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 • sales@skyworksinc.com • www.skyworksinc.com
200473B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • January 12, 2007
GND
1
SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
