Features and Benefits
- 1 GHz to 26.5 GHz bandwidth
- Ultralow noise PLL
- Integer N = −235 dBc/Hz, fractional-N = −231 dBc/Hz
- High maximum PFD frequency
- Integer N = 250 MHz, fractional-N = 125 MHz
- 25-bit fixed/49-bit variable fractional modulus mode
- Single-ended reference input
- 3.3 V power supply, 3.3 V charge pump
- Integrated 1.8 V logic capability
- Phase resync
- Programmable charge pump currents: 16× range
- Digital lock detect
- 3-wire serial interface with register readback option
- Hardware and software power-down mode
- Operating range from −40°C to +105°C
The ADF41513 is an ultralow noise frequency synthesizer that can be used to implement local oscillators (LOs) as high as 26.5 GHz in the upconversion and downconversion sections of wireless receivers and transmitters.
The ADF41513 is designed on a high performance silicon geranium (SiGe), bipolar complementary metal-oxide semiconductor (BiCMOS) process, achieving a normalized phase noise floor of −235 dBc/Hz. The phase frequency detector (PFD) operates up to 250 MHz (integer N mode)/125 MHz (fractional-N mode) for improved phase noise and spur performance. The variable modulus, ∑-Δ modulator allows extremely fine resolution when using a 49-bit divide value. The ADF41513 can be used as an integer N phase-locked loop (PLL), or it can be used as a fractional-N PLL with either a fixed modulus for subhertz frequency resolution or variable modulus for subhertz exact frequency resolution.
A complete PLL is implemented when the synthesizer is used with an external loop filter and voltage controlled oscillator (VCO). The 26.5 GHz bandwidth eliminates the need for a frequency doubler or divider stage, simplifying system architecture and reducing cost. The ADF41513 is packaged in a compact, 24-lead, 4 mm × 4 mm LFCSP
- Test equipment and instrumentation
- Wireless infrastructure
- Microwave point to point and multipoint radios
- Very small aperture terminal (VSAT) radios
- Aerospace and defense
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The EV-ADF41513SD1Z and EV-AD41513SD2Z are evaluation boards that can be used to evaluate all the features of the ADF41513. The EV-ADF41513SD1Z requires an external voltage controlled oscillator (VCO). The EV-ADF41513SD2Z includes an on-board 10 GHz to 20 GHz HMC733 VCO.
EV-ADF41513SD1Z has Subminiature Version A (SMA) connectors to connect the charge pump output (VTUNE) to the tuning input of the VCO and the phase-locked loop (PLL) radio frequency (RF) input (RFIN) to the VCO output.
Both variants of the evaluation board include the ADF41513 frequency synthesizer, 100 MHz reference (crystal oscillator (XO)), loop filter, universal serial bus (USB) interface, low noise voltage regulators, and a USB cable to connect the board to a PC USB port
For easy programming of the synthesizer, download the Windows®-based software from the ADF41513 product page at www.analog.com/ADF41513. The file transfer program (FTP) user name and password are printed on the label inside the lid of the evaluation board box.
The evaluation board requires a SDP-S (Figure 4), which is not included with the kit. The SDP-S allows software programming of the ADF41513 device through a USB interface. Consult the ADF41513 data sheet in conjunction with this user guide when working with the evaluation boards.
Features & Benefits
- ADF41513 frequency synthesizer, 100 MHz crystal oscillator, loop filter, USB interface, and voltage regulators
- All features of EV-ADF41513SD1Z plus HMC733 10 GHz to 20 GHz VCO
- Windows-based software allows control of synthesizer functions from a PC
- Externally powered by 6 V and 25 V
Tools & Simulations
ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.