Analog Devices Inc. AD9882AKSTZ-140

Overview

AD9882AKSTZ-140 from Analog Devices is a dual-mode 8-bit, 140 MSPS analog/digital video receiver IC for flat panel display interfaces. It integrates a triple ADC with 300 MHz full-power analog bandwidth, DVI 1.0–compliant digital receiver, and HDCP v1.0 decryption engine. It supports SXGA (1280 × 1024) at 75 Hz via analog input and 60 Hz via DVI, delivering RGB/YPbPr data in 4:2:2 format with 500 ps p-p PLL jitter at 140 MSPS.

For engineers reviewing the AD9882AKSTZ-140 datasheet, AD9882AKSTZ-140 pinout, AD9882AKSTZ-140 application, or AD9882AKSTZ-140 equivalent, key selection criteria include dual-interface timing alignment, HDCP authentication capability, analog input range (0.5–1.0 V), 3.3 V supply compatibility, and LQFP-100 package integration for display controller designs.

Technical Context

The AD9882AKSTZ-140 implements two independent but co-timed signal paths: an analog interface with programmable clamp, gain, and offset control feeding three 8-bit ADCs, and a DVI 1.0 receiver with intrapair skew tolerance up to one full clock cycle. Both paths share DATACK, HSOUT, VSOUT, and DE outputs while maintaining separate sync processing engines.

Its PLL generates pixel clocks from 12 MHz to 140 MHz using HSYNC as reference, with jitter performance specified at 500 ps p-p (typ) at maximum rate. HDCP v1.0 compliance includes authentication, encrypted data decryption, and session renewability - all implemented in hardware without external firmware.

Key Specifications

Pinout & Package

The AD9882AKSTZ-140 is housed in a 100-lead LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant and Pb-free, rated for 0°C to 70°C operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-interface video receiver applications.

Compared with AD9882AKSTZ-140, AD9884AKSTZ-140 offers higher resolution headroom but sacrifices pin/register compatibility, while TFP401APZPR reduces cost and complexity at the expense of analog interface capability and embedded HDCP security.

Availability

AD9882AKSTZ-140 is available at Aetrix Electronics and suitable for LCD monitor manufacturing, plasma display controller design, and scan converter development requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for AD9882AKSTZ-140 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 digital signal processing semiconductors, serving industrial, automotive, communications, and consumer markets since 1965.

The AD988x family was designed specifically for flat-panel display interface consolidation - integrating analog capture, digital reception, and content protection into a single chip to simplify display controller architecture.

FAQ

What is the primary function of the AD9882AKSTZ-140 in display systems?

The AD9882AKSTZ-140 serves as a dual-mode video receiver that simultaneously supports analog RGB/YPbPr input capture and DVI 1.0 digital video reception. It converts incoming signals into parallel 8-bit RGB data with synchronized timing outputs (DATACK, HSOUT, VSOUT), enabling direct interfacing with display processors or FPGAs. Its integrated HDCP v1.0 engine allows secure playback of encrypted content without external security components.

Does the AD9882AKSTZ-140 support both analog and digital inputs at the same time?

No - the AD9882AKSTZ-140 operates in either analog or digital mode, selected automatically based on active input detection. It does not process both streams concurrently. However, it maintains identical output timing behavior (DATACK phase alignment, HSOUT/VSOUT synchronization) regardless of active interface, simplifying system-level timing design during mode transitions.

What are the power supply requirements for the AD9882AKSTZ-140?

The AD9882AKSTZ-140 requires three independent supplies: VD (3.15–3.45 V) for analog circuitry, VDD (2.2–3.45 V) for digital outputs, and PVD (3.15–3.45 V) for the PLL. This separation minimizes noise coupling - especially critical for low-jitter pixel clock generation. Total supply current is 274 mA (typ) at 140 MSPS with HDCP enabled.

How does the AD9882AKSTZ-140 handle sync-on-green (SOG) signals?

The AD9882AKSTZ-140 includes dedicated SOGIN and SOGOUT pins. SOGIN connects to the green channel of an AC-coupled analog source; an internal comparator slices the embedded sync, producing a clean digital output on SOGOUT. Register 0x0F configures threshold level, and SOGOUT can be routed to HSOUT or used directly - enabling robust timing recovery from SOG-based VGA or component video sources.

Is the AD9882AKSTZ-140 pin-compatible with other members of the AD988x family?

No - the AD9882AKSTZ-140 is not pin-compatible with AD9883A or AD9884A. While all share the 100-lead LQFP package, pin functions differ significantly (e.g., AD9884A adds auxiliary data lanes and reassigns several control pins). Register maps also differ; software written for AD9882AKSTZ-140 requires modification to support AD9884AKSTZ-140 functionality.