TLV990-13PFB

Overview

The TLV990-13PFB is a single-chip CCD analog front-end designed for digital still and PC camera applications. It integrates a correlated double sampler (CDS), a programmable gain amplifier (PGA) with a 0 to 36-dB range, and a 10-bit, 13-MSPS pipeline ADC. The device operates on a single 3-V supply, consuming 150 mW typically at full speed and 2 mW in power-down mode. Key features include automatic optical black level calibration, bad pixel limits, and two internal DACs for offset correction. It utilizes a 48-pin TQFP package and supports serial register configuration via a 3-wire interface.

Feature Summary

• Integrated 10-bit, 13-MSPS pipeline ADC with < ±0.5 LSB DNL and < ±0.9 LSB INL typical errors
• Programmable Gain Amplifier (PGA) offering 0 to 36-dB gain range with 0.045 dB resolution
• Automatic or programmable optical black level and offset calibration using internal digital filters
• Low-power operation: 150 mW typical consumption at 13 MSPS; 2 mW in power-down mode

Applications

• Digital Still Camera systems
• PC Camera modules

Procurement Notes

Verify the specific suffix PFB corresponds to the 48-pin TQFP package variant. Confirm the operating temperature range of –20°C to 75°C matches system requirements. Ensure compatibility with the 3-V analog supply and 1.8-V to 4.4-V digital interface supply specifications during design validation.

Selection Notes

Select this component when a fully integrated CCD signal processor is required for area sensors. The device is suitable for designs needing high-speed digitization (13 MSPS) with low power constraints. Consider the 48-pin TQFP footprint and the need for external decoupling capacitors for the multiple AVDD and DVDD pins during PCB layout.

Part Context

The TLV990-13 is part of Texas Instruments' specialized CCD analog front-end family. It consolidates functions such as CDS, PGA, and ADC into a single CMOS chip, reducing the component count and board space required for CCD-based imaging systems compared to discrete solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.