TZA1026T/V2,118

Specialized ICS Overview

The TZA1026T/V2,118 is a data amplifier and laser supply circuit designed for voltage output mechanisms in automotive CD audio and video optical systems. It integrates an RF amplifier and an Automatic Laser Power Control (ALPC) circuit to interface with digital signal processors like the SAA7326. The device supports data rates up to n=4 times speed, featuring programmable RF gain and adjustable equalizers for n=1 or n=2 speeds. It includes a separate laser supply voltage connection for power efficiency and protection against laser damage from supply dips. Operating within a wide temperature range of -40°C to +85°C, it ensures stable performance in automotive environments.

Specialized ICS Feature Summary

• Integrated RF amplifier supporting data rates up to n=4 times speed with programmable gain for CD-A/V and CD-R/W discs
• Automatic Laser Power Control (ALPC) with stabilization, monitor diode selection, and protection against supply voltage dips
• Adjustable equalizer for n=1 and n=2 times speed operation
• Wide supply voltage range (2.7 V to 5.5 V) and low quiescent current (40 µA in standby)

Specialized ICS Applications

• Automotive CD audio systems
• Automotive CD video systems
• CD-Read/Write (CD-R/W) optical drives

Specialized ICS Procurement Notes

Verify the package type matches the required design constraints. The TZA1026T variant utilizes a 14-SOIC plastic small outline package (SOT108-1). Confirm that the ordering suffix /V2,118 corresponds to the Tape & Reel packaging format as indicated in the product parameters. Ensure compatibility with the target system's voltage levels and thermal requirements before procurement.

Specialized ICS Selection Notes

Select this component for applications requiring a dedicated data amplifier and laser driver for voltage output optical pickups. The TZA1026 is optimized for use with Philips' CD10Auto digital signal processor (SAA7326). Consider the external resistor requirements for setting RF gain and ALPC loop characteristics. Ensure the application diagram matches the coupling method (AC or DC) to determine the minimum required supply voltage.

Specialized ICS Part Context

The TZA1026 is part of the ADALASAuto family, specifically engineered for automotive optical storage solutions. Originally developed by Philips Semiconductors, it serves as a bridge between the optical pickup unit and the digital signal processor. The 'T' suffix denotes the SO14 surface-mount package, while '/V2,118' indicates specific manufacturing and packaging details consistent with NXP's standard designation practices for this legacy automotive IC.

Specialized ICS Replacement Considerations

No direct public substitute part numbers are documented for the TZA1026T/V2,118. As a specialized legacy component for CD optical systems, replacement requires evaluating functional equivalents that match the RF amplifier specifications, ALPC capabilities, and pinout configuration of the 14-SOIC package.