IDT IDTQS4A105

IDTQS4A105
HIGH-PERFORMANCE CMOS TWO-CHANNEL 4PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS
HIGH-PERFORMANCE CMOS
TWO CHANNEL 4PST SWITCH
IDTQS4A105
FEATURES:
DESCRIPTION:
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The QS4A105 is a high-performance CMOS two-channel 4PST switch
with 3-state outputs. The low ON resistance of the QS4A105 allows inputs
to be connected to outputs with low insertion loss and high bandwidth.
The QS4A105, with 1.3GHz bandwidth, is ideal for high-performance
video signal switching, audio signal switching, and telecomm routing
applications. Low power dissipation makes this device ideal for battery
operated and remote instrumentation applications.
The QS4A105 is offered in the QSOP package which 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
Ω
Low ON resistance: rDS(ON) = 5Ω
Wide bandwidth: 1.3GHz (-3dB point)
Crosstalk: 100dB at 50KHz, -70dB at 5MHz, -50dB at 30MHz
Off-isolation: -90dB at 50KHz, -60dB at 5MHz, -55dB at
30MHz
Single 5V supply
Bidirectional signal flow
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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APPLICATIONS:
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High-speed video signal switching/routing
HDTV-quality video signal routing
Audio signal switching/routing
Data acquisition
ATE systems
Telecomm routing
Token Ring transceivers
High-speed networking
The QS4A105 is characterized for operation at -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
A1
C1
A2
C2
A3
C3
A4
C4
B1
D1
B2
D2
B3
D3
B4
D4
E1
E2
CO N TR O L
LO G IC
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
FEBRUARY 2009
1
c
2000 Integrated Device Technology, Inc.
DSC-5555/2
IDTQS4A105
HIGH-PERFORMANCE CMOS TWO-CHANNEL 4PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
Description
VTERM(2)
Max
Unit
Supply Voltage to Ground
–0.5 to +7
V
VTERM(3)
DC Switch Voltage VS
0 to +7
V
E1
A1
1
20
VCC
—
Analog Input Voltage
0 to +7
V
2
19
VTERM(3)
DC Input Voltage VIN
0 to +7
V
D4
3
18
E2
C1
VAC
AC Input Voltage (pulse width ≤20ns)
–3
V
IOUT
DC Output Current
120
mA
A2
4
B4
PMAX
Maximum Power Dissipation
0.7
W
D3
5
17
16
C2
TSTG
Storage Temperature
–65 to +150
°C
A3
6
B3
D2
7
15
14
A4
8
13
B2
D1
GND
9
12
C4
10
11
B1
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 .
C3
PIN DESCRIPTION
QSOP
TOP VIEW
Pin Names
I/O
Ax, Bx
I/O
Ports A, B
Description
Cx, Dx
I/O
Ports C, D
E1 -E2
I
Enable
FUNCTION TABLE(1)
E1
E2
Ax, Cx I/Os
H
H
Disconnected
Disconnected
L
H
Ax = Cx
Disconnected
H
L
Disconnected
Bx = Dx
L
L
Ax = Cx
Bx = Dx
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
2
Bx, Dx I/Os
IDTQS4A105
HIGH-PERFORMANCE CMOS TWO-CHANNEL 4PST SWITCH
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
—
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 = Cx = Dx = 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
Enable Turn-On Time
RL = 1KΩ, CL = 100pF
0.5
—
6.5
ns
E to Ax, Bx, Cx, or Dx
(See Switching Time)
0.5
—
6
ns
Dynamic Characteristics
tON(E)
tOFF(E)
Enable Turn-Off Time
RL = 1KΩ, CL = 100pF
E to Ax, Bx, Cx, or 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
—
-60
—
dB
XTALK
Crosstalk
VIN = 1Vp-p, RL = 75Ω, f = 5.5MHz
—
-70
—
dB
C(OFF)
Mux Off Capacitance
E = Vcc, VIN = VOUT = 0V
—
5
—
pF
C(ON)
Mux On Capacitance
E = 0V, VIN = VOUT = 0V
—
10
—
pF
Charge Injection
CL = 1000pF
—
1.5
—
pC
QCI
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
IDTQS4A105
HIGH-PERFORMANCE CMOS TWO-CHANNEL 4PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS
60
180
V C C = 5V
R L = 75 Ω
V CC = 5V
R L = 75 Ω
150
50
120
40
Crosstalk
(dB)
(dB )
Crosstalk
90
30
Off-isolation
20
60
Off-isolation
10
30
0
100M
0
1K
10K
100K
1M
10M
100M
1G
10G
200M
300M
400M
500M
600M
700M
F req u en cy (H z)
Frequen cy (H z)
Off-isolation and Crosstalk vs. Frequency
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|
4
160
V CC = 5V
R L = 75 Ω
2
120
0
(dB )
140
(dB )
Crosstalk
100
2
Off-isolation
80
4
60
6
1K
V C C = 5V
R L = 75 Ω
10K
100K
1M
10M
100M
Freq uen cy (H z)
40
10K
20K
30K
40K
50K
60K
70K
Freq uen cy (H z)
Insertion Loss vs. Frequency
Off-isolation and Crosstalk vs. Frequency
NOTE:
1. Insertion Loss = 20 log |VO/VS|
NOTES:
1. Crosstalk = 20 log |VO/VS|
2. Off-isolation = 20 log |VO/VS|
4
1G
10G
IDTQS4A105
HIGH-PERFORMANCE CMOS TWO-CHANNEL 4PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS (CONTINUED)
18
3
16
r DS (On) - Drain Source On-resistance(Ω )
4
(dB )
2
1
0
V C C = 5V
R L = 75 Ω
1
400M
500M
600M
700M
800M
900M
1G
Freq uen cy (H z)
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
TEST CIRCUITS
5V
5V
Vcc
3.0V
1.5V
0V
CONTROL
INPUT
A1-A3
C1-C3
E2
0.3V
A4
5V
QS4A105
VIN
OUTPUT
tOFF(E)
E1
50Ω
VOUT
GND
C4
CONTROL
INPUT
tON(E)
500Ω
3.0V
1.5V
0V
50 pF
OUTPUT
Switching Time
5
0.3V
IDTQS4A105
HIGH-PERFORMANCE CMOS TWO-CHANNEL 4PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS (CONTINUED)
5V
5V
Vcc
VS
A4
Vcc
A1
VOUT
C4
RL
75Ω
QS4A105
VS
RL
75Ω
B4
QS4A105
5V
5V
E2
E2
E1
E1
GND
Insertion Loss
NOTES:
1. Crosstalk = 20 log |VO/VS|
2. All unused pins are grounded.
5V
Vcc
VS
VOUT
C1
A1
GND
Crosstalk
NOTES:
1. Insertion Loss = 20 log |VO/VS|
2. All unused pins are grounded.
RL
75Ω
QS4A105
5V
E1
E2
GND
Off-Isolation
NOTE:
1. Off-isolation = 20 log |VO/VS|
6
VOUT
C1
IDTQS4A105
HIGH-PERFORMANCE CMOS TWO-CHANNEL 4PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
QS
XXXXX
Device Type
XX
Package
CORPORATE HEADQUARTERS
6024 Silver Creek Valley Road
San Jose, CA 95138
Q
QG
Quarter Size Outline Package
QSOP - Green
4A105
High Performance CMOS Two Channel 4PST Switch
for SALES:
800-345-7015 or 408-284-8200
fax: 408-284-2775
www.idt.com
7
for Tech Support:
[email protected]