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IDTQS4A110 HIGH-PERFORMANCE CMOS TWO-CHANNEL 5PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH(R) PRODUCTS HIGH-PERFORMANCE CMOS TWO CHANNEL 5PST SWITCH
FEATURES:
* * * * * * * * * *
IDTQS4A110
Low ON resistance: rDS(ON) = 5 Wide bandwidth: 1.8GHz (-3dB point) Crosstalk: 100dB at 50KHz, -70dB at 5MHz, -50dB at 30MHz Off-isolation: -70dB at 50KHz, -45dB at 5MHz, -40dB at 30MHz Single 5V supply Bidirectional TTL-compatible control inputs Ultra-low quiescent current: 3A Switch turn on time of 6.5ns Available in QSOP package
DESCRIPTION:
APPLICATIONS:
* * * * * * * *
The QS4A110 is a high-performance CMOS two-channel 5PST switch with 3-state outputs. The low ON resistance of the QS4A110 allows inputs to be connected to outputs with low insertion loss and high bandwidth. The QS4A110, with 1.8GHz 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 QS4A110 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 The QS4A110 is characterized for operation at -40C to +85C.
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
FUNCTIONAL BLOCK DIAGRAM
A0 A1 A2 A3 A4 B0 B1 B2 B3 B4 C0 C1 C2 C3 C4 D0 D1 D2 D3 D4
E1 E2
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-5554/1
IDTQS4A110 HIGH-PERFORMANCE CMOS TWO-CHANNEL 5PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
E1 C0 A0 A1 C1 C2 A2 A3 C3 C4 A4 GND 1 2 3 4 5 6 7 8 9 10 11 12
QSOP TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Supply Voltage to Ground DC Switch Voltage VS Analog Input Voltage DC Input Voltage VIN AC Input Voltage (pulse width 20ns) DC Output Current Maximum Power Dissipation Storage Temperature Max -0.5 to +7 0 to +7 0 to +7 0 to +7 -3 120 0.7 -65 to +150 Unit V V V V V mA W C
24 23 22 21 20 19 18 17 16 15 14 13
VCC D4 B4 B3 D3 D2 B2 B1 D1 D0 B0 E2
VTERM(2) VTERM(3) -- VTERM(3) VAC IOUT PMAX TSTG
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
Pin Names Ax, Bx Cx, Dx E1 -E2 I/O I/O I/O I Ports A, B Ports C, D Enable Description
FUNCTION TABLE(1)
E1 H L H L E2 H H L L Ax, Cx I/Os Disconnected Ax = Cx Disconnected Ax = Cx Bx, Dx I/Os Disconnected Disconnected Bx = Dx Bx = Dx
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level
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IDTQS4A110 HIGH-PERFORMANCE CMOS TWO-CHANNEL 5PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5V 5%
Symbol Analog Switch VIN rDS(ON) IC(OFF) IC(ON) Analog Signal Range(2) Drain-source ON resistance(2,3) Channel Off Leakage Current Channel On Leakage Current Vcc = Min., VIN = 0V, ION = 30mA Vcc = Min., VIN = 2.4V, ION = 15mA Ax, Bx = Vcc or 0V; Cx, Dx = 0V or Vcc; E = Vcc Ax = Bx = 0V (each channel is turned on sequentially) Digital Control VIH VIL tON(E) tOFF(E) tPD f3dB XTALK C(OFF) C(ON) QCI Input HIGH Voltage Input LOW Voltage Enable Turn-On Time E to Ax, Bx, Cx, or Dx Enable Turn-Off Time E to Ax, Bx, Cx, or Dx Group Delay(2,4a) -3dB Bandwidth Off-isolation Crosstalk Switch Off Capacitance Switch On Capacitance Charge Injection Guaranteed Logic HIGH for Control Pins Guaranteed Logic LOW for Control Pins RL = 1K, CL = 100pF (See Switching Time) RL = 1K, CL = 100pF (See Switching Time) RL = 1K, CL = 100pF VIN = 0 to 1V, 1Vp-p, RL = 75 VIN = 0 to 1V, 1Vp-p, RL = 75, f = 5.5MHz VIN = 0 to 1V, 1Vp-p, RL = 75, f = 5.5MHz E = Vcc, VIN = VOUT = 0V E = 0V, VIN = VOUT = 0V -- -- -- -- -- -- -- -- 1.8 -45 -70 5 10 1.5 250 -- -- -- -- -- -- ps GHz dB dB pF pF pC 0.5 -- 6.5 ns 2 -- 0.5 -- -- -- -- 0.8 6 V V ns -0.5 -- -- -- -- 1 5 13 1 1 Vcc - 1 7 17 -- -- nA nA V Parameter Test Conditions Min. Typ.(1) Max. Unit
Dynamic Characteristics
NOTES: 1. Typical values are at VCC = 5.0V, TA = 25C. 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 Max. 3 Unit A
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IDTQS4A110 HIGH-PERFORMANCE CMOS TWO-CHANNEL 5PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS
180 VCC = 5V RL = 75 150
60 VCC = 5V RL = 75 50
120
40
(dB )
(dB )
90 Crosstalk 60 Off-isolation
30 Crosstalk 20 Off-isolation
30
10
0 1K
10K
100K
1M
10M
100M
1G
10G
Freq uen cy (H z)
0 100M
200M
300M
400M
500M
600M
700M
Frequency (Hz)
Off-isolation and Crosstalk vs. Frequency
NOTES: 1. Crosstalk = 20 log |VO/VS| 2. Off-isolation = 20 log |VO/VS|
Off-isolation and Crosstalk vs. Frequency
NOTES: 1. Crosstalk = 20 log |VO/VS| 2. Off-isolation = 20 log |VO/VS|
160 VCC = 5V RL = 75 140
2
1
120 Crosstalk
(dB )
0 R L = 75 1
100
Off-isolation 60
3
40 10K
(dB )
80
2
4
20K
30K
40K
50K
60K
70K
5
Frequen cy (H z)
Off-isolation and Crosstalk vs. Frequency
6 1K
V C C = 5V 10K 100K 1M 10M 100M 1G 10G
NOTES: 1. Crosstalk = 20 log |VO/VS| 2. Off-isolation = 20 log |VO/VS|
Freq uen cy (H z)
Insertion Loss vs. Frequency
NOTE: 1. Insertion Loss = 20 log |VO/VS|
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IDTQS4A110 HIGH-PERFORMANCE CMOS TWO-CHANNEL 5PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS (CONTINUED)
2
18
1
16
r DS (On) - Drain Source On-resistance( )
0
(d B)
14
R L = 75 1
12 VCC = 4.75V 10
2 V C C = 5V 3 500M 600M 700M 800M 900M 1G 1.1G
Freq uen cy (H z)
8
6
Insertion Loss vs. Frequency
NOTE: 1. Insertion Loss = 20 log |VO/VS|
4 0.0 0.5 1.0 1.5 VIN (Volts)
RON LINK
2.0
2.5
3.0
On-Resistance vs. VIN
TEST CIRCUITS
5V 5V Vcc A0-A3 C0-C3 E2 A4 E1 500 5V
CONTROL INPUT t ON(E) 3.0V 1.5V 0V
VIN
QS4A110
OUTPUT
0.3V
GND
OUTPUT
0.3V
C4 500
VOUT 50 pF
t OFF(E)
Switching Time 5
IDTQS4A110 HIGH-PERFORMANCE CMOS TWO-CHANNEL 5PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS (CONTINUED)
5V
5V
Vcc VS
A1
Vcc
C1 RL = 75
VOUT
A4
C4 RL = 75 QS4A110
VOUT
VS B4 QS4A110
5V E2 E1
5V E2
GND
E1
GND
Insertion Loss
NOTES: 1. Insertion Loss = 20 log |VO/VS| 2. All unused pins are grounded. NOTES: 1. Crosstalk = 20 log |VO/VS| 2. All unused pins are grounded.
Crosstalk
5V
Vcc VS A1 C1 RL = 75 QS4A110 5V E1 E2 GND VOUT
Off-Isolation
NOTE: 1. Off-isolation = 20 log |VO/VS|
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IDTQS4A110 HIGH-PERFORMANCE CMOS TWO-CHANNEL 5PST SWITCH
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDTQS XXXXX Device Type XX Package
Q
Quarter Size Outline Package
4A110
High Performance CMOS Two Channel 5PST Switch
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
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