Analog Devices Inc. 104130-HMC596LP4

Overview

HMC596LP4 from Analog Devices (formerly Hittite Microwave) is a surface-mount 4×2 RF switch matrix IC designed for satellite LNB, multiswitch, and CATV signal routing in 0.2–3.0 GHz systems. It integrates a CMOS-compatible 4-bit decoder, operates from a single +5 V supply, delivers ≤7.5 dB insertion loss (2.15–3.0 GHz), and achieves ≥40 dB isolation across key bands. Its bi-directional 50/75 Ω compatible architecture supports independent or simultaneous input selection to OP1 and OP2.

For engineers reviewing the HMC596LP4 datasheet, HMC596LP4 pinout, HMC596LP4 application, or HMC596LP4 equivalent, this page provides verified functional context, validated RF performance metrics, confirmed QFN-24 package mapping, and real-world switching behavior - essential for DBS front-end design, cable modem signal path planning, and high-isolation RF multiplexing.

Technical Context

The HMC596LP4 implements a fully decoded 4×2 matrix using internal CMOS logic to drive RF switch elements, enabling independent control of two output paths (OP1, OP2) from four differential-pair inputs (VL, HL, VH, HH). All RF ports are DC-coupled and require external 330 pF DC-blocking capacitors.

It operates with TTL/CMOS-compatible control voltages (0–0.8 V low, +2–+5 V high), draws only 0.4 mA max supply current at +5 V, and maintains stable RF performance across –40°C to +85°C. The device lacks intrinsic OP1–OP2 isolation, requiring external amplifiers when output-to-output crosstalk must be suppressed.

Key Specifications

Pinout & Package

Package: 24-lead 4×4 mm leadless QFN (exposed paddle), RoHS-compliant Sn/Pb finish (MSL1), thermal resistance 325 °C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar RF switch matrix applications.

Compared with HMC596LP4E, the HMC596LP4 offers identical RF performance with Sn/Pb solder compatibility for legacy reflow processes; versus QM11035, it trades 3 dB isolation margin for 30% smaller footprint and lower cost - optimal for consumer LNB and CATV modules where size and manufacturability dominate.

Availability

HMC596LP4 is available at Aetrix Electronics and suitable for DBS LNB assemblies, cable modem signal routing, and cellular band-selection front ends requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for HMC596LP4 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

Analog Devices acquired Hittite Microwave in 2014 and continues its high-frequency RF IC product line, emphasizing precision microwave components for communications infrastructure.

The HMC596LP4 belongs to Hittite's legacy SMT CMOS switch matrix family, engineered specifically for broadband satellite and broadband cable signal routing with integrated decoding and wideband impedance flexibility.

FAQ

What is the operating frequency range of the HMC596LP4?

The HMC596LP4 operates from 0.2 GHz to 3.0 GHz, with characterized insertion loss, isolation, and return loss across three sub-bands (200–950 MHz, 950–2150 MHz, and 2150–3000 MHz). All specifications are measured in a 50 Ω system, and the device supports both 50 Ω and 75 Ω applications without external matching. This makes the HMC596LP4 suitable for DBS LNB, CATV, and cellular front-end use cases spanning UHF through upper L-band.

Does the HMC596LP4 require external DC blocking capacitors?

Yes, the HMC596LP4 requires external DC blocking capacitors on all six RF ports (VL, HL, VH, HH, OP1, OP2), as all RF pins are DC-coupled. The datasheet specifies 330 pF 0402 capacitors for characterization; capacitor value must be selected based on the lowest operating frequency - for 0.2 GHz, a minimum capacitance of ~330 pF ensures <1 Ω reactance. Failure to include these blocks risks DC path disruption and degraded RF match.

Can the HMC596LP4 be used as a 4×4 switch matrix?

Yes, two HMC596LP4 devices can be interconnected to form a 4×4 switch matrix: the VL, HL, VH, and HH inputs of one device are wired directly to the corresponding inputs of the second device. The resulting configuration requires careful impedance control - interconnect traces must be 62.5 Ω, and output loads should be 75 Ω. Note that the HMC596LP4 itself does not provide OP1-to-OP2 isolation, so external amplifiers are recommended on each output path.

What is the supply current consumption of the HMC596LP4 at +5 V?

At Vdd = +5.0 V and TA = +25°C, the HMC596LP4 draws 0.2 mA typical and 0.4 mA maximum supply current. This ultra-low quiescent draw enables use in power-sensitive satellite outdoor units and battery-backed cable gateways. The current remains stable across temperature (–40°C to +85°C) and is independent of RF signal level or switching state - no dynamic current spikes occur during transition.

Is the HMC596LP4 pin-compatible with the HMC596LP4E?

Yes, the HMC596LP4 and HMC596LP4E share identical pinout, package dimensions (4×4 mm QFN-24), electrical specifications, and functional behavior. The only differences are RoHS compliance (matte Sn vs. Sn/Pb finish), MSL rating (both MSL1), and peak reflow temperature (260°C for HMC596LP4E vs. 235°C for HMC596LP4). No PCB layout changes are required when substituting HMC596LP4E for HMC596LP4 in new designs.