Crosstalk: -110dB at 50KHz, -68dB at 5MHz, -66dB at 30MHz
Off-isolation: -90dB at 50KHz, -60dB at 5MHz, -50dB at 30MHz
Single 5V supply
Can be used as multiplexer or demultiplexer
TTL-compatible control inputs
Ultra-low quiescent current: 9µA
µ
Available in QSOP package
APPLICATIONS:
•
•
•
•
•
•
•
•
•
High-speed video signal switching/routing
HDTV-quality video signal multiplexing
Audio signal switching/routing
Data acquisition
ATE systems
Telecomm routing
Switch between multiple video sources
Token Ring transceivers
High-speed networking
The QS4A215 is a high-performance CMOS six-channel multiplexer/
demultiplexer with individual enables. The low ON-resistance of the QS4A215
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 QS4A215 with 700MHz bandwidth makes it ideal for high-perfor-
mance video signal switching, audio signal switching, and telecom routing
applications. High performance and low power dissipation makes this
device ideal for battery operated and remote instrumentation applications.
The QS4A215 is offered in the QVSOP package which has several
advantages over conventional packages such as PDIP and SOIC, includ-
ing:
• Reduced signal delays due to denser component packaging on circuit
boards
• Reduced system noise due to less pin inductance, resulting in lower
ground bounce
The QS4A215 is characterized for operation at -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
I0A
I1A
YA
I2A
I3A
I0B
I1B
YB
I2B
I3B
I0 C
I1 C
YC
I2 C
I3 C
I0 D
I1 D
YD
I2 D
I3 D
I0E
I1E
YE
I2E
I3E
I0F
I1F
YF
I2F
I3F
S 0
AB
S 1
AB
EA
EB
CO NTRO L
LOG IC
S0
C D
S1
C D
EC
ED
CO NTRO L
LOG IC
S0
E F
S1
E F
EE
EF
CO NTRO L
LOG IC
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c
2000 Integrated Device Technology, Inc.
AUGUST 2000
DSC-5549/1
IDTQS4A215
HIGH-PERFORMANCE CMOS SIX-CHANNEL SP4T MUX/DEMUX
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Description
Supply Voltage to Ground
DC Switch Voltage V
S
Analog Input Voltage
DC Input Voltage V
IN
AC Input Voltage (pulse width
≤20ns)
DC Output Current
Maximum Power Dissipation
Storage Temperature
Max
–0.5 to +7
–0.5 to +7
–0.5 to +7
–0.5 to +7
–3
120
0.7
–65 to +150
Unit
V
V
V
V
V
mA
W
°C
EA
S1
AB
I3A
I2A
I1A
I0A
YA
GND
EC
S1
CD
I3C
I2C
I1C
I0C
YC
GND
EE
S1
EF
I3E
I2E
I1E
I0E
YE
GND
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
QVSOP
TOP VIEW
4
8
4
7
4
6
4
5
4
4
4
3
4
2
4
1
4
0
3
9
3
8
3
7
3
6
3
5
3
4
3
3
3
2
3
1
3
0
2
9
2
8
2
7
2
6
2
5
V
CC
EB
S0
AB
I3B
I2B
I1B
I0B
YB
V
CC
ED
S0
CD
I3D
I2D
I1D
I0D
YD
V
CC
EF
S0
EF
I3F
I2F
I1F
I0F
YF
V
TERM
(2)
V
TERM
(3)
—
V
TERM
(3)
V
AC
I
OUT
P
MAX
T
STG
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. V
CC
terminals.
3. All terminals except V
CC
.
PIN DESCRIPTION
Pin Names
Ixx
S
0XX
, S
1XX
Ex
Yx
I/O
I/O
I
I
I/O
Description
Demux Ports A-F
Select Inputs
Enable Inputs A-F
Mux Ports A-F
FUNCTION TABLE
(1)
Enable
EA
H
X
L
L
L
L
EB
X
H
L
L
L
L
S
1
X
X
L
L
H
H
Select
S
0
X
X
L
H
L
H
Mux/Demux
Ports
YA
Z
X
I
0
A
I
1
A
I
2
A
I
3
A
YB
X
Z
I
0
B
I
1
B
I
2
B
I
3
B
Function
Disable A
Disable B
S
1AB,
S
0AB
= 0
S
1AB,
S
0AB
= 1
S
1AB,
S
0AB
= 2
S
1AB,
S
0AB
= 3
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
2. This function table represents the function for block “AB”. The “CD” block
nomenclature substitutes “A” for “C” and “B” for “D”. The “EF” block nomenclature
substitutes “A” for “E” and “B” for “F”.
2
IDTQS4A215
HIGH-PERFORMANCE CMOS SIX-CHANNEL SP4T MUX/DEMUX
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= –40°C to +85°C, V
CC
= 5V ± 5%
Symbol
Analog Switch
V
IN
r
DS
(
ON
)
I
C(OFF)
I
C(ON)
Analog Signal Range
(2)
Drain-source ON resistance
(2,3)
Channel Off Leakage Current
Channel On Leakage Current
Vcc = Min., V
IN
= 0V, I
ON
= 30mA
Vcc = Min., V
IN
= 2.4V, I
ON
= 15mA
I
N
= Vcc or 0V; Y
N
= 0V or Vcc;
EX
= Vcc
I
N
= Y
N
= 0V
(each channel is turned on sequentially)
Digital Control
V
IH
V
IL
t
TRANS
t
ON(EN)
t
OFF(EN)
t
PD
f
3dB
X
TALK
C
MUX(OFF)
C
DEMUX(OFF)
C
MUX(ON)
C
DEMUX(ON)
Q
CI
Input HIGH Voltage
Input LOW Voltage
Switching Time of Mux
Sx to Yx
Enable Turn-On Time
EX
to Yx
Enable Turn-Off Time
EX
to Yx
Group Delay
(2,4)
-3dB Bandwidth
Off-isolation
Crosstalk
Mux Off Capacitance
Demux Off Capacitance
Mux On Capacitance
Demux On Capacitance
Charge Injection
Guaranteed Logic HIGH for Control Pins
Guaranteed Logic LOW for Control Pins
R
L
= 1KΩ, C
L
= 100pF
(See Transition Time)
R
L
= 1KΩ, C
L
= 100pF
(See Switching Time)
R
L
= 1KΩ, C
L
= 100pF
(See Switching Time)
R
L
= 1KΩ, C
L
= 100pF
V
IN
= 1Vp-p, R
L
= 75Ω
V
IN
= 1Vp-p, R
L
= 75Ω, f = 5MHz
V
IN
= 1Vp-p, R
L
= 75Ω, f = 5MHz
EX
= Vcc, V
IN
= V
OUT
= 0V
EX
= Vcc, V
IN
= V
OUT
= 0V
EX
= 0V, V
IN
= V
OUT
= 0V
EX
= 0V, V
IN
= V
OUT
= 0V
C
L
= 1000pF
—
—
—
—
—
—
—
—
—
—
700
-60
-68
6
14
20
20
1.5
250
—
—
—
—
—
—
—
—
ps
MHz
dB
dB
pF
pF
pF
pF
pC
0.5
—
6
ns
0.5
—
6
ns
2
—
0.5
—
—
—
—
0.8
6.6
V
V
ns
–0.5
—
—
—
—
1
5
13
10
10
Vcc - 1
7
17
—
—
nA
nA
V
Ω
Parameter
Test Conditions
Min.
Typ.
(1)
Max.
Unit
Dynamic Characteristics
NOTES:
1. Typical values are at V
CC
= 5.0V, T
A
= 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 (I, Y) 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.
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