Analog Devices Inc. ADV7160KS220

Overview

ADV7160KS220 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 core video output engine in high-resolution graphics subsystems, supporting 1600×1200×24-bit @ 85 Hz refresh and RS-343A/RS-170 analog RGB outputs for professional imaging and digital TV applications.

For engineers reviewing the ADV7160KS220 datasheet, ADV7160KS220 pinout, ADV7160KS220 application, or ADV7160KS220 equivalent, this page delivers verified technical context, exact pin functions, real-world timing constraints (e.g., 220 MHz pixel clock, 4.5 ns min cycle time), and validated alternative options for legacy graphics design continuity.

Technical Context

The ADV7160KS220 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 per-pixel overlay of active video windows on graphics backgrounds. Its programmable pixel port supports 24-/16-/15-/8-bit formats via 2:1, 4:1, or 8:1 multiplexing, with LOADIN frequency scaling inversely with multiplex ratio (e.g., 110 MHz at 2:1).

It integrates a fully programmable on-chip PLL referenced by a TTL-compatible 900 kHz–40 MHz PLLREF input, generating precise pixel clocks; tri-level SYNC functionality enables HDTV-compliant sync signaling; and JTAG test access (TCK ≤20 MHz) supports boundary-scan validation without disrupting MPU or pixel port operation.

Key Specifications

Pinout & Package

ADV7160KS220 uses a 160-lead thermally enhanced plastic quad flatpack (PQUAD) package optimized for high-power video DAC thermal dissipation. Pin assignments follow standard QFP layout with dedicated power/ground distribution (22× VAA, 12× GND) and functional grouping: pixel inputs (R/G/B A–D banks), MPU interface (D0–D9, CE, R/W, C0/C1), clock/control (CLOCK×2, LOADIN/LOADOUT, SCKIN/SCKOUT, PLLREF), and analog outputs (IOR/IOG/IOB, VREF, RSET).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADV7160KS220, ADV7162KS220 offers identical functionality but reduced thermal headroom, while ADV7125KSTZ sacrifices palette, cursor, and clock generation to achieve smaller size and lower cost-making it suitable only for minimal video output roles.

Availability

ADV7160KS220 is available at Aetrix Electronics and suitable for Windows accelerators, professional prepress imaging systems, digital TV encoders, and high-resolution graphics workstations requiring stable component supply and long-term obsolescence management.

Supply support for ADV7160KS220 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 deep expertise in precision data conversion and video infrastructure.

The ADV7160KS220 belongs to Analog Devices' legacy video DAC product line, specifically engineered for high-bandwidth, low-latency true-color graphics subsystems in commercial workstations and broadcast equipment-prioritizing timing accuracy, color fidelity, and integration density.

FAQ

What is the maximum supported resolution and refresh rate for ADV7160KS220?

The ADV7160KS220 supports up to 1600×1200×24-bit resolution at 85 Hz screen refresh when operating at its rated 220 MHz pixel clock. This is explicitly confirmed in the "Modes of Operation" section of the datasheet and enabled by its 96-bit pixel port and 220 MHz DAC throughput. The ADV7160KS220 achieves this using 2:1 multiplexing with LOADIN running at 110 MHz.

Does ADV7160KS220 include an integrated PLL, and what is its reference input requirement?

Yes, the ADV7160KS220 includes a fully programmable on-board PLL. Its PLLREF input accepts TTL-compatible signals from 900 kHz to 40 MHz, with specified VIH ≥2.0 V and VIL ≤0.8 V. The PLL generates the internal pixel clock and supports precise frequency synthesis for synchronization with external video sources-critical for ADV7160KS220's role in HDTV and graphics timing applications.

How does the pixel port multiplexing work on ADV7160KS220, and what data formats does it support?

The ADV7160KS220 pixel port supports 2:1, 4:1, and 8:1 multiplexing to accommodate varying controller bandwidths. It accepts 24-bit true-color, 16-bit, 15-bit, and 8-bit pseudo-color data formats. Each color channel (R/G/B) has four 8-bit inputs (A–D), and multiplexing reduces pin count while maintaining throughput-e.g., 8:1 mode allows 8-bit data at 27.5 MHz LOADIN for 220 MHz pixel rate. This flexibility is central to ADV7160KS220's use in diverse graphics architectures.

What is the purpose of the TRISYNC input on ADV7160KS220, and how is it configured?

The TRISYNC input on ADV7160KS220 enables tri-level sync signaling required by HDTV standards such as SMPTE 293M. When enabled via bit CR17 in Command Register 1, a low TRISYNC signal forces enabled DAC outputs (IOR/IOG/IOB) to the tri-sync level (6.29–8.96 mA) during blanking periods. This provides precise sync pulse timing distinct from standard composite sync-making ADV7160KS220 suitable for broadcast encoder designs where TRISYNC compliance is mandatory.

Can ADV7160KS220 operate without external memory, and what is the role of its internal palette RAM?

Yes, the ADV7160KS220 can operate in bypass mode-routing pixel data directly to DACs without palette lookup-eliminating need for external memory. Its internal 256×30 palette RAM (256×10 per R/G/B) enables indexed color modes and overlay effects; the palette is programmable via the 10-bit MPU port and supports three independent palettes (main, overlay, cursor). This dual-path capability makes ADV7160KS220 adaptable to both memory-constrained and feature-rich graphics implementations.