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© 2013 TELEDYNE RELAYS (800) 284-7007 • www.teledynecoax.com CCT-38S Page 1 CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES
ELECTRICAL CHARACTERISTICS
Form Factor Multi-Throw, break before make Frequency Range DC–12 GHz Characteristic Impedance 50 Ohms Operate Time 20 ms (max.) Release Time 20 ms (max.) Actuation Voltage Available 12 15 24 28 V Actuation Current, max. @ ambient 580 720 345 405 mA ENVIRONMENTAL AND PHYSICAL CHARACTERISTICS Operating Temperature Commercial Model, CCT-38S –40°C to 65°C Vibration (MIL-STD-202 Method 214, Condition D, non-operating) 10 g’s RMS Shock (MIL-STD-202 Method 213, Condition D, non-operating) 500 g’s Standard Actuator Life Actuator Life w/ Additional Features 3,000,000 cycles 1,000,000 cycles Connector Type SMA Humidity (Moisture Seal) Available Weight 9 oz. (255.2G) (max.) PART NUMBER DESCRIPTION CCT-38S Commercial Normally Open Multi-throw, DC-12 GHz The CCT-38S is a broadband, multi-throw, electromechanical coaxial switch designed to switch a microwave signal from a common input to any of 9 or 10 outputs. The characteristic impedance is 50 Ohms. The switches are small using the popular connector spacing on a 1.740” dia. circle. Each position has an individual actuator mechanism allowing random position selection. This also gives the minimum switching time. With the normally open actuator, all paths are open when the switch is de-energized. PART NUMBERING SYSTEM For additional options, please contact factory. Actuator Voltage CCT-38 S 1 0 C - T ** Series Connectors Actuator Type Options Number of Positions * D-Sub Connector may be 15 or 26 pin depending on number of throws. (See Connector Pinout page) CONNECTOR ACTUATOR VOLTAGE NUMBER OF POSITIONS ACTUATOR TYPE OPTIONS S: SMA FEMALE 1: 28 VDC NORMALLY OPEN 9: SP9T 0: NO INDICATOR CONTACTS T : TTL DRIVERS WITH DIODES 2: 15 VDC NORMALLY OPEN 0: SP10TC : INDICATOR CONTACTS D : COIL TRANSIENT SUPPRESSION DIODES 3: 12 VDC NORMALLY OPEN S: D-SUB CONNECTOR* 4: 24 VDC NORMALLY OPEN TD: DECODERS AND TTL DRIVERS WITH DIODES **SEE PARTS LIST ON PAGE 10 M: MOISTURE SEAL PERFORMANCE CHARACTERISTICS Frequency DC–6 GHz 6–12 GHz Insertion Loss, dB, max. 0.20 0.40 Isolation, dB, min. 70 60 VSWR , max. 1.30:1 1.40:1
CCT-38S Page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2013 TELEDYNE COAX SWITCHES CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES SCHEMATICS AND MECHANICAL OUTLINE “-S OPTION” 15-PIN D-SUB OR 26-PIN D-MICRO CONNECTOR (EXAMPLE: CCT-38S180-S)
© 2013 TELEDYNE RELAYS (800) 284-7007 • www.teledynecoax.com CCT-38S Page 3 CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES CONNECTOR PINOUT FOR NORMALLY OPEN SP9T MULTI-THROW SWITCHES EXAMPLE CCT-38S190-S CCT-38S19C-S CCT-38S190-TS CCT-38S19C-TS CCT-38S190-TDS CCT-38S19C-TDS INDICATOR Y ES YES YES TTL Y ES YES DECODERS & TTL YES YES PIN NO. 15-PIN 26-PIN 15-PIN 26-PIN 15-PIN 26-PIN
1 PORT 1 PORT 1 TTL 1 TTL 1 LOGIC 1 LOGIC 1
2 PORT 2 PORT 2 TTL 2 TTL 2 LOGIC 2 LOGIC 2
3 PORT 3 PORT 3 TTL 3 TTL 3 LOGIC 3 LOGIC 3
4 PORT 4 PORT 4 TTL 4 TTL 4 LOGIC 4 LOGIC 4
5 PORT 5 PORT 5 TTL 5 TTL 5
6 PORT 6 PORT 6 TTL 6 TTL 6
7 PORT 7 PORT 7 TTL 7 TTL 7
8 PORT 8 PORT 8 TTL 8 TTL 8
9 PORT 9 PORT 9 TTL 9 TTL 9
15 Common Common Common Common Common Common
16 D Indicator (com) D Indicator (com) D Indicator (com)
17 E Indicator E Indicator E Indicator
18 F Indicator F Indicator F Indicator
19 G Indicator G Indicator G Indicator
20 H Indicator H Indicator H Indicator
21 K Indicator K Indicator K Indicator
22 L Indicator L Indicator L Indicator
23 M Indicator M Indicator M Indicator
24 N Indicator N Indicator N Indicator
25 P Indicator P Indicator P Indicator
CCT-38S Page 4 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2013 TELEDYNE COAX SWITCHES CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES TRUTH TABLE Normally Open CCT-38SX9C-TD Logic Input RF Path Indicator Switches 1 2 3 4 J1 J2 J3 J4 J5 J6 J7 J8 J9 E F G H K L M N O
0000 On Off Off Off Off Off Off Off Off C 00000000
1000 O f f On Off Off Off Off Off Off Off 0 C 0000000
0100 O f f O f f On Off Off Off Off Off Off 0 0 C 000000
1 1 0 0 Off Off Off On Off Off Off Off Off 0 0 0 C 00000 0 0 1 0 Off Off Off Off On Off Off Off Off 0 0 0 0 C 0000 1 0 1 0 Off Off Off Off Off On O f f O f f O f f 00000 C 000 0 1 1 0 Off Off Off Off Off Off On O f f O f f 000000 C 00 1 1 1 0 Off Off Off Off Off Off Off On O f f 0000000 C 0 0 0 0 1 Off Off Off Off Off Off Off Off On 00000000 C 1 0 0 1 O f f O f f O f f O f f O f f O f f O f f O f f O f f 000000000 SP9T TRUTH TABLE Normally Open CCT-38SX9C-T Logic Input RF Path Indicator Switches
123456789 J 1 J 2 J 3 J 4 J 5 J 6 J 7 J 8 J 9 E F G H K L M N O
On Off Off Off Off Off Off Off Off C 00000000
010000000 O f f On Off Off Off Off Off Off Off 0 C 0000000
001000000 O f f O f f On Off Off Off Off Off Off 0 0 C 000000
000100000 O f f O f f O f f On Off Off Off Off Off 0 0 0 C 00000
000010000 O f f O f f O f f O f f On O f f O f f O f fO f f 0000 C 0000
0 0 0 0 0 1 0 0 0 Off Off Off Off Off On O f f O f fO f f 00000 C 000 0 0 0 0 0 0 1 0 0 Off Off Off Off Off Off On O f fO f f 000000 C 00 0 0 0 0 0 0 0 1 0 Off Off Off Off Off Off Off On O f f 000 0000 C 0 0 0 0 0 0 0 0 0 1 Off Off Off Off Off Off Off Off On 00000000 C
© 2013 TELEDYNE RELAYS (800) 284-7007 • www.teledynecoax.com CCT-38S Page 5 CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES CONNECTOR PINOUT FOR NORMALLY OPEN SP10T MULTI-THROW SWITCHES EXAMPLE CCT-38S100-S CCT-38S10C-S CCT-38S100-TS CCT-38S10C-TS CCT-38S100-TDS CCT-38S10C-TDS INDICATOR Y ES YES YES TTL Y ES YES DECODERS & TTL YES YES PIN NO. 15-PIN 26-PIN 15-PIN 26-PIN 15-PIN 26-PIN
10 PORT 10 PORT 10 TTL 10 TTL 10
13 Vsw Vsw Vsw Vsw
26 T Indicator T Indicator T Indicator
CCT-38S Page 6 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2013 TELEDYNE COAX SWITCHES CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES TRUTH TABLE Normally Open CCT-38SX0C-TD Logic Input RF Path Indicator Switches
1234 J 1 J 2 J 3 J 4 J 5 J 6 J 7 J 8 J 9 J 1 0 E F G H K L M N O P
0000 On Off Off Off Off Off Off Off Off Off C 000000000
1000 O f f On Off Off Off Off Off Off Off Off 0 C 00000000
0100 O f f O f f On Off Off Off Off Off Off Off 0 0 C 0000000
1100 O f f O f f O f f On Off Off Off Off Off Off 0 0 0 C 000000
0010 O f f O f f O f f O f f On Off Off Off Off Off 0 0 0 0 C 00000
1 0 1 0 Off Off Off Off Off On O f f O f f O f fO f f 00000 C 0000 0 1 1 0 Off Off Off Off Off Off On O f f O f fO f f 000000 C 000 1 1 1 0 Off Off Off Off Off Off Off On O f fO f f 0000000 C 00 0 0 0 1 Off Off Off Off Off Off Off Off On O f f 00000000 C 0 1 0 0 1 Off Off Off Off Off Off Off Off Off On 000000000 C 0 1 0 1 Off Off Off Off Off Off Off Off Off Off 0 0 0 0 0 0 0 0 0 0 SP10T TRUTH TABLE Normally Open CCT-38SX0C-T Logic Input RF Path Indicator Switches 123456789 1 0 J 1J 2J 3J 4J 5J 6J 7J 8J 9 J 1 0 EF G H KL M N O P 1000000000 On Off Off Off Off Off Off Off Off Off C 000000000
0100000000 O f f On Off Off Off Off Off Off Off Off 0 C 00000000
0010000000 O f f O f f On Off Off Off Off Off Off Off 0 0 C 0000000
0001000000 O f f O f f O f f On Off Off Off Off Off Off 0 0 0 C 000000
0000100000 O f f O f f O f f O f f On Off Off Off Off Off 0 0 0 0 C 00000
0000010000 O f f O f f O f f O f f O f f On O f f O f f O f f O f f 00000 C 0000
0000001000 O f f O f f O f f O f f O f f O f f On O f f O f f O f f 000000 C 000
0000000100 O f f O f f O f f O f f O f f O f f O f f On O f f O f f 000 0000 C 00
0000000010 O f f O f f O f f O f f O f f O f f O f f O f f On O f f 00000000 C 0
0000000001 O f f O f f O f f O f f O f f O f f O f f O f f O f f On 000000000 C
© 2013 TELEDYNE RELAYS (800) 284-7007 • www.teledynecoax.com CCT-38S Page 7 CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES TYPICAL RF PERFORMANCE CURVES -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 02468 1 0 1 2 Isolaion (dB) Frequency (GHz) Insertion Loss (DC-12GHz) 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 02468 1 0 1 2 Frequency (GHz) VSWR (DC-12GHz) VSWR (dB) -140 -120 -100 -80 -60 -40 -20 02468 1 0 1 2 Isolation (dB) Frequency (GHz) Isolation (DC-12Ghz)
CCT-38S Page 8 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2013 TELEDYNE COAX SWITCHES CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES Power Handling vs. Frequency Estimates based on the following reference conditions:
- Ambient temperature of 40°C or less
- Sea level operation
- Load VSWR of 1.20:1 maximum
- No high-power (hot) switching Please contact Teledyne Coax Switches for derating factors when applications do not meet the foregoing reference conditions. TYPICAL POWER PERFORMANCE CURVE 3000Power (W) Frequency GHz 2000 1000 800 600 400 300 200 100 STANDARD SMA SWITCHES
© 2013 TELEDYNE RELAYS (800) 284-7007 • www.teledynecoax.com CCT-38S Page 9 CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES Actuator An actuator is the electromechanical mechanism that transfers the RF contacts from one position to another upon DC command. Arc Suppression Diode A diode is connected in parallel with the coil. This diode limits the “reverse EMF spike” generated when the coil de- energizes to 0.7 volts. The diode cathode is connected to the positive side of the coil and the anode is connected to the negative side. Date Code All switches are marked with either a unique serial number or a date code. Date codes are in accordance with MIL- STD-1285 Paragraph 5.2.5 and consist of four digits. The fi rst two digits de fi ne the year and the last two digits defi ne the week of the year (YYWW). Thus, 1032 identi fi es switches that passed through fi nal inspection during the 32nd week of 2010. Indicator Indicators tell the system which position the switch is in. Other names for indicators are telemetry contacts or tellback circuit. Indicators are usually a set of internally mounted DC contacts linked to the actuator. They can be wired to digital input lines, status lights, or interlocks. Unless otherwise specifi ed, the maximum indicator contact rating is 30 Vdc, 50 mA, or 1.5 Watts into a resistive load. Isolation Isolation is the measure of the power level at the output connector of an unconnected RF channel as referenced to the power at the input connector. It is speci fi ed in dB below the input power level. Multi-Throw Switch A multi-throw switch is a switch with one input and three or more output ports. The CCT-38 can switch a microwave signal to any of 10 outputs from a single common input. Switching Time Switching time is the total interval beginning with the arrival of the leading edge of the command pulse at the switch DC input and ending with the completion of the switch transfer, including contact bounce. It consists of three parts: (1) inductive delay in the coil, (2) transfer time of the physical movement of the contacts, and (3) the bounce time of the RF contacts. TTL Switch Driver Option As a special option, switch drivers can be provided for both failsafe and latching switches, which are compatible with industry-standard low-power Schottky TTL circuits. TD-Option This option includes a decoder. The 3-bit parallel command is decoded to internally select the appropriate position. See the logic tables. The TD-Option increases the Vsw supply current demand by 50mA max at 28Vdc and +20°C. Performance Parameters vs Frequency Generally speaking, the RF performance of coaxial switches is frequency dependent. With increasing frequency, VSWR and insertion loss increase while isolation decreases. All data sheets specify these three parameters as “worst case” at the highest operating frequency. If the switch is to be used over a narrow frequency band, better performance can be achieved. Actuator Current vs Temperature The resistance of the actuator coil varies as a function of temperature. There is an inverse relationship between the operating temperature of the switch and the actuator drive current. For switches operating at 28 VDC, the approximate actuator drive current at temperature, T, can be calculated using the equation: Magnetic Sensitivity An electro-mechanical switch can be sensitive to ferrous materials and external magnetic fi elds. Neighboring ferrous materials should be permitted no closer than 0.5 inches and adjacent external magnetic fi elds should be limited to a fl ux density of less than 5 Gauss. GLOSSARY IA Where: IT = Actuator current at temperature, T IA = Room temperature actuator current – see data sheet T = Temperature of interest in °C IT = Carrier Frequency 1 Carrier Frequency 2 PIM 3rd Order Frequency PIM 5th Order Fre- quency
870 MHz 893 MHz 847 MHz 824 MHz
–96 dBm –115 dBm –139 dBc –158 dBc SPECIAL FEATURE Switching High-Power or Highly Sensitive Signals Ensure the most linear response with the best galvanically matched contact system in the industry. Extremely low passive intermodulation is standard on all of our switches.
CCT-38S Page 10 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2013 TELEDYNE COAX SWITCHES CCT-38S\\072013\\Q3 Series CCT-38S Multi-Throw DC–12 GHz, SP9T & SP10T Normally Open Coaxial Switch COAX SWITCHES NORMALLY OPEN CCT-38S PART NUMBER LIST * X = 1 (28Vdc), 2 (15Vdc), 3 (12Vdc) and 4 (24Vdc) PART NO.P ART NO.P ART NO.