Overview

Features and Benefits

  • Fast settling, fractional-N
    PLL architecture
  • Single PLL replaces ping-pong synthesizers
  • Frequency hop across GSM band in 5 μs with phase settled within 20 μs
  • 1 degree rms phase error at 4 GHz RF output
  • Digitally programmable output phase
  • RF input range up to 6 GHz
  • 3-wire serial interface
  • On-chip, low noise differential amplifier
  • Phase noise figure of merit: –216 dBc/Hz

Product Details

The ADF4196 frequency synthesizer can be used to implement local oscillators (LO) in the upconversion and downconversion sections of wireless receivers and transmitters. Its architecture is specifically designed to meet the GSM/EDGE lock time requirements for base stations, and the fast settling feature makes the ADF4196 suitable for pulse Doppler radar applications.

The ADF4196 consists of a low noise, digital phase frequency detector (PFD) and a precision differential charge pump. A differential amplifier converts the differential charge pump output to a single-ended voltage for the external voltage controlled oscillator (VCO). The sigma-delta (Σ-Δ) based fractional interpolator, working with the N divider, allows programmable modulus fractional-N division. Additionally, the 4-bit reference (R) counter and on-chip frequency doubler allow selectable reference signal (REFIN) frequencies at the PFD input.

A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and a VCO. The switching architecture ensures that the PLL settles within the GSM time slot guard period, removing the need for a second PLL and associated isolation switches. This decreases the cost, complexity, PCB area, shielding, and characterization found on previous ping-pong GSM PLL architectures.

Applications

  • GSM/EDGE base stations
  • PHS base stations
  • Pulsed Doppler radar
  • Instrumentation and test equipment
  • Beam-forming/phased array systems

Product Lifecycle icon-recommended 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)

Tools & Simulations

Design Tools

ADIsimPLL™

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.

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

Product Recommendations

ADF4196 Companion Parts

Recommended Linear Regulators

  • For high accuracy, 5V applications: ADP3334.
  • For a step up, 3V to 5V regulator: ADP1613.
  • For ultralow noise, 3V applications,150 mA output: ADP150.
  • For ultalow noise, 3V applications, 200 mA output: ADP151.

Recommended Divide-by-4 Prescaler

  • For a low noise, low power, fixed RF block: ADF5001.

Recommended Modulators/Demodulators

Recommended PLL Active Filter

  • For an ultralow noise, rail-to-rail amplifier: OP184.

Recommended RF Mixers

Design Resources

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.

PCN-PDN Information

Sample & Buy

Sample & Buy functionality exists in desktop site
Back
Check Inventory


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.


Price Table Help

 

Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.