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Part: 2GT-23TT
Category:
RF & Microwaves
-> Attenuators
-> Digital Attenuators
Description: Description = Attenuator, Pin Diode ;; Freq. Range = 0.25-18 GHZ
Company: MCE KDI Integrated Products
Datasheet: Download 2GT-23TT datasheet File size : 155 kB
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Datasheet text preview:
ATTENUATORS, PIN DIODE
0.2518 G H z GENERAL INFORM TION A
KDI/Triangle Pin Diode attenuators continuously change the amplitude of a microwave signal by applying a varying DC current, voltage, or digital signal, depending upon the Model type selected. The basic current controlled models do not have thermal compensation included, the voltage controlled & digital models have linearization and/or temperature compensation options. A matched configuration of diodes keeps the VSWR low through all values of attenuation and frequency. Linearization is provided in some models, which produces an output signal that is linearly proportional to the control voltage. Temperature compensation is also provided in some models, over either the 55 to +85 degree C range, 1040 degree C range, or 0-70 degree C range depending upon the Model type selected. Digitally controlled analog attenuators, Model series "GA", require an TTL binary logic input. Standard units in the GA series have an 8 bit input producing 256 discrete values of attenuation. Optional 1012 bit logic is readily available simply by specifying in the model number with a dash number.
SERIES GT, 1GT, 2GT, GA
Control Input Impedance: Switching Period:
10 K ohms, 20 pf. Standard models can be changed from any value of attenuation to any other value in 10 microsec. Units can be provided with switching speed to 300 nanosec. on request. Speed is related to maximum attenuation required. That is, 32 dB models are faster than 64 dB models. Inser tion Loss will increase by a factor of 1.6 on higher speed models. SMA standard, others on request.
GENERAL SPECIFICATIONS
R.F. Power: To prevent self-biasing, the attenuators should be operated at less than 100 mW CW, and 60 watts peak. Units will not be damaged by application of 1 watt CW or 100 watts peak. 50 OHMS. +10 mA, maximum attenuation. 0 mA, zero attenuation for all current controlled models. ±15 volts at ±50 mA maximum. For all models. 1GT, 2GT, GA (except GT) 010 volts produces 032 dB for 32 dB models and 064 dB for 64 dB models. Other values of control voltage can be provided on request. 10 VDC
A T T E N U A T I O N (dB)
Connectors:
RF Impedance: Current (GT Models):
60
50
40
Power Requirements: Control Voltage (1 GT and 2 GT Models):
30
20
10
0
5
10
Maximum Control Voltage:
BIAS CURRENT (mA) Typical curve of attenuation vs. bias current for GT Models.
BASIC MODEL TYPES
Model No.* GT-( ) 1-GT-( 1-GT-( 1-GT-( 2-GT-( 2-GT-( 2-GT-( GA-( ) GA-( )TT GA-( ) TR ) )TT )TR ) )TT )TR Input Control Current VOLTAGE 10 TO 40 C VOLTAGE-TEMP COMP 55 TO +85 C VOLTAGE-TEMP COMP 0 TO 70 C VOLTAGE- LINEARIZED 10 TO 40 C VOLTAGE-LINEARIZED TEMP COMP 55 TO +85 C VOLTAGE-LINEARIZED TEMP COMP 0 TO 70 C DIGITAL-TTL 10 TO 40 C DIGITAL-TTL- TEMP COMP 55 TO +85 C DIGITAL-TTL-TEMP COMP 0 TO 70 C Accuracy Chart No. A, B A, B C D A, B C D A, B C D Input Control 010MA 010VDC 010VDC 010VDC 010VDC 010VDC 010VDC TTL TTL TTL Input Fixed None + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX + & 15VDC @50 MA MAX
KEY: Inches[Millimeters] .XX ±.03 .XXX ±.010 [.X ±0.8 .XX ±0.25]
60 South Jefferson Road, Whippany, NJ 07981 Tel: 973-887-8100 · Fax: 973-884-0445 email: sales@mcekdi-integrated.com See us on the web @ www.mcekdi-integrated.com
11-5-02
ATTENUATORS, PIN DIODE
0.2518 GHz
SERIES GT, 1GT, 2GT, GA
.25 0 0 0 0 0 0 0 1 .5 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 2 0 1 0 1 0 1 0 1 4 0 0 1 1 0 0 1 1 8 0 1 0 1 1 0 1 1 16 0 0 1 1 0 1 1 1 32 0 0 0 0 1 1 1 1
"GA" MODELS-DIGITAL LOGIC: TTL COMPATIBLE.
RF ATTENUATOR, LINEARIZER and D/A CONVERTER RF
NO. OF BITS = 8 L.S.B. = .25 dB ATTENUATION: 63.75 dB BIT SIZE LOGIC LOGIC LOGIC LOGIC LOGIC LOGIC LOGIC LOGIC = REF. (INS. LOSS) = 10 dB = 20 dB = 30 dB = 40 dB = 50 dB = 60 dB = 63.75 dB
····
LOGIC INPUTS
"GA" MODELS
MODEL TYPE SPECIFICATIONS
Outline Type** (10) (11) (13) (14) (16) (17) (19) (20) (22) (23) (25) (26) (28) (29) (30) (31) (32) (38) (39) (40) (41) (43) (50) (51) Frequency GHz 0.250.5. 0.250.5. 0.51.0 0.51.0 0.52.0 0.52.0 1.02.0 1.02.0 1.04.0 1.04.0 2.04.0 2.04.0 2.08.0 2.08.0 4.08.0 4.08.0 4.012.0 6.018.0 8.012.4 8.012.4 8.018.0 12.018.0 2.018.0 2.018.0 Max Max (1) Atten VSWR IL dB Range dB 1.55 2.35 32 1.55 2.35 64 1.55 1.55 1.75 1.75 1.55 1.55 1.75 1.75 1.55 1.55 1.85 1.85 1.75 1.75 1.95 2.25 25 2.15 2.25 2 2.25 2.55 2.55 2.55 2.85 2.85 2.85 2.85 3.15 3.15 3.15 3.15 3.75 3.75 3.45 3.45 4.05 4.25 3.85 3.35 3.75 3.75 5.05 5.05 32 64 32 64 32 64 32 64 32 64 32 64 32 64 32 64 32 64 32 32 32 64 GT-( ) Models 1 1 2 2 3 3 4 4 5 5 4 4 6 6 6 6 7 7 7 7 7 7 8 8 Outline 1, 2 GT-( ) Models 11 11 12 12 13 13 14 14 15 15 14 14 16 16 16 16 17 17 17 17 17 17 18 18
NOTE: Least Sig. Bit for 32 dB unit is .125 dB. Most Sig. Bit is 16 dB. Outline GA Models 21 21 22 22 23 23 24 24 25 25 24 24 26 26 26 26 26 26 26 26 26 26 26 26
60
A T T E N U A T I O N (dB)
50
40
30
20
10
0
4
8
CONTROL VOLTAGE (V) VOLTAGE VS ATTENUATOR MODEL 1GT.
TEMPERATURE COMPENSATED DIGITALLY CONTROLLED ANALOG PIN DIODE ATTENUATORS SERIES GA-TT/TR
0.5 2.0 0 10 ATTENUATION (dB) .75 3.0 1.0 4.0 1.25 5.0 1.5 6.0 1.75 6.0 2 8.0
00000000
Typical Curves for GA-17-T or GA-29-T
00010100
20
00001010
DIGITAL WORD
30 40
00011110
**Select type by adding to Model No. (1) Subtract 0.5 dB from insertion loss for GT and 1 GT Series
00000101
50
00010011
60
00001111
LEGEND _____ +85°C +25°C -54°C
NOTE: SINGLE OCTIVE MODELS ARE FLATTER
KEY: Inches[Millimeters] .XX ±.03 .XXX ±.010 [.X ±0.8 .XX ±0.25]
An MCE Company
CORPORATION
TRIANGLE
60 South Jefferson Road, Whippany, NJ 07981 Tel: 973-887-8100 · Fax: 973-884-0445 E-Mail: kdisales@aol.com See us on the web @ www.kditriangle.com
10/98
ATTENUATORS, PIN DIODE
0.2518 GHz CHART A ATTENUATION ACCURACY VS FREQUENCY
@ 25°C Temperature SERIES GA, GT, 1GT 2GT
Octave Models (2:1 Frequency) ±0.4 dB to 10 dB ±0.75 dB to 20 dB ±1.0 dB to 30 dB ±1.25 dB to 40 dB ±1.75 dB to 64 dB
[See note (4)]
SERIES GT, 1GT, 2GT, GA
Notes:
1. Harmonic Distortion: Approximately 50 dBc for Pin 0 dBm at a frequency of 1.0 GHz for most units. This value improves by approximately 10 dB per octave as the frequency increases; however, since this value is dependent on bandwidth of the unit, power input, and switching speed required, the factory should be consulted if harmonic content is an important system requirement. 2. Two/Tone Intermodulation Products: Second and third order products approximately 50 dBC for Pin 0 dBm (each signal) at all attenuation settings. 3. If a narrow frequency bandwidth is required, KDI/Triangle can supply a unit that is electrically optimized for that bandwidth. Mechanical dimensions will remain the same as the standard unit, and the price will generally be lower. Specify the frequency range when ordering a narrow bandwidth model, and a special part number will be assigned. 4. Add 1.5 dB to all accuracy numbers for types (50) and (51). Two RF connectors are in line. 5. Attenuation vs. temperature only is ± 0.02 dB/°C typical. (At 64 dB) 6. When ordering, add suffix indicating required temperature compensation range to the model number, i.e. the 1-GT-32-T, compensated over the temperature range 55°C to +85°C, would be ordered as 1-GT-32-TT. If compensation from 0°C to +70°C is required, the model number would be 1-GT32-TR. (See "attenuation accuracy vs frequency and temperature" tables for specifications.) 7. Monotonicity guaranteed for all models.
Greater than Octave Models ±0.5 dB to 10 dB ±1.0 dB to 20 dB ±1.5 dB to 30 dB ±1.75 dB to 40 dB ±3.0 dB to 64 dB
CHART B ATTENUATION ACCURACY VS FREQUENCY AND TEMPERATURE
over the +10°C to +40°C temperature range SERIES GA, GT, 1GT, 2GT Octave Models (2:1 Frequency) ± 0.5 dB to 10 dB ± 1.0 dB to 20 dB ± 1.5 dB to 30 dB ± 1.7 dB to 40 dB ± 2.5 dB to 64 dB [See note (4)] Greater than Octave Models ± 0.75 dB to 10 dB ± 1.25 dB to 20 dB ± 1.75 dB to 30 dB ± 2.0 dB to 40 dB ± 3.5 dB to 64 dB
CHART D ATTENUATION ACCURACY VS FREQUENCY AND TEMPERATURE
over the 0°C to +70°C temperature range SERIES GA-(TR) 1,2-GT-(TR) Octave Models (2:1 Frequency) ±0.6 dB to 10 dB ±1.0 dB to 20 dB ±1.3 dB to 30 dB ±1.7 dB to 40 dB ±2.4 dB to 64 dB Greater than Octave Models ±0.8 dB to 10 dB ±1.5 dB to 20 dB ±1.7 dB to 30 dB ±2.2 dB to 40 dB ±3.5 dB to 64 dB
CHART C ATTENUATION ACCURACY VS FREQUENCY AND TEMPERATURE
over the 55°C to +85°C temperature range SERIES GA-(TT), 1, 2GT(TT) Octave Models (2:1 Frequency) ±0.75 dB to 10 dB ±1.2 dB to 20 dB ±1.5 dB to 30 dB ±2.0 dB to 40 dB ±3.0 dB to 64 dB Greater than Octave Models ±1.0 dB to 10 dB ±1.5 dB to 20 dB ±2.0 dB to 30 dB ±2.5 dB to 40 dB ±4.0 dB to 64 dB
[See note (4)] Attentuation accuracy given above assumes 0.1% regulation of power supply voltages *Add T or R suffix (see temperature information).
TYPICAL CURVE OF ATTENUATION VS. CONTROL VOLTAGE FOR 2GT MODELS
64 60 BEST FIT STRAIGHT LINE 50 1.0 dB 0 1 5 CONTROL VOLTAGE (V) 8 0.5 dB BEST FIT STRAIGHT LINE (dB) 30
40 ATTENUATION
[See note (4)] Attentuation accuracy given above assumes 0.1% regulation of power supply voltages
20
10
0
KEY: Inches[Millimeters] .XX ±.03 .XXX ±.010 [.X ±0.8 .XX ±0.25]
10/98
An MCE Company
CORPORATION
TRIANGLE
60 South Jefferson Road, Whippany, NJ 07981 Tel: 973-887-8100 · Fax: 973-884-0445 E-Mail: kdisales@aol.com See us on the web @ www.kditriangle.com
ATTENUATORS, PIN DIODE
0.2518 GHz SERIES GT (CURRENT INPUT) MECHANICAL OUTLINES
Outline 1 2 3 4 5 6 7 8 A in[mm] B in[mm] C in[mm] D in[mm] E in[mm] .38[9,65] .38[9,65] .44[11,18] .38[9,65] .44[11,18] .44[11,18] .44[11,18] .44[11,18] F in[mm] G in[mm] 5.00[127,0] 3.00[76,2] 4.600[116,84] 2.800[71,12] 5.00[127,0] 2.50[63,5] 4.600[116,84] 2.300[58,42] 3.50[88,9] 2.50[63,5] 1.80[45,7] 1.50[38,1] 3.50[88,9] 2.50[63,5] 1.80[45,7] 1.50[38,1] 3.100[78,74] 2.100[53,3] 1.400[35,56] 1.100[27,94] 1.800[45,7] 3.300[83,82] 1.550[39,37] 2.300[58,42] 1.600[40,64] 1.300[33,02] 1.050[26,67] 3.50[88,9] 1.75[44,45] 3.100[78,74] 0.75[19,1] 0.19[0,48] 0.30[7,6] 0.19[0,48] 0.30[7,6] 0.30[7,6] 0.35[8,9] 0.35[8,9] 0.25[6,4] 0.25[6,4] 0.25[6,4] 0.25[6,4]
G E
SERIES GT, 1GT, 2GT, GA
0.10 [2,5]
0.093[2,36] DIA. THRU 4 MTG. HOLES
RF
BD F TYP.
RF
BIAS GND
SMA FEMALE TYP. GT-50,GT-51 (See Note 4)
0.38[9,65] 0.19[0,48]
0.38 [9,7] TYP.
C A
A-C 2
2.00[50,8] 1.81[45,97]
0.25[6,4] 0.24[6,10]
SERIES 1GT, 2GT (VOLTAGE INPUT) MECHANICAL OUTLINES
Outline A in[mm] B in[mm] C in[mm] D in[mm] E in[mm] F in[mm]
C.V. 0.10 [2,5] 0.125[3,18] DIA THRU 4 MTG. HOLES E TYP.
11 5.00[127,0] 3.00[76,2] 4.600[116,84] 2.800[71,12] 12 5.00[127,0] 2.50[63,5] 4.600[116,84] 2.300[58,42] 13 14 15 16 17 18 3.50[88,9] 2.50[63,5] 1.80[45,7] 1.50[38,1] 3.50[88,9] 2.50[63,5] 1.80[45,7] 1.50[38,1] 3.100[78,74] 2.100[53,3] 1.400[35,56] 1.100[27,94] 1.800[45,7] 3.300[83,82] 1.550[39,37] 2.300[58,42] 1.600[40,64] 1.300[33,02] 1.050[26,67] 3.50[88,9] 1.75[44,45] 3.100[78,74]
0.75[19,1] 0.19[0,48] 0.32[8,12] 0.19[0,48] 0.63[16,0] 0.25[6,4] 0.38[9,65] 0.19[0,48]
RF
+15V -15V GND B D
SMA FEMALE TYP. TYPES 50 & 51 (See Note 4)
0.32[8,12] 0.25[6,4] 0.35[8,9] 0.35[8,9] 0.25[6,4] 0.25[6,4] 0.25[6,4] 0.24[6,1]
F
1.00[25,4]
0.38 [9,7] TYP.
C A
A-C 2
2.00[50,8] 1.81[45,97]
SERIES GA (DIGITAL INPUT) MECHANICAL OUTLINES
Outline A in[mm] B in[mm] C in[mm] D in[mm] E in[mm] H in[mm] G in[mm] F in[mm]
ITT CANNON DA-15P OR EQUIV.
0.125[3,18] DIA. THRU 4 MTG. HOLES E
POWER/LOGIC
21 5.00[127,0] 3.00[76,2] 4.600[116,84] 2.750[69,85] 0.75[19,1] 0.19[4,83] 0.75[19,1] 0.13[3,30]
PIN 9
PIN 1 SMA FEMALE TYP.
22 5.00[127,0] 2.50[63,5] 4.600[116,84] 2.250[57,15] 0.32[8,12] 0.19[4,83] 0.32[8,12] 0.13[3,30] 23 3.00[76,2] 3.50[88,9] 3.100[78,74] 2.750[69,85] 0.38[9,65] 0.25[6,4] 0.35[8,9] 0.13[3,30] 24 3.50[88,9] 1.75[44,45] 3.100[78,74] 1.550[39,37] 0.40[10,2] 0.19[4,83] 0.35[8,9] 0.10[2,5] 25 2.50[63,5] 2.50[63,5] 26 2.50[63,5] 2.50[63,5] 2.100[53,3] 2.100[53,3] 2.250[57,15] 0.32[8,12] 0.25[6,4] 0.32[8,12] 0.13[3,30] 1.750[44,45] 0.50[12,7] 0.25[6,4] 0.50[12,7] 0.13[3,30]
F RF
B
D
G
H 1.00 [2,5]
0.38 [9,7] TYP.
C A
0.20 [5,1]
KEY: Inches[Millimeters] .XX ±.03 .XXX ±.010 [.X ±0.8 .XX ±0.25]
An MCE Company
CORPORATION
TRIANGLE
60 South Jefferson Road, Whippany, NJ 07981 Tel: 973-887-8100 · Fax: 973-884-0445 E-Mail: kdisales@aol.com See us on the web @ www.kditriangle.com
10/98
Others parts begin by 2g
2G-1
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