Texas Instruments CC2591RGVRG4

Overview

CC2591RGVRG4 from Texas Instruments is a 2.4-GHz RF front-end IC integrating PA, LNA, T/R switch, balun, and matching network in a single QFN-16 package. It delivers up to 22 dBm output power, 4.8-dB noise figure (high-gain mode), and supports 2–3.6 V operation for IEEE 802.15.4/ZigBee® systems requiring extended range and improved receiver sensitivity.

For engineers reviewing the CC2591RGVRG4 datasheet, CC2591RGVRG4 pinout, CC2591RGVRG4 application, or CC2591RGVRG4 equivalent, key selection considerations include its dual-mode LNA gain control (HGM pin), 100-nA power-down current, seamless interface with TI CC24xx/CC25xx/CC2520 transceivers, and integrated RF path simplification for compact 2.4-GHz ISM band designs.

Technical Context

The CC2591RGVRG4 implements a fully integrated RF signal chain: a high-efficiency Class AB PA with 22 dB gain and 34% PAE at 3 V, paired with a low-noise LNA offering 11 dB gain and 4.8 dB NF in high-gain mode. Its internal T/R switch enables bidirectional operation between transceiver RF_P/RF_N pins and antenna port.

Control logic uses four digital inputs-PAEN, EN, HGM, and RXTX-to configure power-down, TX, RX high-gain, and RX low-gain modes. The device operates across –40°C to 85°C and supports input RF levels up to 10 dBm without damage, with thermal resistance R_ΘJA = 41.9°C/W in its RGV package.

Key Specifications

Pinout & Package

CC2591RGVRG4 uses a RoHS-compliant 4.00 mm × 4.00 mm VQFN-16 (RGV) package with exposed thermal pad requiring solid ground connection per TI reference layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2.4-GHz RF front-end applications.

Compared with SX1211I062 and SKY65111-348LF, CC2591RGVRG4 uniquely integrates PA, LNA, balun, and matching in a compact 4×4-mm footprint-enabling complete 2.4-GHz front-end functionality with minimal external components and optimal balance of range, sensitivity, and size for ZigBee® and 802.15.4 systems.

Availability

CC2591RGVRG4 is available at Aetrix Electronics and suitable for IEEE 802.15.4 sensor nodes, ZigBee® home automation hubs, and industrial wireless monitors requiring stable component supply, long-term lifecycle support, and consistent RF performance across production batches.

Supply support for CC2591RGVRG4 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

Texas Instruments is a global semiconductor company delivering analog and embedded processing solutions, with leadership in low-power RF, precision analog, and microcontroller technologies.

The CC2591RGVRG4 belongs to TI's 2.4-GHz wireless connectivity product line, designed specifically to extend range and improve link reliability for ZigBee®, Thread, and proprietary 802.15.4-based IoT endpoints and gateways.

FAQ

What is the primary function of CC2591RGVRG4 in a wireless system?

The CC2591RGVRG4 serves as a complete 2.4-GHz RF front-end IC that boosts transmit output power up to 22 dBm and enhances receiver sensitivity via a low-noise LNA with 4.8-dB noise figure. It integrates PA, LNA, T/R switch, balun, and matching network-replacing multiple discrete components in systems based on TI CC24xx/CC25xx/CC2520 transceivers. This makes CC2591RGVRG4 ideal for extending range and improving link budget in ZigBee® and IEEE 802.15.4 applications.

How does the HGM pin affect CC2591RGVRG4 operation?

The HGM (High-Gain Mode) pin on CC2591RGVRG4 selects between two LNA gain states: HGM = 1 enables high-gain mode (11 dB gain, 4.8-dB NF), optimizing sensitivity for weak signals; HGM = 0 enables low-gain mode (1 dB gain), preventing LNA saturation in strong RF environments. This dual-mode capability allows dynamic adaptation to varying signal conditions without changing hardware, and is confirmed in Table 5-2 and Table 5-3 of the CC2591RGVRG4 datasheet for interfacing with CC24xx, CC25xx, and CC2520 devices.

Can CC2591RGVRG4 operate with a 2.0-V supply?

Yes, CC2591RGVRG4 supports a supply voltage range of 2.0 V to 3.6 V across all AVDD pins (AVDD_PA1, AVDD_PA2, AVDD_LNA, AVDD_BIAS), as specified in Section 4.3 (Recommended Operating Conditions). At 2.0 V, output power drops by ≤3.5 dB and receive current remains within spec (3.4 mA typical in HGM mode), enabling compatibility with single-cell alkaline or LiFePO₄ batteries. All electrical characteristics-including gain, NF, and switching times-are validated across this full range.

What is the thermal performance of CC2591RGVRG4 in its RGV package?

CC2591RGVRG4 in the 4×4-mm VQFN-16 (RGV) package has a junction-to-air thermal resistance (R_ΘJA) of 41.9°C/W under natural convection, and junction-to-board (R_ΘJB) of 20.4°C/W. These values assume proper PCB layout: the exposed thermal pad must be connected to a solid ground plane using ≥4 thermal vias, and layer 2 should be a continuous ground plane when mounted on layer 1. Thermal performance directly impacts PA efficiency and long-term reliability-TI recommends following the CC2591EM reference design (SWRU190) for optimal results.

Which transceivers is CC2591RGVRG4 designed to interface with?

CC2591RGVRG4 is explicitly designed for seamless interface with Texas Instruments' 2.4-GHz transceivers: CC2430/CC2431, CC2530/CC2531, CC2520, and CC2500/CC2510/CC2511. Pin compatibility and control logic (e.g., RXTX-driven T/R switching, level-shifted PAEN/EN/HGM inputs) are documented in Tables 5-2 through 5-4 of the CC2591RGVRG4 datasheet. It is not intended for direct use with non-TI transceivers without custom level-shifting and timing validation.