SKY13348-374LF Datasheet by Skyworks Solutions Inc.

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DATA SHEET

SKY13348-374LF: 0.5 to 6.0 GHz SPDT Switch,

50 Ω Terminated

Applications

 WiMAX 802.16

 WLAN 802.11 a/b/g/n

Features

 50 Ω terminated RF outputs from 0.5 to 6.0 GHz

 Low insertion loss: 0.6 dB @ 2.5 GHz

 High isolation: 27 dB @ 2.5 GHz

 IP1dB: +37 dBm

 Small, MLPD (6-pin, 1.5 x 1.5 mm) package

(MSL1, 260 C per JEDEC J-STD-020)

Skyworks Green

products are compliant with

all applicable legislation and are halogen-free.

For additional information, refer to Skyworks

Definition of Green

, document number

SQ04-0074.

RFC

GND

S1532

Figure 2. SKY13348-374LF Pinout

(Top View)

RFC

50 Ω50 Ω

S1891

Figure 1. SKY13348-374LF Block Diagram

Description

The SKY13348-374LF is a pHEMT GaAs Single-Pole, Double-

Throw (SPDT) high-power switch with 50 Ω terminated outputs.

The high-linearity performance and low insertion loss achieved by

the SKY13348-374LF make it an ideal choice for WiMAX and

WLAN applications such as 802.11 a/b/g/n where low loss, high

isolation, and excellent linearity are key requirements.

The switch is manufactured in a compact, 1.5 x 1.5 mm, 6-pin

exposed pad plastic Micro Leadframe Package Dual (MLPD)

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.

DATA SHEET • SKY13348-374LF: SPDT SWITCH

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Table 1. SKY13348-374LF Signal Descriptions

Pin Name Description Pin Name Description

1 V1

DC control voltage. A logic high voltage

enables an insertion loss path between the

RFC and J1 pins.

4 J2

RF output: 50 Ω terminated when in

isolation state. Must be DC blocked.

2 RFC RF common input. Must be DC blocked. 5 GND Ground

3 V2

DC control voltage. A logic high voltage

enables an insertion loss path between the

RFC and J2 pins.

6 J1

RF output: 50 Ω terminated when in

isolation state. Must be DC blocked.

Functional Description

The SKY13348-374LF symmetric SPDT switch is designed using

an advanced 0.5-micron GaAs pHEMT foundry process. The

switch features linear power handling up to 7 watts with 50 Ω

terminated outputs. Switching is controlled by two control voltage

inputs, V1 and V2 (pins 1 and 3, respectively). Depending on the

logic voltage level applied to the control pins, the RFC pin is

connected to one of the two switched RF outputs, J1 or J2, using

a low insertion loss path, while the path between the RFC pin and

the other RF pin is in a high isolation state.

DC blocking capacitors are required on all RF ports of the switch,

and determine the lower frequency return loss and insertion loss

of the insertion loss state. The off RF output is internally

terminated to 50 Ω. The low frequency impedance is determined

by an on-chip capacitor and cannot be extended below 500 MHz

using external components. The switch is fully operational below

500 MHz. The off port impedance appears as a reflective open. If

operated below 100 MHz, the power handling and linearity of the

device can be degraded even at high control voltage levels.

If V1 and V2 are biased to both high or low logic levels, the switch

appears as a very poor two-way power splitter with low return

loss on all RF ports. The switch is not damaged if placed in these

states. In normal switching logic modes, V1 and V2 can be set

between 1.8 and 5.0 V.

The SKY13348-374LF is designed for medium to high power,

dual-band WLAN, WIMAX, and LTE switching applications. The

device can also be used in a variety of other applications that

require high performance RF switching. The high P0.1dB and

advance proprietary fabrication process enables an exceptional

third order input intercept point (IIP3), error vector magnitude

(EVM), and harmonic performance. Excellent insertion loss ,

return loss, and isolation are maintained up to 6 GHz.

Electrical and Mechanical Specifications

The absolute maximum ratings of the SKY13348-374LF are

provided in Table 2. Electrical specifications are provided in

Table 3.

Typical performance characteristics of the SKY13348-374LF are

illustrated in Figures 3 through 8.

The state of the SKY13348-374LF is determined by the logic

provided in Table 4.

Table 2. SKY13348-374LF Absolute Maximum Ratings

Parameter Symbol Minimum Maximum Units

Control voltage VCTL 6 V

Input power PIN +38 dBm

Storage temperature TSTG -40 +125 C

Operating temperature TOP -40 +85 C

ESD HANDLING: 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 when handling or transporting. Static charges may easily produce

potentials of several kilovolts on the human body or equipment, which can discharge without detection.

Industry-standard ESD handling precautions should be used at all times.

DATA SHEET • SKY13348-374LF: SPDT SWITCH

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Table 3. SKY13348-374LF Electrical Specifications1

(VCTL = 0 V and +3.0 V, TOP = +25 C, PIN = 0 dBm, Characteristic Impedance [ZO] = 50 Ω, CBLK = 47 pF, Unless Otherwise Noted)

Parameter Symbol Test Condition Min Typ Max Units

Insertion loss IL

All paths

500 MHz to 2.70 GHz

2.70 to 3.80 GHz

3.80 to 5.85 GHz

0.60

0.70

1.00

0.75

0.85

1.15

Isolation Iso

All paths

500 MHz to 2.70 GHz

2.70 to 3.80 GHz

3.80 to 5.85 GHz

Input return loss |S11| 500 MHz to 6.0 GHz 10 15 dB

Output return loss (off port return loss) |S22|

|S33|

All ports

2.00 to 2.70 GHz

3.30 to 3.80 GHz

4.90 to 5.85 GHz

1 dB input compression point IP1dB

All ports, VCTL = 3.0 V

2.30 to 2.70 GHz

3.30 to 3.80 GHz

4.90 to 5.85 GHz

+35

+37

dBm

Third order input intercept point IIP3

PIN = +25 dBm/tone,

1 MHz spacing,

VCTL = 3.0 V

2.4 GHz

3.8 GHz

5.8 GHz

Error vector magnitude, WLAN EVM_WLAN

Input power for 2.5%

error, WLAN 2.45 GHz,

802.11g OFDM, 54 Mbps,

64 QAM, VCTL = 3.0 V +28 +29 dBm

Error vector magnitude, WiMAX EVM_WIMAX

Input power for 2.5%

error, WiMAX 5.8 GHz,

OFDMA, 64 QAM,

VCTL = 3.0 V +28 +29 dBm

2nd harmonic 2fo

PIN = +25 dBm,

VCTL = 3.0 V

900 MHz

1.8 GHz

2.4 GHz

3.8 GHz

5.8 GHz

+75

+69

+80

dBc

3rd harmonic 3fo

PIN = +25 dBm,

VCTL = 3.0 V

900 MHz

1.8 GHz

2.4 GHz

3.8 GHz

5.8 GHz

+75

+70

+69

+63

+75

+80

+75

+71

+80

dBc

Switching speed:

Off

tON

tFALL

50% control to 90% RF

50% control to 10% RF

100

250

1 Performance is guaranteed only under the conditions listed in this table.

DATA SHEET • SKY13348-374LF: SPDT SWITCH

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

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Typical Performance Characteristics

(VCTL = 0 V and +3.0 V, TOP = +25 C, PIN = 0 dBm, Characteristic Impedance [Zo] = 50 Ω, Cblk = 47 pF, Unless Otherwise Noted)

–0.2

–0.1

–0.3

–0.5

–0.7

–0.9

–1.1

–1.3

–1.4

–0.4

–0.6

–0.8

–1.0

–1.2

–1.5

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Insertion Loss (dB)

Frequency (GHz)

RFC to J1

RFC to J2

Figure 3. Insertion Loss vs Frequency

–10

–5

–15

–25

–35

–20

–30

–40

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Return Loss (dB)

Frequency (GHz)

RFC to J1

RFC to J2

Figure 5. Return Loss vs Frequency, On Ports

5.0

4.0

4.5

3.5

2.5

1.5

3.0

2.0

1.0

0.5

+20 +21 +22 +23 +24 +25 +26+27 +28 +29+30

EVM (%)

Input Power (dBm)

3 V

5 V

Figure 7. EVM vs Input Power

(WiMAX 802.16 64 QAM OFDMA, f = 3.8 GHz)

–10

–5

–15

–25

–35

–20

–30

–40

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Isolation (dB)

Frequency (GHz)

RFC to J1

RFC to J2

Figure 4.Isolation vs Frequency

–10

–5

–15

–25

–35

–20

–30

–40

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Return Loss (dB)

Frequency (GHz)

J1, RFC to J2 IL State

J2, RFC to J1 IL State

Figure 6. Return Loss vs Frequency. Off Ports

5.0

4.0

4.5

3.5

2.5

1.5

3.0

2.0

1.0

0.5

+20 +21 +22 +23 +24 +25 +26+27 +28 +29+30

EVM (%)

Input Power (dBm)

3 V

5 V

Figure 8. EVM vs Input Power

(802.11g 64 QAM, 54 Mbps, f = 2.45 GHz)

DATA SHEET • SKY13348-374LF: SPDT SWITCH

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

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Table 4. SKY13348-374LF Truth Table1

V1 (Pin 1) V2 (Pin 3) Insertion Loss State

1 0 RFC to J1

0 1 RFC to J2

1 1 undefined

0 0 undefined

1 “1” = +2.5 V to +5.0 V. “0” = 0 V to +0.2 V. Any state other than described in this Table places the switch into an undefined state. An undefined state will not damage the device.

Evaluation Board Description

The SKY13348-374LF Evaluation Board is used to test the

performance of the SKY13348-374LF SPDT Switch. An Evaluation

Board schematic diagram is provided in Figure 9. An assembly

drawing for the Evaluation Board is shown in Figure 10.

Package Dimensions

The PCB layout footprint for the SKY13348-374LF is provided in

Figure 11. Typical part markings are shown in Figure 12. Package

dimensions are shown in Figure 13, and tape and reel dimensions

are provided in Figure 14.

Package and Handling Information

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 SKY13348-374LF is rated to Moisture Sensitivity Level 1

(MSL1) at 260 C. It can be used for lead or lead-free soldering.

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.

RFC

RF Output

RF Common

Input

RF Output

GND

S1545a

CBL

CBL = 47 pF for >1 GHz operation. Increase

value for lower frequency operation.

Exposed ground paddle should be grounded

for best performance.

DC Control

Voltage

DC Control

Voltage

Figure 9. SKY13348-374LF Evaluation Board Schematic

DATA SHEET • SKY13348-374LF: SPDT SWITCH

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RFC

S1534

Figure 10. SKY13348-374LF Evaluation Board Assembly Diagram

6X 0.55

0.50 Pitch

5 X 45

6X 0.35

7X Exposed Solder

Area

6X 0.25

0.60

0.05

0.20

0.35

0.70

1.20

S1535

Figure 11. SKY13348-374LF PCB Layout Footprint

(Top View)

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DATA SHEET • SKY13348-374LF: SPDT SWITCH

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Pin 1

Indicator

Skyworks

Part Number

Y0327

Figure 12. Typical Part Markings

(Top View)

201214-013

Figure 13. SKY13348-374LF Package Dimensions

DATA SHEET • SKY13348-374LF: SPDT SWITCH

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S1382a

Notes:

1. Carrier tape: black conductive polycarbonate or polystyrene.

2. Cover tape material: transparent conductive PSA.

3. Cover tape size: 5.4 mm width.

4. All measurements are in millimeters.

8.00 +0.30/–0.10

1.78 ± 0.05 (Bo)

1.78 ± 0.05 (Ao)

3.50 ± 0.05

ϕ1.50± 0.10

ϕ0.50± 0.05

4.00 ± 0.10

Pin 1

2.00 ± 0.05

0.20 ± 0.02 (T)

0.69 ± 0.05 (Ko)

1.75 ± 0.10

Max

Figure 14. SKY13348-374LF Tape and Reel Dimensions

DATA SHEET • SKY13348-374LF: SPDT SWITCH

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Ordering Information

Product Description Product Part Number Evaluation Kit Part Number

SKY13348-374LF: SPDT Switch SKY13348-374LF SKY13348-374LF-EVB

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