Texas Instruments VSP3210Y/2K

Overview

VSP3210Y/2K from Texas Instruments is a 16-bit, single-supply (+5V) CCD signal processor for scanner applications, integrating three correlated double samplers (CDS), programmable gain amplifiers (PGA) with 0–13 dB gain, ±500 mV offset control, and demultiplexed or normal digital output modes.

For engineers reviewing the VSP3210Y/2K datasheet, VSP3210Y/2K pinout, VSP3210Y/2K application, or VSP3210Y/2K equivalent, key selection factors include its LQFP-48 package, 8 Msps sampling rate, 16-bit A/D conversion, triple-channel CDS architecture, and compatibility with VSP3100 in demultiplexed mode.

Technical Context

The VSP3210Y/2K implements a fully integrated analog front-end for linear CCD sensors, featuring three independent CDS blocks synchronized to CCD clocking signals (CK1, CK2, CLP) and driven by an on-chip timing generator. It supports simultaneous R/G/B channel processing with per-channel gain and offset registers.

Its 16-bit parallel digital output (B0–B15) operates at +3V or +5V logic levels, selectable via configuration register. Output mode (normal vs. demultiplexed) and channel count (1- or 3-channel CCD mode) are software-configurable through the register port (SCLK/SD/WRT/RD/OE).

Key Specifications

Pinout & Package

LQFP-48 surface-mount package with exposed thermal pad (TI PT package code); RoHS-compliant, MSL-3 rated.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9845BASTZ and VSP3100Y/2K, the VSP3210Y/2K uniquely delivers 16-bit resolution with full on-chip CDS, PGA, timing, and configurable output in a single LQFP-48 package-reducing total system component count by ≥4 ICs in scanner signal chains.

Availability

VSP3210Y/2K is available at Aetrix Electronics and suitable for document scanning, industrial inspection, medical imaging digitization, and barcode reading applications requiring stable component supply and long-term industrial lifecycle support.

Supply support for VSP3210Y/2K 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 leader specializing in analog, embedded processing, and digital signal technologies for industrial, automotive, and communications markets.

The VSP3210Y/2K belongs to TI's Vision Signal Processing product line-designed specifically for high-accuracy, low-noise digitization of optical sensor outputs in professional scanning and imaging equipment.

FAQ

What is the maximum sampling rate supported by the VSP3210Y/2K?

The VSP3210Y/2K supports a maximum sampling rate of 8 Msps per channel. This rate is maintained across all three CDS channels in 3-channel mode and is synchronized to external CK1/CK2/CLP clocks. The 8 Msps capability enables real-time capture of high-resolution linear CCD outputs used in A4 document scanners and industrial inspection lines. VSP3210Y/2K achieves this while maintaining <1 LSB integral nonlinearity at full scale.

Is the VSP3210Y/2K pin-to-pin compatible with the VSP3100Y/2K?

Yes-the VSP3210Y/2K is pin-to-pin compatible with the VSP3100Y/2K only when operated in demultiplexed output mode. In normal output mode, VSP3210Y/2K uses all 16 B0–B15 pins, whereas VSP3100Y/2K outputs only 14 bits. Pin functions for clock inputs (CK1, CK2, CLP), analog inputs (RINP/GINP/BINP), and register interface (SCLK/SD/WRT/RD/OE) remain identical across both devices. VSP3210Y/2K retains full backward compatibility in demux mode.

Does the VSP3210Y/2K require an external reference voltage?

Yes-the VSP3210Y/2K requires an external precision reference applied to REFP and REFN pins to define the full-scale range of its 16-bit ADC. The device does not include an internal reference; typical implementation uses a 2.048 V or 4.096 V low-drift reference IC. Reference stability directly impacts ADC accuracy-TI recommends <10 ppm/°C drift and <10 µV p-p noise for optimal performance. VSP3210Y/2K supports ratiometric operation when paired with matched reference and supply rails.

Can the VSP3210Y/2K operate with a 3.3 V digital interface?

Yes-the VSP3210Y/2K supports +3 V digital I/O logic levels. Its B0–B15 output drivers and register interface pins (SCLK, SD, WRT, RD, OE) are configurable for either +3 V or +5 V operation via internal configuration register settings. When set to +3 V mode, the device meets standard LVCMOS voltage thresholds and interfaces directly with 3.3 V FPGAs and microcontrollers without level shifters. VSP3210Y/2K maintains full timing specifications in both logic-level modes.

What is the purpose of the clamp signal (CLP) input on the VSP3210Y/2K?

The CLP (clamp) input on the VSP3210Y/2K provides the timing reference for correlated double sampling-synchronizing the reset and sample phases of each CDS block to the CCD's horizontal blanking interval. CLP must be aligned with the CCD's clamping pulse to ensure accurate baseline restoration before pixel sampling. Misalignment causes fixed-pattern noise and gain error. VSP3210Y/2K uses CLP to trigger internal sample-and-hold circuits across all three R/G/B CDS paths simultaneously, preserving inter-channel timing integrity critical for color accuracy.