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Texas Instruments TRF370333IRGER
- Part No.:
- TRF370333IRGER
- Manufacturer:
- Texas Instruments
- Category:
- RF Modulators
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TRF370333IRGER.pdf
- Description:
- RF MODULATOR 400MHZ-4GHZ 24VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,826
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Product details
Overview
TRF370333IRGER from Texas Instruments is a 0.35–4 GHz SiGe direct quadrature modulator with 3.3-V common-mode baseband inputs, −40 dBm unadjusted carrier feedthrough, −40 dBc unadjusted sideband suppression, and 9.5 dBm P1dB output compression point. It serves as the RF upconversion stage in cellular BTS transmit chains, delivering WCDMA-compliant ACPR of −75.8 dBc at −13 dBm output.
For engineers reviewing the TRF370333IRGER datasheet, TRF370333IRGER pinout, TRF370333IRGER application, or TRF370333IRGER equivalent, key selection criteria include I/Q input common-mode voltage (3.3 V), RF output frequency range (350 MHz–4 GHz), unadjusted sideband suppression (−40 dBc), and supply current (210–235 mA at 5 V).
Technical Context
The TRF370333IRGER implements a double-balanced mixer architecture with integrated differential-to-single-ended RF output stage capable of driving 50-Ω loads without external components. Its baseband interface accepts fully differential I/Q signals referenced to 3.3-V DC common-mode voltage, and its LO port supports single-ended 50-Ω input with −5 to +12 dBm drive range.
It operates from a single 4.5–5.5 V supply and features on-chip biasing for stable performance across −40°C to +85°C ambient temperature. The device's RF output block includes an internal amplifier optimized for linearity (OIP3 = 18–21 dBm) and low noise floor (−163 dBm/Hz at 20-MHz offset).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 0.35 GHz to 4 GHz - supports full-band cellular infrastructure operation including GSM, UMTS, TD-SCDMA, and LTE bands. |
| P1dB Output Compression | 9.5 dBm - enables direct drive of power amplifier stages without intermediate gain stages in compact transceiver designs. |
| OIP3 | 18–21 dBm - ensures high linearity for multi-carrier WCDMA and OFDM signals with minimal adjacent-channel interference. |
| Unadjusted Sideband Suppression | −40 dBc - provides baseline image rejection without calibration, reducing system-level tuning complexity. |
| Output Noise Floor | −163 dBm/Hz at 20-MHz offset - meets stringent spectral mask requirements for wideband wireless MAN and cellular base stations. |
| Supply Current | 210–235 mA at 5 V - defines thermal dissipation (RθJA = 29.4°C/W) and PCB copper area requirements for continuous operation. |
| I/Q Input Common-Mode Voltage | 3.3 V - mandates compatibility with 3.3-V DACs (e.g., DAC5687) and eliminates level-shifting circuitry in transmit signal chains. |
Pinout & Package
RGE package: 24-pin QFN, 4 mm × 4 mm, 0.5-mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6, 7, 13, 15 | No Connect | Must be left floating; no internal connection or function. |
| 2, 5, 8, 11, 12, 14, 17, 19, 20, 23 | Ground | Multiple dedicated GND pins ensure low-impedance return paths for RF, LO, and baseband sections to minimize coupling. |
| 3, 4 | LO Input (LOP/LON) | Differential LO port: LOP accepts single-ended 50-Ω source; LON must be terminated to 50 Ω to ground. |
| 9, 10, 21, 22 | Baseband Inputs (BBQN/BBQP/BBIN/BBIP) | Fully differential I/Q inputs with 3.3-V common-mode voltage; require matched amplitude and 90° phase alignment. |
| 16 | RF Output | Single-ended 50-Ω RF output; ac-coupled via 100-pF capacitor; drives spectrum analyzer or PA input directly. |
| 18, 24 | Power Supply (VCC) | Two independent VCC pins reduce supply impedance; require local 0.1-μF + 4.7-μF decoupling per pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF amplifier stage | Eliminates external driver amplifiers, reducing BOM count and board area in compact BTS modules. |
| 3.3-V I/Q common-mode voltage | Direct interface with industry-standard 3.3-V DACs (e.g., TI DAC5687), avoiding level-shifter ICs and associated noise. |
| −163 dBm/Hz output noise floor | Enables clean transmission in wideband systems (e.g., WiMAX, LTE) without violating out-of-band emission limits. |
| 75-dBc WCDMA ACPR at −11-dBm channel power | Meets 3GPP TS 25.104 spectral mask requirements for base station Class A/B linear operation. |
| SiGe process technology | Delivers high fT and low 1/f noise for stable modulation accuracy across temperature and frequency. |
Applications
| Cellular Base Transceiver Station Transmit Channel | WCDMA Wideband Transceiver |
|---|---|
Use Scenario: High-power macrocell BTS transmitting four WCDMA carriers at −23 dBm per carrier in 2100-MHz band. IC Role / Device Role / Timing Role: Direct RF quadrature modulator converting complex baseband I/Q signals to 2140-MHz RF output. Use Value: Achieves −68 dBc ACPR and −47 dBc adjusted sideband suppression after calibration, meeting 3GPP spectral purity requirements. | Use Scenario: Small-cell femtocell supporting single-carrier WCDMA at −13 dBm output with tight EVM budget. IC Role / Device Role / Timing Role: Final-stage modulator in low-power transmit chain with integrated RF buffer. Use Value: Delivers −75.8 dBc ACPR and 0.66% RMS EVM at 0 dBm output, enabling Class A linear operation without digital predistortion. |
| GSM/EDGE Wireless Local Loop | Wireless MAN Wideband Transceiver |
Use Scenario: Fixed wireless access node operating in 900-MHz GSM band with EDGE modulation. IC Role / Device Role / Timing Role: Quadrature modulator generating 8-PSK and GMSK signals for spectrally efficient transmission. Use Value: Provides 0.59% RMS EVM at −5 dBm output and −39 dBc unadjusted sideband suppression, simplifying RF front-end filtering. | Use Scenario: IEEE 802.16e WiMAX base station operating in 3.5-GHz band with 10-MHz channel bandwidth. IC Role / Device Role / Timing Role: Wideband upconverter handling 20-MHz baseband I/Q signals up to 3600-MHz RF. Use Value: Maintains −45 dBc unadjusted sideband suppression and −159.4 dBm/Hz noise floor at 6-MHz offset, preserving signal integrity in OFDMA systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadrature modulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TRF370315IRGER | 1.5-V I/Q common-mode voltage; otherwise identical RF performance and pinout. | Requires 1.5-V DAC interface; unsuitable for 3.3-V signal chain without level shifting. | Select when interfacing with legacy 1.5-V DACs or low-voltage baseband processors. |
| ADL5375-05ACPZ-R7 | 5-GHz max RF frequency; 2.5-V I/Q CM; higher OIP3 (25 dBm); different 24-pin LFCSP footprint. | Supports higher-frequency bands (e.g., 4.9-GHz public safety); requires PCB redesign and new decoupling layout. | Select for 4.5–5.0 GHz operation or when >23 dBm OIP3 is required for high-power PA driver stages. |
Compared with TRF370315IRGER, the TRF370333IRGER eliminates level-shifting circuitry for 3.3-V DACs, reducing component count and noise; compared with ADL5375-05, it offers lower cost and proven WCDMA ACPR performance but lacks support above 4 GHz.
Availability
TRF370333IRGER is available at Aetrix Electronics and suitable for cellular infrastructure, wireless MAN, and broadband fixed-access applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TRF370333IRGER 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 specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.
The TRF3703 family is designed for high-performance RF upconversion in cellular base station and wireless infrastructure applications, emphasizing linearity, spectral purity, and integration to reduce front-end complexity.
FAQ
What is the recommended power supply configuration for TRF370333IRGER?
TRF370333IRGER requires a single 4.5–5.5 V supply applied to both VCC pins (18 and 24), each decoupled with a 0.1-μF ceramic capacitor and a 4.7-μF tantalum capacitor. Total supply current ranges from 210 mA to 235 mA at 25°C. The device's RθJA of 29.4°C/W necessitates adequate copper pour on the PCB thermal pad for reliable operation at 85°C ambient.
Does TRF370333IRGER support differential or single-ended LO input?
TRF370333IRGER accepts a single-ended LO signal on LOP (pin 3), while LON (pin 4) must be terminated to 50 Ω to ground. The datasheet specifies −5 to +12 dBm LO drive level into 50 Ω, with ≥15 dB return loss. Differential LO drive is not supported; using a balun or transformer is unnecessary and not recommended.
What is the baseband input interface requirement for TRF370333IRGER?
TRF370333IRGER requires fully differential I/Q baseband inputs (BBIP/BBIN and BBQP/BBQN) biased at 3.3-V common-mode voltage. Input impedance is 5 kΩ resistance in parallel with 3 pF capacitance per single-ended path. Matching amplitude and precise 90° phase alignment between I and Q paths are essential to achieve specified sideband suppression.
How does TRF370333IRGER perform in WCDMA applications?
TRF370333IRGER delivers −75.8 dBc ACPR for a single WCDMA carrier at −13 dBm output and −68 dBc for four carriers at −23 dBm per carrier (fLO = 2140 MHz). Its −163 dBm/Hz noise floor at 20-MHz offset and 0.74% RMS EVM meet 3GPP TS 25.104 Class A linearity and spectral mask requirements for base station deployment.
Is TRF370333IRGER pin-compatible with TRF370315IRGER?
Yes, TRF370333IRGER and TRF370315IRGER share identical RGE package, pinout, and electrical interface - differing only in specified I/Q common-mode voltage (3.3 V vs. 1.5 V). No PCB changes are required when substituting between them, but baseband driver voltage levels must match the selected variant's CM specification.
TRF370333IRGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Modulator
- LO Frequency:
- 400MHz ~ 4GHz
- RF Frequency:
- 400MHz ~ 4GHz
- P1dB:
- 9.5dBm
- Noise Floor:
- -163dBm/Hz
- Output Power:
- -4.5dBm
- Current - Supply:
- 235 mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Test Frequency:
- 2.14GHz
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (4x4)
TRF370333IRGER FAQ
1.How can I place an order for TRF370333IRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for TRF370333IRGER 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 TRF370333IRGER reliable?
The price and inventory of TRF370333IRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TRF370333IRGER is usually 5 days.
3.What payment methods are accepted for TRF370333IRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TRF370333IRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TRF370333IRGER?
TRF370333IRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TRF370333IRGER 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 TRF370333IRGER?
For technical support, including TRF370333IRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TRF370333IRGER requirements.
6.How does Aetrix verify that TRF370333IRGER is sourced from the original manufacturer or authorized distributors?
All TRF370333IRGER 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 TRF370333IRGER meets industry standards.
7.What is the process for return or replacement of TRF370333IRGER?
All TRF370333IRGER units undergo pre-shipment inspection (PSI). If there is an issue with TRF370333IRGER, 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 TRF370333IRGER part is unused and in its original packaging.
Return procedure for TRF370333IRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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