ADRF6704 2050 MHz TO 3000 MHz Quadrature Modulator with 2500 MHz TO 2900 MHz Fractional-N PLL & Integrated VCO _ BDTIC a Leading Distributor in China

ADRF6704 2050 MHz TO 3000 MHz Quadrature Modulator with 2500 MHz TO 2900 MHz Fractional-N PLL & Integrated VCO

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

RF & Microwave

I/Q Modulators

Software & Systems Requirements

ADRF6x0x Evaluation Board Software (Rev. 6.1.0) .ZIP

Data Sheets

Document	note
ADRF6704: 2500 MHz to 2900 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO Data Sheet (Rev. 0)	PDF 416 kB

Application Notes

Document	note
AN-1100: Wireless Transmitter IQ Balance and Sideband Suppression (Rev. 0)	PDF 185 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADRF6704ACPZ-R7 Production	40 ld LFCSP (6x6mm w/4.1mm pad)	REEL 750	-40 to 85C	7.75	7	Y

Evaluation Boards

Part Number	Description	Price	RoHS
ADRF6704-EVALZ	Evaluation Board	150	Y

Reference Materials

Product Selection Guide：RF Source Booklet

ADRF6704: 2500 MHz to 2900 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO Data Sheet (Rev 0, 10/2011) ADRF6704

评估板软件 (Rev. 6.1.0) adrf6602

ADRF6704: 2500 MHz to 2900 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO Data Sheet (Rev. 0) adrf6704

AN-1100: Wireless Transmitter IQ Balance and Sideband Suppression (Rev. 0) adrf6702

AN-1100: 无线发射机IQ平衡和边带抑制 (Rev. 0) adrf6702

RF Source Booklet adf9010

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