SKY12343-364LF Skyworks Solutions Inc, SKY12343-364LF Datasheet

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SKY12343-364LF

Manufacturer Part Number
SKY12343-364LF
Description
ATTENUATOR DGTL GAAS 7BIT QFN-32
Manufacturer
Skyworks Solutions Inc
Datasheet

Specifications of SKY12343-364LF

Attenuation Value
0.25dB ~ 31.75dB
Tolerance
±0.25dB
Frequency Range
100MHz ~ 4GHz
Impedance
50 Ohm
Package / Case
32-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
863-1296-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SKY12343-364LF
Manufacturer:
SKYWORKS/思佳讯
Quantity:
20 000
DATA SHEET
SKY12343-364LF: 0.1 – 4.0 GHz Seven-Bit Digital Attenuator
with Serial and Parallel Drivers
Applications
 Cellular and 3G infrastructure
 WiMAX, LTE, 4G infrastructure
Features
 Broadband operation: 0.1 to 4.0 GHz
 Attenuation range: 31.75 dB with 0.25 dB LSB
 TTL/CMOS-compatible serial, parallel, or latched parallel control
 Single supply voltage: +3.3 or +5 V
 Small, QFN (32-pin, 5 x 5 mm) Pb-free package (MSL1, 260 C
interface
per JEDEC J-STD-020)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201355A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 11, 2010
Description
The SKY12343-364LF is a GaAs broadband seven-bit pHEMT
digital attenuator with a 0.25 dB Least Significant Bit (LSB). A
TTL/CMOS-compatible, dual mode serial or parallel programming
interface (SPI) controller is integrated into the device.
The SKY12343-364LF attenuator features low insertion loss,
excellent attenuation accuracy, a 31.75 dB attenuation range, and
high linearity performance. The device is an ideal choice for a
wide variety of 3G and 4G cellular infrastructure applications.
Attenuation is controlled by an SPI controller. Depending on the
SPI sequence applied to the DATA_IN pin, the attenuation state
between the RF1 and RF2 pins is programmed between a low
insertion loss state or up to 31.75 dB. The V1 through V7 DC
control pins determine the attenuation state if parallel mode is
enabled.
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.
LATCH_ENABLE
RF1
DATA_IN
CLOCK
P/S
0.25 dB
Figure 1. SKY12343-364LF Block Diagram
V1
0.5 dB
V2
1 dB
V3
Serial or Parallel Driver
V4
2 dB
V5
4 dB
V6
8 dB
16 dB
V7
VDD
A0
A2
A1
S2122
RF2
1

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SKY12343-364LF Summary of contents

Page 1

... Figure 1. SKY12343-364LF Block Diagram Description The SKY12343-364LF is a GaAs broadband seven-bit pHEMT digital attenuator with a 0.25 dB Least Significant Bit (LSB). A TTL/CMOS-compatible, dual mode serial or parallel programming interface (SPI) controller is integrated into the device. The SKY12343-364LF attenuator features low insertion loss, excellent attenuation accuracy, a 31.75 dB attenuation range, and high linearity performance ...

Page 2

... DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR Table 1. SKY12343-364LF Signal Descriptions Pin # Name 1 N/C No connection (Note 1) 2 VDD DC power supply 3 P/S Serial or parallel operation select. Logic low enables parallel mode Address bit A0 5 N/C No connection (Note 1) 6 N/C No connection (Note 1) 7 RF1 ...

Page 3

... Electrical and Mechanical Specifications The absolute maximum ratings of the SKY12343-364LF are provided in Table 3. Electrical specifications are provided in Table 4. Typical performance characteristics of the SKY12343-364LF are illustrated in Figures 4 through 17. The state of the SKY12343-364LF is determined by the logic provided in Table 5. Data Feedthrough Figure 3. Power-Up/Power-Down Timing ...

Page 4

... DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR Table 3. SKY12343-364LF Absolute Maximum Ratings Parameter Supply voltage Control voltage Input voltage RF input power Storage temperature Operating temperature Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value ...

Page 5

... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201355A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 11, 2010 DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR ] = 50 Ω, V ...

Page 6

... DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR 0 –10 –20 –30 –40 –50 –60 0 0.5 1.0 1.5 2.0 Frequency (GHz) Figure 10. Output Return Loss vs Frequency 0 –5 –10 –15 –20 –25 –30 –35 –40 0 0.5 1.0 1.5 2.0 Frequency (GHz) Figure 12. Output Return Loss (16 dB State) vs Frequency ...

Page 7

... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201355A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 11, 2010 DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR +0.5 +0 ...

Page 8

... Figure 19. Table 6 provides the Evaluation Board Bill of Materials (BOM) list. Package Dimensions The PCB layout footprint for the SKY12343-364LF is shown in Figure 20. Typical case markings are noted in Figure 21. Package dimensions for the 32-pin QFN are shown in Figure 22, and tape and reel dimensions are provided in Figure 23. ...

Page 9

... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201355A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 11, 2010 DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR Parallel Attenuation Control Input ...

Page 10

... DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR (Pin 1 Indicator) 2X 1.575 Package Outline 0.55 0.25 Detail A 32X Scale = 48X All measurements are in millimeters Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 10 October 11, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201355A Pin 32 R0 ...

Page 11

... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201355A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 11, 2010 DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR C Seating Plane 0.20 Ref. 0.02 +0.03/– ...

Page 12

... October 11, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201355A ∅1.50 + 0.1/–0.0 4.00 ± 0.10 8.00 ± 0. 5.25 (Ao) R0.25 Typ. R0.3 Max. A Figure 23. SKY12343-364LF Tape and Reel Dimensions 2.00 ± 0.05 1.75 ± 0.10 ∅1.50 Min. S1602 ...

Page 13

... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201355A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 11, 2010 DATA SHEET • SKY12343-364LF SEVEN-BIT DIGITAL ATTENUATOR Manufacturing Part Number ...

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