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E7725AXF Datasheet(PDF) 2 Page - Semtech Corporation |
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E7725AXF Datasheet(HTML) 2 Page - Semtech Corporation |
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2 / 39 page  2 ©2006 Semtech Corp. , Rev. 9, 8/22/06 TEST AND MEASUREMENT PRODUCTS Edge7725 www.semtech.com PIN Description [0:1] Refers to Channels 0 or 1 Pin # Pin Name Description Control 17, 22 CONFA[0:1] TTL inputs to configure the mode of the channel. 16, 23 CONFB[0:1] TTL inputs to configure the mode of the channel. 21 SEL_DHI TTL input that selects the Differential Drive Mode when a logical high. 18 SEL_CMP TTL input that selects window comparators or differential comparator. Differential comparator is selected when SEL CMP is a logical high. Driver 105, 106; 61, 62 DOUT[0:1] Driver output. 89, 78 DHI[0:1] Flex differential input digital pins which select the driver high or low 90, 77 DHI*[0:1] 91, 76 92, 75 DEN[0:1] DEN*[0:1] Flex differential input pins which control the driver being active or in a high impedance state. 98, 69 96, 71 DVH[0:1] DVL[0:1] High impedance analog voltage inputs which determine the driver high, low, and termination levels. 94, 73 DVT[0:1] 103, 64 RADJ[0:1] Input currents which determine the driver transition, rise and fall times. 102, 65 FADJ[0:1] 86, 81 DBIAS[0:1] Analog current input that sets an internal bias current for the driver. Comparator 128, 39 VINP[0:1] Analog voltage input to the positive input of the A and B comparators. 3, 36 CVA[0:1] Analog inputs which set the A, B, and C comparator thresholds. 2, 37 CVB[0:1] 1, 38 CVC[0:1] 10, 29 VCH[0:1] Voltage clamp high and low inputs. 11, 28 VCL[0:1] 122, 45 QA[0:1] Differential digital outputs of comparators A and B. 121, 46 QA*[0:1] 123, 44 QB[0:1] 124, 43 QB*[0:1] 7, 32 CBIAS[0:1] Analog current input that sets an internal bias current for the comparator. 120, 47 CVC_GND[0:1] Ground sense line for the differential comparator circuit. Connect to ground reference for the CVC[0:1] voltage level generating circuit. |
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