產品詳細資料

Frequency (min) (MHz) 300 Frequency (max) (MHz) 4000 I/Q input common-mode voltage (typ) (V) 0.25 PLL/VCO No P1dB (typ) (dBm) 13 OIP3 (typ) (dBm) 30 Noise floor (typ) (dBm/Hz) -160 Unadjusted carrier suppression (typ) (dBm) -45 Unadjusted sideband suppression (typ) (dBc) -45 Rating Catalog Operating temperature range (°C) -40 to 85
Frequency (min) (MHz) 300 Frequency (max) (MHz) 4000 I/Q input common-mode voltage (typ) (V) 0.25 PLL/VCO No P1dB (typ) (dBm) 13 OIP3 (typ) (dBm) 30 Noise floor (typ) (dBm/Hz) -160 Unadjusted carrier suppression (typ) (dBm) -45 Unadjusted sideband suppression (typ) (dBc) -45 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² 4 x 4
  • 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
  • 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

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.

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.

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類型 標題 日期
* Data sheet TRF3705 300-MHz to 4-GHz Quadrature Modulator datasheet (Rev. B) PDF | HTML 2012年 11月 19日
Technical article Can a clock generator act as a jitter cleaner? PDF | HTML 2017年 3月 23日
Technical article Don’t let bad reference signals destroy the phase noise in your PLL/synthesizer PDF | HTML 2017年 1月 10日
Technical article A survival guide to scaling your PLL loop filter design PDF | HTML 2016年 11月 22日
Technical article What to do when your PLL does not lock PDF | HTML 2016年 7月 12日
Technical article Issues with jitter, phase noise, lock time or spurs? Check the loop-filter bandwid PDF | HTML 2016年 6月 6日
User guide TSW308x Evaluation Module (Rev. B) 2016年 5月 18日
EVM User's guide TSW3XJ8XEVM User's Guide (Rev. B) 2016年 3月 9日
Design guide TSW308x Wideband Digital to RF Transmit Solution Design Guide 2013年 9月 3日
Design guide Analog Interfacing Networks for DAC348x and Modulators (TIDA-00077) (Rev. A) 2013年 8月 14日
Application note Baseband I/Q Trace Mismatch Degrades Sideband Suppression of RF I/Q Modulation 2012年 9月 21日
Application note TSW3725: Modifying to use the TRF3705 for Performance and BOM Improvements 2012年 8月 24日
Application note RF Matching Optimization Improves TRF3705 Performance 2012年 3月 7日
Application note LO Harmonic Effects on TRF3705 Sideband Suppression 2012年 3月 5日
User guide TSW3085EVM ACPR and EVM Measurements (TIDA-00076 Reference Guide) 2011年 12月 29日
EVM User's guide TRF3705EVM Evaluation Module 2011年 10月 11日

設計與開發

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開發模組 (EVM) 的 GUI

SLAC507 TSW308x EVM Software

支援產品和硬體

支援產品和硬體

產品
高速 DAC (>10 MSPS)
DAC3482 雙通道、16 位元、1.25-GSPS、1x-16x 內插數位轉類比轉換器 (DAC) DAC3484 四通道、16 位元、1.25-GSPS、1x-16x 內插數位轉類比轉換器 (DAC) DAC34H84 四通道、16 位元、1.25-GSPS、1x-16x 內插數位轉類比轉換器 (DAC) DAC34SH84 四通道、16 位元、1.5-GSPS、1x-16x 內插數位轉類比轉換器 (DAC)
IQ 調變器
TRF3705 300MHz 至 4GHz 正交調變器
時鐘抖動清除器及同步器
LMK04803 具雙串接 PLL 和整合式 1.9 GHz VCO 的低雜訊時脈抖動清除器 LMK04805 具雙串接 PLL 和整合式 2.2 GHz VCO 的低雜訊時脈抖動清除器 LMK04806 具雙串接 PLL 和整合式 2.5 GHz VCO 的低雜訊時脈抖動清除器 LMK04808 具雙迴路 PLL 和整合式 2.9 GHz VCO 的低雜訊時脈抖動清除器
硬體開發
開發板
TSW3084EVM 寬頻發射訊號鏈評估板和參考設計 TSW3085EVM 寬頻發射訊號鏈評估板和參考設計 TSW30H84EVM 寬頻發射訊號鏈評估板和參考設計
開發模組 (EVM) 的 GUI

SLAC661 TSW3xJ8xEVM Software

lock = 需要匯出核准 (1 分鐘)
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產品
高速 DAC (>10 MSPS)
DAC37J84 四通道、16 位元、1.6-GSPS、1x-16x 內插數位轉類比轉換器 (DAC) DAC38J84 四通道、16 位元、2.5-GSPS、1x-16x 內插數位轉類比轉換器 (DAC)
IQ 調變器
TRF3705 300MHz 至 4GHz 正交調變器 TRF3722 具整合式寬頻 PLL/VCO 的 400-MHz 至 4.2-GHz 正交調變器
參考設計

TIDA-00409 — 最高達 4-GHz 的 1-GHz 頻寬雙通道發射器參考設計

The TSW38J84 EVM reference design provides a platform to demonstrate a wideband dual transmit solution that incorporates an integrated LO.  The reference design utilizes the 2.5 GSPS DAC38J84 device with the high performance modulators: TRF3722 (including integrated PLL/VCO) and TRF3705. The (...)
Design guide: PDF
電路圖: PDF
參考設計

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電路圖: PDF
參考設計

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電路圖: PDF
參考設計

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Design guide: PDF
電路圖: PDF
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