Analog Devices Inc. AD9983AKSTZ-170

Overview

AD9983AKSTZ-170 from Analog Devices is a monolithic 8-bit, 140 MSPS analog video interface IC optimized for RGB/YPbPr digitization in display systems. It integrates triple 8-bit ADCs, a jitter-suppressed PLL clock generator (10–140 MHz), auto-gain/offset calibration, and programmable output formatting (4:4:4, 4:2:2, DDR). It supports HDTV up to 1080i/720p and SXGA graphics (1280×1024@75 Hz) with full-power analog bandwidth of 300 MHz.

For engineers reviewing the AD9983AKSTZ-170 datasheet, AD9983AKSTZ-170 pinout, AD9983AKSTZ-170 application, or AD9983AKSTZ-170 equivalent, key selection criteria include its 140 MSPS sampling rate, tri-channel gain/offset matching capability, dual-input mux support (RAIN0/RAIN1, etc.), regenerated HSOUT timing alignment, and 80-lead LQFP package with 1.8 V/3.3 V mixed-supply operation.

Technical Context

The AD9983AKSTZ-170 implements three independent 8-bit ADC channels with internal PGA, clamp control, and auto-calibration logic for simultaneous R/G/B or Y/Pb/Pr signal capture. Its PLL locks to tri-level sync (YPbPr) or Hsync (RGB), sustaining stable 140 MHz output with <1 ps/°C phase drift and programmable 32-step sampling phase adjustment.

Digital outputs include three 8-bit parallel buses (RED[7:0], GREEN[7:0], BLUE[7:0]), DATACK, HSOUT, VSOUT/A0, SOGOUT, and O/E FIELD - all CMOS-compatible with configurable drive strength and high-impedance control. Sync processing supports composite sync separation, SOG slicing, and odd/even field detection via dedicated hardware blocks.

Key Specifications

Pinout & Package

AD9983AKSTZ-170 is housed in an 80-lead Pb-free LQFP package (12 mm × 12 mm, 0.5 mm pitch), optimized for thermal performance (θ_JA = 35°C/W) and surface-mount assembly in display interface PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9983AKSTZ-170, the AD9983AKSTZ offers identical functionality but lacks explicit speed-binning validation at 140 MSPS across temperature, while ADV7123KSTZ240 serves a fundamentally different signal chain position (DAC vs. ADC), making neither a drop-in replacement - AD9983AKSTZ-170 remains uniquely specified for high-speed, calibrated RGB/YPbPr digitization with integrated timing recovery.

Availability

AD9983AKSTZ-170 is available at Aetrix Electronics and suitable for advanced TV manufacturing, HDTV signal conditioning, and LCD monitor input processing requiring stable component supply, long-term lifecycle support, and guaranteed 140 MSPS performance across 0°C to 70°C.

Supply support for AD9983AKSTZ-170 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 AD9983A product line delivers highly integrated video interface ICs designed specifically for digitizing analog RGB and YPbPr video in display systems - emphasizing jitter-controlled clocking, auto-calibration, and robust sync handling without external components.

FAQ

What is the maximum supported pixel clock frequency for AD9983AKSTZ-170?

The AD9983AKSTZ-170 supports a maximum conversion rate of 140 MSPS, enabling pixel clock frequencies up to 140 MHz. This covers all HDTV formats including 1080i and 720p, as well as SXGA graphics (1280×1024 at 75 Hz). The on-chip PLL generates this clock from Hsync or tri-level sync inputs, and phase adjustment is programmable in 32 steps to optimize sampling point.

Does AD9983AKSTZ-170 support both RGB and YPbPr analog input formats?

Yes, AD9983AKSTZ-170 natively supports both RGB and YPbPr analog inputs. Its triple ADC architecture accepts R/G/B or Y/Pb/Pr signals on the same input pins (RAIN0/GAIN0/BAIN0, etc.), with PLL lock mode selectable via register settings - tri-level sync for YPbPr, Hsync for RGB. Clamp, gain, and offset calibration operate identically across both formats.

How does the auto-gain and auto-offset calibration work in AD9983AKSTZ-170?

AD9983AKSTZ-170 performs auto-gain matching and auto-offset adjustment independently per channel during vertical blanking intervals. Auto-offset restores DC reference levels and calibrates out inter-channel offset differences (≤±0.3 LSB). Auto-gain minimizes gain mismatches to ≤1% full scale. Both features are enabled/disabled via serial register control and require no external calibration circuitry.

Can AD9983AKSTZ-170 operate with a 1.8 V-only supply configuration?

AD9983AKSTZ-170 requires multiple supply domains: VD = 1.8 V (analog core), PVD = 1.8 V (PLL), DAVDD = 1.8 V (digital logic), and VDD = 1.8–3.3 V (output drivers). While analog and logic supplies can be 1.8 V, VDD must be ≥1.8 V but may be raised to 3.3 V for higher drive strength or interfacing with 3.3 V logic - it is not a single-rail device.

What package type and lead count does AD9983AKSTZ-170 use?

AD9983AKSTZ-170 uses an 80-lead Pb-free LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. This surface-mount package supports standard reflow profiles and provides θ_JA = 35°C/W for thermal management in compact display interface designs. Pinout is fully documented in the AD9983A datasheet Rev. 0, Figure 2.