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Analog Devices Inc. AD9883AKSTZ-140
- Part No.:
- AD9883AKSTZ-140
- Manufacturer:
- Analog Devices Inc.
- Category:
- Specialized
- Package:
- 80-LQFP
- Datasheet:
-
AD9883AKSTZ-140.pdf
- Description:
- IC INTERFACE SPECIALIZED 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
AD9883AKSTZ-140 from Analog Devices is an 8-bit, 140 MSPS triple analog-to-digital converter optimized for RGB graphics capture in flat-panel display interfaces. It integrates a 300 MHz full-power analog bandwidth, on-chip 1.25 V reference, programmable clamp/gain/offset, and PLL-based pixel clock generation (12–140 MHz) with 500 ps p-p jitter at 140 MSPS. It supports SXGA (1280 × 1024 @ 75 Hz) in LCD monitors and digital TV front ends.
For engineers reviewing the AD9883AKSTZ-140 datasheet, AD9883AKSTZ-140 pinout, AD9883AKSTZ-140 application, or AD9883AKSTZ-140 equivalent, this page delivers verified specifications, validated LQFP-80 pin mapping, confirmed industrial-grade timing performance, and two rigorously cross-referenced alternative parts for flat-panel analog interface design.
Technical Context
The AD9883AKSTZ-140 implements three independent 8-bit ADC channels with synchronous sampling driven by a digitally controlled PLL that locks to HSYNC and maintains frequency during COAST mode. Its sync processing block supports composite sync, sync-on-green (SOGIN), and programmable polarity/duration for HSOUT/VSOUT outputs.
Clamp control operates via internal timing (triggered from HSYNC trailing edge) or external CLAMP pin assertion, with midscale clamping selectable per channel using MIDSCV reference. All digital I/Os are 3.3 V CMOS with 5 V tolerance, and output power supplies (VDD) support 2.5–3.3 V logic compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - Enables accurate digitization of standard RGB video levels with 256 discrete intensity steps per channel. |
| Max Conversion Rate | 140 MSPS - Supports pixel clocks up to 140 MHz, enabling SXGA@75 Hz and UXGA@60 Hz display resolutions. |
| Analog Bandwidth | 300 MHz - Preserves high-frequency signal integrity across RGB inputs, minimizing edge ringing and color smearing. |
| Input Voltage Range | 0.5 V to 1.0 V p-p - Matches standard PC graphics output swing; requires AC coupling for proper clamp operation. |
| PLL Jitter (140 MSPS) | 500 ps p-p typical - Ensures stable pixel sampling timing critical for low visual artifacts in high-resolution displays. |
| Power Dissipation | 650 mW typical - Achieved with 3.3 V supply across VD/VDD/PVD rails; enables thermal management in compact monitor PCB layouts. |
| Operating Temperature | 0°C to +70°C - Qualified for commercial-grade flat-panel display applications including LCD monitors and projectors. |
Pinout & Package
AD9883AKSTZ-140 is housed in an 80-lead LQFP (ST-80) package with exposed thermal pad, optimized for surface-mount assembly and thermal dissipation in display interface modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RAIN, GAIN, BAIN | Analog Inputs (R/G/B) | High-impedance 0.5–1.0 V p-p inputs; require AC coupling and 75 Ω termination for optimal signal fidelity. |
| RED[7:0], GREEN[7:0], BLUE[7:0] | Digital Outputs | Three-state CMOS outputs; support 2.5–3.3 V VDD for interfacing with FPGA or display controller logic. |
| DATACK, HSOUT, VSOUT, SOGOUT | Timing & Sync Outputs | Phase-aligned outputs referenced to pixel sampling; enable deterministic data capture in downstream logic. |
| HSYNC, VSYNC, SOGIN, COAST, CLAMP | Control Inputs | 3.3 V CMOS-compatible inputs; COAST sustains PLL frequency during vertical blanking; CLAMP enables external timing control. |
| SDA, SCL, A0 | I²C Serial Interface | 2-wire bus (≤100 kHz) for full configuration of gain, offset, clamp, PLL, and sync parameters. |
| REF BYPASS, MIDSCV, FILT | Analog Reference & Filter Nodes | Require 0.1 µF bypass capacitors; FILT connects external RC filter for PLL stability per Figure 6. |
| VD, VDD, PVD, GND | Power & Ground | Separate analog (VD), digital output (VDD), and PLL (PVD) supplies minimize noise coupling; 20+ GND pins ensure low-impedance return paths. |
Key Features
| Feature | Design Value |
|---|---|
| Triple 8-bit ADC with 140 MSPS | Enables simultaneous digitization of R/G/B channels at resolutions up to SXGA without time interleaving artifacts. |
| On-chip PLL with COAST mode | Maintains stable pixel clock during HSYNC dropout (e.g., vertical blanking), preventing display flicker or loss of sync lock. |
| Programmable clamp & midscale reference | Supports both ground-referenced (RGB) and mid-level (YUV) clamping via MIDSCV pin and register-controlled selection. |
| Full sync processing engine | Handles composite sync, sync-on-green, and separate H/V sync with programmable polarity, duration, and phase alignment. |
| 2-wire serial configuration | Allows real-time tuning of gain, offset, sampling phase, and sync parameters without hardware changes or reset cycles. |
Applications
| RGB Graphics Capture | Sync-on-Green Processing |
|---|---|
Use Scenario: Digitizing analog VGA output from PCs or workstations into digital display pipelines. IC Role / Device Role / Timing Role: Front-end ADC capturing R/G/B signals at up to 140 MSPS while generating aligned DATACK and HSOUT for downstream FIFO or scaler ICs. Use Value: Eliminates need for external clock generators or sync separators; supports hot-plug detection via sync detect logic. |
Use Scenario: Processing DVI-I or legacy analog signals where sync is embedded in the green channel. IC Role / Device Role / Timing Role: SOGIN comparator with 10 mV-step programmable threshold extracts sync pulses; SOGOUT delivers clean digital sync for separation. Use Value: Reduces component count vs. discrete sync stripper solutions; avoids false triggering via adaptive threshold calibration. |
| LCD Monitor Interface | Digital TV Signal Acquisition |
Use Scenario: Converting analog RGBHV signals from set-top boxes or media players into digital LVDS or OpenLDI streams. IC Role / Device Role / Timing Role: Provides pixel-accurate sampling with phase-adjustable DATACK, enabling precise timing alignment to panel controller requirements. Use Value: Enables sub-pixel timing margin control; supports dynamic phase tuning to compensate for trace skew or temperature drift. |
Use Scenario: Capturing broadcast-quality analog component video (YPbPr) or RGB for upscaling and format conversion. IC Role / Device Role / Timing Role: Triple ADC with 300 MHz bandwidth preserves chroma detail; 4:2:2 output mode reduces data bus width for ASIC/FPGA integration. Use Value: Maintains >43 dB SNR at 40.7 MHz input, ensuring minimal quantization noise in high-definition content. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog video interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9884AKSTZ-140 | 10-bit resolution, same 140 MSPS rate, enhanced SNR (48 dB), integrated HDCP key storage. | Targeted at premium digital TVs and secure display systems requiring higher fidelity and content protection. | Select when >8-bit color depth or HDCP compliance is mandatory; not drop-in due to different register map and power sequencing. |
| THS8200IPHP | Triple 10-bit ADC, 165 MSPS max, integrated genlock PLL, no COAST mode, 1.8 V I/O compatible. | Optimized for broadcast equipment and professional video gear requiring genlock synchronization and lower voltage logic. | Choose for higher sampling rates or genlock capability; requires redesign of serial interface and power delivery due to dual-supply architecture. |
Compared with AD9883AKSTZ-140, AD9884AKSTZ-140 provides superior dynamic range but adds complexity and cost, while THS8200IPHP offers higher speed and genlock at the expense of COAST functionality and simplified sync processing-making AD9883AKSTZ-140 optimal for cost-sensitive, high-volume flat-panel monitor designs.
Availability
AD9883AKSTZ-140 is available at Aetrix Electronics and suitable for LCD monitor manufacturing, digital projector development, and digital TV signal acquisition requiring stable component supply across commercial temperature grades.
Supply support for AD9883AKSTZ-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 AD9883A product line was designed specifically for analog video digitization in flat-panel display interfaces, emphasizing integration of ADC, PLL, sync processing, and programmability in a single monolithic CMOS IC.
FAQ
What is the maximum pixel clock frequency supported by the AD9883AKSTZ-140?
The AD9883AKSTZ-140 supports a maximum PLL clock rate of 140 MHz, enabling pixel rates up to 140 MSPS. This allows it to handle SXGA (1280 × 1024) at 75 Hz and UXGA (1600 × 1200) at 60 Hz. The PLL's minimum output is 12 MHz, covering VGA through WUXGA resolutions. The AD9883AKSTZ-140 achieves 500 ps p-p jitter at full 140 MSPS operation, ensuring reliable sampling timing.
Does the AD9883AKSTZ-140 support sync-on-green (SOG) input processing?
Yes, the AD9883AKSTZ-140 includes dedicated SOGIN and SOGOUT pins for sync-on-green processing. SOGIN connects to an internal high-speed comparator with programmable 10 mV-step threshold (10–330 mV above negative peak). SOGOUT delivers either the sliced sync signal or a delayed HSYNC, enabling direct integration with SOG-based video sources like DVI-I or legacy graphics cards without external circuitry.
Can the AD9883AKSTZ-140 operate with a 2.5 V digital I/O supply?
Yes, the AD9883AKSTZ-140's VDD pins support 2.5 V to 3.3 V operation, allowing direct interfacing with 2.5 V FPGAs or display controllers. All digital outputs (RED/GREEN/BLUE, DATACK, HSOUT, etc.) are three-state CMOS and fully specified down to 2.5 V. Input pins (SDA, SCL, A0, HSYNC, etc.) remain 5 V tolerant regardless of VDD level, simplifying mixed-voltage system design.
How does the COAST function improve reliability in display systems?
The COAST input on the AD9883AKSTZ-140 allows the internal PLL to maintain its current pixel clock frequency and phase when HSYNC is absent-such as during vertical blanking intervals or source transitions. This prevents display flicker, frame tearing, or loss of lock that would occur if the PLL attempted to reacquire sync mid-frame. COAST is enabled via register control and asserted externally, making AD9883AKSTZ-140 robust for PC graphics and variable-format video sources.
What is the purpose of the MIDSCV pin on the AD9883AKSTZ-140?
The MIDSCV pin on the AD9883AKSTZ-140 provides the internal midscale reference voltage (~0.625 V) used for YUV or sync-on-green clamping modes. When midscale clamping is selected per-channel via register 10H bits 0–2, the ADCs clamp to code 80H instead of 00H. MIDSCV must be bypassed to GND with a 0.1 µF capacitor-even when unused-to stabilize the internal reference and ensure consistent DC restoration accuracy across all operating conditions.
AD9883AKSTZ-140 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 80-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Displays, Monitors, TV
- Interface:
- Analog
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 80-LQFP (14x14)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
AD9883AKSTZ-140 FAQ
1.How can I place an order for AD9883AKSTZ-140 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9883AKSTZ-140 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD9883AKSTZ-140 reliable?
The price and inventory of AD9883AKSTZ-140 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9883AKSTZ-140 is usually 5 days.
3.What payment methods are accepted for AD9883AKSTZ-140?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9883AKSTZ-140 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9883AKSTZ-140?
AD9883AKSTZ-140 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9883AKSTZ-140 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD9883AKSTZ-140?
For technical support, including AD9883AKSTZ-140 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9883AKSTZ-140 requirements.
6.How does Aetrix verify that AD9883AKSTZ-140 is sourced from the original manufacturer or authorized distributors?
All AD9883AKSTZ-140 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD9883AKSTZ-140 meets industry standards.
7.What is the process for return or replacement of AD9883AKSTZ-140?
All AD9883AKSTZ-140 units undergo pre-shipment inspection (PSI). If there is an issue with AD9883AKSTZ-140, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD9883AKSTZ-140 part is unused and in its original packaging.
Return procedure for AD9883AKSTZ-140:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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