PO3B3125A
High-Bandwidth, 4-Bit, 2-Port Bus Switch
w/ Individual Enables
High Bandwidth Potato Chip
02/04/08
FEATURES:
• Patented technology
• High signal -3db passing bandwidth at 1.4GHz
• Near-Zero propagation delay
• VCC = 1.65V to 3.6V
• Ultra-Low Quiescent Power: 0.1µA typical
• Ideally suited for low power applications
• Industrial operating temperature: -40°C to +85°C
• Available in 14 pin TSSOP package
DESCRIPTION:
Potato Semiconductor’s PO3B3125A is
designed for world top performance using
submicron CMOS technology to achieve GHz
high bandwidth.
The PO3B3125A is a High-Bandwidth, 4-Bit,
2-Port Bus Switch w/ Individual Enables Bus Switch.
The switch introduces no additional ground bounce
noise or propagation delay
.
Pin Configuration
BE0
A0
B0
BE1
A1
B1
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Block Diagram
A0
SW
B0
V
CC
BE3
A3
B3
BE2
A2
B2
BE0
A1
BE1
A2
BE2
A3
BE3
BE
SW
B1
SW
B2
SW
SW
B3
A
B
Pin Description
Pin Name
BE
N
A
3
-A
0
B
3
-B
0
V
CC
GND
Description
Switch Enable
Bus A
Bus B
Power
Ground
Truth Table
BE
N
X
H
L
A
N
B
N
V
CC
Function
Disconnect
Disconnect
Connect
Hi-Z Hi-Z GND
Hi-Z Hi-Z
Bn
An
V
CC
V
CC
1
Copyright
© Potato Semiconductor Corporation
PO3B3125A
High-Bandwidth, 4-Bit, 2-Port Bus Switch
w/ Individual Enables
High Bandwidth Potato Chip
12/26/08
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
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.
Storage Temperature ................................................ –65°C to +150°C
Ambient Temperature with Power Applied ............... –40°C to +85°C
Supply Voltage to Ground Potential ........................... –0.5V to +4.6V
DC Input Voltage ........................................................ –0.5V to +Vcc
DC Output Current................................................................... 120mA
Power Dissipation ....................................................................... 0.5W
(Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 3.3V ±10%)
Parameters
V
IH
V
IL
I
IH
I
IL
I
OZH
R
ON
Description
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
DC Electrical Characteristics, 3.3V Supply
Test Conditions
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
V
CC
= Min., V
IN
= 0.0V,
Switch On-Resistance
I
ON
= -48 mA or -64mA
V
CC
= Min., V
IN
= V
CC
, I
ON
= -15 mA
Min.
2.0
0.8
±1
±1
±1
10
12
14
16
Ω
µA
Typ.
Max.
Units
V
High Impedance Output Current
0
≤
Y, In
≤
V
CC
(Over Operating Range, T
A
= –40°C to +85°C, V
CC
= 2.5V ± 10%)
Parameters
V
IH
V
IL
I
IH
I
IL
I
OZH
R
ON
Description
Input HIGH Voltage
Inout LOW Voltage
Input HIGH Current
Input LOW Current
High Impedance Current
Switch On Resistance
DC Electrical Characteristics, 2.5V Supply
Test Conditions
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0
≤
Y,
In
≤
V
CC
V
CC
= Min., V
IN
= 0.0V,
I
ON
= –48mA
V
CC
= Min., V
IN
= Vcc,
I
ON
= -15mA
12
14
Min.
1.8
–0.3
Typ.
Max.
V
CC
+ 0.3
0.8
±1
±1
±1
16
Ω
18
µA
Units
V
2
Copyright
© Potato Semiconductor Corporation
PO3B3125A
High-Bandwidth, 4-Bit, 2-Port Bus Switch
w/ Individual Enables
High Bandwidth Potato Chip
02/04/08
Power Supply Characteristics
Symbol
Description
Quiescent Power Supply Current
Test Conditions (1)
Vcc=Max, Vin=Vcc or GND
Min
Typ
Max
Unit
Icc
Notes:
1.
2.
3.
4.
5.
-
0.1
3
uA
For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
Typical values are at Vcc = 3.3V, 25°C ambient.
This parameter is guaranteed but not tested.
Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
VoH = Vcc – 0.6V at rated current
Capacitance
Parameters
C
IN
C
OFF
C
ON
(T
A
= 25°C f = 1 MHz)
Test Conditions
V
IN
= 0V
V
IN
= 0V
V
IN
= 0V
Typ.
3.5
4.0
8.0
Units
pF
pF
pF
Description
Input Capacitance
A/B Capacitance, Switch Off
A/B Capacitance, Switch On
Dynamic Electrical Characteristics Over the Operating Range
(T
A
= -40º to +85º, V
CC
= 3.3V ± 10%)
Parameter
X
TALK
O
IRR
BW
Description
Crosstalk
Off-Isolation
-3dB Bandwidth
Test Condition
R
L
= 100Ω
R
L
= 100Ω
R
L
= 100Ω
Typ.
-60
-60
1.4
Units
dB
GHz
Switching Characteristics over 3.3V Operating Range
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propogation Delay
Bus Enable Time
See Test Diagram
Bus Disable Time
3.0
Conditions
See Test Diagram
Max.
0.3
2.0
ns
Units
3
Copyright
© Potato Semiconductor Corporation
PO3B3125A
High-Bandwidth, 4-Bit, 2-Port Bus Switch
w/ Individual Enables
High Bandwidth Potato Chip
02/04/08
Switching Characteristics over 2.5V Operating Range
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propogation Delay
Bus Enable Time
See Test Diagram
Bus Disable Time
3.0
Conditions
See Test Diagram
Max.
0.3
2.0
ns
Units
Test Circuit for Electrical Characteristics
6.0V
V
CC
Switch Positions
Test
t
PLZ
, t
PZL
t
PHZ
, t
PZH
Prop Delay
Switch
6.0V
GND
Open
200-ohm
Pulse
Generator
V
IN
V
OUT
D.U.T
R
T
10pF
C
L
200-ohm
Switching Waveforms
SEL
2.5V
1.25V
tPZL
VDD/2
1.25V
0V
Output
tPLZ
VOL +0.3V
tPHZ
VDD/2
Output
VOH –0.3V
VOH
VOL
VOH
VOL
3.5V
Input
t
PLH
Output
2.5V
2.5V
2.5V
1.5V
t
PHL
V
OH
2.5V
V
OL
tPZH
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
4
Copyright
© Potato Semiconductor Corporation
PO3B3125A
High-Bandwidth, 4-Bit, 2-Port Bus Switch
w/ Individual Enables
High Bandwidth Potato Chip
02/04/08
Packaging Mechanical Drawing: 14 pin TSSOP
14
0.240
0.264
0.169
0.177
4.3
4.5
6.1
6.7
1
0.193
0.201
4.90
5.10
0.047
1.20
max.
SEATING PLANE
0.0256
typical
0.65
0.007
0.012
0.19
0.30
0.002 0.05
0.006 0.15
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
5
Copyright
© Potato Semiconductor Corporation
FPGA/CPLD
