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The ADI ADF4356BCPZ is a 6.8 GHz broadband frequency synthesizer with integrated VCO

Overview

When used in combination with an external loop filter and an external reference frequency, the ADF4356 enables a fractional N division or integer N division phase locked loop (PLL) frequency synthesizer. A series of dividers with other frequency outputs can achieve operating frequencies from 53.125 MHz to 6800 MHz.

The ADF4356 has an integrated VCO with a fundamental output frequency range of 3400 MHz to 6800 MHz. In addition, VCO frequencies can be divided 1, 2, 4, 8, 16, 32, or 64, so users can generate RF output frequencies as low as 53.125 MHz. For applications that require isolation, the RF output stage can be muted. The mute function can be controlled either by pins or software.

All on-chip registers are controlled through a simple three-wire interface. The ADF4356 operates with analog and digital power supplies from 3.15 V to 3.45 V, with charge pumps from 4.75 V to 5.25 V and VCO power supplies. In addition, the ADF4356 also has built-in hardware and software power down modes.

Applications

• Wireless infrastructure (LTE, W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS)

• Point-to-point/point-to-multipoint microwave links

• Satellite /VSAT

• Test equipment/instrumentation

• Clock generation

Features

RF output frequency range: 53.125 MHz to 6800 MHz

Integer channel: −227 dBc/Hz

Decimal channel: -225 dBc/Hz

Integrated RMS jitter (1 kHz to 20 MHz) : 97 fs for 6 GHz output

Fractional N frequency synthesizer and integer N frequency synthesizer

Pin compatible with ADF4355

High resolution, 52-bit module

Frequency and Phase discriminator (PFD) operating up to 125 MHz

Reference input frequency up to 600 MHz

Frequency locking is maintained in the range −40°C to +85°C

Low phase noise voltage Controlled Oscillator (VCO)

Programmable 1, 2, 4, 8, 16, 32 or 64 crossover output

Analog and digital power supply: 3.3V

Charge pump and VCO power supply: 5.0V (typical)

Logical compatibility: 1.8V

Programmable output power level

RF output mute function

ADIsimPLL design tool support

Block diagram

If interested, please call:

Contact: Mr. Chen

Tel: +8613410018555

Email: sales@hkmjd.com