Renesas ISL54064IRTZ-T
- Part No.:
- ISL54064IRTZ-T
- Manufacturer:
- Renesas
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
ISL54064IRTZ-T.pdf
- Description:
- IC SW SPST-NCX2 550MOHM 10TDFN
- Quantity:
- Payment:

- Shipping:

Inventory:4,557
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Product details
Overview
ISL54064IRTZ-T from Intersil is a dual SPST analog switch with normally closed (NC) configuration, designed for low-distortion audio signal routing in battery-powered portable systems. It delivers 0.65 Ω typical ON-resistance at 4.3 V supply, −6.5 V negative signal swing capability, and integrated click-and-pop elimination circuitry - enabling clean speaker switching in mobile phones and MP3 players.
For engineers reviewing the ISL54064IRTZ-T datasheet, ISL54064IRTZ-T pinout, ISL54064IRTZ-T application, or ISL54064IRTZ-T equivalent, key selection criteria include guaranteed break-before-make timing, rON matching ≤30 mΩ, THD+N of 0.02% at 32 Ω, and compatibility with 1.8 V logic on a +1.8 V to +6.5 V single supply.
Technical Context
The ISL54064IRTZ-T implements a dual-channel, bidirectional CMOS analog switch architecture with independent digital control inputs (IN1/IN2) driving two normally closed (NC1/NC2) switches referenced to common pins (COM1/COM2). Its internal level-shifting logic ensures 1.8 V logic compatibility across the full 1.8–6.5 V supply range.
Integrated click-and-pop suppression operates via controlled voltage ramping at switch transitions, verified per Figure 7B test circuit with 220 µF capacitors and 200 ms delay. The device guarantees break-before-make operation and supports analog signals from (V+ − 6.5 V) to V+, enabling true rail-to-rail and sub-ground signal handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPST, normally closed (NC) configuration - each channel conducts when INx = logic low (≤0.5 V) |
| ON-Resistance (rON) | 0.65 Ω typical at V+ = 4.3 V - enables <0.01 dB insertion loss in 32 Ω audio paths |
| Signal Swing Range | −6.5 V below V+ to V+ - supports ±3.8 V analog swing at 2.7 V supply, critical for headphone DAC outputs |
| THD+N | 0.02% at 20 Hz–20 kHz, 32 Ω load - meets high-fidelity audio requirements without external filtering |
| Switching Speeds | tON = 43 ns / tOFF = 23 ns at V+ = 4.3 V - ensures minimal transient artifacts during fast channel selection |
| Power Supply | +1.8 V to +6.5 V single supply - eliminates need for dual-rail supplies in portable designs |
| Logic Compatibility | 1.8 V CMOS input thresholds (VINH ≥ 1.4 V, VINL ≤ 0.5 V at 3 V supply) - interoperable with baseband processors and PMICs |
Pinout & Package
ISL54064IRTZ-T is packaged in a 10-lead 3 mm × 3 mm TDFN (Pb-free, RoHS-compliant) with exposed thermal pad tied to GND. Pin 1 is top-left corner marked by dot or beveled edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply | Accepts +1.8 V to +6.5 V; requires local 0.1 µF decoupling to GND for stable switching performance |
| GND | Ground reference | Return path for analog and digital domains; must connect to exposed paddle for thermal and EMI integrity |
| IN1, IN2 | Digital control inputs | Active-low logic: NCx connects to COMx when INx = logic low (≤0.5 V); no pull-up required |
| COM1, COM2 | Analog common terminals | Signal hub for each switch; bidirectional current path up to ±300 mA continuous |
| NC1, NC2 | Normally closed analog terminals | Conduct to COMx when INx = low; open when INx = high - used for default-path audio routing |
| N.C. | No-connect terminal | Internally unconnected; must remain floating - not for grounding or bypassing |
Key Features
| Feature | Design Value |
|---|---|
| Negative signal swing support | Enables analog signals down to (V+ − 6.5 V), e.g., −3.8 V at 2.7 V supply - essential for AC-coupled audio interfaces |
| Click-and-pop elimination | On-chip circuitry reduces audible transients during speaker activation/deactivation - eliminates need for external mute sequencing |
| rON matching & flatness | ≤30 mΩ channel-to-channel rON mismatch and ≤0.5 Ω rON flatness over full signal range - preserves stereo balance and linearity |
| Guaranteed break-before-make | Prevents momentary shorting between channels during state transitions - protects downstream amplifiers and DACs |
| Low leakage & high isolation | COM ON leakage ≤0.7 µA and OFF-isolation ≥60 dB at 100 kHz - minimizes crosstalk and DC offset in multi-channel systems |
Applications
| Mobile Audio Routing | Portable Medical Sensors |
|---|---|
Use Scenario: Switching between earpiece, loudspeaker, and headset outputs in smartphones under dynamic power management. IC Role / Device Role / Timing Role: Dual NC switch provides default-conductive path to speaker; INx controls mute state with sub-50 ns timing precision. Use Value: Eliminates mechanical relay wear and click noise during call handover, while supporting 1.8 V baseband logic without level shifters. |
Use Scenario: Multiplexing biopotential signals (ECG, EEG) into a single ADC channel in handheld diagnostic devices. IC Role / Device Role / Timing Role: NC configuration maintains default sensor connection; fast tOFF (23 ns) enables precise sampling window control. Use Value: Sub-ohm rON and <0.02% THD+N preserve microvolt-level signal fidelity; negative swing handles electrode DC offsets. |
| USB-C Audio Adapters | Wearable Audio Amplifiers |
Use Scenario: Managing analog audio paths (TRRS detection, mic/speaker routing) in compact USB-C dongles with tight board space. IC Role / Device Role / Timing Role: Dual NC switch routes default audio path; tiny 3 mm × 3 mm TDFN footprint saves >40% area vs SOIC alternatives. Use Value: Integrated click-and-pop suppression removes need for external RC mute networks, reducing BOM count and PCB layers. |
Use Scenario: Enabling/disabling speaker drivers in hearables to extend battery life during standby without audible pop. IC Role / Device Role / Timing Role: NC switch keeps driver enabled by default; INx asserts high to disconnect during sleep mode. Use Value: 20 nA quiescent current at 1.8 V supply minimizes system standby drain; −6.5 V swing accommodates Class-D amplifier output rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TS5A23157DCUR | SPST NO configuration (not NC); 0.9 Ω rON at 3 V; no integrated click/pop suppression | Requires external mute sequencing for speaker switching; suitable for non-audio signal routing only | Select when NC functionality is unnecessary and cost is primary; verify external pop mitigation is implemented |
| Analog Devices ADG884BRMZ | Dual SPST NO/NC configurable; 0.55 Ω rON at 3 V; no dedicated click/pop circuitry | Supports flexible topology but lacks on-chip audio transient suppression - demands careful layout and timing control | Choose for mixed-signal multiplexing where NC/NO flexibility matters more than autonomous pop elimination |
Compared with TS5A23157DCUR and ADG884BRMZ, the ISL54064IRTZ-T uniquely combines NC topology, sub-ohm rON, and hardware-based click-and-pop elimination - reducing firmware complexity and PCB area in portable audio systems.
Availability
ISL54064IRTZ-T is available at Aetrix Electronics and suitable for mobile audio routing, portable medical sensors, and USB-C audio adapters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL54064IRTZ-T 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 Corporation (now part of Renesas Electronics) is a semiconductor manufacturer specializing in precision analog, power management, and interface ICs for industrial, computing, and consumer applications.
The ISL54064IRTZ-T belongs to Intersil's low-voltage analog switch product line, engineered specifically for high-fidelity, low-power audio signal routing in space-constrained portable electronics.
FAQ
What is the default state of the ISL54064IRTZ-T switches?
The ISL54064IRTZ-T features two normally closed (NC) SPST switches. When IN1 and IN2 are at logic low (≤0.5 V), NC1 and NC2 conduct to COM1 and COM2 respectively. This default-conductive state ensures fail-safe audio path continuity in portable devices - a key distinction from the NO-configured ISL54063. The ISL54064IRTZ-T remains in this NC state until actively disabled by a logic-high control signal.
Does the ISL54064IRTZ-T require external components for click-and-pop suppression?
No. The ISL54064IRTZ-T integrates dedicated click-and-pop elimination circuitry that operates autonomously using internal timing and voltage ramping - as validated in Figure 7B of the FN6582 datasheet. Unlike discrete solutions requiring external RC networks or processor-driven mute sequences, the ISL54064IRTZ-T achieves clean speaker switching with no additional components, reducing BOM count and layout complexity.
Can the ISL54064IRTZ-T operate with a 1.8 V supply and still drive audio loads?
Yes. The ISL54064IRTZ-T is fully specified down to +1.8 V supply, delivering 1.87 Ω typical rON and 0.04% THD+N at 20 Hz–20 kHz into 32 Ω. While rON increases versus higher supplies, its 1.8 V logic compatibility and sub-ground signal swing (down to −4.7 V) make it viable for ultra-low-power headphone amplifiers and wearables where supply headroom is constrained.
What is the maximum analog signal voltage the ISL54064IRTZ-T can handle?
The ISL54064IRTZ-T supports analog signals from (V+ − 6.5 V) to V+. At V+ = 5 V, this translates to −1.5 V to +5 V; at V+ = 2.7 V, it spans −3.8 V to +2.7 V. This extended negative swing is achieved via internal charge-pump-assisted biasing and is critical for interfacing with AC-coupled audio codecs and op-amp outputs without external level-shifting circuitry.
Is the ISL54064IRTZ-T pin-compatible with other devices in the ISL5406x family?
Yes - the ISL54064IRTZ-T shares identical 10-lead TDFN pinout and package dimensions with the ISL54063IRTZ-T, differing only in internal switch configuration (NC vs NO). This allows direct PCB reuse across designs requiring either default-on or default-off behavior, provided firmware logic is updated to match the inverted control polarity of the NC topology.
ISL54064IRTZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 550mOhm (Typ)
- Channel-to-Channel Matching (ΔRon):
- 15mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 6.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 35ns, 10ns
- -3db Bandwidth:
- 60MHz
- Charge Injection:
- 170pC
- Channel Capacitance (CS(off), CD(off)):
- 36pF
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -75dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
ISL54064IRTZ-T FAQ
1.How can I place an order for ISL54064IRTZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54064IRTZ-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL54064IRTZ-T reliable?
The price and inventory of ISL54064IRTZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54064IRTZ-T is usually 5 days.
3.What payment methods are accepted for ISL54064IRTZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54064IRTZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54064IRTZ-T?
ISL54064IRTZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54064IRTZ-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL54064IRTZ-T?
For technical support, including ISL54064IRTZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54064IRTZ-T requirements.
6.How does Aetrix verify that ISL54064IRTZ-T is sourced from the original manufacturer or authorized distributors?
All ISL54064IRTZ-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL54064IRTZ-T meets industry standards.
7.What is the process for return or replacement of ISL54064IRTZ-T?
All ISL54064IRTZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL54064IRTZ-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL54064IRTZ-T part is unused and in its original packaging.
Return procedure for ISL54064IRTZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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