DEMO MANUAL DC1564A LTC2158-14, LTC2158-12, LTC2157-14, LTC2157-12, LTC2156-14, LTC2156-12, LTC2155-14, LTC2155-12 12-Bit/14-Bit, 170Msps to 310Msps Dual ADCs Description Demonstration circuit 1564A supports a family of the DC1564 is supplied with the appropriate ADC. The 12-/14-bit 170Msps to 310Msps ADCs. Each assembly circuitry on the analog inputs is optimized for analog input features one of the following devices: LTC 2158-14/ frequencies from 5MHz to 140MHz. Refer to the data sheet LTC2158-12, LTC2157-14/LTC2157-12, LTC2156-14/ for proper input networks for different input frequencies. LTC2156-12, LTC2155-14/LTC2155-12, high speed, dual Design files for this circuit board are available at ADCs. DEMO MANUAL DC1564A (T = 25C) A Input Frequency Range See Table 1 SFDR See Applicable Data Sheet SNR See Applicable Data Sheet Quick s tart p D DC1564A Demonstration Circuit Board Jumpers Demonstration circuit 1564A is easy to set up to evaluate the performance of the LTC2157 A/D converter family. Refer The DC1564A demonstration circuit board should have to Figure 1 for proper measurement equipment setup and the following jumper settings as default positions: (as follow the procedure below: per Figure 1) JP1 PAR/SER: Selects Parallel or Serial Programming Setup Mode. (Default: Serial) If a DC1371 Data Acquisition and Collection System was supplied with the DC1564A demonstration circuit, fol- Applying Power and Signals to the DC1564A low the DC1371 Quick Start Guide to install the required Demonstration Circuit software and for connecting the DC1371 to the DC1564A The DC1371 is used to acquire data from the DC1564A, and to a PC. the DC1371 must first be connected to a powered USB port and have 5V applied power before applying 3.6V to 3.6V TO 6V TO PROVIDED POWER SUPPLY PARALLEL/SERIAL ANALOG INPUTS TO PROVIDED USB CABLE CHANNEL 1 CHANNEL 2 SINGLE-ENDED ENCODE CLOCK (USE A LOW JITTER SIGNAL GENERATOR WITH PROPER FILTERING) Figure 1. DC1564A Setup (Zoom for Detail) dc1564afa 2 ure roce summary performance