ADRF6703 - ADI

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

Part No

ADRF6703
Manufacturer

ADI
ChipWorker Part#

CW983460769
Description

1550MHz TO 2650MHz Quadrature Modulator with 2100MHz TO 2600MHz Fractional-N PLL & Integrated VCO
Documentation

Datasheet

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ADRF6703 Specifications

Attribute	Attribute Value

Part Number	ADRF6703
Manufacturer	ADI
ChipWorker Part#	CW983460769
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The ADRF6703 provides a quadrature modulator and synthesizer solution within a small 6 mm × 6 mm footprint while requiring minimal external components.
The ADRF6703 is designed for RF outputs from 1550 MHz to 2650 MHz. The low phase noise VCO and high performance quadrature modulator make the ADRF6703 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 ADRF6703 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
RF output frequency range: 1550 MHz to 2650 MHz
Internal LO frequency range: 2100 MHz to 2600 MHz
Output P1dB: 14.2 dBm @ 2140 MHz
Output IP3: 33.2 dBm @ 2140 MHz
Noise floor: −159.6 dBm/Hz @ 2140 MHz
Baseband bandwidth: 750 MHz (3 dB)
SPI serial interface for PLL programming
Integrated LDOs and LO buffer
Power supply: 5 V/240 mA
40-lead 6 mm × 6 mm LFCSP

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