SKY12340-364LF Datasheet, PDF (1/13 Pages) Skyworks Solutions Inc. – 300 kHz - 2.0 GHz Five-Bit Digital Attenuator with Serial-to-Parallel Driver

DATA SHEET
SKY12340-364LF: 300 kHz – 2.0 GHz Five-Bit Digital
Attenuator with Serial-to-Parallel Driver
Applications
 Cellular infrastructure
 Wireless receivers
VSS VDD
DATA_OUT
RF2
8 dB
Features
4 dB
DATA_IN
 Single, +5 V DC supply voltage
 Integrated silicon serial-to-parallel driver
 Attenuation: 0.5 dB steps to 15.5 dB
LATCH
2 dB
 Small, QFN (32-pin, 5 x 5 mm) Pb-free package (MSL1, 260 C
CLK_IN
1 dB
per JEDEC J-STD-020)
RESET
0.5 dB
RF1
S1591
Figure 1. SKY12340-364LF Block Diagram
Description
The SKY12340-364LF is a GaAs FET five-bit digital attenuator I/C
with a serial-to-parallel driver. The device is provided in a
5 x 5 mm, 32-pin Quad Flat No-Lead (QFN) package.
The SKY12340-364LF is particularly suited at IF frequencies for
which high attenuation accuracy, low insertion loss, and low
intermodulation products are required.
A functional block diagram is shown in Figure 1. The pin
configuration and package are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201111B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 5, 2010
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