PI3USB3102

PI3USB3102
USB3.0 and USB2.0 Combo Switch
Features
Description
ÎÎ1:2 mux/demux for USB 3.0SS, 2.0HS, and 2.0FS signals
Pericom Semiconductor’s PI3USB3102 USB3.0 and USB2.0 Combo Switch is a complete 1:2 switching solution for SuperSpeed
USB 3.0 signals. PI3USB3102 provides differential high-speed
lanes for the USB3.0 4.8 Gbps TX and RX lanes as well as a differential lane for 480 Mbps USB 2.0 signals and the USB_ID signal.
ÎÎSwitches Tx, Rx, Dx, and USB_ID from USB3.0 connector
ÎÎInsertion Loss for superspeed channels @ 2.5 GHz: -1.7dB
ÎÎ-3dB Bandwidth for superspeed channels:
4.7GHz
ÎÎReturn loss for superspeed channels @ 2.5GHz:
-16dB
ÎÎLow Bit-to-Bit Skew, 7ps max (between '+' and '-' bits)
PI3USB3102 can be used to connect two hosts to a single device
or a single host to two devices.
ÎÎLow Crosstalk for superspeed channels: [email protected] Gbps
ÎÎLow Off Isolation for superspeed channels:
[email protected] Gbps
ÎÎVDD Operating Range: 3.3V +/-10%
PI3USB3102 offers excellent signal integrity for high-speed signals and low power dissipation. Insertion loss is 1.7 dB and return
loss is -16 dB at 2.5 GHz. Power dissipation is 6.6 mW maximum.
ÎÎESD Tolerance: 2kV HBM
ÎÎLow channel-to-channel skew, 35ps max
ÎÎPackaging (Pb-free & Green):
Application
àà 32 TQFN (ZL)
Routing of USB3.0 signals with low signal attenuation between
source and sink.
Block Diagram
Tx+
Tx Rx+
Rx -
Tx+A
Tx -A
Rx+A
Rx -A
Tx+B
Tx-B
Rx+B
Rx-B
D+
DUSB_ID
D+A
D-A
USB_ID A
D+B
D- B
USB_ID B
OE
SS SEL
Logic
Control
HS SEL
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PI3USB3102
USB3.0 and 2.0 Combo switch
Pin Assignment (TQFN-32)
Tx+
Tx-
HS_SEL
Tx+A
Tx-A
VDD
GND
32
31
30
29
28
OE
1
27
2
26
3
25
4
24
5
23
GND
8
20
9
19
10
18
11
17
Function
Low
Low
Low
Port A active for all channels
Low
Low
High
Port A for SS, port B for HS and ID
Low
High
Low
Port B for SS, port A for HS and ID
Low
High
High
Port B active for all channels
High
x
x
I/O's are hi-z and IC is power down
USB_IDB
D-B
D+B
VDD
VDD
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Rx+A
Rx-A
Tx+B
Tx-B
Rx+B
Rx-B
GND
VDD
D+A
D-A
USB_IDA
SS_SEL HS_SEL
16
21
15
7
14
22
13
6
12
VDD
Rx+
RxD+
DUSB_ID
VDD
SS_SEL
OE
Truth Table
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PI3USB3102
USB3.0 and 2.0 Combo switch
Pin Description
pin#
pin Name
Signal Type
Description
1
Tx+
I/O
positive differential USB3.0 Tx signal for COM port
2
Tx-
I/O
negative differential USB3.0 Tx signal for COM port
3
VDD
Power
3.3V +/-10% power supply
4
Rx+
I/O
positive differential USB3.0 Rx signal for COM port
5
Rx-
I/O
negative differential USB3.0 Rx signal for COM port
6
D+
I/O
positive differential USB2.0 signal for COM port
7
D-
I/O
negative differential USB2.0 signal for COM port
8
USB_ID
I/O
USB_ID for COM port
9
VDD
Power
3.3V +/-10% power supply
10
SS_SEL
I
11
OE
I
Output enable. if OE is low, IC is enabled. If OE is high, then IC is power
down and all I/Os are hi-z
12
VDD
Power
3.3V +/-10% power supply
13
USB_IDB
I/O
USB_ID for port B
14
D-B
I/O
negative differential USB2.0 signal for port B
15
D+B
I/O
positive differential USB2.0 signal for port B
16
VDD
Power
3.3V +/-10% power supply
17
USB_IDA
I/O
USB_ID for port A
18
D-A
I/O
negative differential USB2.0 signal for port A
19
D+A
I/O
positive differential USB2.0 signal for port A
20
VDD
Power
3.3V +/-10% power supply
21
GND
Ground
Ground
22
Rx-B
I/O
negative differential USB3.0 Rx signal for port B
23
Rx+B
I/O
positive differential USB3.0 Rx signal for port B
24
Tx-B
I/O
negative differential USB3.0 Tx signal for port B
25
Tx+B
I/O
positive differential USB3.0 Tx signal for port B
26
Rx-A
I/O
negative differential USB3.0 Rx signal for port A
27
Rx+A
I/O
positive differential USB3.0 Rx signal for port A
28
GND
Ground
Ground
29
VDD
Power
3.3V +/-10% power supply
30
Tx-A
I/O
negative differential USB3.0 Tx signal for port A
31
Tx+A
I/O
positive differential USB3.0 Tx signal for port A
switch logic control for SuperSpeed Path
If HIGH, then path B is selected for SuperSpeed channels only
If LOW, then path A is selected for SuperSpeed channels only
switch logic control for USB2.0 (D+/-) and USB_ID path
32
HS_SEL
I
If High, path B is selected
If LOW, path A is selected
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PI3USB3102
USB3.0 and 2.0 Combo switch
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ........................................................... –65°C to +150°C
Supply Voltage to Ground Potential ....................................–0.5V to +4.2V
DC Input Voltage ...................................................................... –0.5V to VDD
DC Output Current ..............................................................................120mA
Power Dissipation .................................................................................... 0.5W
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
reliability.
DC Electrical Characteristics for Switching over Operating Range
(TA = –40°C to +85°C, VDD = 3.3V ±10%)
Parameter
Description
Test Conditions(1)
VIH
Input HIGH Voltage
Guaranteed HIGH level
VIL
Input LOW Voltage
Guaranteed LOW level
VIK
Clamp Diode Voltage, Dx
VDD = Max., IIN = –18mA
IIH
Input HIGH Current
VDD = Max., VIN = VDD
±5
IIL
Input LOW Current
VDD = Max., VIN = GND
±5
IOFF_HS/ID
I/O leakage when part is off for D+,
D- and USB_ID signals only
VDD = 0V, VINPUT = 0V to 3.6V
20
RON_SS
On resistance between input to output for SuperSpeed signals
VDD = 3.3V, Vinput = 0V to 1V,
IINPUT = 20mA
10
13
Ohm
RON_FS
On resistance between input to output for USB2.0 FS signals (D+/D-)
VDD = 3.3V, Vinput = 0 to 3.3V,
IINPUT = 20mA
7
9
Ohm
RON_HS
On resistance between input to output for USB2.0 HS signals (D+/D-)
VDD = 3.3V, Vinput = -0.4V to
+0.4V, IINPUT = 20mA
4
6
Ohm
USB_ID_I
Input voltage tolerance on USB_ID
path
5.5
V
USB_ID_O
Output voltage on USB_ID path
3.6
V
Min
Typ(1)
Max
Units
1.5
0.75
–0.8
USB_ID input from 0V to 5.25V
V
–1.1
µA
Power Supply Characteristics (TA = –40°C to +85°C)
Parameter
Description
Test Conditions(1)
ICC
Quiescent Power Supply Current
VDD = Max., VIN = GND or VDD
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Min
Typ(1)
Max
2
Units
mA
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PI3USB3102
USB3.0 and 2.0 Combo switch
Dynamic Electrical Characteristics over Operating Range (TA = -40º to +85ºC, VDD = 3.3V ±10%)
Parameter
Description
Test Conditions
Typ.
Max
Units
XTALK
Crosstalk on SuperSpeed Channels
See Fig. 1 for Measurement
f= 2.5 GHz
Setup
-25dB
OIRR
OFF Isolation on SuperSpeed Channels
See Fig. 2 for Measurement
f= 2.5 GHz
Setup,
-22dB
ILOSS
Differential Insertion Loss on SuperSpeed
@5.0Gbps (see figure 3)
Channels
-1.7
dB
R loss
Differential Return Loss on SuperSpeed
channels
@ 2.5GHz
-16
dB
BW_SS
Bandwidth -3dB for SuperSpeed path
(Tx±/ Rx±)
See figure 3
4.7
GHz
BW_HS
-3dB BW for USB high speed path (D+/-)
See figure 3
1.5
GHz
Tsw a-b
time it takes to switch from port A to port
B
1
us
Tsw b-a
time it takes to switch from port B to port
A
1
us
Tstartup
Vdd valid to channel enable
10
us
Twakeup
Enabling output by changing OE from
low to High
10
us
dB
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V DD = 3.3V, TA = 25°C ambient and maximum loading.
Switching Characteristics (TA= -40º to +85ºC, VDD = 3.3V±10%)
Parameter
Description
Tpd
Propagation delay (input pin to output pin)
80
ps
tb-b
Bit-to-bit skew within the same differential pair
5
ps
tch-ch
Channel-to-channel skew
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Min.
Typ.
Max.
35
5
Units
ps
11/09/12
PI3USB3102
USB3.0 and 2.0 Combo switch
BALANCED
PORT1
BALANCED
PORT2
+
+
50
–
–
50
+
+
50
–
–
50
DUT
Fig 1. Crosstalk Setup
BALANCED
PORT1
+
+
50
–
–
50
+
BALANCED
PORT2
–
DUT
Fig 2. Off-isolation setup
BALANCED
PORT1
+
+
–
–
BALANCED
PORT2
DUT
Fig 3. Differential Insertion Loss set up
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PI3USB3102
USB3.0 and 2.0 Combo switch
-20.0
-30.0
-40.0
-50.0
Crosstalk (dB)
-60.0
-70.0
-80.0
-90.0
-100.0
1.00E+07
1.00E+09
1.00E+08
1.00E+10
Frequency (Hz)
Fig 4. Xtalk for SuperSpeed channels (Tx/Rx)
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PI3USB3102
USB3.0 and 2.0 Combo switch
-0.0
-10.0
-20.0
Off Isolation (dB)
-30.0
-40.0
-50.0
-60.0
-70.0
-80.0
1.00E+07
1.00E+09
1.00E+08
1.00E+10
Frequency (Hz)
Fig 5. Off Isolation for SuperSpeed channels (Tx/Rx). Red is for path B and Blue is for path A
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PI3USB3102
USB3.0 and 2.0 Combo switch
-0.0
-1.0
Insertion Loss (dB)
-2.0
-3.0
-4.0
-5.0
-6.0
1.00E+07
1.00E+09
1.00E+08
1.00E+10
Frequency (Hz)
Fig 6. Insertion Loss for SuperSpeed channels (Tx/Rx). Red is for path B and Blue is for path A
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PI3USB3102
USB3.0 and 2.0 Combo switch
Test Circuit for Electrical Characteristics(1-5)
2 * Vdd
VDD
200-ohm
Pulse
Generator
VIN
VOUT
D.U.T
4pF
CL
RT
200-ohm
Notes:
1. CL = Load capacitance: includes jig and probe capacitance.
2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator
3. Output 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
4. Output 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
5. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, t R ≤ 2.5ns, t F ≤ 2.5ns.
6. The outputs are measured one at a time with one transition per measurement.
Switching Waveforms
SEL
VDD
50%
50%
0V
Output 1
tPZL
tPLZ
VOH
10%
tPHZ
tPZH
90%
VOL
VOH
VOL
Output 2
Voltage Waveforms Enable and Disable Times
Switch Positions
Test
Switch
tPLZ , tPZL (output on B-side)
2 * Vdd
tPHZ , tPZH (output on B-side)
GND
Prop Delay
Open
Test Circuit for Dynamic Electrical Characteristics
Agilent PNA-L Network Analyzer
Balanced port 1
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Balanced port 2
DUT
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PI3USB3102
USB3.0 and 2.0 Combo switch
Packaging Mechanical: 32-Contact TQFN (ZL)
1
DATE: 10/09/09
DESCRIPTION: 32-contact, Thin Fine Pitch Quad Flat No-Lead (TQFN)
PACKAGE CODE: ZL (ZL32)
DOCUMENT CONTROL #: PD-2044
REVISION: A
09-0125
Note:
For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php
Ordering Information
Ordering Code
Package Code
Package Description
PI3USB3102ZLE
ZL
Pb-free & Green, 32-contact TQFN, Copper Wire
PI3USB3102ZLE+DA
ZL
Pb-free & Green, 32-contact TQFN, Gold Wire
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• "E" denotes Pb-free and Green
• Adding an "X" at the end of the ordering code denotes tape and reel packaging
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