www.DataSheet4U.com DATA SHEET
SKY73012: 400 – 3900 MHz Direct Quadrature Demodulator
Applications
• WiMAX (802.16) receivers • CDMA macro and pico base stations • PCS, DCS, GSM/GPRS, and EDGE receivers • Third Generation (3G) wireless communications • Power amplifier feedback/linearization • Wireless Local Loops (WLLs) • Wireless Local Area Networks (WLANs) • RFID readers
Description
Skyworks SKY73012 is an integrated, broadband, high-dynamic range quadrature demodulator for use in various wireless communication system applications. The SKY73012 can perform quadrature demodulation of RF input signals from 400 to 3900 MHz directly to baseband frequencies. The quadrature outputs are differential and can be directly connected to most commonly available A/D converters. The high dynamic range and second order Input Intercept Point (IIP2) value of the SKY73012 make it ideal for use in direct conversion and low Intermediate Frequency (IF) receivers. Figure 1 shows a functional block diagram for the SKY73012. The device package and pinout for the 32-pin RF Land Grid Array (RFLGA) are shown in Figure 2. Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances) compliant packaging.
Features
• High IIP2 and IIP3 • Wideband RF input frequency range (400 to 3900 MHz) • Wideband LO input frequency range (400 to 3900 MHz) • Integrated LO balun • Integrated LO amplifier • On-chip I/Q phase splitter • Differential IF output supports direct interface to A/D circuitry • AM demodulation immunity • Single +3.0 V supply • RFLGA™ (32 pin, 5 x 5 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020)
GND
GND
GND
GND
27
I+
I–
RF+ RF–
0 90 180
LO
GND GND GND VCC VCC VCC GND GND GND
1 2 3 4 5 6 7 8 9
32
31
30
29
28
26
GND
25 24 23 22 21 20 19 18 17
RF+
RF–
GND IFIP GND IFIN GND IFQP GND IFQN GND
C1468
10
11
12
13
14
15
16
GND
GND
GND
GND
LO
GND
Q+
Q–
C1469
Figure 1. SKY73012 Functional Block Diagram
Figure 2. SKY73012 Pinout– 32-Pin RFLGA Package (Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 •
[email protected] • www.skyworksinc.com
200473B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • January 12, 2007
GND
1
DATA SHEET • SKY73012 DEMODULATOR
Table 1. SKY73012 Signal Descriptions
www.DataSheet4U.com Pin # Name
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND GND GND VCC VCC VCC GND GND GND GND GND GND GND LO GND GND Ground Ground Ground +3 VDC supply +3 VDC supply +3 VDC supply Ground Ground Ground Ground Ground Ground Ground LO input Ground Ground Description Pin # 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 GND IFQN GND IFQP GND IFIN GND IFIP GND GND GND RF– GND RF+ GND GND Name Ground Negative quadrature IF output Ground Positive quadrature IF output Ground Negative in-phase IF output Ground Positive in-phase IF output Ground Ground Ground Negative RF input Ground Positive RF input Ground Groun.