data brief for further information contact your local stmicroelectronics sales office. february 2009 rev 1 1/4 4 STEVAL-CCA010V1 demonstration board for video buffer plus filter with sag correction based on the tsh122 features operation supply from 2.25 to 5 v single power supply very low consumption: 1.7 ma ultra low power-down mode: 4 na typ., 500 na max. internal 6th order reconstruction filter internal gain of 6 db rail-to-rail output buffer for 75 ? video line excellent video performances: ? differential gain 0.5% ? differential phase 0.10 ? group delay of 10 ns sag correction bottom of video signal close to 0 v description the demonstration board STEVAL-CCA010V1 is designed to evaluate the tsh122 that is a video buffer that uses a voltage feedback amplifier, with an internal gain of 6 db, an output rail-to-rail, an internal input dc-shift and a sag correction. a power-down function allows switching to a sleep mode with an ultra-low consumption. the tsh122 features a 6th-order internal reconstruction filter to attenuate the parasitic frequency of 27 mhz from the clock of the video dac. the tsh122 is a single operator available in a tiny sc70 plastic package for space saving. STEVAL-CCA010V1 www.st.com
circuit schematic STEVAL-CCA010V1 2/4 1 circuit schematic figure 1. schematic
STEVAL-CCA010V1 revision history 3/4 2 revision history table 1. document revision history date revision changes 02-feb-2009 1 initial release.
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