0.100 TYP (2.54)
0.200 TYP (5.08)
0.250 MIN
(6.35) 0.187 MAX
(4.75)
0.018
0.005
PIN DIA
(0.46
0.13)
0.60 DIA
(15.2 )
0.200 TYP (5.08)
P7
P4
P10
0.400 (10.16)
TYP
P1
Bottom of Case is AC Ground
Dimensions in ( ) are in mm.
Unless Otherwise Noted: .xxx = 0.010 (.xx = 0.25)
.xx = 0.02 (.x = 0.5)
1 Bit, 10 dB, GaAs Digital Atten uator
0.02 - 2 GHz
AT-358
T0-8-2
Functional Sc hematic (T op Vie w)
C1 State
0 Reference Loss
1 Attenuation
T ruth T a b l e
Guaranteed Specifications
1
(From -55C to +85C)
Frequency Range 0.02 2.0 GHz
Nominal Attenuation
2
10 dB
Attenuation Accuracy 0.02 2.0 GHz +/-0.5 dB Max
0.02 1.0 GHz +/-0.3 dB Max
0.02 0.5 GHz +/-0.2 dB Max
0.02 0.2 GHz +/-0.2 dB Max
VSWR 0.02 2.0 GHz 1.9:1 Max
0.02 1.0 GHz 1.3:1 Max
0.02 0.5 GHz 1.3:1 Max
0.02 0.2 GHz 1.3:1 Max
Reference Insertion Loss
0.02 2.0 GHz 2.7 dB Max
0.02 1.0 GHz 1.0 dB Max
0.02 0.5 GHz 0.9 dB Max
0.02 0.2 GHz 0.8 dB Max
Operating Characteristics
Impedance 50 Ohms Nominal
Switching Characteristics
Ton, Toff (50% CTL to 90%/10% RF) 100 ns Typ
Trise, Tfall (10%/90% or 90%/10% RF) 40 ns Typ
Switching Transients (Unfiltered) 50 mV Typ
Input Power for 1 dB Compression
0.5 2.0 GHz +24 dBm Typ
0.05 GHz +18 dBm Typ
Intermodulation Intercept Point (for two-tone input power up to +5 dBm)
Intercept Points IP2 IP3
0.5 2.0 GHz +58 +38 dBm Typ
0.05 GHz +54 +35 dBm Typ
Bias Power +5 VDC @ 1 mA Max
Control Voltages
Vin Low (0) 0.0 to 1.5V @ 1A Max
Vin High (1) 3.5 to 5.0V @ 1A Max
1. All specifications apply with 50 ohm impedance connected to all RF ports, with +5
VDC bias voltage.
2. Above reference insertion loss.
3. Contact the factoy for standard or custom screening requirements.
Or dering Inf ormation
Model No. Package
AT-358 PIN TO-8-2
Features
CMOS Control Interface
Low Power Consumption
GND
GND
+5V
GND
GND
RF IN
RF OUT
10 dB
GND
GND
GND
GND
CI
Specifications Subject to Change Without Notice. V2.01
Parameter Absolute Maximum
1
Max. Input Power
0.05 GHz +27 dBm
0.5 2.0 GHz +32 dBm
Bias Voltage 0.5 to +7 V
Control Voltage -0.5 to V bias + 0.5 V
Operating Temperature 55C to +125C
Storage Temperature 65C to +150C
Typical Performance
1. Operation of this device above any one of these parameters may
cause permanent damage.
Absolute Maximum Ratings
0
-0.5
-1.0
-1.5
-2.0
-2.5
FREQUENCY (GHz)
LOSS (dB)
REFERENCE INSERTION LOSS vs FREQUENCY
0.5
0.02 1.0 1.5 2.0
FREQUENCY (GHz)
DEVIATION FROM
NOMINAL ATTENUATION (dB)
ATTENUATION FLATNESS vs FREQUENCY
0.02 0.5 1.0 1.5 2.0
-0.5
-0.25
0
+0.25
+0.5
ATTENUATION STATE
LOSS STATE
1.4
1.2
VSWR
VSWR vs FREQUENCY
2.0
1.8
1.6
1.0
FREQUENCY (GHz)
0.5
0.02 1.0 1.5 2.0
Specifications Subject to Change Without Notice. V2.01
1-Bit, 10 dB, GaAs Digital Attenuator AT-358
PDF 
ZIP