HMC1197LP7FE datasheet(55/57 Pages) AD

55 / 57 page

For price, delivery, and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

HMC1197LP7FE

v03.0314

Wideband direct Quadrature Modulator

w/ Fractional-n Pll & Vco, 100 - 4000 MHz

3.6

linearity optimization

Output IP3 (OIP3) of the HMC1197LP7FE depends on the DC common-mode level at the I and Q baseband

inputs. The DC common-mode level at the I and Q baseband inputs can be adjusted in order to optimize

the OIP3 for a specific frequency band. Figure 49 illustrates the typical relationship between OIP3 and the

DC common-mode level at the I and Q baseband inputs for different LO frequencies. As shown in Figure

49, OIP3 of the HMC1197LP7FE can be optimized up to 35dBm.

0.4

0.45

0.5

0.55

0.6

450 MHz

900 MHz

1900 MHz

2600 MHz

3500 MHz

BASEBAND VOLTAGE (V)

Figure 49.The HMC1197LP7FE Linearity Optimization

3.7

GSM/edGe operation

The HMC1197LP7FE is suitable for GSM/EDGE applications. The EVM performance of the HMC1197LP7FE

in a GSM/EDGE environment is shown in Figure 50

-1

-15

-12

-9

-6

-3

900 MHz

1900 MHz

OUTPUT POWER (dBm)

Figure 50.The HMC1197LP7FE EVM vs. Output Power @ GSM/EDGE(8-PSK)

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

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