Quadrature Modulators
869 MHz to 1990 MHz Quadrature Modulators ADL5590/ADL5591
FEATURES
Operating frequencies ADL5590: 869 MHz to 960 MHz ADL...
Description
869 MHz to 1990 MHz Quadrature Modulators ADL5590/ADL5591
FEATURES
Operating frequencies ADL5590: 869 MHz to 960 MHz ADL5591: 1805 MHz to 1990 MHz Output compression point P1dB: 16 dBm Output third-order intercept point OIP3 ADL5590: 29 dBm @ 900 MHz ADL5591: 30 dBm @ 1900 MHz Noise floor: −157 dBm/Hz Sideband suppression ADL5590: <−50 dBc @ 900 MHz ADL5591: <−47 dBc @ 1900 MHz Baseband common-mode bias: 1.5 V LO leakage ADL5590: −50 dBc @ 900 MHz, POUT = 5 dBm ADL5591: −44 dBc @ 1900 MHz, POUT = 5 dBm Single supply: 4.75 V to 5.25 V Package: 36-lead, 6 mm × 6 mm LFCSP
FUNCTIONAL BLOCK DIAGRAM
36 35 34 33 32 31 30 29 28 GND GND GND VPS5 GND VPS4 GND GND GND
GND GND VPS1 LOIP GND LOIN GND GND GND
1 2 3 4 5 6 7 8 9
ADL5590/ ADL5591
QUADRATURE PHASE SPLITTER
27 26 25 24 23 22 21
GND QBBP QBBN GND VOUT GND IBBN
20 IBBP 19 GND
10 11 12 13 14 15 16 17 18
Figure 1.
APPLICATIONS
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Wireless infrastructure Optimized for GSM transmitters
GENERAL DESCRIPTION
This family of monolithic RF quadrature modulators is designed for use from 869 MHz to 960 MHz and from 1805 MHz to 1990 MHz. Excellent phase accuracy and amplitude balance enable high performance, direct RF modulation for communications systems. The ADL5590 and ADL5591 can be used as direct RF modulators in digital communications systems such as those using the Global System for Mobile Communications (GSM) network. In addition, the parts are compatible with enhanced data rates for GSM evolution (EDGE). ...
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