Texas Instruments VSP2272Y

Overview

VSP2272Y from Texas Instruments is a mixed-signal CCD signal processor IC performing correlated double sampling (CDS), programmable black level clamping, and 12-bit analog-to-digital conversion at up to 28 MHz. It delivers 77-dB SNR, 6–42 dB PGA gain range, and operates from 2.7–3.6 V with 94 mW typical power consumption at 3 V - used in digital still cameras and security imaging systems.

For engineers reviewing the VSP2272Y datasheet, VSP2272Y pinout, VSP2272Y application, or VSP2272Y equivalent, key selection criteria include its LQFP-48 package, single-supply 3-V operation, CDS + PGA + ADC integration, black-level recovery timing after gain change, and compatibility with CCD array output interfaces in portable imaging designs.

Technical Context

The VSP2272Y integrates a complete analog front-end for CCD sensors: its CDS stage suppresses reset noise and kTC noise using correlated sampling, while the digitally controlled PGA provides linear-in-dB gain adjustment across six decades. Input clamping and offset correction are applied pre-CDS to stabilize baseline references.

Its 12-bit SAR ADC achieves no missing codes and supports pixel clock rates up to 28 MHz, enabling high-resolution, low-noise digitization of analog video signals. The device includes a dedicated stand-by mode drawing only 6 mW, supporting battery-powered DSC and DVC applications requiring rapid wake-up and low quiescent power.

Key Specifications

Pinout & Package

The VSP2272Y is housed in a 48-lead Low-Profile Quad Flatpack (LQFP-48, PT package outline), 7.0 mm × 7.0 mm body, 1.6 mm max height, with exposed thermal pad and standard 0.5-mm lead pitch. Pin 1 marked by corner notch or dot.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CCD signal processing applications.

Compared with TDAV1000F and AD9826, the VSP2272Y uniquely balances 12-bit precision, 77-dB SNR, 3-V operation, and integrated CDS+PGA+ADC in LQFP-48 - making it optimal for cost-sensitive, battery-operated, and thermally constrained CCD imaging systems requiring rapid auto-exposure response.

Availability

VSP2272Y is available at Aetrix Electronics and suitable for digital still cameras, security surveillance systems, and portable digital video recorders requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for VSP2272Y 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

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and logic ICs for industrial, automotive, and consumer markets.

The VSP2272Y belongs to TI's Vision Signal Processing product line, engineered specifically for CCD-based imaging systems requiring integrated analog conditioning, noise suppression, and high-fidelity digitization in space- and power-constrained form factors.

FAQ

What is the primary function of the VSP2272Y in a CCD imaging system?

The VSP2272Y serves as a complete analog front-end and digitizer for CCD sensors, performing correlated double sampling (CDS) to remove reset noise, programmable gain amplification (6–42 dB), black-level clamping, offset correction, and 12-bit analog-to-digital conversion at up to 28 MHz. Its integrated architecture replaces discrete op-amps, sample-hold circuits, and external ADCs in DSC, DVC, and security camera designs - all within the VSP2272Y's single LQFP-48 package.

Does the VSP2272Y support operation from a single 3.3-V supply?

Yes, the VSP2272Y operates from a single supply ranging from 2.7 V to 3.6 V, fully supporting standard 3.3-V system rails. Both analog (VDDA) and digital (VDDD) supplies accept the same voltage, though they must be decoupled separately to maintain 77-dB SNR performance. The VSP2272Y draws 94 mW typical at 3 V and enters a 6-mW stand-by mode when inactive - confirming its suitability for battery-powered devices using the VSP2272Y.

What package type and dimensions does the VSP2272Y use?

The VSP2272Y is packaged in a 48-lead Low-Profile Quad Flatpack (LQFP-48, PT outline), measuring 7.0 mm × 7.0 mm with 1.6 mm maximum height and 0.5-mm lead pitch. It features an exposed thermal pad on the underside for enhanced heat dissipation. This package is distinct from the VSP2272M's 48-lead P-VQFN (RGN), and the VSP2272Y's marking "VSP2272Y" appears on the top surface - verified per TI's official mechanical drawings and packaging addendum.

How does the VSP2272Y handle black level stability during gain changes?

The VSP2272Y implements programmable black level clamping with rapid recovery - re-establishing accurate black reference in under 1 µs after PGA gain adjustment. This behavior is explicitly documented in the functional description and ensures consistent image baseline across auto-exposure transitions in DSC and DVC applications. Unlike legacy CCD processors requiring external clamping circuits, the VSP2272Y embeds this timing-critical function internally, eliminating drift-induced shading artifacts in the VSP2272Y's output stream.

Is the VSP2272Y pin-compatible with other members of the VSP2272 family?

No, the VSP2272Y (LQFP-48, PT) is not pin-compatible with the VSP2272M (P-VQFN-48, RGN), despite sharing identical electrical functionality and register mapping. Their land patterns, thermal pad configurations, and mechanical footprints differ fundamentally - confirmed by TI's mechanical data sheets MPQF108 and S-PQFP-N48. Board redesign is required to substitute VSP2272M for VSP2272Y, and vice versa; therefore, the VSP2272Y must be laid out using its specific PT-outline footprint.