SKY65088 - Skyworks Solutions, Inc.

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201154A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 14, 2009 1

PRELIMINARY DATA SHEET

SKY65088: 1.575 GHz GPS Low Noise Amplifier

Applications

xGPS radio receivers

Features

xSmall signal gain: 16 dB

xLow Noise Figure: 1.0 dB

xIIP3: 0 dBm

xMinimal number of external components required

xPower shutdown mode

xIP1dB: –16 dBm

xInput/output impedance internally matched to 50 Ω

xSingle DC supply: 1.8 to 3.6 V

xSmall, QFN (6-pin, 1.5 x 2 mm) package (MSL3, 250 qC per

JEDEC J-STD-020)

Input

Match

Bias/Control

LNA

RF_IN RF_OUT

ENABLEVBIAS VCC

Output

Match

Figure 1. SKY65088 Block Diagram

Description

The SKY65088 is a Microwave Monolithic Integrated Circuit

(MMIC) Global Positioning System (GPS) Low Noise Amplifier

(LNA). The device has superior Noise Figure (NF), excellent gain,

and a high 1 dB Input Compression Point (IP1dB).

The SKY65088 is optimized to operate at 1.575 GHz, which

makes it ideal for GPS radio receiver applications.

The device is fabricated using Skyworks high reliability SiGe

CMOS technology. The LNA uses Surface Mount Technology

(SMT) in the form of a 1.5 x 2.0 mm Quad Flat No-Lead (QFN)

package, which allows for a highly manufacturable and low-cost

solution.

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.

RF_IN

VBIAS

GND

RF_OUT

VCC

ENABLE

Figure 2. SKY65088 Pinout – 6-Pin QFN

(Top View)

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

2 October 14, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201154A

Table 1. SKY65088 Signal Descriptions

Pin # Name Description Pin # Name Description

1 RF_IN RF input 4 ENABLE Power on/off control

2 VBIAS Bias voltage 5 VCC Source voltage

3 GND Ground 6 RF_OUT RF output

Table 2. SKY65088 Absolute Maximum Ratings

Parameter Symbol Minimum Typical Maximum Units

RF input power PIN 0 dBm

Supply voltage VCC 1.8 3.0 3.6 V

Supply current ICC 6 12 mA

Storage temperature TSTG –65 125 qC

Junction temperature TJ 150 qC

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. Exceeding any of the limits listed here may result in permanent damage to the device.

CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device

must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body

or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.

Table 3. SKY65088 Recommended Operating Conditions

Parameter Symbol Minimum Typical Maximum Units

RF input power PIN –85 dBm

Supply voltage (measured at terminals of

Evaluation Board)

VCC 1.8 3.0 V

Frequency range f 1500 1575 1600 MHz

Case operating temperature TC –40 +85 qC

Electrical and Mechanical Specifications

The absolute maximum ratings of the SKY65088 are provided in

Table 2. The recommended operating conditions are specified in

Table 3 and electrical specifications are provided in Tables 4 and

Performance characteristics for the SKY65088 are illustrated in

Figures 3 through 11.

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201154A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 14, 2009 3

Table 4. SKY65088 Electrical Specifications (Note 1)

(VCC = 3 V, TC= +25

C, Test Frequency = 1.575 GHz, Unless Otherwise Noted)

Parameter Symbol Test Condition Min Typical Max Units

Small signal gain G 16 dB

1 dB Input Compression Point IP1dB –16 dBm

Noise Figure NF 1.0 dB

Third Order Input Intercept Point IIP3 0 dBm

Isolation |S12| 30 dB

Input return loss |S11| 9.4 dB

Output return loss |S22| 18.1 dB

Current consumption IDD 6.5 mA

Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges. Operation at elevated

temperatures may reduce reliability of the device.

Table 5. SKY65088 Electrical Specifications (Note 1)

(VCC = 2.8 V, TC= +25

C, Test Frequency = 1.575 GHz, Unless Otherwise Noted)

Parameter Symbol Test Condition Min Typical Max Units

Small signal gain G 15.9 dB

1 dB Input Compression Point IP1dB –16.75 dBm

Noise Figure NF 1.0 dB

Third Order Input Intercept Point IIP3 +1.6 dBm

Isolation |S12| 30 dB

Input return loss |S11| 9.45 dB

Output return loss |S22| 17.75 dB

Current consumption IDD 6.5 mA

Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges. Operation at elevated

temperatures may reduce reliability of the device.

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

4 October 14, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201154A

Typical Performance Characteristics

–9.7

–9.6

–9.5

–9.4

–9.3

–9.2

–9.1

1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600

Frequency (MHz)

|S11| (dB)

Figure 3. Input Return Loss vs Frequency

(Vcc = 3.0 V)

–29.4

–29.3

–29.2

–29.7

–29.6

–29.5

–30.0

–29.9

–30.2

–30.1

–29.8

1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600

Frequency (MHz)

|S12| (dB)

Figure 5. Reverse Isolation vs Frequency

(Vcc = 3.0 V)

–9.7

–9.6

–9.5

–9.4

–9.3

–9.2

–9.1

1480 1500 1520 1540 1560 1580 1600 1620

Frequency (MHz)

|S11| (dB)

Figure 7. Input Return Loss vs Frequency

(Vcc = 2.8 V)

–18.8

–19.0

–18.6

–18.4

–18.2

–18.0

–17.8

–17.6

1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600

Frequency (MHz)

|S22| (dB)

Figure 4. Output Return Loss vs Frequency

(Vcc = 3.0 V)

16.1

16.2

16.3

15.8

15.9

16.0

15.6

15.7

1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600

Frequency (MHz)

|S21| (dB)

Figure 6. Small Signal Gain vs Frequency

(Vcc = 3.0 V)

–18.6

–18.4

–18.2

–18.0

–17.8

–17.6

–17.4

1480 1500 1520 1540 1560 1580 1600 1620

Frequency (MHz)

|S22| (dB)

Figure 8. Output Return Loss vs Frequency

(Vcc = 2.8 V)

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201154A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 14, 2009 5

–29.2

–29.0

–28.8

–29.8

–29.6

–29.4

–30.0

–30.2

–30.4

1480 1500 1520 1540 1560 1580 1600 1620

Frequency (MHz)

|S12| (dB)

Figure 9. Reverse Isolation vs Frequency

(Vcc = 2.8 V)

16.2

16.3

16.4

15.9

16.0

16.1

15.7

15.8

1480 1500 1520 1540 1560 1580 1600 1620

Frequency (MHz)

|S21| (dB)

Figure 10. Small Signal Gain vs Frequency

(Vcc = 2.8 V)

1.11

1.13

1.15

1.05

1.07

1.09

1.01

1.03

0.99

0.95

0.97

1480 1500 1520 1540 1560 1580 1600 1620

Frequency (MHz)

Noise Figure (dB)

2.8 V

3.0 V

Figure 11. Noise Figure vs Frequency Over Voltage

Evaluation Board Description

The SKY65088 Evaluation Board is used to test the performance

of the SKY65088 low noise amplifier. An assembly drawing for the

Evaluation Board is shown in Figure 12 and the layer detail is

provided in Figure 13. The Evaluation Board schematic diagram is

shown in Figure 14. Table 6 provides the Bill of Materials (BOM)

list for Evaluation Board components.

Package Dimensions

Package dimensions for the 6-pin QFN are shown in Figure 15,

and tape and reel dimensions are provided in Figure 16.

Package and Handling Information

Since the device package is sensitive to moisture absorption, it is

baked and vacuum packed before shipping. Instructions on the

shipping container label regarding exposure to moisture after the

container seal is broken must be followed. Otherwise, problems

related to moisture absorption may occur when the part is

subjected to high temperature during solder assembly.

THE SKY65088 is rated to Moisture Sensitivity Level 3 (MSL3) at

250 qC. It can be used for lead or lead-free soldering. For

additional information, refer to the Skyworks Application Note,

PCB Design and SMT Assembly/Rework Guidelines for MCM-L

Packages, document number 101752.

Care must be taken when attaching this product, whether it is

done manually or in a production solder reflow environment.

Production quantities of this product are shipped in a standard

tape and reel format. For packaging details, refer to the Skyworks

Application Note, Discrete Devices and IC Switch/Attenuators

Tape and Reel Package Orientation, document number 200083.

DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

6 October 14, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201154A

S1727

C2 C4

Figure 12. SKY65088 Evaluation Board Assembly Diagram

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201154A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 14, 2009 7

*** TBD ***

Figure 13. SKY65088 Evaluation Board Layer Detail

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

8 October 14, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201154A

S1725

RF Input

VCC

22 nF

10 nF

VCC

Enable

12345

5-Header

RF_IN RF Output

VBIAS

GND

RF_OUT

VCC

ENABLE

VCC

10 nF

10 pF

Enable

Figure 14. SKY65088 Evaluation Board Schematic

Table 6. SKY65088 (QFN Package) Evaluation Board Bill of Materials

Component Size Value Vendor Part Number

C1 22 nF

C2 10 nF

C3 10 nF

C4 10 pF

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201154A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 14, 2009 9

Top View Side View Bottom View

0.10 C

Pin 1

Indicator

0.10 C

2X R0.05

0.08 C

6X 3

0.10

2.0

1.5

0.5

CSeating Plane

Detail B

Detail C

0.02 +0.03/–0.02

0.25 +0.05/–0.07

1.10 +0.10/–0.15

1.20 +0.10/–0.15

Pin 1 Ind.

Exposed Pad

2X 0.05

6X 0.20 Nom.

0.41/0.50

0.250 ± 0.10

0.10 C A B

Detail C

6 Places

Detail B

All measurements are in millimeters.

Dimensioning and tolerancing according to ASME Y14.5M-1994.

Coplanarity applies to the exposed heat sink slug as well as the terminals..

Plating requirement per source control drawing (SCD) 2504.

Dimension applies to metalized terminal and is measured between 0.15 mm and 0.30 mm from terminal tip.

S1528

Figure 15. SKY65088 6-Pin QFN Package Dimensions

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

10 October 14, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201154A

*** TBD ***

Figure 16. SKY65088 Tape and Reel Dimensions

PRELIMINARY DATA SHEET • SKY65088 LOW NOISE AMPLIFIER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201154A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 14, 2009 11

Ordering Information

Model Name Manufacturing Part Number Evaluation Kit Part Number

SKY65088 GPS Low Noise Amplifier SKY65088 (Pb-free package) *** TBD ***

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