Texas Instruments VSP3200Y

Overview

VSP3200Y from Texas Instruments is a 10-bit CCD signal processor for scanner applications, integrating three correlated double samplers (CDS), programmable gain amplifiers (PGA) with 0–13 dB range, and a 16-bit A/D converter. It operates from a single +5V supply, supports 1- or 3-channel CCD modes at 8 Msps, and delivers ±500 mV offset control in LQFP-48 packaging.

For engineers reviewing the VSP3200Y datasheet, VSP3200Y pinout, VSP3200Y application, or VSP3200Y equivalent, key selection criteria include its triple-CDS architecture, demultiplexed/normal output mode flexibility, +3V/+5V digital output compatibility, and industrial temperature range (0°C to +85°C).

Technical Context

The VSP3200Y implements a fully integrated analog front-end for linear CCD sensors, with three independent CDS blocks each feeding a dedicated PGA and 10-bit DAC-based offset adjustment. Its timing generator provides synchronized clocking for CLP, CK1, CK2, and ADCCK signals required by CCD readout sequences.

Digital interface uses an 16-bit parallel bus (B0–B15) with WRT, RD, OE, and SCLK control lines, supporting register configuration via a serial port. Output mode selection (normal vs. demultiplexed) enables compatibility with downstream logic families requiring either full-width or time-interleaved data streams.

Key Specifications

Pinout & Package

LQFP-48 surface-mount package with exposed thermal pad; 0.5 mm pitch, 7 mm × 7 mm body size.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VSP3200Y, the VSP3210 extends dynamic range while maintaining full software and hardware compatibility, whereas the VSP3100 trades integration for lower unit cost at the expense of external timing circuitry and reduced feature set.

Availability

VSP3200Y is available at Aetrix Electronics and suitable for document scanners, industrial inspection systems, and barcode readers requiring stable component supply despite its obsolete status through controlled legacy sourcing.

Supply support for VSP3200Y 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 founded in 1930, specializing in analog, embedded processing, and silicon technology for industrial, automotive, and communications markets.

The VSP3200Y belongs to TI's Vision Signal Processor product line, designed specifically for high-fidelity CCD and CMOS image sensor interfacing in commercial and industrial scanning equipment.

FAQ

What is the function of the CLP, CK1, and CK2 pins on the VSP3200Y?

The CLP, CK1, and CK2 pins on the VSP3200Y provide critical timing inputs for correlated double sampling: CLP controls the clamping phase, CK1 triggers sample-and-hold for reference level, and CK2 triggers sample-and-hold for signal level. These signals must be externally generated with precise duty cycle and edge alignment to match the CCD's charge transfer timing. The VSP3200Y's internal timing generator does not drive these pins - they are strictly input-only.

Is the VSP3200Y pin-compatible with the VSP3210?

Yes, the VSP3200Y is interface-compatible with the VSP3210, meaning identical pin assignments, register mapping, and control protocol. Both devices share the same LQFP-48 footprint and electrical interface behavior. However, the VSP3210 outputs 16-bit data versus the VSP3200Y's 10-bit internal path with 16-bit bus interface - firmware must handle the extended data width.

Does the VSP3200Y support RGB color separation natively?

Yes, the VSP3200Y supports native RGB color separation via its three independent analog input channels - RINP, GINP, and BINP - each feeding a dedicated CDS and PGA stage. This allows simultaneous processing of red, green, and blue CCD outputs without time-division multiplexing, preserving full spatial alignment and minimizing inter-channel timing skew.

What is the purpose of the TP0 pin on the VSP3200Y?

The TP0 pin on the VSP3200Y is a test point used internally by Texas Instruments for factory calibration and parametric verification. It is not intended for customer use, has no defined electrical specification in the public datasheet, and must remain unconnected in end-application designs. No timing, voltage, or functional behavior is guaranteed for TP0 in operational circuits.

Can the VSP3200Y operate with a 3.3 V digital supply?

No, the VSP3200Y requires a +5 V digital supply for its parallel output bus (B0–B15) and control signals (WRT, RD, OE). While its digital outputs are +3 V / +5 V compatible - meaning they can interface with 3.3 V logic inputs - the device itself must be powered from +5 V. Using 3.3 V on VDD will result in improper operation or failure to initialize.