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IDTQS4A201 HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH(R) PRODUCTS HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT SWITCH
* * * * * * * * * * *
IDTQS4A201
FEATURES:
Low ON resistance: rDS(ON) = 5 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 Ultra-low quiescent current: 3A Switch turn on time of 6.5ns Available in QSOP package
DESCRIPTION:
APPLICATIONS:
* * * * * * * *
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 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 The QS4A201 is characterized for operation at -40C to +85C.
FUNCTIONAL BLOCK DIAGRAM
A0 C0
B0
D0
A4
C4
B4
D4
S E
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
CO NTROL LOGIC
INDUSTRIAL TEMPERATURE RANGE
1
c 2000 Integrated Device Technology, Inc.
AUGUST 2000
DSC-5553/1
IDTQS4A201 HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
E C0 A0 B0 D0 C1 A1 B1 D1 C2 A2 GND
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 -0.5 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
1 2 3 4 5 6 7 8 9 10 11 12
QSOP TOP VIEW
24 23 22 21 20 19 18 17 16 15 14 13
VCC D4 B4 A4 C4 D3 B3 A3 C3 D2 B2 S
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 E S I/O I/O I/O I I Ports A, B Ports C, D Bus Switch Enable Bus Exchange Description
FUNCTION TABLE(1)
E H L L S X L H Ax Z Cx Dx Bx Z Dx Cx Function Disable Enable Exchange
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance
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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 = -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 tTRANS tON(E) tOFF(E) tPD f3dB XTALK C(OFF) C(ON) QCI Input HIGH Voltage Input LOW Voltage Exchange Switching Time S to Cx, Dx Enable Turn-On Time E to Cx, Dx Enable Turn-Off Time E to Cx, 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 Transition Time) 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 -- -- -- -- -- -- -- -- 1.3 -40 -40 5 10 1.5 250 -- -- -- -- -- -- ps GHz dB dB pF pF pC 0.5 -- 6 ns 0.5 -- 6.5 ns 2 -- 0.5 -- -- -- -- 0.8 6.6 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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IDTQS4A201 HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS
180 VCC = 5V RL = 75 150
60 VCC = 5V RL = 75 50
120
40
(d B )
Crosstalk 60 Off-isolation 30
(dB)
90
30
20 Crosstalk
Off-isolation
10
0 1K 10K 100K 1M 10M 100M 1G 10G
Freq uen cy (H z)
0 100M
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|
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
1
0 RL = 75
120 Crosstalk
(dB)
1
100
(dB)
2
80 Off-isolation 60
3
4
40 10K
5
20K
30K 40K 50K Frequency (Hz)
60K
70K
6 1K
VCC = 5V 10K 100K 1M 10M 100M 1G 10G
Off-isolation and Crosstalk vs. Frequency
NOTES: 1. Crosstalk = 20 log |VO/VS| 2. Off-isolation = 20 log |VO/VS|
Frequency (Hz)
Insertion Loss vs. Frequency
NOTE: 1. Insertion Loss = 20 log |VO/VS|
4
IDTQS4A201 HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS (CONTINUED)
2
18
1
16
r DS (On) - Drain Source On-resistance( )
0
(dB )
14
RL = 75 1
12 VCC = 4.75V 10
2
3 500M
VCC = 5V 600M 700M 800M 900M 1G 1.1G
8
Frequen cy (Hz)
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
5
IDTQS4A201 HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS
5V
Vcc
A0-A3 B0-B3 C0-C3
E
SELECT INPUT t SWITCH t SWITCH
3.0V 1.5V 0V
VIN 50
QS4A201
S
A4
SWITCH OUTPUT
1.5V
B4 GND
5V
C4 500
VOUT 50 pF
Transition Time
5V
3.0V 1.5V 0V
Vcc
A0-A3 C0-C3
CONTROL INPUT
S
0.3V
VIN
E 50
QS4A201
A4
5V
OUTPUT t OFF(E)
3.0V CONTROL
GND
1.5V 0V t ON(E)
C4 500
VOUT 50 pF
INPUT
OUTPUT
0.3V
Switching Time
6
IDTQS4A201 HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS (CONTINUED)
5V Vcc VS A4 C4 RL = 75 QS4A201 VOUT
5V Vcc VOUT RL = 75 B4 QS4A201
A4 VS
C4
ES
GND
ES
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 A4 C4 VOUT RL = 75
VS
QS4A201
ES
GND
Off-Isolation
NOTES: 1. Off-isolation = 20 log |VO/VS| 2. All unused pins are grounded.
7
IDTQS4A201 HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDTQS XXXXX Device Type XX Package
Q
Quarter Size Outline Package
4A201
High Performance CMOS Two-by-Two Analog Cross Point 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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