IDT IDTQS4A201Q

IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS
HIGH-PERFORMANCE CMOS
TWO-BY-TWO ANALOG
CROSS POINT SWITCH
FEATURES:
DESCRIPTION:
Ω
Low ON resistance: rDS(ON) = 5Ω
Fast transition time: tTRAN = 6ns
Wide bandwidth: 1.3GHz (-3dB point)
Crosstalk: 90dB at 50KHz, -40dB at 5MHz, -30dB at 30MHz
Off-isolation: -70dB at 50KHz, -40dB at 5MHz, -30dB at
30MHz
Single 5V supply
Can be used as multiplexer or demultiplexer
TTL-compatible control inputs
µA
Ultra-low quiescent current: 3µ
Switch turn on time of 6.5ns
Available in QSOP package
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The QS4A201 is a high-performance CMOS two-by-two analog cross
point switch. This device provides two sets of five high-speed CMOS
switches providing "cross point" connection between inputs and outputs.
The low ON resistance of the QS4A201 allows inputs to be connected to
outputs with low insertion loss and high bandwidth. TTL-compatible control
circuitry with “Break-Before-Make” feature prevents contention.
The QS4A201 with 1.3GHz bandwidth makes it ideal for high-performance video signal switching, audio signal switching, and telecomm routing
applications. High performance and low power dissipation makes this
device ideal for battery operated and remote instrumentation applications.
The QS4A201 is offered in the QSOP package and has several
advantages over conventional packages such as PDIP and SOIC, including:
• Reduced signal delays due to denser component packaging on circuit
boards
• Reduced system noise due to less pin inductance
APPLICATIONS:
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IDTQS4A201
High-speed video signal switching/routing
HDTV-quality video signal routing
Phase reversal
Data acquisition
ATE systems
Telecomm routing
Token Ring transceivers
High-speed networking
The QS4A201 is characterized for operation at -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
A0
C0
B0
D0
A4
C4
B4
D4
S
E
CO NTROL
LOGIC
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
AUGUST 2000
1
c
2000 Integrated Device Technology, Inc.
DSC-5553/1
IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
Description
VTERM(2)
Max
Unit
VTERM(3)
Supply Voltage to Ground
–0.5 to +7
V
DC Switch Voltage VS
–0.5 to +7
V
E
C0
1
24
VCC
2
23
D4
—
Analog Input Voltage
–0.5 to +7
V
A0
3
22
B4
VTERM(3)
DC Input Voltage VIN
–0.5 to +7
V
B0
4
21
A4
VAC
AC Input Voltage (pulse width ≤20ns)
–3
V
D0
5
20
C4
IOUT
DC Output Current
120
mA
PMAX
Maximum Power Dissipation
0.7
W
C1
6
19
D3
TSTG
Storage Temperature
–65 to +150
°C
A1
7
18
B3
B1
8
17
A3
D1
9
16
C3
C2
10
15
D2
A2
11
12
14
B2
13
S
GND
NOTES:
1. Stresses greater than those listed under ABSOLUTE 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.
2. VCC terminals.
3. All terminals except VCC .
PIN DESCRIPTION
QSOP
TOP VIEW
Pin Names
I/O
Ax, Bx
I/O
Ports A, B
Description
Cx, Dx
I/O
Ports C, D
E
I
Bus Switch Enable
S
I
Bus Exchange
FUNCTION TABLE(1)
E
S
Ax
Bx
Function
H
X
Z
Z
Disable
L
L
Cx
Dx
Enable
L
H
Dx
Cx
Exchange
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
2
IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5V ± 5%
Symbol
Parameter
Test Conditions
Min.
Typ.(1) Max.
Unit
Analog Switch
VIN
Analog Signal Range(2)
rDS(ON)
Drain-source ON resistance(2,3)
IC(OFF)
Channel Off Leakage Current
IC(ON)
Channel On Leakage Current
–0.5
1
Vcc - 1
V
Vcc = Min., VIN = 0V, ION = 30mA
—
5
7
Ω
Vcc = Min., VIN = 2.4V, ION = 15mA
—
13
17
Ax, Bx = Vcc or 0V; Cx, Dx = 0V or Vcc; E = Vcc
—
1
—
nA
Ax = Bx = 0V
—
1
—
nA
(each channel is turned on sequentially)
Digital Control
VIH
Input HIGH Voltage
Guaranteed Logic HIGH for Control Pins
2
—
—
V
VIL
Input LOW Voltage
Guaranteed Logic LOW for Control Pins
—
—
0.8
V
Exchange Switching Time
RL = 1KΩ, CL = 100pF
0.5
—
6.6
ns
S to Cx, Dx
(See Transition Time)
0.5
—
6.5
ns
0.5
—
6
ns
Dynamic Characteristics
tTRANS
tON(E)
tOFF(E)
Enable Turn-On Time
RL = 1KΩ, CL = 100pF
E to Cx, Dx
(See Switching Time)
Enable Turn-Off Time
RL = 1KΩ, CL = 100pF
E to Cx, Dx
(See Switching Time)
tPD
Group Delay(2,4a)
RL = 1KΩ, CL = 100pF
—
—
250
ps
f3dB
-3dB Bandwidth
VIN = 0 to 1V, 1Vp-p, RL = 75Ω
—
1.3
—
GHz
Off-isolation
VIN = 0 to 1V, 1Vp-p, RL = 75Ω, f = 5.5MHz
—
-40
—
dB
XTALK
Crosstalk
VIN = 0 to 1V, 1Vp-p, RL = 75Ω, f = 5.5MHz
—
-40
—
dB
C(OFF)
Switch Off Capacitance
E = Vcc, VIN = VOUT = 0V
—
5
—
pF
C(ON)
Switch On Capacitance
E = 0V, VIN = VOUT = 0V
—
10
—
pF
—
1.5
—
pC
QCI
Charge Injection
NOTES:
1. Typical values are at VCC = 5.0V, TA = 25°C.
2. Max value is guaranteed but not production tested.
3. Measured by voltage drop between A and C pins or B and D pins at indicated current through the switch. ON resistance is determined by the lower of the voltages on the
two (A, C, or B, D) pins.
4. The bus switch contributes no group delay other than the RC delay of the ON resistance of the switch and load capacitance. Group delay of the bus 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.
POWER SUPPLY CHARACTERISTICS
Symbol
ICC
Parameter
Supply Current
Test Conditions
VCC = Max., VIN = GND or VCC
3
Max.
Unit
3
µA
IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS
60
180
VCC = 5V
RL = 75Ω
150
50
120
40
90
30
(dB)
(d B )
V CC = 5V
R L = 75 Ω
Crosstalk
60
20
Off-isolation
Off-isolation
30
Crosstalk
10
0
1K
10K
100K
1M
10M
100M
1G
0
100M
10G
Freq uen cy (H z)
Off-isolation and Crosstalk vs. Frequency
200M
300M 400M 500M
Frequency (Hz)
600M
700M
Off-isolation and Crosstalk vs. Frequency
NOTES:
1. Crosstalk = 20 log |VO/VS|
2. Off-isolation = 20 log |VO/VS|
NOTES:
1. Crosstalk = 20 log |VO/VS|
2. Off-isolation = 20 log |VO/VS|
160
1
VCC = 5V
RL = 75Ω
140
0
120
1
RL = 75Ω
2
(dB)
(dB)
Crosstalk
100
80
Off-isolation
4
60
40
10K
3
5
20K
30K
40K
50K
Frequency (Hz)
60K
70K
VCC = 5V
6
1K
Off-isolation and Crosstalk vs. Frequency
10K
100K
1M
10M
100M
Frequency (Hz)
Insertion Loss vs. Frequency
NOTES:
1. Crosstalk = 20 log |VO/VS|
2. Off-isolation = 20 log |VO/VS|
NOTE:
1. Insertion Loss = 20 log |VO/VS|
4
1G
10G
IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS (CONTINUED)
18
1
16
r DS (On) - Drain Source On-resistance(Ω )
2
(dB )
0
R L = 75 Ω
1
2
3
500M
V CC = 5V
600M
700M
800M
900M
1G
1.1G
Frequen cy (Hz)
14
12
VCC = 4.75V
10
8
6
4
Insertion Loss vs. Frequency
0.0
0.5
1.0
1.5
2.0
2.5
3.0
VIN (Volts)
NOTE:
1. Insertion Loss = 20 log |VO/VS|
RON LINK
On-Resistance vs. VIN
5
IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS
5V
Vcc
A0-A3
B0-B3
C0-C3
3.0V
SELECT
E
1.5V
INPUT
QS4A201
VIN
0V
t SWITCH
A4
t SWITCH
S
SWITCH
1.5V
OUTPUT
50Ω
GND
B4
5V
C4
VOUT
500Ω
50 pF
Transition Time
5V
Vcc
3.0V
CONTROL
A0-A3
1.5V
INPUT
C0-C3
0V
S
VIN
E
0.3V
QS4A201
A4
5V
OUTPUT
t OFF(E)
50Ω
3.0V
CONTROL
GND
C4
500 Ω
VOUT
1.5V
INPUT
0V
t ON(E)
50 pF
OUTPUT
Switching Time
6
0.3V
IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS (CONTINUED)
5V
5V
Vcc
VS
A4
Vcc
A4
VOUT
C4
RL =
75Ω
VS
RL =
75Ω
B4
QS4A201
E S
QS4A201
GND
E S
Insertion Loss
NOTES:
1. Crosstalk = 20 log |VO/VS|
2. All unused pins are grounded.
5V
VS
Vcc
C4
A4
VOUT
RL =
75Ω
QS4A201
E S
GND
Crosstalk
NOTES:
1. Insertion Loss = 20 log |VO/VS|
2. All unused pins are grounded.
GND
Off-Isolation
NOTES:
1. Off-isolation = 20 log |VO/VS|
2. All unused pins are grounded.
7
VOUT
C4
IDTQS4A201
HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDTQS XXXXX
Device Type
XX
Package
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
Q
Quarter Size Outline Package
4A201
High Performance CMOS Two-by-Two Analog
Cross Point Switch
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
8
for Tech Support:
[email protected]
(408) 654-6459