DEMO MANUAL DC1763A LTC2195, LTC2194, LTC2193, LTC2192, LTC2191, LTC2190, LTC2271 16-Bit, 20Msps to 125Msps Dual ADCs Description Demonstration circuit 1763A supports a family of 16-Bit the DC1763A is supplied with the appropriate ADC. The 20Msps to 125Msps ADCs. Each assembly features one circuitry on the analog inputs is optimized for analog input of the following devices: LTC 2195, LTC2194, LTC2193, frequencies from 5MHz to 140MHz. Refer to the data sheet LTC2192, LTC2191, LTC2190, LTC2271 high speed, dual for proper input networks for different input frequencies. ADCs. Design files for this circuit board are available at The versions of the 1763A demo board are listed in Table1. DEMO MANUAL DC1763A q Uick st Art proce DU Demonstration circuit 1763A is easy to set up to evaluate Optional Jumpers: the performance of the LTC2195 A/D converter family. Refer JP5: ILVDS: Selects either 1.75mA or 3.5mA of output to Figure 1 for proper measurement equipment setup and current for the LVDS drivers. (Default: 3.5mA) follow the procedure below: JP15: SHDN: Enables and disables the LTC2195. (De- Setup fault: SHDN) If a DC1371 PStache Data Acquisition and Collection JP2: WP: Enable/Disables write protect for the EEPROM. System was supplied with the DC1763A demonstration (Default: EN) circuit, follow the DC1371 Quick Start Guide to install the JP14/JP8: LANE/TERM: Two bits that select between required software and for connecting the DC1371 to the one, two and four lanes. DC1763A and to a PC. JP14 LANE JP8 TERM NUMBER OF LANES DC1763A Demonstration Circuit Board Jumpers 2 DIS 2 2 EN 4 The DC1763 demonstration circuit board should have 1 DIS 1 the following jumper settings as default positions: (as 1 EN Not Used per Figure 1) (Default: JP8: EN, JP14: 1) JP13: PAR/SER : Selects parallel or serial programming mode. (Default: serial) 3V TO 6V TO PROVIDED POWER SUPPLY ANALOG INPUTS CHANNEL 1 TO PROVIDED USB CABLE CHANNEL 2 dc1763a F01 SINGLE-ENDED PARALLEL/SERIAL ENCODE CLOCK (USE PROVIDED DC1075, DIVIDE BY 4-CLOCK BOARD) Figure 1. Demo Board Setup dc1763afb 2 re