Overview
The ADV7177KSZ-REEL, produced by Analog Devices Inc., is an integrated digital video encoder designed to convert digital CCIR-601 4:2:2 8- or 16-bit video data into standard analog baseband video formats. This component is part of the ADV7177/ADV7178 family, which offers comprehensive video encoding capabilities. It supports various video output formats, including composite (CVBS), S-video (Y/C), and component YUV or RGB video. The encoder is highly versatile, supporting both PAL and NTSC standards and offering programmable features for luma filters, vertical blanking interval (VBI), and subcarrier frequency and phase.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution (Each DAC) | 9 Bits | |||
| Accuracy (Each DAC) - Integral Nonlinearity | ±0.5 LSB | |||
| Accuracy (Each DAC) - Differential Nonlinearity | Guaranteed monotonic ±0.5 LSB | |||
| Input High Voltage, VINH | 2 V | |||
| Input Low Voltage, VINL | 0.8 V | |||
| Input Current, IIN (VIN = 0.4 V or 2.4 V) | ±1 µA | |||
| Input Capacitance, CIN | 10 pF | |||
| Output Current (DACs A, B, C) - Full Drive | 34.7 mA | into 37.5 Ω (doubly terminated 75 Ω) | ||
| Output Current (DACs A, B, C) - Low Signal Drive | 5 mA | with external buffers | ||
| Supply Voltage, VAA | 3.0 V | 3.3 V | 3.6 V | V |
| Operating Temperature Range | 0°C | 70°C | °C |
Key Features
- Supports CCIR-656 4:2:2 8-bit and 16-bit parallel input formats
- Programmable simultaneous composite and S-VHS (VHS) Y/C or RGB (SCART)/YUV video outputs
- Programmable luma filters (low-pass/notch/extended)
- Programmable VBI (vertical blanking interval)
- Programmable subcarrier frequency and phase
- Programmable luma delay
- Individual on/off control of each DAC
- Support for both PAL and NTSC square pixel operation
- Interlaced/noninterlaced operation
- Complete on-chip video timing generator
- OSD (On-Screen Display) support (ADV7177 only)
- Programmable multimode master/slave operation
Applications
- Video encoding in consumer electronics such as TVs, DVD players, and set-top boxes
- Professional video equipment like video mixers and switchers
- Medical imaging devices requiring high-quality video output
- Industrial video systems, including surveillance and monitoring
- Automotive infotainment systems
Q & A
- What is the primary function of the ADV7177KSZ-REEL?
The primary function is to convert digital CCIR-601 4:2:2 video data into standard analog baseband video formats.
- What video output formats does the ADV7177KSZ-REEL support?
It supports composite (CVBS), S-video (Y/C), and component YUV or RGB video.
- What are the supported video standards?
The component supports both PAL and NTSC standards.
- Can the output current of the DACs be adjusted?
- What is the operating temperature range of the ADV7177KSZ-REEL?
The operating temperature range is from 0°C to 70°C.
- Does the ADV7177KSZ-REEL support on-screen display (OSD)?
Yes, but only the ADV7177 model supports OSD.
- What is the resolution of each DAC in the ADV7177KSZ-REEL?
Each DAC has a resolution of 9 bits.
- Can the luma filters be programmed?
- Is the subcarrier frequency and phase programmable?
- What is the purpose of the on-chip video timing generator?
The on-chip video timing generator synchronizes the output video frames with the incoming data timing reference codes.
