MACOM AT-283-PIN Digital attenuator, 15.5db,5-bit,ttl driver, dc-2.0 ghz Datasheet

RoHS
Compliant
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz
Features
AT-283-PIN
V6
Functional Schematic
• Attenuation: 0.5 dB Steps to 15.5 dB
• Temperature Stability: ± 0.18 dB from –55°C
to +85°C Typical
• Low DC Power Consumption
• Hermetic Surface Mount Package
• Integral TTL Driver
• 50 Ω Nominal Impedance
• Lead-Free CR-12 Package
• 260°C Reflow Compatible
Description
M/A-COM’s AT-283-PIN is a GaAs FET 5-bit digital
attenuator with a 0.5 dB minimum step size and 15.5
dB total attenuation. This attenuator and integral
TTL driver is in a hermetically sealed ceramic 16
lead surface mount package. The AT-283-PIN is
ideally suited for use where accuracy, fast switching,
very low power consumption and low intermodulation products are required. Typical applications include dynamic range setting in precision receiver
circuits and other gain/leveling control circuits. Environmental screening is available. Contact the factory for information.
Pin Configuration
Pin No.
Function
Pin No.
Function
1
RF1
9
C5
2
GND
10
+5V
3
GND
11
-5V
4
GND
12
C4
5
GND
13
C3
6
GND
14
C2
7
GND
15
C1
8
RF2
16
GND
Ordering Information
Part Number
Package
AT-283-PIN
Bulk Packaging
MAAD-007229-0001TR
1000 piece reel
MAAD-007229-0001TB
Sample Test Board
The metal bottom of the case must be connected to RF and DC
ground.
Note: Reference Application Note M513 for reel size
information.
Note: Die quantity varies.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
RoHS
Compliant
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz
AT-283-PIN
V6
Electrical Specifications: TA = 25°C1
Parameter
Test Conditions
Units
Min
Typ
Max
Reference
Insertion Loss
DC-0.5 GHz
DC-1.0 GHz
DC-2.0 GHz
dB
dB
dB
—
—
—
—
—
—
2.2
2.5
2.9
Attenuation Accuracy 2
2.
3.
DC-2.0 GHz
DC-2.0 GHz
± (0.25 +3% of attenuation setting in dB) dB
± (0.25 +3% of attenuation setting in dB) dB
or ± 0.4 dB, whichever is greater
VSWR
DC-1.0 GHz
DC-2.0 GHz
—
—
—
—
—
—
1.6:1
1.7:1
Trise, Tfall
Ton, Toff
Transients
10% to 90%
50% Control to 90/10% RF
In-band (peak—peak)
nS
nS
mV
—
—
—
10
27
22
—
—
—
dBm
dBm
—
—
+20
+28
—
—
1 dB Compression 3
1.
Any Single Bit
Any Combination of Bits
Input Power
Input Power
0.05 GHz
0.5-2.0 GHz
Input IP3 3
For two-tone input power
up to +5 dBm
0.05 GHz
0.5-2.0 GHz
dBm
dBm
—
—
+40
+47
—
—
Input IP2 3
For two-tone input power
up to +5 dBm
0.05 GHz
0.5-2.0 GHz
dBm
dBm
—
—
+53
+68
—
—
VCC
VEE
—
—
V
V
4.5
-8.0
5.0
—
5.5
-5.0
ICC
VCC = 4.5 to 5.5V
Vctl = 0 to 0.8V, or VCC - 2.1V to VCC
mA
—
—
5.0
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)
Input Leakage Current (High)
0 to 0.8V
2.0 to 5.0V
µA
µA
—
—
—
—
1.0
1.0
All specifications apply when operated with bias voltages of +5.0V for VCC and –5.0V to -8.0V for VEE, and 50 Ω impedance at all ports
unless otherwise specified.
This attenuator is guaranteed monotonic.
VEE = -5.0V for the typical numbers given.
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
RoHS
Compliant
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz
Recommended PCB Configuration
Absolute Maximum Ratings 4,5
Parameter
Absolute Maximum
Maximum Input Power
0.05 GHz
0.5-2.0 GHz
+27 dBm
+34 dBm
Supply Voltages
VCC
VEE
+5.5V
-8.5V
Control Voltage6
-0.5V to VCC + 0.5V
Operating Temperature
-55°C to +125°C
Storage Temperature
-65°C to +150°C
4.
AT-283-PIN
V6
Exceeding any one or combination of these limits may cause
permanent damage to this device.
M/A-COM does not recommend sustained operation near
these survivability limits.
Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
5.
6.
Handling Procedures
Please observe the following precautions to avoid
damage:
Truth Table (Digital Attenuator)
Control Inputs
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive
to electrostatic discharge (ESD) and can be
damaged by static electricity. Proper ESD control
techniques should be used when handling these
devices.
Typical Performance Curves
Reference Insertion Loss vs. Frequency @ Temperature
C1
C2
C3
C4
C5
Attenuation
0
0
0
0
0
Reference
1
0
0
0
0
0.5 dB
0
1
0
0
0
1 dB
0
0
1
0
0
2 dB
0
0
0
1
0
4 dB
0
0
0
0
1
8 dB
1
1
1
1
1
15.5 dB
0 = TTL Low; 1 = TTL High
Attenuation Accuracy vs. Frequency 0.5, 1, 2 dB Bits
+ 2 5 °C
- 5 5 °C
Deviation from Nom. Atten. (dB)
+ 8 5 °C
Insertion Loss (dB)
5.0
4.0
3.0
2.0
1.0
0.5
0.3
0.0
- 0.3
- 0.5
0
0.0
0
3
500
1000
1500
2000
500
1000
1500
2000
Frequency (MHz)
Frequency (MHz)
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
RoHS
Compliant
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz
AT-283-PIN
V6
Typical Performance Curves
Attenuation Accuracy vs. Frequency 4, 8 dB Bits and
Full Attenuation
VSWR vs. Frequency Reference Loss, 0.5, 1, 2 dB Bits
Deviation from Nom. Atten. (dB)
Full Atte n.
2.0
1.0
1.8
VSWR
0.5
1.6
1.4
0.0
1.2
1.0
- 0.5
0
500
1000
1500
0
2000
500
1000
1500
2000
Frequency (MHz)
Frequency (MHz)
VSWR vs. Frequency 4, 8 dB Bits and Full Attenuation
Lead-Free, CR-12 Ceramic Package†
2.0
VSW R
1.8
1.6
1.4
1.2
1.0
0
500
1000
1500
2000
Frequency (MHz)
†
Reference Application Note M538 for lead-free solder reflow
recommendations.
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
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