Fairchild FSUSB30 service manual

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January 2007

FSUSB30 Low-Power 2-Port Hi-Speed USB 2.0 (480Mbps) Switch

Features

■ Low On Capacitance, 3.7pF (typical)

■ Low On Resistance, 6.5Ohm (typical)

■ Low power consumption (1µA maximum)

– 10µA maximum I

voltage range (V

■ Wide -3dB bandwidth, >720MHz

■ 8KV ESD protection

■ Power-Off protection when V

over an expanded control

CCT

= 2.6V, VCC = 4.3V)

IN

= 0V; D+/D- pins can

CC

tolerate up to 5.25V

■ Packaged in:

– Pb-Free 10-lead MicroPak™ (1.6 x 2.1mm) – Pb-Free 14-lead DQFN – Pb-Free 10-lead MSOP – Pb-Free 10-lead UMLP (1.4 x 1.8mm)

Applications

■ Cell phone, PDA, Digital Camera, and Notebook LCD

Monitor, TV, and Set-top Box

Related Application Notes

■ AN-6022 Using the FSUSB30 / FSUSB31 to Comply

with USB 2.0 Fault Condition Requirements

Ordering Information

General Description

The FSUSB30 is a low-power, two-port, high-speed USB

2.0 switch. Configured as a double-pole double-throw (DPDT) swit ch, it is optimized for switching between two high-speed (480Mbps) sources or a Hi-Speed a nd FullSpeed (12Mbps) source. The FSUSB30 is compatible with the requirements of USB2.0 and features an extremely low on capacitance (C bandwidth of this device (720MHz), exceeds the bandwidth needed to pass the third harmonic, resulting in signals with minimum edge and phase di stortion. Superior channel-to-channel crosstalk minimizes interference.

The FSUSB30 contains special circuitry on the D+/ Dpins which allows the device to withstand an overvoltage condition when powered off. This device is also designed to minimize current consumption even when the control voltage applied to the S pin, is lower than the supply voltage (V

). This feature is especially valuable to ultra-

CC

portable applications such as cell phones, allowing for direct interface with the general purpose I/Os of the baseband processor. Other applications include switching and connector sharing in portable cell phones, PDAs, digital cameras, printers, and notebook computers.

) of 3.7pF. The wide

ON

Order

Number

Package

Number

Product Code

Top Mark Pb-Free Package Description

FSUSB30L10X MAC010A FJ Yes 10-Lead MicroPak, 1.6 x 2.1mm FSUSB30BQX MLP014A USB30 Yes

FSUSB30MUX MUA10A FSUSB30 Yes

14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm

10-Lead Molded Small Outline Package (MSOP), JEDEC MO-187, 3.0mm Wide

FSUSB30UMX MLP010A GJ Yes 10-Lead, Quad, Ultrathin, MLP (UMLP) 1.4 x 1.8mm

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

Application Diagram

FSUSB30

V

CC

1D+

OE

D+

D–

USB

Connector

USB2.0

Set Top Box

(STB) CPU

or

DSP

Processor

MicroPak™ is a trademark of Fairchild Semiconductor Corporation.

Controller

DVR or

Mass Storage

Controller

1D–

2D+

2D–

Control

S

Connection Diagrams Analog Symbol

FSUSB30 Low-Power 2-Port Hi-Speed USB 2.0 (480Mbps) Switch

Pad Assignments for MicroPak

OE

HSD1–

HSD2–

D–

9

876

V

CC

2

134

S

HSD1+

510

HSD2+

GND

D+

(Top View)

Pad Assignments for DQFN

V

NC

CC

14

1

HSD1+

NC

HSD2+

D+

2

S

3

4

5

6

13

OE

12

HSD1–

11

NC

10

HSD2–

9

D–

87

NCGND

(Top Through View)

Pin Assignment for MSOP

HSD1+

D+

HSD2+

HSD1–

D–

HSD2–

S

OE

Control

Pin Descriptions

Pin Name Description

OE

S Select Input

D+, D−, HSDn+, HSDn− Data Ports

NC No Connect

Bus Switch Enable

Truth Table

S

OE

X HIGH Disconnect

LOW LOW D+, D− = HSD1

HIGH LOW D+, D− = HSD2

Function

n n

10

V

CC

9

OE

8

HSD1–

7

HSD2–

6

D–

HSD1+

HSD2+

D+

GND

1

S

2

3

4

5

(Top Through View)

Pad Assignments for µMLP

HSD2–

HSD1–

7

6

1

HSD1+

2

HSD2+

5

D–

4

GND

3

D+

8

OE

9

V

CC

10

Sel

(Top Through View)

FSUSB30 Rev. 1.1.5 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 Minimum Maximum Unit

V

CC

V

CNTRL

V

SW

I

IK

I

OUT

T

STG

ESD Human Body Model

Note:

1. The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. DC switch voltage may never exceed 4.6V.

Supply Voltage -0.5 +4.6 V DC Input Voltage

(1)

-0.5 +4.6 V

HSDnX 0.5 VCC + 0.3 V

DC Switch Voltage

(1)

D+,D- when V D+,D- when V

> 0 0.5 VCC + 0.3 V

CC

= 0 -0.50 5.25 V

CC

DC Input Diode Current -50 mA DC Output Current 50 mA Storage Temperature -65 +150 °C

All Pins 8 kV I/O to GND 8 kV

FSUSB30 Low-Power 2-Port Hi-Speed USB 2.0 (480Mbps) Switch

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 them or designing to absolute maximum ratings.

Symbol Parameter Minimum Maximum Unit

V

CC

V

IN

V

SW

T

A

ΘJ

Note:

2. Control input must be held HIGH or LOW and it must not float.

Supply Voltage 3.0 4.3 V Control Input Voltage 0 V Switch Input Voltage 0 V Operating Temperature -40 +85 °C Thermal Resistance, 10 MicroPak 250 °C/W

A

(2)

CC CC

V V

FSUSB30 Rev. 1.1.5 3

DC Electrical Characteristics

All typical values are at 25°C unless otherwise specified.

Symbol Parameter Conditions

V

IK

V

IH

V

IL

I

IN

I

OZ

I

OFF

R

ON

ΔR

ON

RON Flatness RON Flatness

I

CC

I

CCT

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

Input Voltage HIGH

Input Voltage LOW

Control Input Leakage VSW = 0.0V to V OFF State Leakage 0 ≤ Dn, HSD1n, HSD2n ≤ V Power OFF Leakage

Current (D+, D–)

Switch On Resistance

ON

(4)

(3)

Delta R

V

= 0V to 4.3V, VCC = 0V 0 -2.0 2.0 µA

SW

VSW = 0.4V, ION = -8mA 3.0 6.5 10.0

(3)

V

= 0V, IO = 30mA at 25°C 3.6 7.0

SW

VSW = 0.4V, ION = -8mA 3.0 0.35 Ω VSW = 0.0V - 1.0V,

ION = -8mA

= 0.0V or VCC,

V

Quiescent Supply Current Increase in ICC Current

per Control Voltage

CNTRL

= 0

I

OUT

(control input) = 2.6V 4.3 10.0 µA

V

CNTRL

CC

T

= −40°C to +85°C

A

(V)

V

CC

Min. Typ. Max.

3.0 to 3.6 1.3 V

4.3 1.7 V

3.0 to 3.6 0.5 V

4.3 0.7 V

4.3 -1.0 1.0 µA

CC

4.3 -2.0 2.0 µA

3.0 2.0 Ω

4.3 1.0 µA

FSUSB30 Low-Power 2-Port Hi-Speed USB 2.0 (480Mbps) Switch

Unit

Ω

Notes:

3. Measured by the voltage drop between Dn, HSD1

, HSD2n pins at the indicated current through the switch.

n

On resistance is determined by the lower of the voltage on the two ports.

4.Guaranteed by characterization.

AC Electrical Characteristics

All typical values are for VCC = 3.3V at 25°C unless otherwise specified.

(V)

Symbol Parameter Conditions

t

OFF

t

BBM

O

Xtalk

Turn-On Tim e S,

ON

OE

to Output

Turn-Off Time S, OE

to Output

Propagation Delay

PD

Break-Before-Make Off Isolation

IRR

(Non-Adjacent) Non-Adjacent Channel

Crosstalk

BW −3dB Bandwidth

(4)

, HD2n = 0.8V,

HD1

n

R

= 50Ω, CL = 5pF

L

, HD2n = 0.8V,

HD1

n

R

= 50Ω, CL = 5pF

L

RL = 50Ω, CL = 5pF 3.3 0.25 ns

= 50Ω, CL = 5pF,

R

L

V

= 0.8V

IN

f = 240MHz, R

R

= 50Ω, f = 240MHz 3.0 to 3.6 -45.0 dB Figure 13

T

R

= 50Ω, CL = 0pF

T

= 50Ω, CL = 5pF 550

R

T

= 50Ω 3.0 to 3.6 -30.0 dB Figure 12

T

V

CC

3.0 to 3.6 13.0 30.0 ns Figure 8

3.0 to 3.6 12.0 25.0 ns Figure 8

3.0 to 3.6 2.0 6.5 ns Figure 9

3.0 to 3.6

T

= −40°C to +85°C

A

Min. Typ. Max.

720

Unit

Figure

Number

Figure 6 Figure 7

MHz Figure 11

FSUSB30 Rev. 1.1.5 4

USB Hi-Speed Related AC Electrical Characteristics

(V)

Symbol Parameter Conditions

t

SK(O)

Channel-to-Channel

(5)

Skew

RL = 50Ω, CL = 5pF 3.0 to 3.6 50 ps

V

CC

Skew of Opposite

t

SK(P)

Transitions of the Same Output

Total Jitter

t

J

(5)

RL = 50Ω, CL = 5pF 3.0 to 3.6 20 ps

RL = 50Ω, CL = 5pF, t

= tF = 500ps at 480 Mbps

R

(PRBS = 2

15

− 1)

3.0 to 3.6 200 ps

Note:

5. Guaranteed by characterization.

Capacitance

Symbol Parameter Conditions

C

OFF

Control Pin Input Capacitance VCC = 0V 1.5 pF Figure 15

IN

D1n, D2n, Dn On Capacitance VCC = 3.3, OE = 0V 3.7 pF Figure 14

ON

D1n, D2n Off Capacitance VCC and OE = 3.3 2.5 pF Figure 15

T

Min. Typ. Max.

T

= −40°C to +85°C

A

Min. Typ. Max.

= −40°C to +85°C

A

Units

FSUSB30 Low-Power 2-Port Hi-Speed USB 2.0 (480Mbps) Switch

Figure

Number

Figure 6

Figure 10

Figure 6

Figure 10

Figure

Number

FSUSB30 Rev. 1.1.5 5

Typical Characteristics

FSUSB30 Low-Power 2-Port Hi-Speed USB 2.0 (480Mbps) Switch

0

-1

-2

-3

-4

-5

Gain (dB)

-6

-7

-8 1 10 100 1000 10000

Frequency Response

Frequency (MHz)

CL = 0pF, VCC = 3.3V

Figure 1. Gain vs. Frequency

Frequency Response

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

Off Isolation (dB)

-100

-110

-120 1 10 100 1000

Frequency (MHz)

Figure 2. Off Isolation

0

-10

-20

-30

-40

-50

-60

-70

-80

Crosstalk (dB)

-90

-100

-110

-120 1 10 100 1000

Frequency (MHz)

VCC = 3.3V

Figure 3. Crosstalk

Frequency Response

FSUSB30 Rev. 1.1.5 6