Analog Devices Inc. ADV7301AKST

Overview

ADV7301AKST from Analog Devices is a multiformat SD/HD video encoder IC with six 12-bit NSV™ DACs, supporting simultaneous standard definition (CCIR-601/656) and high definition (SMPTE274M/296M/EIA-770.x) inputs and outputs. It delivers YPrPb progressive scan, RGB+H/V, and composite/S-Video outputs with 30 MHz luma bandwidth in HDTV mode and integrated PLL, gamma correction, and programmable adaptive filters - deployed in SD/HDTV set-top boxes and studio equipment.

For engineers reviewing the ADV7301AKST datasheet, ADV7301AKST pinout, ADV7301AKST application, or ADV7301AKST equivalent, key selection criteria include simultaneous SD/HD input capability, 12-bit DAC matching (±2.0%), 64-LQFP package compatibility, and I²C-configurable output formats including CGMS-A and Macrovision Rev 7.1 support.

Technical Context

The ADV7301AKST integrates dual pixel clock domains (CLKIN_A for HD/SD, CLKIN_B for simultaneous mode), a timing generator with EAV/SAV insertion, and independent SD/HD control blocks managing color space conversion (YCrCb→RGB), sharpness filtering, DNR, and gamma correction. Its oversampling architecture supports 108 MHz (SD) and 148.5 MHz (HDTV) rates with pipeline delays of 43.5–66.5 clock cycles depending on input mode.

It features two independent 10-bit parallel input ports (Y/C and S ports), configurable via Input Mode Register (Subaddr 01h), and six dedicated analog outputs (DAC A–F) with individual pedestal control, RSET-based current scaling (8.2–9.2 mA full-scale), and 1 ns output skew - enabling precise multi-format video synthesis without external reconstruction filters.

Key Specifications

Pinout & Package

ADV7301AKST uses a 64-lead LQFP (ST-64B) package with exposed thermal pad, lead-free tin electroplating, and 0.5 mm pitch. Pin functions are validated per Analog Devices datasheet Rev. A, with dedicated SD (S0–S9), HD (Y0–Y9, C0–C9), sync (P_HSYNC/P_VSYNC/S_HSYNC/S_VSYNC), and DAC output (DAC A–F) terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADV7300AKST, ADV7301AKST adds mandatory Macrovision Rev 7.1 for DVD playback compliance, while ADV7391WSTZ replaces analog DACs with HDMI output - making ADV7301AKST the sole option for high-fidelity, copy-protected analog video generation in existing SD/HDTV platforms.

Availability

ADV7301AKST is available at Aetrix Electronics and suitable for SD/HDTV set-top boxes, studio video processors, and DVD player output stages requiring stable component supply and long-term industrial availability.

Supply support for ADV7301AKST 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 is a global leader in high-performance analog, mixed-signal, and DSP technologies, serving industrial, communications, and consumer markets with precision signal processing solutions.

The ADV7301AKST belongs to Analog Devices' video encoder product line, designed specifically for multiformat broadcast video systems requiring simultaneous SD and HD analog output generation with robust copy protection and calibration features.

FAQ

What video standards does the ADV7301AKST support for high-definition output?

The ADV7301AKST supports EIA-770.1 (YPrPb progressive scan), EIA-770.2 (YPrPb 720p), and EIA-770.3 (YPrPb 1080i) HDTV output formats, along with RGB+H/V 5-wire format. It complies with SMPTE274M (1080i), SMPTE296M (720p), and ITU-R BT.1358 (625p) standards in async timing mode. All HD outputs maintain 30 MHz luma bandwidth and ≤1 ns output skew.

How does the ADV7301AKST handle simultaneous SD and HD input streams?

The ADV7301AKST accepts concurrent SD (via S0–S9 port) and HD (via Y0–Y9/C0–C9 ports) inputs using dual pixel clocks (CLKIN_A and CLKIN_B). Input Mode Register (Subaddr 01h) configures modes like "SD and HDTV (HDTV Oversampled)" (110b) or "SD and PS (10-Bit)" (100b), with pipeline delays of 43.5–66.5 clock cycles ensuring synchronized output timing across formats.

What is the function of the RSET1 and RSET2 pins on the ADV7301AKST?

RSET1 (Pin 35) and RSET2 (Pin 47) on the ADV7301AKST each connect to AGND via a 760 Ω resistor to set the full-scale output current of three DACs (RSET1 controls DACs A–C; RSET2 controls DACs D–F). This provides precise 8.2–9.2 mA current scaling per DAC, enabling consistent amplitude matching across all six video outputs without external amplification.

Does the ADV7301AKST support closed captioning and CGMS-A insertion?

Yes, the ADV7301AKST supports both closed captioning and CGMS-A (Copy Generation Management System – Analog) insertion. CGMS-A is implemented for 525p, 625p, 720p, and 1080i outputs per EIA/CEA-608 and EIA/CEA-708 standards. Closed captioning data is embedded in the vertical blanking interval of composite and S-Video outputs, verified in SD and HD modes per datasheet Rev. A.

What thermal and packaging specifications apply to the ADV7301AKST?

The ADV7301AKST uses a lead-free 64-lead LQFP (ST-64B) package with θJA = 47°C/W and θJC = 11°C/W. It operates from 0°C to +70°C ambient, supports IR reflow up to 260°C (20 sec), and features 100% pure tin electroplated leads compatible with both lead-free (255°C) and SnPb (220–235°C) soldering processes - meeting RoHS and WEEE environmental compliance.