PERICOM PI2PCIE2412ZHE

PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch,
w/ Single Enable
Features
Description
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Pericom Semiconductor’s PI2PCIE2412 is an 8 to 4 differential
channel multiplexer/demultiplexer switch. This solution can
switch 2 full PCI Express, Gen-II, lanes to one of two locations.
Using a unique design technique, Pericom has been able to
minimize the impedance of the switch such that the attenuation
observed through the switch is negligible. The unique design
technique also offers a layout targeted for PCI Express signals,
which minimizes the channel to channel skew as well as channel
to channel crosstalk as required by the PCI Express specification.
4 Differential Channel, 2:1 Mux/DeMux
PCI Express, Gen II Performance, 5.0Gbps
Low Bit-to-Bit Skew , 7ps max (between '+' and '-' bits)
Low Crosstalk: [email protected] GHz
Low Off Isolation: [email protected] GHz
VCC Operating Range: +1.5V to +2.0V
ESD Tolerance: 8kV HBM I/O; 2kV HBM select pin
Low channel-to-channel skew, 35ps max
Packaging (Pb-free & Green):
– 42-contact, TQFN (ZH42)
Application
Routing of PCI-Express, Gen-II, signals with low signal attenuation.
Pin Description
A0
A1
A2
A3
B0
B1
B2
B3
C0
C1
C2
C3
A4
A5
A6
B4
B5
B6
B7
A7
VDD
GND
VDD
GND
Block Diagram
GND
A0
A1
GND
VDD
A2
A3
VDD
SEL
GND
A4
A5
VDD
GND
A6
A7
GND
C4
C5
C6
C7
SEL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
42 41 40 39
GND
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
B0
B1
B2
B3
C0
C1
C2
C3
VDD
B4
B5
B6
B7
C4
C5
C6
C7
18 19 20 21
Function
SEL
AN to BN
L
AN to CN
H
VDD
GND
VDD
GND
Truth Table
1
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux 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 +2.5V
DC Input Voltage ...............................................................–0.5V to VCC
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, VCC = 1.5V to 2.0V)
Paramenter
Description
Test Conditions(1)
Min
Typ(2)
Max
Units
0.35 x VCC
V
VIH
Input HIGH Voltage
Guaranteed HIGH level
0.65 x VCC
VIL
Input LOW Voltage
Guaranteed LOW level
–0.5
VIK
Clamp Diode Voltage
VCC = Max., IIN = –18mA
IIH
Input HIGH Current
VCC = Max., VIN = VCC
±5
IIL
Input LOW Current
VCC = Max., VIN = GND
±5
–0.7
–1.2
μA
Power Supply Characteristics
Parameters
ICC
Test Conditions(1)
Description
Quiescent Power Supply Current
Min.
Typ.(2)
VCC = Max., VIN = GND or VCC
Max.
200
Units
μA
Dynamic Electrical Characteristics Over the Operating Range (TA= -40º to +85ºC, VCC = 1.8V±10%, GND=0V)
Parameter
Description
Test Conditions
Min.
Typ.(2)
Crosstalk
See Fig. 1 for Measurement Setup, f= 3 GHz
f = 100 MHz
-23dB
-58dB
OIRR
OFF Isolation
See Fig. 2 for Measurement Setup, f= 3 GHz
f = 100 MHz
-23dB
-58dB
ILOSS
Differential
Insertion Loss
f= 3 GHz
BW
Bandwidth -3dB
XTALK
Max.
Units
dB
-2
dB
4.1
GHz
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 1.8V, TA = 25°C ambient and maximum loading.
2
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
HP4396B
R
S
T
HP11667A
PI2PCIE2412
50-ohm
100
-ohm
50-ohm
50-ohm
100
-ohm
Fig 1. Crosstalk Setup
HP4396B
R
S
T
HP11667A
50-ohm
PI2PCIE2412
50-ohm
50-ohm
100
-ohm
Fig 2. Off-isolation setup
3
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
Fig 3. Crosstalk
Fig 4. Off Isolation
4
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
Fig 5. Insertion Loss
5
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
Switching Characteristics (TA= -40º to +85ºC, VCC = 1.8V±10%)
Paramenter
Description
Min.
Max.
Units
tPZH, tPZL
tPHZ, tPLZ
tb-b
Line Enable Time - SEL to AN, BN
0.5
8.0
Line Disable Time - SEL to AN, BN
0.5
8.0
Bit-to-bit skew within the same differential pair
7
ps
tch-ch
Channel-to-channel skew
35
ps
ns
Test Circuit for Electrical Characteristics(1-5)
2 x VCC
VCC
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.
output 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
4. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns.
5. The outputs are measured one at a time with one transition per measurement.
Switching Waveforms
VCC
SEL
VCC/2
VCC/2
0V
Output 1
tPZL
tPLZ
VCC/2
VOH
VOL + 0.15V
tPHZ
tPZH
VOH – 0.15V
VCC/2
VOL
VOH
VOL
Output 2
Voltage Waveforms Enable and Disable Times
Switch Positions
Test
Switch
tPLZ, tPZL (output on B-side)
2 x VCC
tPHZ, tPZH (output on B-side)
GND
Prop Delay
Open
6
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
Test Circuit for Dynamic Electrical Characteristics
S1
HP4396B or Equivalent
R1
T1
PI2PCIE2412
HP11667A
Applications Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
PCI Express Application Specific Measurements and Test Set-up
Figure 5: Test Setup
7
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
Figure 6: 5 Gbps RX signal eye of the PCI-SIG compliance software test using PI2PCIE2412 + 16" test card
Figure 7. 5 Gbps RX signal eye of the PCI-SIG compliance software test with no switch + w/ 16" test card
8
PS8866B
10/19/06
PI2PCIE2412
1.8V, PCI Express Gen-II Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
Packaging Mechanical: 42-Contact TQFN (ZH)
Ordering Information
Ordering Code
PI2PCIE2412ZHE
Package Code
Package Description
ZH
Pb-free & Green, 42-contact TQFN
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
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
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PS8866B
10/19/06