Analog Devices Inc. ADV7311KST

Overview

ADV7311KST from Analog Devices is a multiformat 216 MHz video encoder IC with six 12-bit NSV precision DACs, supporting simultaneous SD and HD input/output paths. It accepts 8-/10-/16-/20-bit parallel YCrCb/RGB data, delivers composite NTSC/PAL, S-Video, EuroScart RGB, and YPrPb HDTV outputs (EIA-770.1/770.2/770.3), and integrates on-chip PLL, gamma correction, adaptive sharpness filtering, and CGMS-A copy protection for 525p/625p/720p/1080i formats.

For engineers reviewing the ADV7311KST datasheet, ADV7311KST pinout, ADV7311KST application, or ADV7311KST equivalent, this page provides verified functional identity, validated 64-lead LQFP package mapping, confirmed dual I/O supply (2.5 V/3.3 V) operation, real-world timing mode support (HD Async, SD Master/Slave), and precise DAC output compliance (0–1.4 V, 4.33 mA typ), enabling rapid integration into professional video systems and broadcast-grade display devices.

Technical Context

The ADV7311KST implements a dual-path architecture with independent SD and HD timing generators, each with dedicated oversampling engines (up to 216 MHz for SD, 148.5 MHz for HD). Its internal PLL locks to CLKIN_A (27/74.25 MHz) or CLKIN_B (27/74.1758 MHz), enabling synchronous generation of analog outputs across multiple standards without external clock synthesis.

It supports programmable RGB matrix conversion, per-channel Y/Cr/Cb delay adjustment, luma-SSAF™ and chroma-SSAF™ filters, digital noise reduction (DNR) with coring gain control, and real-time subcarrier reset via RTC_SCR_TR - all configurable via 2-wire I²C interface with ALSB-selectable noise filtering.

Key Specifications

Pinout & Package

ADV7311KST is housed in a 64-lead LQFP (ST-64) package with exposed thermal pad, lead-free (100% Sn electroplate), RoHS-compliant, and compatible with both Pb-free (255°C) and SnPb (220–235°C) reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video encoder applications.

Compared with ADV7310KST, the ADV7311KST adds mandatory Macrovision 7.1.L1 for DVD recorder certification and extends CGMS-A to 720p/1080i; versus THS8200IPHP, it delivers full HD encoding, integrated PLL, and 12-bit precision-making it the sole option for broadcast-grade multiformat systems.

Availability

ADV7311KST is available at Aetrix Electronics and suitable for professional broadcast encoders, high-end DVD recorders, HDTV set-top boxes, and medical imaging display interfaces requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for ADV7311KST includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.

The ADV7311KST belongs to Analog Devices' ADV® video processing product line, engineered specifically for multistandard broadcast video encoding with emphasis on signal integrity, regulatory compliance (CGMS/Macrovision), and seamless integration into professional and consumer video systems.

FAQ

What video standards does the ADV7311KST natively support without external configuration?

The ADV7311KST natively supports SMPTE 274M (1080i), SMPTE 296M (720p), ITU-R BT.1358/1362 (525p/625p), SMPTE 293M (525p), BTA T-1004 EDTV2, ITU-R BT.470 (PAL), SMPTE 170M (NTSC), and CCIR-656-all through hardware-configured timing modes and register-mapped output formatting. No external logic or firmware translation is needed to generate compliant composite, S-Video, RGB, or YPrPb signals from the ADV7311KST.

How does the ADV7311KST handle simultaneous SD and HD video encoding?

The ADV7311KST uses physically separate SD and HD timing generators and pixel pipelines, allowing concurrent processing of CCIR-656 SD data (via S9–S0 bus) and SMPTE 274M HD data (via Y9–Y0/C9–C0/S9–S0 buses) without shared resource contention. Each path has independent oversampling, filtering, and sync insertion - enabling true simultaneous output of NTSC composite and 1080i YPrPb from the same ADV7311KST device.

What is the function of the RSET1 and RSET2 pins on the ADV7311KST?

RSET1 and RSET2 are precision current-setting pins that connect to AGND via 3040 Ω resistors to establish the full-scale output current of the ADV7311KST's six 12-bit DACs. RSET1 controls DACs A–C (primary outputs), while RSET2 controls DACs D–F (secondary outputs), enabling independent gain calibration for SD-only, HD-only, or simultaneous SD/HD configurations - critical for maintaining color balance across mixed-format outputs.

Does the ADV7311KST support Macrovision copy protection, and which versions are implemented?

Yes, the ADV7311KST supports Macrovision Rev 7.1.L1 for standard definition (525p/625p) outputs, as explicitly stated in the datasheet footnote and detailed features section. This version is required for DVD recorder certification. It does not implement Macrovision Rev 1.1 - that capability is exclusive to the pin-compatible ADV7310KST variant. The ADV7311KST also supports CGMS-A for both SD and HD formats including 720p and 1080i.

What package type and thermal characteristics apply to the ADV7311KST?

The ADV7311KST is supplied in a 64-lead LQFP (ST-64) package with exposed thermal pad, rated for θJA = 47°C/W and θJC = 11°C/W. It is lead-free (100% Sn electroplate), qualified for Pb-free reflow up to 255°C, and backward-compatible with SnPb processes (220–235°C). The package footprint matches industry-standard QFP layouts, simplifying PCB design and thermal management in space-constrained video modules.