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ADRF6704

Part Number	ADRF6704
Manufacturer	Analog Devices
Description	2050 MHz to 3000 MHz Quadrature Modulator
Published	Nov 23, 2013
Detailed Description	2050 MHz to 3000 MHz Quadrature Modulator with 2500 MHz to 2900 MHz Frac-N PLL and Integrated VCO Data Sheet FEATURES IQ...
Datasheet	ADRF6704 PDF File

Overview

2050 MHz to 3000 MHz Quadrature Modulator with 2500 MHz to 2900 MHz Frac-N PLL and Integrated VCO Data Sheet FEATURES 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 ADRF6704 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 silicongermanium 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.
Table 1.
Part No.
ADRF6701 ADRF6702 ADRF6703 ADRF6704 Internal LO Range 750 MHz 1150 MHz 1550 MHz 2150 MHz 2100 MHz 2600 MHz 2500 MHz 2900 MHz IQ Modulator ±3 dB RF Output Range 400 MHz 1250 MHz 1200 MHz 2400 MHz 1550 MHz 2650 MHz 2050 MHz 3000 MHz APPLICATIONS Cellular communications systems GSM/EDGE, CDMA2000, W-CDMA, TD-SCDMA, LTE Broadband wireless access systems Satellite modems GENERAL DESCRIPTION The ADRF6704 provides a quadrature modulator and synthesizer solution within a small 6 mm × 6 mm footprint while requiring minimal external components.
The A...

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