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TRF3765

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300M-4800MHz Low Noise Integer-N/Fractional-N PLL with Integrated VCO and up to 8 Outputs

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Data sheet

TRF3765

ACTIVE
Data sheet Order now

Product details

Integrated VCO Yes Output frequency (min) (MHz) 300 Output frequency (max) (MHz) 4800 Normalized PLL phase noise (dBc/Hz) -221 Current consumption (mA) 115 Features Wideband 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -106 Rating Catalog Operating temperature range (°C) -40 to 85 Lock time (µs) (typ) 0.00006
Integrated VCO Yes Output frequency (min) (MHz) 300 Output frequency (max) (MHz) 4800 Normalized PLL phase noise (dBc/Hz) -221 Current consumption (mA) 115 Features Wideband 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -106 Rating Catalog Operating temperature range (°C) -40 to 85 Lock time (µs) (typ) 0.00006
VQFN (RHB) 32 25 mm² 5 x 5
  • Output Frequencies: 300 MHz to 4.8 GHz
  • Low-Noise VCO: –133 dBc/Hz
    (1-MHz Offset, fOUT = 2.65 GHz)
  • 13-/16-Bit Reference/Feedback Divider
  • 25-Bit Fractional-N and Integer-N PLL
  • Low RMS Jitter: 0.35 ps
  • Input Reference Frequency Range:
    0.5 MHz to 350 MHz
  • Programmable Output Divide-by-1/-2/-4/-8
  • Four Differential LO Outputs
  • External VCO Input with Programmable VCO
    On/Off Control
  • Output Frequencies: 300 MHz to 4.8 GHz
  • Low-Noise VCO: –133 dBc/Hz
    (1-MHz Offset, fOUT = 2.65 GHz)
  • 13-/16-Bit Reference/Feedback Divider
  • 25-Bit Fractional-N and Integer-N PLL
  • Low RMS Jitter: 0.35 ps
  • Input Reference Frequency Range:
    0.5 MHz to 350 MHz
  • Programmable Output Divide-by-1/-2/-4/-8
  • Four Differential LO Outputs
  • External VCO Input with Programmable VCO
    On/Off Control

The TRF3765 is a wideband Integer-N/Fractional-N frequency synthesizer with an integrated, wideband voltage-controlled oscillator (VCO). Programmable output dividers enable continuous frequency coverage from 300 MHz to 4.8 GHz. Four separate differential, open-collector RF outputs allow multiple devices to be driven in parallel without the need of external splitters.

The TRF3765 also accepts external VCO input signals and allows on/off control through a programmable control output. For maximum flexibility and wide reference frequency range, wide-range divide ratio settings are programmable and an off-chip loop filter can be used.

The TRF3765 is available in an RHB-32 QFN package.

The TRF3765 is a wideband Integer-N/Fractional-N frequency synthesizer with an integrated, wideband voltage-controlled oscillator (VCO). Programmable output dividers enable continuous frequency coverage from 300 MHz to 4.8 GHz. Four separate differential, open-collector RF outputs allow multiple devices to be driven in parallel without the need of external splitters.

The TRF3765 also accepts external VCO input signals and allows on/off control through a programmable control output. For maximum flexibility and wide reference frequency range, wide-range divide ratio settings are programmable and an off-chip loop filter can be used.

The TRF3765 is available in an RHB-32 QFN package.
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Technical documentation

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Type Title Date
* Data sheet TRF3765 Integer-N/Fractional-N PLL With Integrated VCO datasheet (Rev. E) PDF | HTML 07 Jan 2016
EVM User's guide TSW12J54EVM User's Guide 21 Oct 2015
Analog Design Journal Analog Applications Journal 2Q 2015 28 Apr 2015
Analog Design Journal JESD204B multi-device synchronization: Breaking down the requirements 28 Apr 2015
More literature Characterization Report for FMC30RF 18 Sep 2014
Technical article Increasing dynamic performance in radar systems 10 May 2014
EVM User's guide TRF3765 EVM User's Guide (Rev. A) 02 Jul 2012
More literature TRF3765 Synthesizer Lock Time 06 Feb 2012
More literature TRF3765 REF_IN Impedance Application Note 11 Jan 2012
More literature Low supply TRF3765 performance evaluation 04 Jan 2012
More literature TRF3765 Output Terminations 04 Jan 2012
More literature Supply Noise Effect on Oscillator Phase Noise 22 Nov 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DAC34SH84EVM — DAC34SH84 Quad-Channel, 16-Bit, 1.5-GSPS Digital-to-Analog Converter Evaluation Module

The DAC34SH84EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments' four-channel, ultra-low power, 16-bit, 1.5 GSPS DAC34SH84 digital-to-analog converter (DAC) with 32-bit wide DDR LVDS data input, integrated 2x/4x/8x/16x interpolation filters, 32-bit NCO and (...)

User guide: PDF
Not available on TI.com
Evaluation board

TRF3765EVM — TRF3765 Evaluation Module

The TRF3765EVM evaluation module is intended to enable the evaluation of the TRF3765 Integer-N/Fractional-N PLL with Integrated VCO for wideband frequency synthesis. Applications include Wireless Infrastructure, Wireless Local Loop, Point-to-Point Wireless Access, and Wireless MAN Wideband (...)
User guide: PDF
Not available on TI.com
Evaluation board

TSW12J54EVM — Wideband RF receiver reference design

RF Sampling 4GSPS ADC with 8GHz DC-Coupled Fully differential Amplifier. Provides a wide bandwidth high performance AC- or DC-coupled capture platform with up to 2 GHz of continous capture bandwidth. Built-in DDC functions enable tuning, down-conversion and bandwidth reduction of captured signals (...)

User guide: PDF
Not available on TI.com
Evaluation board

TSW3065EVM — TSW3065 Standalone Local Oscillator Source Evaluation Module

The TSW3065EVM is based on Texas Instruments integer-N / Fractional –N frequency synthesizer with integrated wideband VCO TRF3765. Its frequency ranges from 300 MHz to 4.8 GHz. It provides programmable output power with a combination of amplifier and programmable attenuator. TSW3065EVM has an (...)

User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

TRF3765EVM Design Kit (Rev. D)

SLWC103D.ZIP (31910 KB)
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GUI for evaluation module (EVM)

TRF3765 GUI

SLWC108.ZIP (122887 KB)
Download
Plug-in

ABACO-3P-FMC30RFFPGA — Abaco Systems® FMC30RF FPGA mezzanine card

The FMC30RF is an FMC daughter card which is fully compliant with the VITA 57.1 FMC standard. The FMC30RF offers in a small footprint, a low power and fully featured Rx/Tx signal path for the development of advanced RF solutions. With a frequency range coverage from 400 MHz to 3.0 GHz and up to 30 (...)
From: Abaco Systems
Go to third party
Reference designs

TIDA-00431 — RF Sampling 4-GSPS ADC Reference Design with 8-GHz DC-Coupled Differential Amplifier

Wideband radio frequency (RF) receivers allow greatly increased flexibility in radio designs. The wide instantaneous bandwidth allows flexible tuning without changing hardware and the ability to capture multiple channels at widely separated frequencies.

This reference design describes a wideband RF (...)

Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01015 — 4 GHz Clock Reference Design for 12 Bit High Speed ADCs in Digital Oscilloscopes & Wireless Testers

The TIDA-01015 is a clocking solution reference design for high speed direct RF sampling GSPS ADCs. This design showcases the significance of the sampling clock to achieve high SNR for 2nd Nyquist zone input signal frequencies. ADC12J4000 is a 12-bit, 4-GSPS RF sampling ADC with 3-dB input (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00826 — 50-Ohm 2-GHz Oscilloscope Front-end Reference Design

This reference design is part of an analog front-end for 50Ω-input oscilloscope application. System designers can readily use this evaluation platform to process input signals from DC to 2 GHz in both frequency-domain and time-domain applications.
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00359 — Clocking Solution Reference Design for GSPS ADCs

Low cost, high performance clocking solution for GSPS data converters. This reference design discusses the use of a TRF3765, a low noise frequency synthesizer, generating the sampling clock for a 4 GSPS analog-to-digital converter (ADC12J4000). Experiments demonstrate data sheet comparable SNR and (...)
Design guide: PDF
Schematic: PDF
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VQFN (RHB) 32 View options

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