DC1858A Analog开发板套件FOR FAE CUSTOMER DEMONSTRATION O

　　demonstration circuit 1858a is a lownoise, lowdistortion sine wave generator designed to be used in conjunction withlineartechnology 16-bitand 18-bitadcdemoboards. functionally, this board uses a wien bridge oscillator that has been level shifted to match the input range of 0v to 5v 16-bit and 18-bitlineartechnologyadcdemoboards. the default oscillator output level is 0.5v to 4.5v. the output frequency is 2khz. the output level and frequency can be adjusted by changing a few resistors and capacitors. for additional frequencies and output levels see tables 1 and 2. for a detailed deion of this oscillator see an132. the dc1858a has 5v and ±12v outputs that can be used to provide power for the adc demo board under test and the dc1216a low jitter clock source if required. the dc1858a combinedwith the dc1216a, an adc demo board and a high speed usb controller (dc718 or dc890) form a complete adc evaluation system when used with ltc’s pscope? software.

　　? 李 进

　　? 深圳博瑞图电子科技有限公司

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