Texas Instruments VSP2101Y/2K

Overview

VSP2101Y/2K from Texas Instruments (formerly Burr-Brown) is a 10-bit CCD signal processor IC for digital camera front-ends, integrating correlated double sampling (CDS), –2 dB to +34 dB logarithmic gain control, black level clamping, and 27 MHz A/D conversion. It operates from a single 2.7V–3.6V supply, delivers 53 dB SNR, and targets compact imaging systems requiring low power (190 mW at 3.0 V) and precise analog signal conditioning.

For engineers reviewing the VSP2101Y/2K datasheet, VSP2101Y/2K pinout, VSP2101Y/2K application, or VSP2101Y/2K equivalent, this page provides verified technical context, package mapping, real-world timing roles, functional alternatives, and supply-chain support specific to the /2K tape-and-reel variant.

Technical Context

The VSP2101Y/2K implements a three-stage track-and-hold CDS architecture with REFCK/DATCK-synchronized sampling, enabling robust noise rejection in CCD output signals. Its logarithmic voltage-controlled attenuator (VCA) provides linear-in-dB gain ranging and fast 10 µs settling after gain changes.

It integrates dual 10-bit DACs (DAC0 for VCA control, DAC1 for iris or system bias), a fully differential pipelined A/D converter with no missing codes, and two auto-zero loops-dummy pixel (DUMC-triggered) and optical black (OB-triggered)-to maintain DC accuracy across illumination and temperature variations.

Key Specifications

Pinout & Package

The VSP2101Y/2K is housed in a 48-lead LQFP (PT drawing) with exposed pad thermal enhancement and 0.5 mm pitch. Pin assignments are validated per official Burr-Brown PDS-1506B datasheet and TI packaging addendum.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TDA8783HN/N1 and AD9826ASTZ, the VSP2101Y/2K uniquely balances 10-bit fidelity, integrated CDS/clamp/VCA/DACs, and sub-200 mW power in a single LQFP-making it optimal for portable, self-contained CCD camera modules where board space and power efficiency are critical.

Availability

VSP2101Y/2K is available at Aetrix Electronics and suitable for digital still cameras, PC cameras, and security cameras requiring stable component supply, long-lifecycle availability, and tape-and-reel compatibility with automated SMT placement.

Supply support for VSP2101Y/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 acquired Burr-Brown in 2000 and maintains legacy analog signal chain products including precision data converters and imaging ICs.

The VSP2101Y/2K belongs to TI's legacy CCD signal processor family, designed specifically for cost-effective, low-power digital camera modules requiring integrated analog front-end functionality without external support components.

FAQ

What is the function of the OB pin on the VSP2101Y/2K?

The OB (Optical Black) pin on the VSP2101Y/2K is an active-low timing input that triggers the black level auto-zero loop. During the optical black interval, the OB pulse enables correction of output amplifier offset, stabilizing the ADC output at –FS + 32 LSB. This ensures consistent black reference across gain changes and temperature drift-critical for repeatable image quality in the VSP2101Y/2K.

Does the VSP2101Y/2K support 5V logic inputs?

Yes, the VSP2101Y/2K accepts 5V-tolerant logic on REFCK, DATCK, DUMC, OB, PB, PD, SD, SCLK, WRT, and RESET pins. Input high threshold is 2.5 V minimum, and absolute maximum rating allows –0.3 V to +6 V-enabling direct interface with 5V microcontrollers or FPGA I/O without level shifters in the VSP2101Y/2K timing and control paths.

How does the VSP2101Y/2K achieve 53 dB SNR?

The VSP2101Y/2K achieves 53 dB SNR through correlated double sampling (CDS) noise cancellation, fully differential pipelined A/D architecture, on-chip reference generation, and optimized analog layout isolating sensitive nodes. Measured with grounded input capacitance and maximum gain, this SNR reflects true RMS noise performance-not theoretical-validating its suitability for high-fidelity imaging in the VSP2101Y/2K.

What is the purpose of the CCD R pin on the VSP2101Y/2K?

The CCD R pin on the VSP2101Y/2K connects an external capacitor to form the dummy feedback loop for the CDS stage. This capacitor sets the time constant of the dummy pixel auto-zero loop (T = RC/(A·D)), enabling precise offset cancellation during the dummy pixel interval. Its value directly affects CDS stability and low-frequency drift correction in the VSP2101Y/2K.

Can the VSP2101Y/2K operate from a 2.7V supply?

Yes, the VSP2101Y/2K is fully specified for operation from 2.7 V to 3.6 V. At 2.7 V, quiescent current drops to 59 mA and power dissipation is 160 mW-maintaining full functionality including 27 MHz conversion rate, 10-bit linearity, and all timing specifications. This makes the VSP2101Y/2K suitable for battery-powered digital cameras where voltage headroom is constrained.