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AQ-428 is a dual color quad processor chip having 8-channel input that displays 4 live channels and records quad channels and displays 1 playback channel at the same time.



  8-channel input and Independent 2-channel output ports (Multi screen display and Multi
     screen record path)
Various output data format for DVR system application
Maximum (252+60) fields video buffering function for pre-alarm by external memory expanding
Cost down by using external no-scale Video decoder
Board size reduction by one-chip construction of Display/Record system interface



8 channel Input and Independent Dual Output
Various output formats at each dual output
Normal display output mode (Full motion picture display, 30frame/sec)
DVR mode 1 (Odd field only display, 30frame/sec)
DVR mode 2 (360 x 240 or 360 x 288) format 4 channel 2 page output mode)
Maximum 312 fields storage & replay function
Pre-event (Motion or Alarm) storage and replay function
Record and Replay time interval adjust function
Output 1 : Max. 256Mbit x 4 SDRAM interface
Output 2 : Max. 256Mbit x 1 SDRAM interface
H/V Scaling Filter (1/2, 1/3, 2/3) embedded
1 channel PIP mode
NTSC/PAL/SECAM Video Signal Supported
2X Zoom and Selectable H/V Detail Enhancement
Each channel Freeze function
Color OSD (28 x 15 characters/picture) and embedded Font-ROM (170 characters)
Color Half-tone Background
208 Pin PQFP
Low Power 3.3V Operation
54MHz Clock Interface
ITU-R BT.656 Format interface with Video Decoder
ITU-R BT.656/8-bit ITU-R BT.601 Format Interface with Video Encoder
Parallel Host Interface
Selectable Split Border and Background Color Setting
Video Full Erase with specified Color
Channel freeze
Camera Loss Processing
Adjustable position, size and panning of each screen