ADV7184BSTZ

Overview

The ADV7184BSTZ is a multiformat SDTV video decoder manufactured by Analog Devices Inc., packaged in an 80-lead Pb-free LQFP. It supports NTSC (J/M/4.43), PAL (B/D/G/H/I/M/N), and SECAM standards, converting analog baseband signals into digital ITU-R BT.656 format. The device integrates four 54 MHz, 10-bit ADCs and twelve analog input channels for composite, S-video, and component inputs. Power requirements include AVDD at 3.15 V to 3.45 V, DVDD at 1.65 V to 2.0 V, and DVDDIO at 3.0 V to 3.6 V. It operates within an industrial temperature range of −40°C to +85°C.

Feature Summary

• Integrates four 54 MHz, 10-bit ADCs with adaptive digital line length tracking for robust decoding of weak or noisy sources.
• Features a 5-line adaptive comb filter and chroma transient improvement for superior luminance and chrominance separation.
• Supports simultaneous processing of CVBS and standard definition RGB signals for SCART fast blank overlay functionality.
• Includes integrated automatic gain control, digital noise reduction, and Macrovision copy protection detection.

Applications

• High-end DVD recorders
• Video projectors
• HDD-based PVRs/DVDRs
• LCD TVs
• Security systems

Procurement Notes

Verify the specific ordering suffix BSTZ corresponds to the 80-lead LQFP package and industrial temperature grade. Confirm that the component meets RoHS3 compliance requirements as indicated in distributor listings. Ensure compatibility with the required 28.63636 MHz crystal clock source for proper operation.

Selection Notes

Select this decoder when multiformat support for NTSC, PAL, and SECAM is required alongside high-quality 10-bit digitization. Consider the 80-lead LQFP package constraints and the need for separate 3.3 V analog and 1.8 V digital power supplies. Evaluate the I2C interface requirements for register configuration and standard detection settings.

Part Context

The ADV7184 is part of Analog Devices' advanced video decoder family designed for professional and consumer multimedia applications. It succeeds earlier models by offering enhanced line-locked clocking and improved handling of unstable video sources like VCRs. The device simplifies system design by integrating necessary signal processing blocks on a single chip.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-references through official Analog Devices resources if alternative components are required.

FAQ

What is the nominal frequency for the crystal oscillator?

The ADV7184 requires a 28.63636 MHz fundamental crystal connected to the XTAL and XTAL1 pins.

How does the device handle SCART overlay?

It processes CVBS and standard definition RGB signals simultaneously, with signal mixing controlled by the Fast Blank (FB) pin.

What video output formats are supported?

The device outputs ITU-R BT.656 YCrCb 4:2:2 data with HS, VS, and FIELD signals in either 8-bit or 16-bit digital formats.