Overview
The ADV601LCJST, produced by Analog Devices Inc., is an ultralow-cost, single-chip, dedicated function, all-digital CMOS VLSI device. It is designed to support visually loss-less to 350:1 real-time compression and decompression of CCIR-601 digital video at very high image quality levels. This device is optimized for real-time compression and decompression of interlaced digital video, making it suitable for a broad range of applications.
Key Specifications
| Parameter | Description |
|---|---|
| Video Interface | Supports CCIR-656 and multiplexed Philips formats |
| Host Interface | 16- or 32-bit, with 512 deep 32-bit FIFO |
| Compression Ratios | Visually loss-less to 350:1 |
| Video Resolution | 720x288 @ 50 fields/sec (PAL), 720x243 @ 60 fields/sec (NTSC) |
| Component Performance | 8 bits per component |
| Package Type | 120 pin TQFP |
| Internal Memory | 256K x 16-bit DRAM (field store) |
Key Features
- Real-time compression and decompression of CCIR-601 digital video
- Support for various component digital video formats, including D1
- Glueless video and host interfaces with on-chip SRAM
- Wavelet kernel with filters, decimators, and interpolators for wavelet transforms
- On-chip transform buffer to eliminate the need for fast external memories
- Adaptive quantizer, run length coder, and Huffman coder for efficient compression
- External DRAM manager for reordering and buffering quantizer input and output values
Applications
- PC video editing
- Remote CCTV surveillance
- Digital camcorders
- Digital video tape systems
- Wireless video systems
- TV instant replay systems
Q & A
- What is the primary function of the ADV601LCJST?
The primary function of the ADV601LCJST is to perform real-time compression and decompression of CCIR-601 digital video.
- What are the supported video resolutions for the ADV601LCJST?
The device supports 720x288 @ 50 fields/sec (PAL) and 720x243 @ 60 fields/sec (NTSC).
- What is the bit depth per component for the ADV601LCJST?
The ADV601LCJST offers 8 bits per component performance.
- What type of package does the ADV601LCJST come in?
The device is packaged in a 120 pin TQFP.
- What is the purpose of the on-chip transform buffer in the ADV601LCJST?
The on-chip transform buffer is used to perform wavelet transforms on the entire image’s data, eliminating the need for extremely fast external memories.
- What are some of the key applications for the ADV601LCJST?
Key applications include PC video editing, remote CCTV surveillance, digital camcorders, digital video tape systems, wireless video systems, and TV instant replay systems.
- How does the ADV601LCJST handle video and host interfaces?
The device integrates glueless video and host interfaces with on-chip SRAM, making it suitable for low part count, system-level implementations.
- What compression ratios does the ADV601LCJST support?
The device supports compression ratios from visually loss-less to 350:1.
- Is the ADV601LCJST compatible with other models?
The ADV601LCJST is 100% bitstream compatible with the ADV601.
- What is the role of the wavelet kernel in the ADV601LCJST?
The wavelet kernel gathers statistics on a per field basis and performs forward and backward bi-orthogonal, two-dimensional, separable wavelet transforms on horizontal scanned video data.
