Analog companion chip
Rev. 04 – 12 January 2004
1. General description
The PNX8510; PNX8511 is an analog backend companion chip to digital ICs
processing video and audio signals.
The primary difference between the PNX8510 and the PNX8511 is:
• PNX8510 includes the Macrovision™ pay-per-view copy protection system
• PNX8511 does not include Macrovision™
PNX8510/11 provides two video encoders through two standardized D1 interfaces.
The encoders can be bypassed to get direct access to the video DACs for higher
resolution displays. PNX8510/11 also contains a sophisticated sync raster engine
which can be utilized to generate various synchronization patterns for interlaced and
non-interlaced image formats. The sync raster engine together with an up-sampling
filter and a sync insertion unit compose a complete HDTV-capable data path
including tri-level sync generation.
PNX8510/11 also provides two independent pairs of stereo audio DACs with two
corresponding I2S-bus interfaces.
Figure 1 shows the PNX8510/11 with a typical source decoder.
■ Six 10-bit video DACs running at up to 135 MHz 1LSB DNL
■ Four audio DACs arranged as two stereo pairs
■ Two built-in digital video encoders
■ PAL B/G, NTSC-M and SECAM encoding
■ Two 10-bit D1 inputs with embedded VBI data
■ Two I2S-bus independent audio input ports
■ I2C-bus programmable (slave interface)
■ Support for high resolution video out up to 81 MHz interface clock rate
■ Support for input modes 2xD1, RGB, 1x 2D1 muxed, 24/30-bit RGB, DD1
■ Programmable generation of embedded analog and external digital sync signals
compliant to VESA and SMPTE 274 standards
■ VBI encoding for standard definition video out