ADRF6704 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADRF6704
Manufacturer

ADI
ChipWorker Part#

CW983461633
Description

2050MHz TO 3000MHz Quadrature Modulator with 2500MHz TO 2900MHz Fractional-N PLL & Integrated VCO
Documentation

Datasheet

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ADRF6704 Specifications

Attribute	Attribute Value

Part Number	ADRF6704
Manufacturer	ADI
ChipWorker Part#	CW983461633
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The ADRF6704 provides a quadrature modulator and synthesizer solution within a small 6 mm × 6 mm footprint while requiring minimal external components.
The ADRF6704 is designed for RF outputs from 2050 MHz to 3000 MHz. The low phase noise VCO and high performance quadrature modulator make the ADRF6704 suitable for next generation communication systems requiring high signal dynamic range and linearity. The integration of the IQ modulator, PLL, and VCO provides for significant board savings and reduces the BOM and design complexity.
The integrated fractional-N PLL/synthesizer generates a 2× fLO input to the IQ modulator. The phase detector together with an external loop filter is used to control the VCO output. The VCO output is applied to a quadrature divider. To reduce spurious components, a sigma-delta (Σ-Δ) modulator controls the programmable PLL divider.
The IQ modulator has wideband differential I and Q inputs, which support baseband as well as complex IF architectures. The single-ended modulator output is designed to drive a 50 Ω load impedance and can be disabled.
The ADRF6704 is fabricated using an advanced silicon-germanium BiCMOS process. It is available in a 40-lead, exposed-paddle, Pb-free, 6 mm × 6 mm LFCSP package. Performance is specified from −40°C to +85°C. A lead-free evaluation board is available.
**Applications**
Cellular communications systems
GSM/EDGE, CDMA2000, W-CDMA, TD-SCDMA, LTE
Broadband wireless access systems
Satellite modems
### Features and Benefits
IQ modulator with integrated fractional-N PLL
Output frequency range: 2050 MHz to 3000 MHz
Internal LO frequency range: 2500 MHz to 2900 MHz
Output P1dB: 12.1 dBm @ 2700 MHz
Output IP3: 27.2 dBm @ 2700 MHz
Noise floor: −158.3 dBm/Hz @ 2700 MHz
Baseband bandwidth: 750 MHz (3 dB)
SPI serial interface for PLL programming
Integrated LDOs and LO buffer
Power supply: 5 V/226 mA
40-lead 6 mm × 6 mm LFCSP

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