Appendix A
Specifications
A-2
www.ni.com
A/D Conversion
Gray levels ..............................................256 (8 bit)
Differential nonlinearity .........................±1 LSB max
RMS noise ..............................................< 0.5 LSB rms
Signal-to-noise ratio ...............................48 dB typ
Sampling rate ..........................................5 to 20 MHz, externally clocked
Pixel aspect ratio.....................................Programmable (VCO range
11.0 to 16.4 MHz)
External Connections
Trigger sense...........................................TTL
Trigger level ...........................................Programmable (rising or falling)
PCLKIN sense ........................................Selectable (TTL or RS-422)
PCLKIN level .........................................Programmable (direct or invert)
HSYNCIN sense.....................................Selectable (TTL or RS-422)
HSYNCIN level......................................Programmable (rising or falling)
VSYNCIN sense.....................................Selectable (TTL or RS-422)
VSYNCIN level......................................Programmable (rising or falling)
CSYNCIN sense .....................................Selectable (TTL or RS-422)
CSYNCIN level ......................................Programmable (rising or falling)
Pulse width .............................................50 ns
V
IH
(TTL) ...............................................2 V
V
IL
(TTL)................................................0.8 V
