 1-to-1 Differential-to-LVCMOS/LVTTL Translator High Performance Buffer. The differential input is highly flexible and can accept LVPECL, LVDS, LVHSTL, SSTL, and HCSL. The small 8-lead SOIC footprint makes this device ideal for use in applications with limited board space. Block Diagram Pin Assignment ÎÎDifferential CLK/nCLK input pair levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL ÎÎOutput frequency: 360MHz ÎÎPart-to-part skew: 500ps (maximum) ÎÎAdditive phase jitter, RMS: 0.09ps (typical), 3.3V output ÎÎFull 3.3V and 2.5V operating supply ÎÎ-40°C to 85°C ambient operating temperature CLK nCLK Pulldown Pullup 13-0112 Q0 1 nc 1 8 VDD CLK 2 7 Q0 nCLK 3 6 nc nc 4 5 GND www.pericom.com PI6C49X0201 Rev A 07/16/13 PI6C49X0201 1-TO-1 Differential- To-LVCMOS/LVTTL Translator Pin Descriptions Pin# Pin Name Pin Type Pin Description 1, 4, 6 nc Unused No connect. 2 CLK Input Pulldown Non-inverting differential clock input. 3 nCLK Input Pullup Inverting differential clock input. 5 GND Power Power supply ground. 7 Q0 Output Single-ended clock output. LVCMOS/LVTTL interface levels. 8 VDD Power Positive supply pin. Note: Pullup and Pulldown refer to internal input resistors. Pin Characteristics Symbol Parameter CIN Input Capacitance 4 pF R PULLUP Input Pullup Resistor 51 kΩ R PULLDOWN Input Pulldown Resistor 51 kΩ CPD Power Dissipation Capacitance 23 pF ROUT Output Impedance 13-0112 Test Conditions Min. VDD = 3.6V 5 2 Typical 7 Max. 13 www.pericom.com PI6C49X0201 Rev A Units Ω 07/16/13 PI6C49X0201 1-TO-1 Differential- To-LVCMOS/LVTTL Translator Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) Note: Output, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to VDD +0.5V Package Thermal Impedance, θJA . . . . . . . . . . . . . . 103°C/W (0 lfpm) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond those listed in the DC Characteristics or AC Characteristics Storage Temperature, TSTG . . . . . . . . . . . . . . . . . . . . . . -65°C to 150°C ESD Protection (Input) . . . . . . . . . . . . . . . . . . . . 2000V min (HBM) is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6V Inputs, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to VDD +0.5V DC Electrical Characteristics Power Supply DC Characteristics, VDD = 3.3V ± 0.3V or 2.5V ± 5%, TA = -40°C to 85°C Symbol Parameter Conditions VDD Positive Supply Voltage IDD Power Supply Current Min. Typ. Max. Units 3.0 3.3 3.6 V 2.375 2.5 2.625 V 25MHz, unloaded 25 mA 250MHz, unloaded 35 mA Max. Units LVCMOS / LVTTL DC Characteristics, VDD = 3.3V ± 0.3V or 2.5V ± 5%, TA = -40°C to 85°C Symbol Parameter VOH Output High Voltage; NOTE 1 VOL Output Low Voltage; NOTE 1 NOTE 1: Outputs terminated with 50Ω to VDD/2. Conditions Min. Typ. VDD = 3.6V 2.6 3.6 V VDD = 2.625V 1.8 2.625 V 0.5 V VDD = 3.6V or 2.625V Differential DC Characteristics, VDD = 3.3V ± 0.3V or 2.5V ± 5%, TA = -40°C to 85°C Symbol Parameter Conditions Min. Typ. Max. Units IIH Input High Current IIL Input Low Current VPP Peak-to-Peak Input Voltage 0.15 1.3 V VCRM Common Mode Input Voltage; NOTE 1, 2 GND + 0.5 VDD – 0.85 V nCLK VIN = VDD = 3.6V or 2.625V 5 μA CLK VIN = VDD = 3.6V or 2.625V 150 μA nCLK VIN = 0V, VDD = 3.6V or 2.625V -150 μA CLK VIN = 0V, VDD = 3.6V or 2.625V -5 μA NOTE 1: For single ended applications, the maximum input voltage for CLK, nCLK is VDD + 0.3V. NOTE 2: Common mode voltage is defined as (VIH + VIL)/2. 13-0112 3 www.pericom.com PI6C49X0201 Rev A 07/16/13 PI6C49X0201 1-TO-1 Differential- To-LVCMOS/LVTTL Translator AC Electrical Characteristics AC Characteristics, VDD = 3.3V ± 0.3V, TA = -40°C to 85°C Symbol Parameter fMAX Output Frequency tPD Propagation Delay, NOTE 1 tsk(pp) Part-to-Part Skew; NOTE 2, 3 tjit Buffer Additive Phase Jitter, RMS tR/tF Output Rise/Fall Time odc Output Duty Cycle Conditions Min. Typ. 4 ƒ ≤ 350MHz 1.6 1.8 156.25MHz, Integration Range (12kHz – 20MHz) 0.09 125MHz, Integration Range (12kHz – 20MHz) 0.15 Max. Units 360 MHz 2.0 ns 500 ps ps 0.8V to 2V 80 250 350 ps ƒ ≤ 166MHz 45 50 55 % 166MHz < ƒ ≤ 350MHz 40 50 60 % NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range. The device will meet specifications after thermal equilibrium has been reached under these conditions. All parameters measured at f MAX unless noted otherwise. NOTE 1: Measured from the differential input crossing point to the output at VDD/2. NOTE 2: Defined as skew between outputs on different devices operating at the same supply voltage and with equal load conditions. Using the same type of inputs on each device, the outputs are measured at VDD/2. AC Characteristics, VDD = 2.5V ± 5%, TA = -40°C to 85°C Symbol Parameter fMAX Output Frequency tPD Propagation Delay, NOTE 1 tsk(pp) Part-to-Part Skew; NOTE 2 tjit Buffer Additive Phase Jitter, RMS tR/tF Output Rise/Fall Time odc Output Duty Cycle Conditions Min. Typ. 4 ƒ ≤ 350MHz 1.9 2.2 156.25MHz, Integration Range (12kHz – 20MHz) 0.04 125MHz, Integration Range (12kHz – 20MHz) 0.14 Max. Units 360 MHz 2.5 ns 500 ps ps 20% to 80% 180 ƒ ≤ 250MHz 45 250MHz < ƒ ≤ 350MHz 40 350 ps 50 55 % 50 60 % NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range. The device will meet specifications after thermal equilibrium has been reached under these conditions. All parameters measured at f MAX unless noted otherwise. NOTE 1: Measured from the differential input crossing point to the output at VDD/2. NOTE 2: Defined as skew between outputs on different devices operating at the same supply voltage and with equal load conditions. Using the same type of inputs on each device, the outputs are measured at VDD/2. 13-0112 4 www.pericom.com PI6C49X0201 Rev A 07/16/13 PI6C49X0201 1-TO-1 Differential- To-LVCMOS/LVTTL Translator Application Information Wiring the differential input to accept single ended levels Figure 1 shows how the differential input can be wired to accept single ended levels. The reference voltage V_REF = VDD/2 is generated by the bias resistors R1, R2 and C1. This bias circuit should be located as close as possible to the input pin. The ratio of R1 and R2 might need to be adjusted to postion the V_REF in the center of the input voltage swing. For example, if the input clock swing is only 2.5V and VDD = 3.3V, V_REF should be 1.25V and R1/R2 = 0.609. VDD Single Ended Clock Input R1 1K CLK nCLK C1 0.1µ R2 1K Figure 1. Single-ended input to Differential input device Thermal Information Symbol Description ΘJA Junction-to-ambient thermal resistance ΘJC Junction-to-case thermal resistance 13-0112 Condition Still air 157 °C/W 42 °C/W 5 www.pericom.com PI6C49X0201 Rev A 07/16/13 PI6C49X0201 1-TO-1 Differential- To-LVCMOS/LVTTL Translator DOCUMENT CONTROL NO. 8 PD - 1001 REVISION: F .149 .157 DATE: 03/09/05 3.78 3.99 0.25 x 45˚ 0.50 .0099 .0196 1 .189 .196 4.80 5.00 .0075 .0098 0-8˚ 0.19 0.25 0.40 .016 1.27 .050 1 .016 .026 0.406 0.660 .2284 .2440 5.80 6.20 1.35 1.75 .053 .068 SEATING PLANE REF .050 BSC 1.27 .0040 0.10 .0098 0.25 .013 0.330 .020 0.508 Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Notes: 1) Controlling dimensions in millimeters. 2) Ref: JEDEC MS-012D/AA DESCRIPTION: 8-Pin, 150-Mil Wide, SOIC PACKAGE CODE: W Note: • For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php Ordering Information(1-3) Ordering Code Package Code PI6C49X0201WIE W Package Description 8-pin, Pb-free & Green, SOIC Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. E = Pb-free and Green 3. Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 13-0112 All trademarks are property of their respective owners. 6 www.pericom.com PI6C49X0201 Rev A 07/16/13