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MAX9257AGTL Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX9257AGTL Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 53 page ����������������������������������������������������������������� Maxim Integrated Products 9 MAX9257A/MAX9258A Fully Programmable Serializer/Deserializer with UART/I2C Control Channel MAX9258A AC ELECTRICAL CHARACTERISTICS (continued) (VCC_ = +3.0V to +3.6V, VCCIO = +1.71V to +3.6V, RL = 50I Q1%, CL = 8pF, differential input voltage |VID| = 0.1V to 1.2V, input common-mode voltage VCM = |VID/2| to VCC - |VID/2|, TA = -40NC to +105NC, unless otherwise noted. Typical values are at VCC_ = +3.3V, |VID| = 0.2V, VCM = 1.2V, TA = +25NC) (Notes 5, 6 and 7) Note 2: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to ground except VTH and VTL. Note 3: Maximum and minimum limits over temperature are guaranteed by design and characterization. Devices are production tested at TA = +105NC. Note 4: One output at a time. Note 5: AC parameters are guaranteed by design and characterization, and are not production tested. Note 6: CL includes probe and test jig capacitance. Note 7: tT is the period of the PCLK_OUT. Note 8: For high-speed mode timing, see the Detailed Description section. Note 9: I2C timing parameters are specified for fast-mode I2C. Max data rate = 400kbps. Typical Operating Characteristics (VCC_ = +3.3V, RL = 50O, CL = 8pF, TA = +25NC, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Data Valid Before PCLK_ OUT tDVB (Figure 11) 0.35 x tT ns Data Valid After PCLK_OUT tDVA (Figure 11) 0.35 x tT ns Serial-to-Parallel Delay tSPD1 Spread off (Figure 14) 8tT ns tSPD2 Q 4% spread 40tT Power-Up Delay tPUD (Figure 12) 100 ns Power-Down to High Impedance tPDD (Figure 13) 100 ns Jitter Tolerance tJT Each half of the UI, 12 bit, SRATE = 840Mbps, PRBS pattern (Figure 15) No spread 0.25 0.30 UI MAX9257A SUPPLY CURRENT vs. FREQUENCY PCLK FREQUENCY (MHz) 20 40 25 35 15 30 10 20 40 60 80 100 120 0 5 45 PRBS PATTERN 18-BIT 100% PREEMPHASIS NO PREEMPHASIS MAX9257A SUPPLY CURRENT vs. FREQUENCY PCLK FREQUENCY (MHz) 55 15 45 60 40 20 80 100 120 140 0 5 75 35 65 25 PRBS PATTERN 10-BIT 100% PREEMPHASIS NO PREEMPHASIS MAX9258A SUPPLY CURRENT vs. FREQUENCY PCLK FREQUENCY (MHz) 40 10 35 15 40 20 60 80 100 120 0 5 45 25 20 30 PRBS PATTERN 18-BIT 4% SPREAD NO SPREAD |
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