DATA SHEET SKY73078-459LF: 500-1500 MHz Quadrature Modulator Applications Description Skyworks SKY73078-459LF is an integrated quadrature Cellular base station systems: GSM/EDGE, CDMA2000, modulator for the upconversion of complex modulated W-CDMA, TD-SCDMA, LTE baseband/IF signals directly up to RF. The device is designed for WiMAX/broadband wireless access systems use in the 500 to 1500 MHz range. The high linearity, and Satellite modems excellent I/Q phase accuracy and amplitude balance of the SKY73078-459LF make it ideal for use in high performance communication systems. Features The modulator accepts two differential baseband inputs and a RF frequency operation range: 500 to 1500 MHz single-ended Local Oscillator (LO), and generates a single-ended RF output. The baseband input buffers accept an input common- Modulation bandwidth > 65 MHz (0.1 dB), 210 MHz (1 dB) mode voltage of 0.5 V and have a 0.1 dB bandwidth of >65 MHz. Side-band suppression better than 45 dBc The LO input is broadband matched on-chip to 50 , which Carrier feedthrough of 40 dBm enables a direct connection to a 50 LO source. The RF output is high impedance, designed for a direct connection to a 50 load. Noise floor of 158 dBm/Hz Figure 1 shows a functional block diagram for the SKY73078- Single supply: 4.75 to 5.25 V 459LF. The device package and pinout for the 24-pin Quad Flat QFN (24-pin, 4 x 4 mm) package (MSL1, 260 C per JEDEC No-Lead (QFN) package are shown in Figure 2. Signal pin J-STD-020) assignments and functional pin descriptions are provided in Table 1. Skyworks Pb-free products are compliant with all applicable legislation. For additional information, refer to Skyworks Denition of Lead (Pb)-Free, document number SQ04-0073. BBIP BBIN LOP 0/90 RFOUT LON BBQP BBQN S1610 Figure 1. SKY73078-459LF Functional Block Diagram Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201121I Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice October 26, 2018 1 DATA SHEET SKY73078-459LF QUADRATURE MODULATOR 24 23 22 21 20 19 GND VCC 1 18 GND 2 17 VCC VCC 3 16 VCC 4 15 VCC VCC VCC VCC 5 14 VCC 6 13 RFOUT 78 9 10 11 12 S1609 Figure 2. SKY73078-459LF Pinout, 24-Pin QFN (Top View) Table 1. SKY73078-459LF Signal Descriptions Pin Name Description Pin Name Description 1 GND Ground 13 RFOUT RF output. Pin should be AC-coupled to the load. 2 GND Ground 14 VCC +5 VDC supply 3 VCC +5 VDC supply 15 VCC +5 VDC supply 4 VCC +5 VDC supply 16 VCC +5 VDC supply 5 VCC +5 VDC supply 17 VCC +5 VDC supply 6 VCC +5 VDC supply 18 VCC +5 VDC supply 7 GND Ground 19 BBIP High impedance positive I input. Should be externally DC-biased to 0.5 V. 8 LOP 50 single-ended positive LO input. Pin 20 BBIN High impedance negative I input. Should be must be AC-coupled to the LO. externally DC-biased to 0.5 V. 9 LON 50 single-ended negative LO input. Pin 21 GND Ground must be AC-coupled to ground. 10 GND Ground 22 GND Ground 11 GND Ground 23 BBQP High impedance positive Q input. Should be externally DC-biased to 0.5 V. 12 GND Ground 24 BBQN High impedance negative Q input. Should be externally DC-biased to 0.5 V. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 October 26, 2018 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 20112I GND BBQP LOP BBQN LON GND GND GND GND BBIN GND BBIP