Test of E906 PreAmp Prototype Da-Shung Su, Su-Yin Wang, Ting-Hua Chang, Wen-Chen Chang 2010/01/28
Block Diagram
Stage A
Stage B
Reference Voltage
Cadence® Allegro® PCB ESD protectionStage AStage BComparatorDC/DC converter E906 PAD card PCB layout design, Rev 1.0
Dimension 4.6 cm 10 cm 1 cm 16 cm
Test of PreAmp Card (one-channel only) signal input DC Power supply ECL output from comparator
Input Signal from Function Generator
Test Platform
Amplified (Small) Signal at Stage A Input signal Amplified signal ECL differential output Injection charge =2.5 A Gain=30mV/2.5 A =12k
Amplified (Small) Signal at Stage A Input signal Amplified signal ECL differential output Injection charge =2.5 A Gain=30mV/2.5 A =12k
Amplified (Small) Signal at Stage B Input signal Amplified signal ECL differential output Injection charge =2.5 A Gain=200mV/2.5 A*2 =160k
Amplified (Small) Signal at Stage B Input signal Amplified signal ECL differential output Injection charge =2.5 A Gain=200mV/2.5 A*2 =160k
Amplified (Large) Signal at Stage B Input signal Amplified signal ECL differential output Injection charge =7.5 A Gain=700mV/7.5 A*2 =180k Undershoot is intrinsic in the input signal. A quick baseline return within 30ns.
Detection Efficiency for Small Signal Comparator Output Triggered by 2.4 MHz signal from function generator. Accumulated over 1 minute.
Uniform Performance for Differential ECL Output from Comparator