SKY12322-86LF-EVB - SKYWORKS SOLUTIONS

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

200218E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 30, 2018April 30, 2018April 30, 2018 1

DATA SHEET

SKY12322-86LF: 0.5 to 4.0 GHz Five-Bit Digital Attenuator

(0.5 dB LSB)

Applications

 Transceiver transmit automatic level control or receive

automatic gain control in GSM, CDMA, WCDMA, WLAN,

Bluetooth®, or ZigBee® land mobile radio base stations or

terminal equipment

 General-purpose signal attenuation in telecommunications and

instrumentation applications

Features

 Broadband operation: 0.5 to 4.0 GHz

 Positive voltage operation: 2.7 to 5.5 V

 Low current consumption: <100 μA @ 3 V

 LSB attenuation: 0.5 dB

 Attenuation range: 15.5 dB

 High IIP3: +45 dBm

 Low insertion loss: 1.2 dB @ 900 MHz

 Small MSOP-10 (10-pin, 3 x 3 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.

Description

The SKY12322-86LF is a monolithic, GaAs binary-weighted

five-bit single positive control voltage digital attenuator. The

device operates from 0.5 to 4.0 GHz. DC power consumption is

very low, typically 100 μA maximum, with a control and supply

voltage of 3 V.

The SKY12322-86LF has an LSB of 0.5 dB and total attenuation of

15.5 dB. The two RF ports are bilateral; each can be used as the

RF input or the RF output. An external supply voltage of 2.7 to

5.5 V is required.

58 dB

4 dB

2 dB

1 dB

0.5 dB

S2379

Figure 1. SKY12322-86LF Block Diagram

The SKY12322-86LF is comprised of five cascaded fixed

attenuators, each of which has a shunt bypass switch. Beginning

at the 0.5 dB LSB, each succeeding fixed attenuator produces

twice the attenuation of the preceding stage.

The state of each bypass switch is controlled by the logic level

voltage applied to the associated control voltage input. A logic

high voltage closes the associated switch, which bypasses that

fixed attenuator stage; a logic low opens the switch to force the

input signal to that stage through the associated attenuator.

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.

DISCONTINUED

DATA SHEET • SKY12322-86LF: 5-BIT DIGITAL ATTENUATOR

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

2 April 30, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200218E

S2381

GND

Figure 2. SKY12322-86LF Pinout

(Top View)

Table 1. SKY12322-86LF Signal Descriptions

Pin Name Description Pin Name Description

1 V1 High impedance control voltage input for

0.5 dB weighted bit (LSB) 6 J2 RF input or output port, supply voltage input

2 V2 High impedance control voltage input for

1 dB weighted bit 7 GND Ground

3 V3 High impedance control voltage input for

2 dB weighted bit 8 GND Ground

4 V4 High impedance control voltage input for

4 dB weighted bit 9 GND Ground

5 V5 High impedance control voltage input for

8 dB weighted bit (MSB) 10 J1 RF input or output port

Electrical and Mechanical Specifications

The absolute maximum ratings of the SKY12322-86LF are

provided in Table 2. Electrical specifications are provided in

Table 3.

Typical performance characteristics of the SKY12322-86LF are

illustrated in Figures 3 through 6.

The state of the SKY12322-86LF is determined by the logic

provided in Table 4.

DISCONTINUED

DATA SHEET • SKY12322-86LF 5-BIT DIGITAL ATTENUATOR

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

200218E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 30, 2018 3

Table 2. SKY12322-86LF Absolute Maximum Ratings1

Parameter Symbol Minimum Maximum Units

RF input power (VCTL = 0/8 V) PIN 1 W for f > 500 MHz

0.5 W for f < 500 MHz

Supply voltage VS 3 8 V

Control voltage VCTL –0.2 +8.0 V

Operating temperature TOP –40 +85 C

Storage temperature TSTG –65 +150 C

1 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.

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.

Table 3. SKY12322-86LF Electrical Specifications1

(VCTL = 0/3 V, TOP = +25 C, PIN = 0 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted)

Parameter Symbol Test Condition Min Typ Max Units

Insertion loss IL

0.5 to 1.0 GHz

1.0 to 2.0 GHz

2.0 to 3.0 GHz

3.0 to 4.0 GHz

1.4

1.5

2.3

3.0

2.0

2.5

3.0

3.5

Attenuation range2 15.5 dB

Attenuation accuracy2

0.5 to 1.0 GHz

1.0 to 3.0 GHz

3.0 to 4.0 GHz

±(0.2 + 3% of attenuation setting)

±(0.3 + 5% of attenuation setting)

±(0.5 + 5% of attenuation setting)

Return loss RL 0.5 to 4.0 GHz 10 20 dB

Switching characteristics:

Rise/fall time

On/off time

Video feedthrough

10/90% or 90/10% RF

50% VCTL to 90/10% RF

TRISE = 1 ns,

bandwidth = 500 MHz

150

300

Input power for 1 dB compression IP1dB

0.9 to 4.0 GHz:

VCTL = 0 to 3 V,

VCTL = 0 to 5 V

+21

+27

dBm

Third order input intercept point IIP3

For two-tone input power,

+5 dBm/tone, Δf = 1 MHz,

0.9 to 4.0 GHz:

VCTL = 0 to 3 V,

VCTL = 0 to 5 V

+45

dBm

Thermal resistance ΘJC 25 C/W

Supply voltage VS 2.8 3.0 8.0 V

Control voltage:

Low

High

VCTL

VLOW

VHIGH

–0.2

VS – 0.2

+0.2

VS + 0.2

Control current ICTL

VCTL = 0 V

VCTL = 3 V

VCTL = 5 V

100

200

μA

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

2 Attenuation referenced to insertion loss.

DISCONTINUED

DATA SHEET • SKY12322-86LF: 5-BIT DIGITAL ATTENUATOR

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

4 April 30, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200218E

Typical Performance Characteristics

(VS = 5 V, VCTL = 0 to 3 V, TOP = +25 C, CBLK = 39 pF, PIN = 0 dBm, Characteristic Impedance [Zo] = 50 Ω, , Unless Otherwise Noted)

-5

-4

-3

-2

-1

Frequency (GHz)

Insertion Loss (dB)

0 1.5 2.5 3.5 4.50.5 1.0 2.0 3.0 4.0

Figure 3. Insertion Loss vs Frequency

-2

-1

Frequency (GHz)

Attenuation Error (dB)

0 1.5 2.5 3.5 4.50.5 1.0 2.0 3.0 4.0

0.5 dB

1.0 dB

2.0 dB

4.0 dB

8.0 dB

15.5 dB

Figure 5. Attenuation vs Frequency

(Normalized to Insertion Loss)

-20

-15

-10

-5

Frequency (GHz)

Attenuation (dB)

0 1.5 2.5 3.5 4.50.5 1.0 2.0 3.0 4.0

0.5 dB

1.0 dB

2.0 dB

4.0 dB

8.0 dB

15.5 dB

Figure 4. Attenuation vs Frequency

(Normalized to Insertion Loss)

-20

-15

-30

-25

-40

-35

-10

-5

Frequency (GHz)

Return Loss (dB)

0 1.5 2.5 3.5 4.50.5 1.0 2.0 3.0 4.0

Insertion Loss

0.5 dB

1.0 dB

2.0 dB

4.0 dB

8.0 dB

15.5 dB

Figure 6. Insertion Loss vs Frequency

DISCONTINUED

DATA SHEET • SKY12322-86LF 5-BIT DIGITAL ATTENUATOR

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

200218E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 30, 2018 5

Table 4. SKY12322-86LF Truth Table1

Nominal

Attenuation

(Pin 1)

(Pin 2)

(Pin 3)

(Pin 4)

(Pin 5)

Reference insertion loss VHIGH VHIGH VHIGH VHIGH VHIGH

0.5 dB VLOW VHIGH VHIGH VHIGH VHIGH

1.0 dB VHIGH VLOW VHIGH VHIGH VHIGH

2.0 dB VHIGH VHIGH VLOW VHIGH VHIGH

4.0 dB VHIGH VHIGH VHIGH VLOW VHIGH

8.0 dB VHIGH VHIGH VHIGH VHIGH VLOW

15.5 dB VLOW VLOW VLOW VLOW VLOW

1 V

HIGH = +3 V to 5 V. VLOW = 0 V to +0.2 V.

This table shows the logic required for the major bits and full attenuation. Bit states need to be used in combination to set the sum of the bits selected.

Evaluation Board Description

The SKY12322-86LF Evaluation Board is used to test the

performance of the SKY12322-86LF digital attenuator.

An assembly drawing for the Evaluation Board is shown in Figure

7 and an Evaluation Board schematic diagram is shown in

Figure 8.

Figure 7. SKY12322-86LF Evaluation Board Assembly Diagram

S2382

0.5 dB Control Voltage (LSB)

1 dB Control Voltage

2 dB Control Voltage

4 dB Control Voltage

8 dB Control Voltage (MSB)

47 pF

10 kΩ

GND

47 pF

Figure 8. SKY12322-86LF Evaluation Board Schematic Diagram

DISCONTINUED

DATA SHEET • SKY12322-86LF: 5-BIT DIGITAL ATTENUATOR

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

6 April 30, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200218E

Package Dimensions

Package dimensions are shown in Figure 9, and tape and reel

dimensions are provided in Figure 10.

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 SKY12322-86LF is rated to Moisture Sensitivity Level 1

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

For additional information, refer to the Skyworks Application

Note, Solder Reflow Information, document number 200164.

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.

Pin 10

Pin 1

Indicator

0.034

(0.86 mm)

± 0.004

(0.10 mm)

0.118 (3.00 mm)

± 0.006 (0.15 mm)

0.193

(4.90 mm)

± 0.006

(0.15 mm)

0°–6°

8°–16°

0.118 (3.00 mm)

± 0.006 (0.15 mm)

0.022 (0.55 mm)

± 0.006 (0.15 mm)

0.006 (0.15 mm) Max.

0.002 (0.05 mm) Min.

0.0197

(0.500 mm)

BSC

0.009 (0.23 mm)

Ref.

0.043

(1.09 mm)

Max.

S2380

Figure 9. SKY12322-86LF Package Dimensions

DISCONTINUED

DATA SHEET • SKY12322-86LF 5-BIT DIGITAL ATTENUATOR

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

200218E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 30, 2018 7

Notes:

1. Carrier tape: black conductive polystyrene.

2. Cover tape material: transparent conductive HSA.

3. Cover tape size: 9.2 mm width.

4. Ten sprocket hole pitch cumulative tolerance = ±0.20 mm.

5. All measurements are in millimeters.

6. Standard reel size is 7 inches. Standard reel quantity is 3000 pcs.

12.00

0.30

4.00 (see Note 4)

8.00 ± 0.10

5.50 ± 0.05

2.00 ± 0.05

5.20 ± 0.10

1.20

4.20

3.40

0.30 ± 0.05

1.75 ± 0.10

1.60 ± 0.10 (Ko)

3.30 ± 0.10 (Bo)

Detail A

Detail B Pin 1

∅1.50+ 0.10/–0.00

∅1.50 Min.

S2348

R0.30 Typ

Figure 10. SKY12322-86LF Tape and Reel Dimensions

DISCONTINUED

DATA SHEET • SKY12322-86LF: 5-BIT DIGITAL ATTENUATOR

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

8 April 30, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200218E

Ordering Information

Part Number Product Description Evaluation Board Part Numbers

SKY12322-86LF: 0.5 to 4.0 GHz Five-Bit Digital Attenuator (0.5 dB LSB) SKY12322-86EK1

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 and the Skyworks symbol are trademarks or registered trademarks of Skyworks Solutions, Inc. or its subsidiaries 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.

DISCONTINUED