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SY55857L Datasheet(PDF) 2 Page - Micrel Semiconductor |
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SY55857L Datasheet(HTML) 2 Page - Micrel Semiconductor |
2 / 8 page 2 Precision Edge® SY89327L Micrel, Inc. M9999-072005 hbwhelp@micrel.com or (408) 955-1690 PACKAGE/ORDERING INFORMATION Pin Number Pin Name Pin Function 2, 3 IN, /IN Differential inputs: This input is the differential signal input to the device. This input accepts AC- or DC-coupled signals as small as 100mV. External termination is required. Please refer to the “Input Interface Applications” section for more details. 8 VCC Positive power supply. Bypass with 0.1 µF0.01µF low ESR capacitors. 7, 6 Q, /Q Differential LVPECL Output: Terminate with 50 Ω to V CC–2V. See “Output Interface Applications” section. Output pair is 100k temperature compensated LVPECL compatible. 5 GND, Ground: Ground pin and exposed pad must be connected to the same ground plane. Exposed Pad 1, 4 NC No connect. PIN DESCRIPTION NC IN /IN NC VCC Q /Q GND 1 2 3 4 8 7 6 5 8-Lead MLF™ FUNCTIONAL DESCRIPTION Establishing Static Logic Inputs Do not leave unused inputs floating. Tie either the true or complement input to ground. A logic zero is achieved by connecting the complement input to ground with the true input floating. For a TTL input, tie a 2.5k Ω resistor between the complement input and ground. See “Input Interface” section. Input Levels LVDS, CML, and HSTL differential signals may be connected directly to the D inputs. Depending on the actual worst case voltage seen, the SY8327L's performance varies as per the following table: Input Voltage Minimum Maximum Range Voltage Swing Translation Speed 0 to 2.4V 100mV 2.5Gbps 0 to V CC +0.3V 200mV 1.25Gbps For LVDS applications, only point-to-point interfaces are supported. Due to the current required by the input structure shown in Figure 1, multi-drop and multi-point architectures are not supported. R2 1.5k Ω R2 1.5k Ω R1 1.05k Ω R1 1.05k Ω GND DIN /DIN VCC Figure 1. Simplified Input Structure Ordering Information Package Operating Package Lead Part Number Type Range Marking Finish SY89327LMITR MLF-8 Industrial 327 Sn-Pb SY89325LMGTR MLF-8 Industrial 327 with Pb-Free Pb-Free bar-line indicator NiPdAu |
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