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AT20-0107_15 Datasheet, PDF (2/4 Pages) M/A-COM Technology Solutions, Inc. – Digital Attenuator
AT20-0107
Digital Attenuator
31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz
Electrical Specifications: TA = +25°C2
Rev. V7
Parameter
Insertion Loss
Attenuation Accuracy1,3,4
VSWR
Trise, Tfall
Ton, Toff
Transients
1 dB Compression 5
Input IP3 5
Input IP2 5
Vcc
-Vee
Icc
-Iee
Test Conditions
—
Any Bit or Combination of
Bits
Full Range
10% to 90%
50% Control to 90%/10%
RF
In-band (peak to peak)
Input Power
Input Power
Two Tone Inputs up to
+5 dBm
Two Tone Inputs up to
+5 dBm
—
—
Vcc = 4.5 to 5.5V
-Vee = -5.0 to -8.0V
Frequency
DC - 2.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
—
—
—
50 MHz
0.5 - 2.0 GHz
50 MHz
0.5 - 2.0 GHz
50 MHz
0.5 - 2.0 GHz
—
—
—
—
Units
dB
dB
Ratio
ns
ns
mV
dBm
dBm
dBm
dBm
dBm
dBm
V
V
mA
mA
Min
—
—
—
—
—
—
—
—
—
—
—
—
4.5
-8.0
—
—
Typ
3.2
—
—
50
150
50
Max
3.8
+(.3 +7% of atten.)
-(.2 +1% of atten.)
1.8:1
—
—
—
+21
—
+29
—
+35
—
+48
—
+45
—
+79
—
5.0
5.5
—
-5.0
—
6.0
—
1.0
1. Above reference insertion loss.
2. All specifications apply when operated with bias voltages of +5V for VCC and –5.0 V to –8.0 V for VEE and 50Ω impedance at all ports
unless otherwise stated.
3. This attenuator is guaranteed monotonic.
4. For the attenuator to meet the guaranteed specifications, it is necessary to have a DC return on either RF1 or RF2. The DC return can be
either a 10KΩ resistor, or an RF choke.
5. VEE = -5 V for the typical numbers given.
Absolute Maximum Ratings 6,7
Recommended PCB Configuration
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
0.5 - 2.0 GHz
+27 dBm
+34 dBm
VCC
VEE
VCC - VEE
Vin8
Operating Temperature
-0.5V ≤ VCC ≤ +7.0V
-8.5V ≤ VEE ≤ +0.5V
-0.5V ≤ VCC - VEE ≤ 14.5V
-0.5V ≤ Vin ≤ VCC + 0.5V
-40°C to +125°C
Storage Temperature
-65°C to +150°C
6. Exceeding any one or combination of these limits may cause
permanent damage to this device.
7. M/A-COM does not recommend sustained operation near
these survivability limits.
8. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
2
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and product information.
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.