TLC976CDGG

Overview

The TLC976CDGG is a multichip module (MCM) subsystem designed for Charge-Coupled Device (CCD) signal processing. It integrates a correlated double sampler (CDS), automatic gain control (AGC), black level clamp circuit, and a 10-bit analog-to-digital converter (ADC). The device operates with a 5-V analog supply and a 3.3-V digital supply. Key electrical parameters include a maximum conversion rate of 20 MSPS, an AGC gain range of 5 dB to 39 dB, and differential nonlinearity of 0.75 LSB typical. It utilizes a 56-pin TSSOP package.

Feature Summary

• Integrated CDS/AGC with adjustable gain from 5 dB to 39 dB via external voltage
• 10-bit ADC with 20 MSPS sampling rate and 2 Vp-p input range
• Multichip module assembly providing isolation between noisy digital and sensitive analog domains
• Internal reference voltage generator outputting 3.5 V (VRT) and 1.5 V (VRB)

Applications

• PC Camera systems
• Digital Camera systems
• Camcorder CCD interfaces
• CCD Scanner applications

Procurement Notes

Verify the obsolete status of the TLC976CDGG before design implementation. Confirm that the 56-pin TSSOP package dimensions align with current PCB layout constraints. Ensure power supply decoupling meets the specified requirements for the separate analog and digital domains to maintain signal integrity.

Selection Notes

Select this component when interfacing directly with CCD sensors requiring integrated signal conditioning. The MCM architecture reduces substrate noise compared to discrete solutions. Verify compatibility with 3.3-V CMOS digital interfaces and ensure the 5-V analog supply is available within the recommended operating conditions.

Part Context

The TLC976CDGG belongs to the Texas Instruments TLC976 family of CCD signal processors. It combines multiple functions into a single compact package, replacing larger discrete configurations such as two separate 32-pin QFPs. The DGG suffix indicates the 56-pin TSSOP plastic small-outline package with a 0.50 mm pin pitch.

Replacement Considerations

The product is listed as obsolete. No specific replacement part numbers are documented in the provided source material. Designers should consult Texas Instruments for current alternatives or evaluate third-party compatible devices.