NXP Semiconductors OM7605/BGA2711

Overview

BGA2711 from NXP Semiconductors is a silicon monolithic microwave integrated circuit (MMIC) wideband amplifier in SOT363 package, internally matched to 50 Ω, delivering 13.1 dB gain at 1 GHz, 4.8 dB noise figure, and 3.6 GHz bandwidth with unconditional stability. It serves as an IF amplifier in LNBs, RF buffer between LNA and mixer, or driver stage before power amplifiers in cable and ISM systems.

For engineers reviewing the BGA2711 datasheet, BGA2711 pinout, BGA2711 application, or BGA2711 equivalent, key selection criteria include its flat gain response across 1–2 GHz, low-noise performance at 1–2 GHz, internal 50 Ω matching eliminating external components, and thermal resistance of 300 K/W for reliable operation in compact RF layouts.

Technical Context

The BGA2711 uses a fully integrated silicon MMIC architecture with on-die matching networks enabling direct 50 Ω interface without external tuning. Its unconditionally stable design (K > 1 up to 3 GHz) eliminates need for stabilization networks across its operating band.

It operates from a single 5 V supply drawing 12.6 mA, supports AC-coupled RF input/output, and requires separate low-inductance ground paths for GND1 (RF output side) and GND2 (RF input side) to maintain isolation and return loss performance (11 dB input, 18 dB output at 1 GHz).

Key Specifications

Pinout & Package

Package: SOT363 - 6-pin plastic surface-mount package (JEDEC SC-88), dimensions 2.2 × 1.35 × 1.15 mm, with exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar wideband MMIC amplifier applications.

Compared with QPL9547 and ERA-3SM+, the BGA2711 offers the lowest component count solution for 1–2 GHz IF amplification due to its internal 50 Ω matching and single-supply simplicity, trading marginal NF and bandwidth for robustness, ease of integration, and proven reliability in cable and satellite infrastructure.

Availability

BGA2711 is available at Aetrix Electronics and suitable for cable TV distribution nodes, satellite LNB modules, ISM-band transmitter drivers, and general-purpose RF test buffers requiring stable component supply and long-term obsolescence management.

Supply support for BGA2711 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

NXP Semiconductors is a global semiconductor company specializing in high-performance RF, analog, and mixed-signal solutions for automotive, industrial, and communications markets.

The BGA2711 belongs to NXP's legacy MMIC amplifier product line, designed specifically for cost-effective, high-yield integration into broadband RF infrastructure where internal matching, unconditional stability, and thermal robustness are critical.

FAQ

What is the recommended supply decoupling for BGA2711?

Use a 22 nF ceramic capacitor placed as close as possible to pin 1 (VS), with short, low-inductance traces to both GND1 (pin 4) and GND2 (pins 2 and 5). This configuration suppresses supply noise and maintains stability across the 0.1–3 GHz band per application note guidance in the BGA2711 datasheet. The BGA2711 exhibits strong sensitivity to supply impedance above 100 MHz, so localized decoupling is mandatory for repeatable gain and noise performance.

Can BGA2711 operate below 100 MHz?

Yes, the BGA2711 functions down to DC, but input/output DC blocking capacitors must exceed 100 pF when operating below 100 MHz to maintain low-frequency gain and return loss. At 10 MHz, ≥1 nF is recommended per application information. The BGA2711's internal matching remains effective, but capacitor value directly impacts low-end bandwidth-undersized caps cause roll-off and mismatch. The BGA2711 does not specify minimum frequency, and scattering data confirms s-parameters down to 100 MHz.

Is BGA2711 pin-compatible with other SOT363 MMICs like BGA2710?

No, BGA2711 is not pin-compatible with BGA2710: BGA2710 uses pins 1=RF in, 2=GND, 3=RF out, 4=GND, 5=VS, 6=GND, whereas BGA2711 assigns pin 1=VS, pin 6=RF in, and separates GND1/GND2 across pins 4 and 2/5. Swapping them causes incorrect biasing and instability. The BGA2711 pinout is unique within its family and must be laid out per Figure 1 in the official datasheet. Always verify pin mapping before PCB design.

What is the maximum RF input power for BGA2711?

The absolute maximum RF input drive is −10 dBm per limiting values table; exceeding this risks parametric shift or permanent damage. For linear operation, keep input below −20 dBm to stay within 1 dB compression (PL₁dB = −0.7 dBm at 1 GHz). The BGA2711's IP3(in) = −4.8 dBm at 1 GHz further defines third-order intermodulation onset. In practice, the BGA2711 is intended for small-signal amplification-not driver or PA stages-so input must remain well below compression thresholds to preserve NF and gain flatness.

Does BGA2711 require external matching components?

No, the BGA2711 is internally matched to 50 Ω at both input and output, eliminating all external matching networks for standard 50 Ω systems. Only AC coupling capacitors (≤100 pF above 100 MHz) and supply decoupling (22 nF) are required. This is confirmed in the "DESCRIPTION" and "APPLICATION INFORMATION" sections of the datasheet. The BGA2711 achieves 11 dB input and 18 dB output return loss at 1 GHz without any external components, validating its self-contained matching architecture.