Digital Attenuator, 15 dB, 4-Bit,
TTL Driver, DC - 3 GHz
AT
-
213
CR-11
V 3.00
Features
n
Attenuation: 1 dB steps to 15 dB
n
Temperature Stability: 0.18 dB from 55C to +85C
Typical
n
Low DC Power Consumption
n
Hermetic Surface Mount Package
n
Integral TTL Driver
n
50 Ohms Nominal Impedance
Description
M/A-COM's AT-213 is a 4-bit, 1 dB step digital attenuator
in a hermetically sealed ceramic 16-lead surface mount
package. The AT-213 is ideally suited for use where high
accuracy, fast switching, very low power consumption and
low intermodulation products are required. Typical
applications include dynamic range setting in a precision
receiver circuits and other gain/leveling control circuits.
Environmental screening is available. Contact the factory
for information.
Electrical Specifications: T
A
= -55C to +85C
1
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Reference Insertion Loss
--
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
dB
dB
dB
dB
--
--
--
--
--
--
--
--
1.7
1.9
2.2
2.5
Attenuation Accuracy
2
Any Single Bit
Any Combination of Bits
DC - 2.0 GHz
DC - 3.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
(0.15 dB +3% of atten setting in dB) dB
(0.2 dB +3% of atten setting in dB) dB
Or 0.4 dB, whichever is greater
(0.2 dB +3% of atten setting in dB) dB
(0.2 dB +3% of atten setting in dB) dB
Or 0.4 dB, whichever is greater
VSWR
--
--
Ratio
--
--
1.6:1
Trise, Tfall
10% to 90%
--
ns
--
9
--
Ton, Toff
50% Control to 90/10% RF
--
ns
--
40
--
Transients
In-Band (peak-peak)
--
mV
--
30
--
1 dB Compression
Input Power
Input Power
0.05 GHz
0.5 - 3.0 GHz
dBm
dBm
--
--
+22
+28
--
--
Input IP3
For two-tone Input Power
Up to +5 dBm
0.05 GHz
0.5 - 3.0 GHz
dBm
dBm
--
--
+40
+50
--
--
Input IP2
For two-tone Input Power
Up to +5 dBm
0.05 GHz
0.5 - 3.0 GHz
dBm
dBm
--
--
+45
+68
--
--
Vcc
--
--
V
4.5
5.0
5.5
Vee
--
--
V
-8.0
--
-5.0
1. All specifications apply when operated with bias voltages of +5V for Vcc and 5.0V for Vee.
2. This attenuator is guaranteed monotonic.
Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 2 GHz
AT-213
Specifications subject to change without notice.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
V 3.00
2
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Icc
Vcc = 4.5 to 5.5V
Vctl = 0 to 0.8V, or Vcc 2.1V to Vcc
--
mA
--
--
4.0
Iee
Vee = -5.0 to -8.0V
--
mA
--
--
1.0
Vctl
Vctl
Logic 0 (TTL)
Logic 1 (TTL)
--
--
V
V
0.0
2.0
--
--
0.8
5.0
Input Leakage Current (Low)
0 to 0.8V
--
A
--
--
1.0
Input Leakage Current (High)
2.0 to 5.0V
--
A
--
--
1.0
Electrical Specifications: T
A
= -55C to +85C
Absolute Maximum Ratings
3
3. Operation of this device above any one of these parameters
may cause permanent damage.
4. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
Parameter
Absolute Maximum
Max Input Power
0.5 GHz
0.5 - 3.0 GHz
+27 dBm
+34 dBm
Supply Voltages
Vcc
Vee
+5.5V
-8.5V
Control Voltage
4
-0.5V to Vcc +0.5V
Operating Temperature
-55C to +125C
Storage Temperature
-65C to +150C
Functional Schematic (Top View)
Truth Table
0 = TTL Low 1 = TTL High
C4
C3
C2
C1
Attenuation
0
0
0
0
Reference
0
0
0
1
1 dB
0
0
1
0
2 dB
0
1
0
0
4 dB
1
0
0
0
8 dB
1
1
1
1
15 dB
Control Inputs
RF2
GND
GND
GND
Vee
Vcc
C4
RF1
GND
GND
GND
GND
C1
GND Orientation Mark
C2 PIN 1
8 dB
4 dB
2 dB
1 dB
Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 2 GHz
AT-213
Specifications subject to change without notice.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
V 3.00
Typical Performance Curves
Attenuation Accuracy vs. Frequency
Ref. Insertion Loss vs. Frequency
RF1 VSWR vs. Frequency
3
Ordering Information
Part Number
Package
AT-213 PIN
CR-11
RF2 VSWR vs. Frequency
0
0.5
1
1.5
2
2.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Insertion Loss (dB)
+85C
+25C
-55C
-0.60
-0.40
-0.20
0.00
0.20
0.40
0.60
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Deviation from Nominal Atten (dB)
1 dB
2 dB
4 dB
8 dB
Full Attenuation
1.0
1.1
1.2
1.3
1.4
1.5
1.6
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
VSWR
1 dB
2 dB
4 dB
8 dB
Reference Loss State
1
1.1
1.2
1.3
1.4
1.5
1.6
0.0
0.5
1.0
1.5
2.0
2.5
3
Frequency (GHz)
VSWR
1 dB
2 dB
4 dB
8 dB
Reference Loss State
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