SKY73085-11 SKYWORKS | Alldatasheet
Document overview
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- PDF pages: 16
Technical content
Features
- Operating frequency range: 390 to 500 MHz
- IF frequency range: 50 to 250 MHz
- Conversion gain: 9.3 dB
- Input IP3: 24.9 dBm
- Output IP3: 34.2 dBm
- Noise figure: 9.3 dB
- Integrated LO drivers
- Integrated low loss RF baluns
- High linearity IF amplifiers
- On-chip SPDT LO switch (greater than 60 dB LO-to-LO isolation)
- Small, MCM (36-pin, 6 x 6 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020)
Description
The SKY73085-11 is a fully integrated diversity mixer that includes Local Oscillator (LO) drivers, an LO switch, high linearity mixers, and large dynamic range Intermediate Frequency (IF) amplifiers. Low loss RF baluns have also been included to reduce design complications and lower system cost. The SKY73085-11 features an input IP3 of 24.9 dBm and a Noise Figure (NF) of 9.3 dB, making the device an ideal solution for high dynamic range systems such as 2G/3G base station receivers. The LO switch provides more than 60 dB of isolation between LO inputs and supports the switching time required for GSM/EDGE base stations. The SKY73085-11 is manufactured using a robust silicon BiCMOS process and has been designed for optimum long-term reliability. The SKY73085-11 diversity downconversion mixer is provided in a compact, 36-pin Multi-Chip Module (MCM). 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. S643 RFA RFB IFB+ IFB– LO1 LO2 LO_SEL (Switch Enable) IFA+ IFA– Figure 1. SKY73085-11 Block Diagram
Figure 2. SKY73085-11 Pinout – 36-Pin MCM Table 1. SKY73085-11 Signal Descriptions
1 RFA RF channel A input 19 LO1 Local oscillator #1 input
2 NC No connect 20 GND Ground
3 GND Ground 21 VCC5 DC supply, +5 V
4 VCC1 DC supply, +5 V 22 GND Ground
5 GND Ground 23 LO_SEL Local oscillator switch select
6 VCC2 DC supply, +5 V 24 GND Ground
7 GND Ground 25 GND Ground
8 NC No connect 26 GND Ground
9 RFB RF channel B input 27 LO2 Local oscillator #2 input
10 VCC3 DC supply, +5 V 28 NC No connect
11 NC No connect 29 RIFA IF channel A bias control
12 GND Ground 30 VCC6 DC supply, +5 V
13 IFB+ IF channel B positiv e output 31 NC No connect
14 IFB– IF channel B negative output 32 IFA+ IF channel A positive output
15 NC No connect 33 IFA– IF channel A negative output
16 VCC4 DC supply, +5 V 34 GND Ground
17 RIFB IF channel B bias control 35 NC No connect
18 NC No connect 36 VCC7 DC supply, +5 V
linearity passive mixer, and a low noise IF amplifier. inputs for frequency hopping applications (i.e., GSM). Insertion Point (IIP3) and linearity performance. excellent port-to-port isolation. require a supply voltage connection using inductive chokes. slight degradation in performance. illustrated in Figures 3 through 28. Table 2. SKY73085-11 Absolute Maximum Ratings parameters set at or below their nominal value. Nominal thermal resistance (juncti on to center ground pad) is 5.1 °C/W.
Table 3. SKY73085-11 Recommended Operating Conditions Table 4. SKY73085-11 Electrical Specifications (1 of 2)
of the SKY73085-11 Evaluation Board is shown in Figure 31.
- Paths to ground should be made as short as possible.
- The ground pad of the SKY73085-11 has special electrical
- Skyworks recommends including external bypass capacitors
on the VCC voltage inputs of the device.
- Components L5, L6, L14, and L15 (see Figure 31) are high-Q
currents in excess of 200 mA DC.
- Components R1 and R2 (see Figure 31) set the bias current
Figure 32. Figure 33 shows the package dimensions for the subjected to high temperature during solder assembly. Packages, document number 101752. done manually or in a production solder reflow environment. Application Note, Tape and Reel, document number 101568.
Figure 29. SKY73085-11 Evaluation Board Assembly Diagram
Figure 30. SKY73085-11 Evaluation Board Layer Detail
corresponding component symbol shown here. Figure 31. SKY73085-11 Evaluation Board Schematic
mask opening of the package. mask, 30-35 μm Cu plating recommended. planes for optimum electrical performance.
0.25 Typ
Figure 32. PCB Layout Footprint for the SKY73085-11 6 x 6 mm MCM
0.15 A B C
0.2 A B C
Figure 33. SKY73085-11 36-Pin MCM Package Dimensions
- Carrier tape: black conductive polystyrene
- Cover tape material: transparent conductive PSA
- Cover tape size: 9.3 mm width
- All dimensions are in millimeters
- Pin 1 orientation is in top left corner for the following Skyworks products:
Figure 34. SKY73085-11 Tape and Reel Dimensions
DATA SHEET • SKY73085-11 DOWNCONVERSION MIXER Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 16 April 1, 2009 • Skyworks Proprietary a nd Confidential information • Products and Product Information are Subject to Change Without Notice • 200990B
Ordering Information
Model Name Manufacturing Part Numb er Evaluation Kit Part Number SKY73085-11 390-500 MHz Downconversion Mixer SKY73085-11 (Pb-free package) TW17-D650 Copyright © 2008, 2009 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.