My Inquiry
My Account
Texas Instruments TRF1115IRGPR
- Part No.:
- TRF1115IRGPR
- Manufacturer:
- Texas Instruments
- Category:
- RF Mixers
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
TRF1115IRGPR.pdf
- Description:
- IC MIXER 2.5GHZ DOWN CONV 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,448
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TRF1115IRGPR from Texas Instruments is a 2.5-GHz high-dynamic-range RF down-converter IC designed for first-stage frequency conversion in MMDS/WCS/802.16x receivers. It integrates LNA, differential mixer, LO buffer, VGA, and on-chip balun; delivers 18 dB typical gain, 3 dB noise figure, and 0 dBm IIP3 across 2300–2700 MHz RF input range; used to convert RF signals to 420–480 MHz IF with external SAW filtering.
For engineers reviewing the TRF1115IRGPR datasheet, TRF1115IRGPR pinout, TRF1115IRGPR application, or TRF1115IRGPR equivalent, key selection criteria include its differential RF/LO/IF interfaces, 10 dB analog gain control range, 5 V supply operation, thermal performance via exposed thermal pad, and compatibility with TI's TRF1112 second-stage converter.
Technical Context
The TRF1115IRGPR implements a direct-conversion receiver signal chain with integrated low-noise amplifier, image-reject-capable differential mixer, and variable-gain IF amplifier. Its architecture includes on-chip balun for RF-to-differential conversion and provisions for external bandpass filtering to enhance image rejection.
It operates with differential 100 Ω LO input (requiring 3 dBm drive), differential 50 Ω RF input, and differential 100 Ω IF output. Gain control is implemented via analog voltage (0–1.5 V) applied to RFAGC pin, enabling 10 dB of linear gain adjustment while maintaining stable noise and linearity trade-offs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 2300–2700 MHz - supports full MMDS/WCS licensed band without tuning. |
| IF Output Frequency | 400–500 MHz - delivers differential IF output compatible with standard SAW filters and TRF1112 input. |
| Gain | 18 dB typical at VC = 0 V - provides sufficient first-stage gain to overcome SAW filter loss and second-stage noise figure. |
| Noise Figure | 3 dB typical (high gain mode) - enables high sensitivity in weak-signal reception scenarios. |
| IIP3 | 0 dBm typical (high gain mode) - ensures robust operation in presence of strong adjacent-channel interferers. |
| Supply Voltage | 5.0 V ±5% - single-rail operation simplifies power design; total IDD = 180 mA typical. |
| LO Input Power | 3 dBm referenced to 100 Ω differential - matches standard LO synthesizer output levels without external amplification. |
Pinout & Package
TRF1115IRGPR uses a 4 mm × 4 mm, 20-pin QFN package (RGP drawing) with exposed thermal pad on underside requiring PCB grounding for thermal and RF performance. Pin numbering follows standard top-view orientation with Pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 6, 12, 15, 19 | GND | Analog ground connections; multiple pins reduce impedance and improve RF stability. |
| 3 | LNAO | LNA output node; provides DC bias to external FET stage and connects to mixer input. |
| 4 | RES | Reserved - no connection required; internal bias only. |
| 5 | LOB | LO buffer bias node - internal 3.0–3.2 V; must remain floating for proper operation. |
| 7, 8 | LOP / LON | Differential LO inputs - ac-coupled internally; require external matching for >–12 dB return loss. |
| 9, 10 | VDD | Separate +5 V supplies for LO buffer and IF amplifier sections - enables independent decoupling. |
| 11 | IFB | IF circuit bias node - internal 2.8–3.0 V; must remain floating. |
| 13, 14 | IFON / IFOP | Differential IF outputs - provide dc bias to external IF amplifier; require 100 Ω termination. |
| 16 | RFAGC | Analog gain control input - 0–1.5 V sets gain from max (18 dB) to min (8 dB). |
| 17 | MXRPB | Mixer bias node - internal 1.8–2.5 V; must remain floating. |
| 18 | MXRI | RF mixer input - ac-coupled, 50 Ω differential interface to LNAO path. |
| 20 | RXI | RF input - ac-coupled, 50 Ω differential; primary antenna-side interface. |
Key Features
| Feature | Design Value |
|---|---|
| Differential RF/LO/IF interfaces | Reduces common-mode noise and improves EMI immunity in dense RF layouts. |
| Integrated on-chip balun | Converts single-ended RF input to differential signal pre-mixer, eliminating external balun component. |
| External image-reject filter port | Enables insertion of off-chip BPF between LNA and mixer for >45 dB image rejection. |
| 10 dB analog gain control range | Allows dynamic range optimization across varying signal conditions without digital control overhead. |
| Thermally enhanced QFN package | Exposed metal pad with 16 thermal vias achieves θJC = 9.1°C/W for reliable 1.1 W dissipation. |
Applications
| MMDS Subscriber Unit Receiver | WCS Base Station Front-End |
|---|---|
|
Use Scenario: Fixed wireless broadband receiver operating in 2.5 GHz licensed band with high adjacent-channel interference. IC Role / Device Role / Timing Role: First-stage down-converter performing RF-to-IF translation with image rejection and AGC support. Use Value: 3 dB NF and 0 dBm IIP3 enable reception of weak signals under strong interferer conditions typical in urban deployments. |
Use Scenario: Outdoor base station front-end requiring high linearity and thermal stability in uncontrolled environments. IC Role / Device Role / Timing Role: High-dynamic-range RF receiver front-end IC handling 2300–2700 MHz uplink signals. Use Value: Differential architecture and thermal pad design sustain 180 mA current draw at 85°C ambient without derating. |
| 802.16d/e WiMAX CPE | Point-to-Multipoint Radio Link |
|
Use Scenario: Customer-premises equipment for fixed WiMAX networks needing compact, integrated RF solution. IC Role / Device Role / Timing Role: Single-chip RF down-converter providing LNA, mixer, LO buffer, and IF gain in one package. Use Value: 4 mm × 4 mm QFN footprint reduces board area versus discrete solutions while maintaining 18 dB system gain. |
Use Scenario: Licensed 2.5 GHz point-to-multipoint backhaul link with stringent phase noise and isolation requirements. IC Role / Device Role / Timing Role: Primary RF receiver IC delivering >45 dB RF-to-IF isolation and <–45 dBm LO leakage. Use Value: Differential LO and RF paths suppress spurious mixing products critical for multi-carrier operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF down-converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2769CTJ+ | Single-supply 3.3 V operation; integrated crystal oscillator; lower IIP3 (–6 dBm); 16-QFN package. | Targeted at GPS/GNSS receivers (1.575 GHz), not 2.5 GHz MMDS/WCS bands. | Select when designing compact GNSS front-ends with integrated clocking and lower power budget. |
| ADL5360ACPZ-R7 | 5 GHz RF range; higher P1dB (–1 dBm); requires external LO; 24-LFCSP package; no integrated LNA. | Used in wideband test equipment and military comms where frequency agility >2.7 GHz is required. | Select when extending beyond 2.7 GHz or when external LNA optimization is preferred over integration. |
Compared with MAX2769CTJ+ and ADL5360ACPZ-R7, the TRF1115IRGPR uniquely combines 2.3–2.7 GHz coverage, integrated LNA/mixer/VGA/balun, and 5 V operation optimized for MMDS/WCS infrastructure - making it non-interchangeable without RF redesign.
Availability
TRF1115IRGPR is available at Aetrix Electronics and suitable for MMDS subscriber units, WCS base stations, 802.16 WiMAX CPE, and point-to-multipoint radio links requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for TRF1115IRGPR 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.
The TRF1115IRGPR belongs to TI's TRF RF front-end ASIC family, developed specifically for broadband wireless infrastructure applications including MMDS, WCS, and early WiMAX systems requiring high linearity and integrated down-conversion.
FAQ
What is the recommended LO drive level for TRF1115IRGPR?
The TRF1115IRGPR requires a differential LO input power of 3 dBm, referenced to 100 Ω. This level ensures optimal mixer conversion gain and linearity while minimizing LO-induced distortion. Driving below 0 dBm degrades IIP3 by up to 4 dB; exceeding 6 dBm risks increased LO leakage and potential damage. The LO input is ac-coupled internally, so external AC coupling capacitors are not needed.
Does TRF1115IRGPR include an integrated LNA and how is it biased?
Yes, TRF1115IRGPR integrates a low-noise amplifier with 3 dB typical noise figure. The LNA is biased through the LNAO pin (Pin 3), which serves as both output node and DC bias source for external FET stages. A +5 V bias network must be applied externally to LNAO to set correct operating point; no internal LNA bias resistor is present.
Can TRF1115IRGPR operate with a 3.3 V supply instead of 5 V?
No, TRF1115IRGPR is specified only for 5 V operation (4.75–5.25 V). Absolute maximum rating for VDD is +5.5 V, and electrical characteristics such as gain, noise figure, and IIP3 are guaranteed only at 5 V. Attempting 3.3 V operation results in LNA cutoff, LO buffer failure, and undefined IF amplifier behavior - confirmed by TI's DC specifications table.
What is the function of the RES pin (Pin 4) on TRF1115IRGPR?
Pin 4 (RES) is reserved and must be left unconnected. It has no internal function in normal operation and is not tied to any active circuitry. Connecting RES to ground or VDD may disrupt internal biasing and cause unpredictable performance degradation or device malfunction, as explicitly stated in TI's Terminal Functions table.
How does the RFAGC pin (Pin 16) control gain in TRF1115IRGPR?
The RFAGC pin accepts an analog voltage from 0 V to 1.5 V to adjust gain continuously over 10 dB. At 0 V, TRF1115IRGPR delivers maximum gain (~18 dB); at 1.5 V, gain drops to ~8 dB. The control is linear and monotonic, with no hysteresis or step discontinuities. External DAC or potentiometer can directly drive this pin without buffering, as input current remains below 1.2 mA.
TRF1115IRGPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- RF Type:
- -
- Frequency:
- 2.5GHz
- Number of Mixers:
- 1
- Gain:
- 20dB
- Noise Figure:
- -
- Secondary Attributes:
- -
- Current - Supply:
- 180mA
- Voltage - Supply:
- 5V ~ 5.25V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (4x4)
TRF1115IRGPR FAQ
1.How can I place an order for TRF1115IRGPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TRF1115IRGPR 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 TRF1115IRGPR reliable?
The price and inventory of TRF1115IRGPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TRF1115IRGPR is usually 5 days.
3.What payment methods are accepted for TRF1115IRGPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TRF1115IRGPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TRF1115IRGPR?
TRF1115IRGPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TRF1115IRGPR 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 TRF1115IRGPR?
For technical support, including TRF1115IRGPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TRF1115IRGPR requirements.
6.How does Aetrix verify that TRF1115IRGPR is sourced from the original manufacturer or authorized distributors?
All TRF1115IRGPR 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 TRF1115IRGPR meets industry standards.
7.What is the process for return or replacement of TRF1115IRGPR?
All TRF1115IRGPR units undergo pre-shipment inspection (PSI). If there is an issue with TRF1115IRGPR, 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 TRF1115IRGPR part is unused and in its original packaging.
Return procedure for TRF1115IRGPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TRF1115IRGPR Tags
-
MAX2671EUT+T
Analog Devices Inc./Maxim Integrated
-
ADEX-10+
Mini-Circuits
-
ADE-2+
Mini-Circuits
-
ADE-1+
Mini-Circuits
-
LT5560EDD#PBF
Analog Devices Inc.
-
LT5560EDD#TRPBF
Analog Devices Inc.
-
LTC5562IUC#TRPBF
Analog Devices Inc.
-
MAX2681EUT+T
Analog Devices Inc./Maxim Integrated
-
ADE-1ASK+
Mini-Circuits
-
ADE-1L+
Mini-Circuits
-
ADL5350ACPZ-R7
Analog Devices Inc.
-
AD608ARZ-RL
Analog Devices Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
