Renesas ISL54062IRTZ

Overview

ISL54062IRTZ from Intersil is a dual SPDT analog switch optimized for audio signal routing in portable battery-powered systems. It delivers sub-ohm ON-resistance (0.57 Ω at 4.3 V), negative signal swing down to 6.5 V below V+, and integrated click-and-pop elimination circuitry - enabling clean audio switching in MP3 players, smartphones, and medical handhelds.

For engineers reviewing the ISL54062IRTZ datasheet, ISL54062IRTZ pinout, ISL54062IRTZ application, or ISL54062IRTZ equivalent, this page provides verified specifications, package mapping to the 10-lead 3×3 mm TDFN, functional truth table, real-world audio use cases, and two validated alternative parts with documented technical and application differences.

Technical Context

The ISL54062IRTZ implements a committed dual SPDT architecture with independent IN1/IN2 control, guaranteeing break-before-make timing (≤22 ns at 4.3 V) and precise channel matching (Δr_ON ≤ 30 mΩ). Its internal level shifters support 1.8 V logic compatibility up to +3 V supply, while dedicated shunt switches on NO/NC pins discharge DC transients via 140 Ω paths to ground.

It operates across +1.8 V to +6.5 V single supply, sustaining full analog signal range (V+ − 6.5 V to V+) and low THD+N (0.02% @ 32 Ω) without rail-to-rail input buffers. The device uses standard CMOS switch cells with ESD diodes tied to ±Rings, requiring V+ sequencing before signal application to avoid forward biasing.

Key Specifications

Pinout & Package

ISL54062IRTZ is packaged in a RoHS-compliant 10-lead 3×3 mm TDFN (Package Drawing L10.3x3A) with exposed thermal pad. Pin 1 is marked by a dot; top-side marking is "4062".

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual SPDT analog switch applications.

Compared with TMUX1574RTER and ADG884BRMZ-REEL7, ISL54062IRTZ uniquely combines negative signal swing, integrated click/pop elimination, and guaranteed break-before-make - making it the only choice for battery-powered audio systems requiring zero-audible-transient switching without external components.

Availability

ISL54062IRTZ is available at Aetrix Electronics and suitable for smartphone audio routing, portable medical monitors, MP3 player line-out multiplexing, and battery-powered test equipment requiring stable component supply across industrial temperature range (−40°C to +85°C).

Supply support for ISL54062IRTZ 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

Intersil (now part of Renesas Electronics) designs high-performance analog ICs for power management, precision signal conditioning, and interface applications.

The ISL54062IRTZ belongs to Intersil's low-voltage analog switch product line, engineered specifically for audio signal integrity and ultra-low-power operation in portable consumer and medical electronics.

FAQ

What is the maximum negative signal voltage supported by the ISL54062IRTZ?

The ISL54062IRTZ supports analog signals down to 6.5 V below the positive supply rail (V+). For example, with V+ = 4.3 V, the minimum allowable signal voltage is −2.2 V. This enables direct interfacing with AC-coupled audio sources that include DC bias, without external level-shifting circuitry. The specification is guaranteed across the full operating temperature range (−40°C to +85°C).

Does the ISL54062IRTZ require external components to eliminate click and pop noise?

No, the ISL54062IRTZ integrates dedicated click-and-pop elimination circuitry with internal shunt switches on both NO and NC pins. These switches activate complementarily to the main switch and connect a ~140 Ω path to ground, discharging transients before they reach the speaker. No external resistors or capacitors are needed - the feature is fully self-contained within the ISL54062IRTZ die.

Is the ISL54062IRTZ pin-compatible with other members of the ISL5406x family?

Yes, the ISL54062IRTZ shares identical pinout and footprint with ISL54062IRUZ (µTQFN variant) and all ISL54062 ordering options. All variants use the same 10-pin configuration (V+, GND, IN1, NO1, COM1, NC1, IN2, NO2, COM2, NC2) and truth table. Mechanical differences exist only in package dimensions (3×3 mm TDFN vs. 1.8×1.4 mm µTQFN), but PCB layout remains interchangeable for the TDFN version.

What is the guaranteed break-before-make time for the ISL54062IRTZ?

The ISL54062IRTZ guarantees a break-before-make time delay (t_D) of ≤22 ns at V+ = 4.5 V, measured under RL = 50 Ω and CL = 35 pF conditions. This parameter is production-tested and ensures no overlap between NC and NO conduction paths during switching - critical for preventing momentary shorts in audio or sensor signal chains. Full-temperature-range compliance is characterized to ≤30 ns at −40°C to +85°C.

Can the ISL54062IRTZ operate from a 1.8 V supply while maintaining audio performance?

Yes, the ISL54062IRTZ is fully specified down to +1.8 V supply. At this voltage, r_ON rises to 1.87 Ω (typ), t_ON increases to 145 ns (typ), and THD+N remains at 0.04% - still sufficient for voice-band and mid-fidelity audio. Its 1.8 V logic compatibility (V_INH ≥ 1.0 V, V_INL ≤ 0.4 V) allows direct interface with ultra-low-power microcontrollers, making ISL54062IRTZ suitable for energy-constrained wearable devices.