Fairchild FSAV433 service manual

August 2006

FSAV433

High-Bandwidth (550MHz) Three-Channel 3:1 Video Switch

FSAV433 High-Bandwicth (550MHz) Three-Channel 3:1 Video Switch

Features

■ Ground between channels to optimize isolation and

reduce hostile crosstalk

■ -70dB non-adjacent channel crosstalk at 30MHz

■ 6.5Ω typical On Resistance (R

■ -3dB bandwidth: 550MHz

■ Low power consumption (1µA max)

ON

)

Applications

■ RGB Video Switch in LCD, Plasma, and Projection

displays

■ DVD-RW, notebook

Ordering Information

Order Number

FSAV433BQX

FSAV433MTC MTC20 Yes

FSAV433MTCX MTC20 Yes

Package

Number

MLP020B Yes

Pb-

Free

(1)

20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm Tape & Reel

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Tube

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Tape & Reel

Description

The FSAV433 is an ultra-low power, high-bandwidth video switch specially designed for switching three analog video signals, including computer RGB and high-definition YPbPr signals. The wide bandwidth (550MHz) of the switch allows signal passage with minimum edge and phase distortion, while −70dB non-adjacent channel crosstalk generates negligible image noise between active channels. Optimized differential gain and phases maintain the image integrity of video applications, while low On Resistance offers low signal insertion loss.

The Fairchild switch family derives from and embodies Fairchild’s proven switch technology used for years in its 74LVX3L384 (FST3384) bus switch product.

Package Description

Packing

Method

Notes:

1. Pb-Free package per JEDEC J-STD-020B.

Application Diagram

FSAV433 Rev. 1.4.1

Analog Symbol Pin Descriptions

Pin Name Description

S1, S

2

ABus A

B1–B

3

Truth Table

FSAV433 High-Bandwicth (550MHz) Three-Channel 3:1 Video Switch

Select Input

Bus B

Connection Diagrams

1B

GND

2B

1

2

3

4

5

1

20

19

18

17

16

V

cc

S

1

S

2

1A

GND

S

1

S

2

Function

Low Low Disconnect

Low High A = B

High Low A = B

High High A = B

1

2

3

2B

GND

3B

6

2

7

3

8

9

1

10

2

Figure 1. Pin Assignments for TSSOP

(Top Through View)

FSAV433 Rev. 1.4.1 2

15

14

13

12

11

2A

GND

3A

GND

3B

3

Figure 2. Pad Assignments for DQFN

(Top Through View)

Absolute Maximum Ratings

The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table defines the conditions for actual device operation

FSAV433 High-Bandwicth (550MHz) Three-Channel 3:1 Video Switch

Symbol

V

CC

V

S

V

IN

l

IK

I

OUT

I

CC/IGND

T

STG

Parameter

Supply Voltage -0.5 +4.6 V

DC Switch Voltage -0.5V to VCC +0.05

DC Input Voltage

DC Input Diode Current VIN < 0V -50 mA

DC Output Sink Current 100 mA

DC VCC/GND Current ±100 mA

Storage Temperature Range -65 +150 °C

(2)

Min. Max. Units

-0.5 to +4.6 V

ESD Human Body Model 7 kV

Notes:

2. The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed.

Recommended Operating Conditions

Symbol

V

CC

V

IN

T

A

Parameter

Power Supply Operating 2.3 3.6 V

Input Voltage 0V V

Free Air Operating Temperature −40 +85 °C

(3)

Min. Max. Units

CC

Notes:

3. Unused control inputs must be held HIGH or LOW. They may not float.

FSAV433 Rev. 1.4.1 3

DC Electrical Characteristics

Typical values are at TA = +25°C unless otherwise specified.

Symbol Parameter Conditions

Analog Signal Range 0 2.0 V

V

I

OFF

R

I

CC

I

CCT

I

ON

Clamp Diode Voltage IIN = −18 mA 3.0 -1.2 V

IK

HIGH Level Input Voltage 2.3 1.8

IH

LOW Level Input Voltage 2.3 0.7

IL

Input Leakage Current 0 ≤ VIN ≤ 3.6V 3.6 ±1.0 µA

I

OFF-STATE Leakage Current 0 ≤ A, B ≤ VCC, See Figure 7 3.6 ±1.0 µA

Switch On Resistance

(4)

VIN = 1.0V 2.3 9.0 13.0 Ω

= 13 mA, See Figure 6 3.0 6.5 9.0 Ω

I

ON

= 2.0V 2.3 10.0 15.0 Ω

V

IN

= 26 mA, See Figure 6 3.0 6.5 9.0 Ω

I

ON

Quiescent Supply Current VIN = VCC or GND, I

Increase in I Input

per Control

CC

One Control Input at 3.0V 3.6 10.0 µA

Other Inputs at V

T

= −40 °C to +85

V

(V)

= 0 3.6 1.0 µA

OUT

or GND

CC

A

CC

Min. Typ. Max.

°C

FSAV433 High-Bandwicth (550MHz) Three-Channel 3:1 Video Switch

Units

V3.0 - 3.6 2.0

V3.0 - 3.6 0.8

Notes:

4. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B) pins.

FSAV433 Rev. 1.4.1 4