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April 2015

FSA553

Dual SPST Depletion Audio Switch with Negative

Swing

Features

Description

.

Dual SPST Depletion Switch

The FSA553 is a high-performance dual single-pole

single-throw (SPST x 2) audio switch. The Depletion

technology allows the device to conduct signals when

there is no V_CCavailable and to isolate signals when V_CC

is present. During signal conduction, the Depletion gate

control allows the FSA553 to achieve excellent THD+N

performance while consuming minimal power.

Normally Closed when VCC < 0.2 V

Switches Configurable through Select Pins

V_SW: -1.5 V to +1.5 V

R_ON: 0.4 Ω (Typical)

R_FLAT< 0.01 Ω (Typical)

Related Resources

THD+N: -104 dB (Typical)

OIRR: -78 dB (Typical)

. FSA553 Evaluation Board

Applications

.

Smart Phones

Tablets, Ultra Books

VCC

FSA553

#1S

Depletion

Gate

Control

Processor

#2S

1A

1B

2B

Audio

Sub-System

2A

Figure 1. Application Block Diagram

Ordering Information

Operating Top

Temperature Range Mark

Part Number

Package

Packing Method

9-Ball WLCSP, 0.40 mm Pitch, 1.215 x

1.385 x 0.58 mm (Nominal)

3000 Units on

Tape & Reel

FSA553UCX

-40 to 85°C NG

FSA553 • Rev. 1.4

www.fairchildsemi.com

Pin Configuration

1

2

3

2

3

1

VCC

1B

VCC

1A

1B

A

B

A

B

1.385mm

NC

2B

NC

2A

2B

C

GND

#1S

#2S

#1S

1.215mm

Top Through View

Bottom View

Figure 2. Top Through View

Figure 3. Bottom View

Pin Descriptions

Pin #

Name

Type

Description

A1

A3

C1

A2

B2

C2

B1

B3

C3

1A

1B

Depletion I/O

Control

A-Port of Switch 1 (Normally Closed)

B-Port of Switch 1 (Normally Closed)

Select to Enable/Disable SW1 (Enable LOW)

#1S

V_CC

NC

Power Supply / Control Power Supply Input

No Connect

Ground

Do Not Connect

GND

2A

Ground

Depletion I/O

Control

A-Port of Switch 2 (Normally Closed)

B-Port of Switch 2 (Normally Closed)

Select to Enable/Disable SW2 (Enable LOW)

2B

#2S

Table 1.

Switch Truth Table

#1S

V_CC

#2S

Switch 1

Switch 2

LOW

HIGH

X

ON

OFF

ON

OFF

ON

HIGH

LOW

HIGH

LOW

OFF

FSA553 • Rev. 1.4

www.fairchildsemi.com

2

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be

operable above the recommended operating conditions and stressing the parts to these levels is not recommended.

In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.

The absolute maximum ratings are stress ratings only.

Symbol

Parameter

Min. Max. Unit

V_CC

V_CNTRL

V_SW(ON)

V_SW(OFF)

I_SW

Supply/Control Voltage

Select Input Voltage

-0.5

-2.0

4.3

2.0

350

V

#1S, #2S

DC Switch I/O Voltage (Switch Conducting)

DC Switch I/O Voltage (Switch Isolated)

Switch I/O Current

1A, 1B, 2A, 2B

V

1A, 1B, 2A, 2B

V

V_CC=0 V (Switch Conducting)

mA

Pulsed at 1 ms Duration,

<10% Duty Cycle

I_SWPEAK

Peak Switch Current

500

mA

I/O Ports

7

4

Human Body Model, ANSI/ESDA/JEDEC

JS-001-2012

All Other Pins

ESD

Charged Device Model, JEDEC: JESD22-C101

IEC 61000-4-2 System

2

kV

Contact

Air Gap

8

15

+85

97

+150

T_A

Absolute Maximum Operating Temperature

Thermal Resistance, Junction-to-Ambient

Storage Temperature

-40

-65

°C

°C/W

°C

2S2P JEDEC std. PCB

_JA

T_STG

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended

operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not

recommend exceeding these ratings or designing to Absolute Maximum Ratings.

Symbol

Parameter

Min. Max. Unit

V_CC(ON)

Supply Voltage with Depletion Switch Conducting (1A=1B; 2A=2B)

0

0.2

3.0

V

Supply Voltage with Depletion Switch Isolated (1A≠1B; 2A≠2B;

#1S=#2S=HIGH)

V_CC(OFF)

1.5

V_SW(ON)

V_SW(OFF)

V_CNTRL

DC Switch I/O Voltage

Select Input Voltage

Switch Conducting

Switch Isolated

#1S, #2S

-1.5

0

1.5

3.0

V

FSA553 • Rev. 1.4

www.fairchildsemi.com

3

DC Electrical Characteristics

Unless otherwise specified, typical values are for T_A=25°C.

T_A=-40°C to

+85°C

Symbol

Parameter

Condition

V_CC(V)

Unit

Min. Typ. Max.

V_CC(HYS)Supply Voltage Hysteresis

450

mV

µA

nA=-0.5 V, 0.5 V, 1.5 V, -1.5 V,

nB=Float, #1S=#2S=Float

I_ON

Switch ON Leakage Current

Switch OFF Leakage Current

0

0.1

0.5

nA=-0.5 V, 0.5 V, 1.5 V, -1.5 V,

nB=GND, #1S=#2S=V_CC

I_OFF

1.8

µA

Increase in I_CCfor each

Select Pin

#1S=V_CC, #2S=1.2 V,

#1S=1.2 V, #2S=V_CC

I_CCT

R_ON

3.0

0

7

µA

Switch On Resistance

ΔR_ONDifference, Channel to

Channel

I_SW=100 mA, V_SW=-1.5 V to +1.5 V

0.40 0.80

Ω

0

0.01

Ω

R_FLAT(ON)On Resistance Flatness

0

0.01

5.0

Ω

R_PD

R_PU

V_CCPull-Down Resistance

Select Pull-Up Resistance

<0.2

MΩ

<0.2

3.0

Switch Isolated

1.5 – 3.0

0.2

80

#1S=#2S=0 V

or Float

I_CC

Quiescent Supply Current

µA

Switch Conducting

0.5

V_IH

V_IL

Select Pin Input High Voltage

Select Pin Input Low Voltage

1.5 – 3.0

1.2

V

0.55

FSA553 • Rev. 1.4

www.fairchildsemi.com

4

AC Electrical Characteristics

Unless otherwise specified, typical values are for T_A=25°C.

T_A=- 40°C to +85°C

Symbol

Parameter

Condition

V_CC(V)

Unit

Min.

Typ. Max.

V_SW=1.5 V

1.8 → 0

450

350

250

150

350

300

150

50

Turn-On Time V_CCR_L=32 Ω, C_L=10 pF,

to Output #nS=Float, Figure 4

t_ON

t_OFF

t_ONS

µs

V_SW=-1.5 V 1.8 → 0

V_SW=1.5 V 0 → 1.8

V_SW=-1.5 V 0 → 1.8

Turn-Off Time V_CCR_L=32 Ω, C_L=10 pF,

to Output

#nS=Float, Figure 4

V_SW=1.5 V

V_SW=-1.5 V

V_SW=1.5 V

V_SW=-1.5 V

1.8

0

Turn-On Time

Select Pin

R_L=32 Ω, C_L=10 pF,

#nS=V_CC→ 0, Figure 5

Turn-Off Time

Select Pin

R_L=32 Ω, C_L=10 pF,

#nS=0 → V_CC, Figure 5

t_OFFS

BW

-3 dB Bandwidth

V_SW= 600 mV_p-p, R_L=50 Ω; C_L=5 pF,

200

MHz

dB

Non A-

weighted

-104

-107

-82

Total Harmonic V_SW=1 V_RMS, R_L=32 Ω,

Distortion + Noise f=1 kHz

THD+N

0

A-weighted

dB

V_SW= 0.707 V_RMS, R_L=32 Ω, f=20 Hz to

100 kHz, Figure 6

O_IRR

Port Off Isolation

Cross Talk

1.8

-70

dB

V_SW=1 V_RMS, f=100 kHz, R_L=32 Ω

V_SW=1 V_RMSf = 20 kHz, R_L=32 Ω

-75

-100

-80

X_TALK

dB

217Hz

Switch Isolating,

V_Ripple=V_CC+300 mV_p-p

R_L=32 Ω

Power Supply

Rejection Ratio

1 kHz

-77

PSRR

,

1.8

20 kHz

-73

Capacitance

Unless otherwise specified, typical values are for T_A=25°C.

T_A=- 40°C to +85°C

Symbol

Parameter

Condition

V_CC(V)

Unit

Min.

Typ. Max.

C_ON

On Capacitance

Off Capacitance

V_SW=400 mV_PP, f=1 MHz,

0

21

pF

V_SW=400 mV_PP, f=1 MHz,

#1S=#2S=V_CC

C_OFF

1.8

25

5

C_CTRLSelect Pin Capacitance #nS=400 mV_PP, f=1 MHz,

FSA553 • Rev. 1.4

www.fairchildsemi.com

5

Timing Diagrams

90%

V_CC

10%

t_OFF

t_ON

+1.5V

nA (nB)

80%

nB (nA)= +1.5V

#nS=Float

20%

80%

0V

nB (nA) = -1.5V

#nS=Float

20%

nA (nB)

Figure 4. t_ON/t_OFFV_CCto Output Timing

90%

#nS

10%

t_OFF

t_ON

+1.5V

nA (nB)

80%

nB (nA)= +1.5V

V_CC= 0V

20%

80%

0V

nB (nA) = -1.5V

V_CC=0V

20%

nA (nB)

Figure 5. t_ON/t_OFFSelect (#nS) to Output Timing

Network Analyzer

R_S

nA

V_CC=1.8V

#nS=Float

GND

V_S

GND

OUT

R

T

GND

nB

V

GND

R

T

R_Sand R_Tare function of application

environment (see AC/DC Tables)

GND

OFF Isolation = 20 Log (V_OUT/V_IN)

Figure 6. OFF Isolation

Product-Specific Dimensions

E

D

X

Y

0.2075 mm

0.2925 mm

1.215 .03 mm

1.385 .03 mm

FSA553 • Rev. 1.4

www.fairchildsemi.com

6

0.03 C

E

A

2X

B

D

0.40

A1

ꢄꢀꢁꢂꢇꢋꢅ

Cu Pad (Bottom)

BALL A1

INDEX AREA

0.40

ꢄꢀꢁꢉꢇꢋꢅ

Solder Mask

0.03 C

2X

RECOMMENDED LAND PATTERN

(NSMD PAD TYPE)

TOP VIEW

0.06 C

ꢀꢁꢉꢊꢈꢀꢁꢀꢇꢈ

ꢀꢁꢂꢀꢉꢀꢁꢀꢂꢀ

ꢀꢁꢋꢈꢇꢀꢁꢀꢉꢈ

0.05 C

C

SEATING

PLANE

D

SIDE VIEWS

NOTES

A. NO JEDEC REGISTRATION APPLIES.

B. DIMENSIONS ARE IN MILLIMETERS.

C. DIMENSIONS AND TOLERANCE PER

ASME Y14.5M, 2009.

0.005

C A B

ꢀꢁꢂꢃꢀꢀꢁꢀꢂ

9X

0.40

D. DATUM C IS DEFINED BY THE

SPHERICAL CROWNS OF THE BALLS.

E. FOR DIMENSIONS D,E,X, AND Y SEE

PRODUCT DATASHEET.

C

B

A

ꢄ<ꢅꢆꢀꢁꢀꢇꢈ

0.40

F. DRAWING FILNAME: MKT-UC009Ak rev3

2 3

1

E

ꢄ;ꢅꢆꢀꢁꢀꢇꢈ

BOTTOM VIEW

ON Semiconductor and

are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent

coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,

regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer

application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not

designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification

in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized

application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and

expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such

claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This

literature is subject to all applicable copyright laws and is not for resale in any manner.

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1


型号：	FSA553UCX
厂家：	ONSEMI
描述：	Dual SPST Depletion Audio Switch
文件：	总9页 (文件大小：364K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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