[Gennum]

DEVICE OVERVIEW

The GF9105A is a drop in replacement for the GF9105 with lower power and increased functionality. This increased functionality gives the user the option of having HVF output signals and the option of using a low frequency clock when operating with non-multiplexed input and output data. The GF9105A is a flexible VDSP engine capable of performing a variety of format conversions. The flexible architecture of the GF9105A also allows the user to perform a wide range of DSP functions that require a general 3X3 multiplier structure and/or high performance 1:2 interpolation and 2:1 decimation filters. Device configuration is selected by writing configuration words through an asynchronous parallel interface (HOST IF).

FEATURES

• drop in replacement for the GF9105 with lower power and increased functionality

• new mode for HVF output

• new mode for using low frequency clocks with non multiplexed I/O data

• optimized HOST IF control signals for ensured shared bus compatibility

• multiple format conversions from one device

4:2:2:4 4:4:4:4

4:2:2:4 R/G/B/KEY

4:2:2:4 Y/U/V/KEY

Y/U/V/KEY R/G/B/KEY

4:4:4:4 R/G/B/KEY

4:4:4:4 Y/U/V/KEY

• ITU-R-601 compliant interpolation/decimation filters

• supports both single link 4:4:4:4 (SMPTE RP174) and dual link 4:4:4:4 (SMPTE RP175) compliant I/O

• transparent conversions between Y/U/V and R/G/B color spaces.

• fully programmable 3X3 Color Space Converter (CSC)

• 13 bit Color Space Converter coefficients

• 13 bit KEY Channel scaling coefficient

• multiplexed and non-multiplexed I/O data

• bi-directional I/O data ports with tri-stating

• parallel HOST IF for reading and writing multiplier coefficients and device configuration words

• single +5V power supply.