805A Description Table 1. DC1805A Assembly Options ASSEMBLY VERSION PART NUMBER MAX CONVERSION RATE NUMBER OF BITS MAX CLK IN FREQUENCY DC1805A-A LTC2380CMS-16 2Msps 16 100MHz DC1805A-B LTC2378CMS-16 1Msps 16 50MHz DC1805A-C LTC2377CMS-16 500ksps 16 25MHz DC1805A-D LTC2376CMS-16 250ksps 16 12.5MHz DC1805A-E LTC2379CMS-18 1.6Msps 18 99.2MHz DC1805A-F LTC2378CMS-18 1Msps 18 62MHz DC1805A-G LTC2377CMS-18 500ksps 18 31MHz DC1805A-H LTC2376CMS-18 250ksps 18 15.5MHz Quick Start Procedure Figure 2. DC1805A Test Diagram dc1805af 2 DEMO MANUAL DC1805A Quick Start Procedure This board is tested by measuring the distortion at the differential output given a -1dBFS, 2kHz single-ended input as shown in Figure 2. For SINAD, THD or SNR testing a low noise, low distortion generator such as Audio Precision SYS-2722, B&K Type 1051 or Stanford Research DS360 should be used. A low jitter RF oscillator such as the Marconi Instruments, Multisource Generator 2026 should be used as the clock source. To test the boards p