Analog Devices Inc. ADV7162KS220

Overview

ADV7162KS220 from Analog Devices is a 96-bit, 220 MHz true-color video RAM-DAC with triple 10-bit gamma-correcting DACs, integrated 64×64 hardware cursor, and on-board PLL. It serves as the final-stage pixel-to-analog conversion engine in high-resolution graphics subsystems, supporting 1600×1200×24-bit @ 85 Hz refresh and RS-343A/RS-170 RGB analog outputs for professional imaging and digital TV.

For engineers reviewing the ADV7162KS220 datasheet, ADV7162KS220 pinout, ADV7162KS220 application, or ADV7162KS220 equivalent, key selection considerations include its 220 MHz pixel clock capability, 10-bit DAC matching (≤3% max), programmable multiplexed pixel port (2:1/4:1/8:1), tri-level sync support, and TTL/CMOS-compatible MPU interface for palette and register control.

Technical Context

The ADV7162KS220 implements a dual-path video data architecture: one path routes pixel data through 256×30 palette RAM before DAC conversion; the other bypasses RAM for direct pixel-to-DAC streaming-enabling real-time overlay of active video windows on graphics backgrounds. Its pixel port accepts 96 TTL-compatible inputs (R/G/B × 8 bits × 4 multiplex lanes) and supports 24-/16-/15-/8-bit formats with configurable LOADIN timing.

Internally, it integrates a fully programmable PLL referenced to a 900 kHz–40 MHz TTL input (PLLREF), generating precise pixel clocks and programmable outputs (PRGCKOUT at /4, /8, /16, /32). The device uses a 1.235 V external voltage reference (VREF) and RSET-based full-scale current calibration (280 Ω nominal) to achieve ±5% gray scale accuracy and ≤1 LSB INL/DNL across all three DACs.

Key Specifications

Pinout & Package

ADV7162KS220 is housed in a standard 160-lead plastic quad flatpack (QFP), RoHS-compliant, with exposed pad not specified for thermal enhancement (distinct from ADV7160's thermally enhanced PQUAD variant).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video RAM-DAC applications.

Compared with ADV7160KS220, the ADV7162KS220 trades thermal headroom for lower cost and standard QFP compatibility; compared with THS8135IPHP, it delivers full graphics subsystem integration-including palette, cursor, and PLL-at the expense of higher design complexity for non-RAM-DAC use cases.

Availability

ADV7162KS220 is available at Aetrix Electronics and suitable for Windows accelerators, professional color prepress imaging systems, digital television (HDTV) test equipment, and high-resolution true-color graphics workstations requiring stable component supply across extended production lifecycles.

Supply support for ADV7162KS220 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 a legacy of innovation in precision data conversion since 1965.

The ADV7162KS220 belongs to Analog Devices' video interface product line, engineered specifically for high-bandwidth, low-latency graphics subsystems in professional imaging, broadcast, and workstation markets where color fidelity, timing accuracy, and integration density are critical.

FAQ

What is the maximum supported resolution and refresh rate for ADV7162KS220?

The ADV7162KS220 supports up to 1600×1200×24-bit resolution at 85 Hz screen refresh rate when operated at its rated 220 MHz pixel clock. This capability is confirmed in the device's "Modes of Operation" specification table and enabled by its 96-bit multiplexed pixel port and triple 10-bit DAC architecture. Lower resolutions such as 1600×1200×16-bit or 8-bit pseudo-color are also supported at the same refresh rate.

Does ADV7162KS220 include an integrated PLL, and what reference input does it require?

Yes, the ADV7162KS220 includes a fully programmable on-board PLL. It requires a TTL-compatible PLLREF input clock ranging from 900 kHz to 40 MHz, as specified in the "PLL Performance" section. The PLL generates the precise pixel clock and programmable outputs (e.g., PRGCKOUT at /4, /8, /16, /32 divisions), eliminating need for external clock synthesizers in most graphics subsystem designs.

How does the pixel port multiplexing work on ADV7162KS220, and what data formats does it support?

The ADV7162KS220's 96-bit pixel port uses 4-lane multiplexing (A–D) per color channel, supporting 2:1, 4:1, or 8:1 configurations. It accepts 24-bit true-color, 16-bit, 15-bit, or 8-bit pseudo-color data formats. LOADIN frequency scales inversely with multiplex ratio (e.g., f_LOADIN = f_CLOCK/8 in 8:1 mode), allowing flexible interface timing to match GPU output capabilities.

What is the function of the RSET and VREF pins on ADV7162KS220?

VREF is an analog input requiring a precise 1.235 V ±1% external reference (e.g., AD589) to set DAC accuracy; RSET is an analog input connected to ground via a 280 Ω resistor to calibrate full-scale output current. Together, they ensure RS-343A compliance (17.62 mA black-to-white current) and maintain ≤5% gray scale error across the luminance range.

Is ADV7162KS220 pin-compatible with ADV7160KS220, and what is the key mechanical difference?

ADV7162KS220 and ADV7160KS220 share identical pinouts and electrical specifications but differ in package construction: ADV7162KS220 uses a standard 160-lead plastic QFP, while ADV7160KS220 uses a thermally enhanced PQUAD with embedded heatsink. No PCB layout changes are required for substitution, though thermal design must account for the 25 mA higher I_AA in the ADV7160 variant at 220 MHz.