ADVANCE INFORMATION
PI3CH401
Low Voltage, 5Ω, 4-Channel
2-Port
NanoSwitch
™
Features
•
•
•
•
•
•
•
•
•
•
•
Near-Zero propagation delay
5Ω switches connect inputs to outputs
High signal passing bandwidth (500 MHz)
Beyond Rail-to-Rail switching
5V I/O tolerant with 3.3V supply in OFF and ON state
2.5V and 3.3V supply voltage operation
Hot insertion capable
Industrial operating temperature: -40ºC to +85ºC
2KV ESD protection (human body model)
Latch-up performance >250mA per JESD17
Packaging (Pb-free & Green available):
– 16-pin 170-mil wide plastic TSSOP (L)
– 16-pin 150-mil wide plastic QSOP (Q)
– 20-contact TQFN (ZH)
Description
Pericom Semiconductor’s PI3CH series of switch circuits are
produced using the Company’s advanced submicron CMOS
technology, achieving industry leading performance.
The PI3CH401 is a low voltage, 4-channel switch designed with fast
indiviual enables. The switch introduces no additional propagation
delay or additional ground bounce noise.
Applications
•
•
•
•
High Bandwidth Data Switching
Hot-Docking
Analog Signal Switching
Differential Signal Switching
Block Diagram
A
0
EN
0
A
1
EN
1
A
2
EN
2
A
3
EN
3
B
3
B
2
B
1
B
0
Pin Configuration
N.C.
1
V
CC
20
19
18
N.C.
EN
0
A
0
B
0
EN
1
A
1
B
1
GND
1
2
3
4
5
6
7
8
16
15
V
CC
EN
3
A
3
B
3
EN
2
A
2
B
2
N.C.
N.C.
EN
0
A
0
B
0
EN
1
A
1
B
1
N.C.
2
3
4
5
6
7
8
9
10
11
N.C.
EN
3
A
3
B
3
EN
2
A
2
B
2
N.C.
16
Pin
L, Q
14
13
12
11
10
9
20
Contact
ZH
17
16
15
14
13
12
GND
N.C.
Truth Table
(1)
ENx
X
(2)
L
H
Ax
Hi-Z
Hi-Z
Bx
Bx
Hi-Z
Hi-Z
Ax
V
CC
GND
V
CC
V
CC
Function
Disconnect
Disconnect
Connect
Notes:
1. N.C = No internal connection
Pin Description
Pin Name
EN
x
A
3
- A
0
B
3
- B
0
GND
V
CC
Description
Switch Enable
A Ports
B Ports
Ground
Power
Notes:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High-Impedance
2. A pull-up resistor should be provided for power-up protection.
1
P-0.4
07/27/04
ADVANCE INFORMATION
PI3CH401
Low Voltage, 5Ω, 4-Channel
2-Port
NanoSwitch
™
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
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 +6.0V
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 re-
liability.
DC Electrical Characteristics, 3.3V Supply
(Over Operating Range, T
A
= –40°C to +85°C, V
CC
= 3.3V ± 10%)
Parameters
V
IH
V
IL
V
IK
I
IH
I
IL
I
OZH
R
ON
Description
Input HIGH Voltage
Input LOW Voltage
Clamp diode Voltage
Input HIGH Current
Input LOW Current
High-Impedence Current
Switch On-Resistance
(3)
Test Conditions
(1)
Min.
2
–0.5
—
—
—
—
—
—
Typ.
(2)
—
—
–1.3
—
—
—
4
5
Max.
—
0.8
–1.8
±1
±1
±1
6
8
Ω
µA
V
Units
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Min., I
IN
= –18mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0 ≤ A, B ≤ V
CC
V
CC
= Min.,V
IN
= 0V,
I
ON
= –48mA or –64mA
V
CC
= Min., V
IN
= 3.6V, I
ON
= –15mA
DC Electrical Characteristics, 2.5V Supply
(Over Operating Range, T
A
= –40°C to +85°C, V
CC
= 2.5V ± 10%)
Parameters
(5)
Description
Input HIGH Voltage
Inout LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input LOW Current
High Impedance Current
Switch
On-Resistance
(3)
Test Conditions
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max., I
IN
= –6mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0 ≤ A, B ≤ V
CC
V
CC
= Min., V
IN
= 0V,
I
ON
= –48mA
V
CC
= Min., V
IN
= 2.25V,
I
ON
= -15mA
Min.
1.8
–0.3
–
–
–
–
–
–
Typ.
–
–
–0.7
–
–
–
4
7
Max.
V
CC
+ 0.3
0.8
–1.8
±1
±1
±1
8
Ω
14
µA
V
Units
V
IH
V
IL
V
IK
I
IH
I
IL
I
OZH
R
ON
2
P-0.4
07/27/04
ADVANCE INFORMATION
PI3CH401
Low Voltage, 5Ω, 4-Channel
2-Port
NanoSwitch
™
Capacitance
(T
A
= 25°C f = 1 MHz)
Parameters
(4)
C
IN
C
OFF
C
ON
Description
Input Capacitance
A/B Capacitance, Switch Off
A/B Capacitance, Switch On
V
IN
= 0V
Test Conditions
Typ.
2.1
3.1
6.6
pF
Units
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, T
A
= 25°C ambient and maximum loading.
3. Measured by the voltage drop between A and B pin at indicated current through the switch. On-Resistance is determined
by the lower of the voltages on the two (A,B) pins.
4. This parameter is determined by device characterization but is not production tested.
Power Supply Characteristics
Parameters
Description
I
CC
Quiescent Power Supply Current
Test Conditions
(1)
V
CC
= 3.6V, V
IN
= GND or V
CC
Min.
Typ.
(2)
Max.
0.8
Units
mA
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
3
P-0.4
07/27/04
ADVANCE INFORMATION
PI3CH401
Low Voltage, 5Ω, 4-Channel
2-Port
NanoSwitch
™
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
10 MHz
10 MHz
See Test Diagram
200
Min.
Typ.
-78
-60
500
Max.
Units
dB
MHz
Switching Characteristics over 3.3V Operating Range
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propogation Delay
(2,3)
Ax to Bx,Bx to Ax
Enable Time ENx to Ax or Bx
See Test Diagram
Disable Time ENx to Ax or Bx
1.5
9.0
Conditions
(1)
See Test Diagram
1.5
Com.
Min.
Typ.
Max.
0.3
9.0
ns
Units
Switching Characteristics over 2.5V Operating Range
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propogation Delay
(2,3)
Ax to Bx,Bx to Ax
Enable Time ENx to Ax or Bx
See Test Diagram
Disable Time ENx to Ax or Bx
1.5
12.0
Conditions
(1)
See Test Diagram
1.5
Com.
Min.
Max.
0.3
15.0
ns
Units
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time
constant for the switch alone is of the order of 0.25ns for 10pF load. Since this time constant is much smaller than the rise/fall times of typical
driving signals, it adds very little propagational delay to the system. Propagational delay of the switch when used in a system is determined by
the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
4
P-0.4
07/27/04
ADVANCE INFORMATION
PI3CH401
Low Voltage, 5Ω, 4-Channel
2-Port
NanoSwitch
™
Test Circuit for Electrical Characteristics
(1)
6.0V
VCC
200Ω
Pulse
Generator
VIN
D.U.T
RT
VOUT
10pF
CL
200Ω
Notes:
1. C
L
= Load capacitance: includes jig and probe capacitance.
2. R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse Generator
3. All input impulses are supplied by generators having the following characteristics: PRR
≤
MHz, Z
O
= 50Ω, t
R
≤
2.5ns, t
F
≤
2.5ns.
4. The outputs are measured one at a time with one transition per measurement.
Switch Positions
Test
t
PLZ
, t
PZL
t
PHZ
, t
PZH
Prop Delay
Switch
6.0V
GND
Open
Test Circuit for Dynamic Electrical Characteristics
S1
HP4396A
R1
T1
VCC
HP11667A
D.U.T
5
P-0.4
07/27/04
模拟电子
