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CWB308CY Schematic ( PDF Datasheet ) - Calogic LLC

Teilenummer CWB308CY
Beschreibung CMOS/DMOS Quad Monolithic SPST Wide Band Analog Switches
Hersteller Calogic LLC
Logo Calogic  LLC Logo 




Gesamt 7 Seiten
CWB308CY Datasheet, Funktion
CORPORATION
CMOS/DMOS
Quad Monolithic SPST
Wide Band Analog Switches
CWB308 / CWB309
FEATURES
Low Insertion Loss . . . . . . . . . . . . . 0.9 x DC @ 100MHz
Low Channel-to-Channel Crosstalk. . . . . . . . . . . . -80dB
High OFF Isolation . . . . . . . . . . . . . . . . . 68dB @ 10MHz
Fast Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . <140ns
•• Low ON Resistance . . . . . . . . . . . . . . . . . . . . . . 40(typ)
APPLICATIONS
High Speed Multiplexing
RF & Video Switches
Sample and Hold Switches
Track and Hold Switches
•• Computer Peripherals
DESCRIPTION
The Calogic CWB308 and CWB309 feature fast switching
(<140ns) and low ON resistance (<40) for excellent
performance in applications in communications, computer
peripherals and instrument controls. This series combines
low power CMOS input logic and level translation circuitry with
high speed, low capacitance DMOS switches in a monolithic
structure. The CWB308 and CWB309 have CMOS
compatible inputs and also have a standard pin configuration
for second sourcing.
ORDERING INFORMATION
Part
CWB308CP
CWB308CY
XCWB308
CWB309CP
CWB309CY
XCWB309
Package
Temperature Range
Plastic 16-Pin Dip
0 to +85oC
Plastic SO-16 Surface Mount 0 to +85oC
Sorted Chips in Carriers
0 to +85oC
Plastic 16-Pin Dip
0 to +85oC
Plastic SO-16 Surface Mount 0 to +85oC
Sorted Chips in Carriers
0 to +85oC
PIN CONFIGURATION
FUNCTIONAL BLOCK DIAGRAMS
IN1 1
D1 2
S1 3
V- 4
GND 5
S4 6
D4 7
IN4 8
SO-16
16-PIN DIP
16 IN2 IN1 1
15 D2
D1 2
14 S2
S1 3
13 V+
V- 4
12 N/C GND 5
11 S3
S4 6
10 D3
D4 7
9 IN3 IN4 8
16 IN2
15 D2
14 S2
13 V+
12 N/C
11 S3
10 D3
9 IN3
CWB
TOP VIEW
CWB308CY
CWB309CY
TOP VIEW
CWB308CP
CWB309CP
CWB308
IN 1
IN 2
IN 3
IN 4
S1
IN 1
D1
S2
IN2
D2
S3
IN3
D3
S4
IN4
D4
CWB309
Four SPST Switches per Package.
Switches shown in Logic '1' Input Position.
S1
D1
S2
D2
S3
D3
S4
D4
LOGIC TABLE
Logic
0
1
CWB308
OFF
ON
CWB309
ON
OFF
All devices contain diodes to protect inputs against damage due
to high static voltages or electric fields; however, it is advised that
precautions be taken not to exceed the maximum recommended
input voltages. All unused inputs must be connected to an
appropriate logic level (either Vcc or GND).






CWB308CY Datasheet, Funktion
CWB308 / CWB309
CORPORATION
DISTORTION -VS- FREQUENCY
V+
C
HP
GENERATOR
(or equivalent)
HP
SPECTRUM
ANALYSER
(or equivalent)
D
50
LOGIC 1 = +5V
S
50
C
HARMONIC DISTORTION
C = 0.22µ F // 10 µ F
V-
10MHz - 40MHz
TOTAL HARMONIC DISTORTION
-VS-
0.80
FREQUENCY
V-, V+ = +_10V Vanalog = 1.0Vrms
0.50 V-, V+ = +_15V Vanalog = 1.0Vrms
V-, V+ = +_15V Vanalog = 0.3Vrms
0.20
0.10
TA = +25 oC
0.05
10
20
f - Frequency (MHz)
40
10.0
5.0
2.0
1.0
0.3
0.1
0.05
0.02
DISTORTION
-VS-
ANALOG INPUT VOLTAGE
V- = -15V, V+ = +15V
f = 10KHz, RL = 50 TA = +25oC
Total Harmonic
Compensated
0.3 1.0
Vanalog - Analog Input (Vrms)
3.0 5.0
POWER SUPPLY REJECTION RATIO POWER SUPPLY DECOUPLING CIRCUIT
.22 µF
1K
V+
IN IL
LT
SD
.22 µF
1K
V-
POWER SUPPLY REJECTION RATIO
-VS-
FREQUENCY
90
-PSRR, +PSRR with Decoupling
80
70
-PSRR
60
V- = 15V, V+ = +15V
50
VMOD= 4.0V -f-p
+PSRR
40
CWB309CP TA = +25 oC
30
0.1 0.2
0.5 1.0
2.0
w/o Decoupling
5.0 10.0
f - Frequency (MHz)
20
By inserting 1K ohm resistors in series with V+ and V-
power supply lines and decoupling both pins at the device
socket, it is possible to improve power supply rejection
ratios of a video switch by 50dB at frequencies of 20MHz
and higher.

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