Skyworks Solutions Inc. ATN3580-07

Overview

ATN3580-07 from Skyworks Solutions is a fixed thin-film silicon attenuator chip with 7 dB nominal attenuation, ±0.25 dB DC tolerance, ±0.2 dB flatness up to 12 GHz, and minimum 15 dB return loss to 40 GHz. It uses a balanced TEE resistive structure, handles 1 W CW incident power, and operates from –55 °C to +150 °C - deployed in RF front-end calibration paths and test instrumentation signal conditioning.

For engineers reviewing the ATN3580-07 datasheet, ATN3580-07 pinout, ATN3580-07 application, or ATN3580-07 equivalent, key selection criteria include broadband flatness stability (±0.2 dB to 12 GHz), high-frequency return loss (≥15 dB to 40 GHz), rugged silicon die construction, RoHS-compliant lead-free packaging, and compatibility with ribbon bonding or die-mount assembly per outline drawing 518-060.

Technical Context

The ATN3580-07 implements a balanced TEE resistive topology on high-resistivity silicon substrate, enabling broadband impedance matching and consistent attenuation across DC–40 GHz. Its thin-film resistor fabrication ensures tighter tolerance control and superior thermal dissipation versus thick-film alternatives.

Electrical performance is specified at 25 °C with guaranteed flatness of ±0.2 dB up to 12 GHz and ±0.3 dB up to 26.5 GHz. Return loss meets ≥15 dB across 0.1–40 GHz, supporting wideband 50 Ω system integration in microwave test and aerospace transceiver modules.

Key Specifications

Pinout & Package

ATN3580-07 is supplied as an unmounted silicon die in outline drawing 518-060 (1.52 mm × 1.52 mm). It features two RF terminals: Input and Output, both designed for 50 Ω system impedance. No internal bias or control pins - fully passive operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed attenuator applications.

Compared with VAT-7W+ and QPA1007, the ATN3580-07 offers tighter flatness (±0.2 dB to 12 GHz), higher CW power handling (1 W), and identical 518-060 die outline - making it optimal for high-reliability, space-constrained RF hybrid assemblies requiring precision broadband attenuation.

Availability

ATN3580-07 is available at Aetrix Electronics and suitable for radar calibration, 5G test instrumentation, avionics transceivers, and automotive radar ECUs requiring stable component supply across extended temperature ranges and high-frequency performance.

Supply support for ATN3580-07 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

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions for wireless, broadband, automotive, and industrial markets.

The ATN3580 series belongs to Skyworks' high-frequency passive components product line, engineered specifically for precision RF attenuation in microwave and millimeter-wave systems where broadband flatness, thermal robustness, and die-level integration are critical.

FAQ

What is the nominal attenuation value and tolerance of the ATN3580-07?

The ATN3580-07 has a nominal attenuation of 7 dB with a DC tolerance of ±0.25 dB, as specified in Table 2 of the Skyworks datasheet. This tolerance applies at 25 °C and ensures predictable signal reduction without post-assembly trimming in most RF gain-control applications.

Does the ATN3580-07 require DC bias or external control signals?

No, the ATN3580-07 is a fully passive fixed attenuator. It contains no active circuitry, requires no DC bias, and operates identically across DC–40 GHz without configuration. The ATN3580-07 functions solely through its balanced TEE thin-film resistor network on silicon.

What is the maximum continuous RF power the ATN3580-07 can handle?

The ATN3580-07 is rated for 1 W of incident RF power at 25 °C, per Table 1 in the Skyworks datasheet. Derating is required above 25 °C ambient; full 1 W operation remains valid up to +85 °C case temperature with appropriate thermal management.

Is the ATN3580-07 compatible with wire bonding or ribbon bonding assembly methods?

Yes, the ATN3580-07 die (outline 518-060) is explicitly supported for ribbon bonding per Figure 4 of the Skyworks datasheet, and also accommodates gold wire bonding using standard RF die-attach processes. Bond pad metallization is optimized for aluminum or gold interconnects.

What is the return loss specification of the ATN3580-07 across its operating frequency range?

The ATN3580-07 guarantees minimum return loss of 15 dB from 0.1 GHz to 40 GHz, as stated in Table 3 of the Skyworks datasheet. This ensures low VSWR and minimal signal reflection in 50 Ω systems, critical for measurement accuracy and cascade stability in multi-stage RF designs.