TRF3705 300MHz to 4GHz Quadrature Modulator | TI.com

TRF3705
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
300MHz to 4GHz Quadrature Modulator

 

Recommended alternative parts

  • TRF3765  -  Integer-N/Fractional-N PLL with Integrated VCO (0.3 to 4.8GHz)

Description

The TRF3705 is a low-noise direct quadrature modulator, capable of converting complex modulated signals from baseband or IF directly up to RF. The TRF3705 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 TRF3705 requires a 0.25-V common-mode voltage for optimum linearity performance. The TRF3705 also provides a fast power-down pin that can be used to reduce power dissipation in TDD applications.

The TRF3705 is available in an RGE-24 VQFN package.

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

Parametrics

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Part number Order Frequency (Min) (MHz) Frequency (Max) (MHz) I/Q input common-mode voltage (Typ) PLL/VCO P1dB (Typ) (dBm) Output IP3 (Typ) (dBm) Noise floor (Typ) (dBm/Hz) Unadjusted carrier suppression (Typ) (dBm) Unadjusted sideband suppression (Typ) (dBc) Supply (V) Package Group Package size: mm2:W x L (PKG)
TRF3705 Order now 300     4000     0.25     No     13     30     -160     -45     -45     3.3     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
TRF370315 Samples not available 350     4000     1.5     No     9     23     -163     -40     -40     5     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
TRF370317 Samples not available 400     4000     1.7     No     12     26.5     -163     -40     -45     5     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
TRF370333 Order now 350     4000     3.3     No     9     23     -163     -40     -40     5     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
TRF370417 Order now 50     6000     1.7     No     12     26.5     -162     -38     -50     5     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
TRF372017 Order now 300     4800     1.7     Yes     12     26     -163     -40     -40     5     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)    
TRF3722 Order now 400     4200     0.25     Yes     12     31     -159     -50     -50     3.3     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)    
TRF37T05 Order now 300     4000     0.25     No     13     30     -160     -45     -45     3.3     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)