SKY12361-350LF Datasheet, PDF (1/9 Pages) Skyworks Solutions Inc. – 0.1 to 3.7 GHz Four-Bit Digital Attenuator

DATA SHEET
SKY12361-350LF: 0.1 to 3.7 GHz Four-Bit Digital Attenuator
(1 dB LSB)
Applications
 Cellular, 3G/4G, WiMAX, and LTE Infrastructures
 RF and IF systems
Features
 Broadband operation: 0.1 to 3.7 GHz
 Attenuation: 15 dB with 1 dB LSB
 +5 V supply voltage and +3.3 V control voltage
 Small, QFN (16-pin, 3 x 3 mm) package (MSL1, 260 C per
JEDEC J-STD-020)
Skyworks Green^TM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green^TM, document number
SQ04–0074.
RF2
V1
8 dB
4 dB
V2
2 dB
V3
V4
1 dB
S2242
RF1
Figure 1. SKY12361-350LF Block Diagram
VDD ¹
RF1 ²
N/C 3
RFGND1 4
16 15 14 13
12 _N/C
11 _RF2
10 N/C
9 N/C
56 78
S2243
Figure 2. SKY12361-350LF Pinout – 16-Pin QFN
(Top View)
Description
The SKY12361-350LF is a GaAs pHEMT four-bit broadband digital
attenuator with a 1 dB least significant bit (LSB). The attenuator
features low insertion loss, excellent attenuation accuracy, a
15 dB attenuation range, and high linearity performance. The
SKY12361-350LF is an ideal choice for a wide variety of cellular
3G and 4G infrastructure applications.
Attenuation is controlled by four DC control pins (V1, V2, V3, and
V4). Depending on the control bias, the attenuation state between
the RF1 and RF2 pins can vary between a low insertion loss state
or up to 15 dB.
The device is provided in a 3 x 3 mm, 16-pin Quad Flat No-Lead
(QFN) package. 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
202874A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 30, 2014
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