AHD

High Definition Analog CCTV

AHD™, a widely used standard, allows CCTV to be upgraded to High Definition using existing coaxial infrastructure.

AHD1.0 (720p60) and AHD 2.0(1080p30) gives HD/FHD video transmission over 500 meters.

Real time, uncompressed video transmission is supported on low cost cables.

NextChip, the company behind the standard,  provide encoders and decoders to allow upgrading CCTV networks at low cost.

 

AHD™Transmission

The NVP6021 is a high speed, 16 bit digital-to-analogue (AHD1.0/2.0) video encoder in a 40-eQFN package.

NVP6021
Input 8/16 bits
Supported Video Inputs BT.1543, BT.1847, SMPTE 296M (1280*720)
BT.1120(BT.709), SMPTE 274M (1920*1080)
Output HD-AHD1.0/AHD2.0
Power consumption 135mW
Package 40-eQFN (5x5mm)

 

AHD™ Receiver

NextChip provide 2 receiver options.  Both decode AHD1.0 and AHD2.0.

NVP6114A NVP6124
Analogue Video In Options 4-CH AHD1.0 (720p60/50) 4-CH AHD1.0 (720p60/50)
2-CH AHD2.0 (1080p30/25) 4-CH AHD2.0 (1080p30/25)
Support 4-CH CVBS, COMET, NTSC, PAL Support 4-CH CVBS, COMET, NTSC, PAL
Digital Video Out 2×8 bit or 1×16 bit 4×8 bit or 2×16 bit
Output formats 8-bit BT.656/BT.1120 4:2:2 byte interleave format 8-bit BT.656/1120 4:2:2 byte interleave format
Audio 9-CH PCM Audio CODEC 9-CH PCM Audio CODEC
Power Consumption 800mW 905mW
Package 76-eQFN (9x9mm) 128-eQFP (14x14mm)