SLWS239A June   2013  – November 2015 TRF37T05

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: General
    6. 6.6  Electrical Characteristics
    7. 6.7  Typical Characteristics: Single-Tone Baseband
    8. 6.8  Typical Characteristics: Two-Tone Baseband
    9. 6.9  Typical Characteristics: Two-Tone Baseband, Mid-Band Calibration
    10. 6.10 Typical Characteristics: No Baseband
    11. 6.11 Typical Characteristics: Two-Tone Baseband
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Gain Control Feature
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Down Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Baseband Inputs
        2. 8.2.2.2 LO Input
        3. 8.2.2.3 RF Output
        4. 8.2.2.4 350-MHz Operation
        5. 8.2.2.5 DAC to Modulator Interface Network
        6. 8.2.2.6 DAC348x with TRF37T05 Modulator Performance
          1. 8.2.2.6.1 WCDMA
          2. 8.2.2.6.2 LTE
          3. 8.2.2.6.3 MC-GSM
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Definition of Specifications
        1. 11.1.1.1 Carrier Feedthrough
        2. 11.1.1.2 Sideband Suppression
        3. 11.1.1.3 Output Noise
        4. 11.1.1.4 Definition of Terms
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • High Linearity:
    • Output IP3: 30 dBm at 1850 MHz
  • Low Output Noise Floor: –160 dBm/Hz
  • 78-dBc Single-Carrier WCDMA ACPR
    at –10-dBm Channel Power
  • Unadjusted Carrier Suppression: –40 dBm
  • Unadjusted Sideband Suppression: –45 dBc
  • Single Supply: 3.3-V Operation
  • 1-bit Gain Step Control
  • Fast Power-Up/Power-Down

2 Applications

  • Cellular Base Station Transmitter
  • CDMA: IS95, UMTS, CDMA2000, TD-SCDMA
  • LTE (Long Term Evolution), TD-LTE
  • TDMA: GSM, EDGE/UWC-136
  • Multicarrier GSM (MC-GSM)
  • Wireless MAN Wideband Transceivers

3 Description

The TRF37T05 is a low-noise direct quadrature modulator with exceptional TDD performance. It is capable of converting complex modulated signals from baseband or IF directly up to RF. The TRF37T05 is a high-performance, superior-linearity device that is ideal to up-convert to RF frequencies of 300 MHz (Note: appropriate matching network is required for optimal performance at 300 MHz) through 4 GHz. The modulator is implemented as a double-balanced mixer.

The RF output block consists of a differential-to-single-ended converter that is capable of driving a single-ended 50-Ω load. The TRF37T05 requires a 0.25-V common-mode voltage for optimum linearity performance. The TRF37T05 also provides a fast power-down pin that can be used to reduce power dissipation while maintaining optimized adjusted carrier feed-through performance in TDD applications.

The TRF37T05 is available in an RGE-24 VQFN package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TRF37T05 VQFN (24) 4.00 mm x 4.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Block Diagram

TRF37T05 fbd_lws223.gif