MACOM AT20-0107 Digital attenuator 31.5db, 6-bit, ttl driver, dc-2.0 ghz Datasheet

RoHS
Compliant
Digital Attenuator
31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz
Features
AT20-0107
V5
Functional Schematic
1
• Attenuation: 0.5 dB Steps to 31.5 dB
• Temperature Stability: ±0.18 dB from –40ºC to +85ºC
•
•
•
•
•
•
•
Typ.
Low DC Power Consumption
Surface Mount Package
Integral TTL Driver
High Intercept Point
Low Cost/High Performance
Lead-Free CR-13 Package
260°C Reflow Compatible
Description
M/A-COM's AT20-0107 is a GaAs FET 6-bit digital
attenuator with a 0.5 dB minimum step size and a
31.5 dB total attenuation. This attenuator and integral TTL driver is in a ceramic 24-lead surface mount
package. The AT20-0107 is ideally suited for use
where accuracy, fast speed, 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. Available with enhanced
performance as fully hermetic version. Environmentally screenable as P/N AT-107-PIN.
Pin Configuration
Pin No.
Function
Pin No.
Function
1
GND
13
RF2
2
GND
14
GND
3
GND
15
GND
4
C16
16
GND
5
C8
17
GND
6
Vee
18
GND
7
Vcc
19
GND
8
C4
20
GND
Ordering Information
Part Number
Package
9
C2
21
GND
AT20-0107-PIN
Bulk Packaging
10
C1
22
GND
AT20-0107-TR
1000 piece reel
11
C0.5
23
GND
AT20-0107-TB
Sample Test Board
12
GND
24
RF1
Note: Reference Application Note M513 for reel size
information.
Note: Die quantity varies.
The metal bottom of the case must be connected to RF and DC
ground.
* 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
31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz
AT20-0107
V5
Electrical Specifications: TA = +25°C2
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
—
DC - 2.0 GHz
dB
—
3.2
3.8
Any Bit or Combination of
Bits
DC - 2.0 GHz
dB
—
—
+(.3 +7% of atten.)
-(.2 +1% of atten.)
VSWR
Full Range
DC - 2.0 GHz
Ratio
—
—
1.8:1
Trise, Tfall
Ton, Toff
Transients
10% to 90%
50% Control to 90%/10%
RF
In-band (peak to peak)
—
—
—
nS
nS
mV
—
—
—
50
150
50
—
—
—
1 dB Compression 5
Input Power
Input Power
50 MHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+21
+29
—
—
Input IP3 5
Two Tone Inputs up to
+5 dBm
50 MHz
0.5 - 2.0 GHz
dB
dB
—
—
+35
+48
—
—
Input IP2 5
Two Tone Inputs up to
+5 dBm
50 MHz
0.5 - 2.0 GHz
dB
dB
—
—
+75
+79
—
—
Vcc
-Vee
—
—
—
—
V
V
4.5
-8.0
5.0
—
5.5
-5.0
Icc
Vcc = 4.5 to 5.5V
—
mA
—
—
6.0
-Iee
-Vee = -5.0 to -8.0V
—
mA
—
—
1.0
Insertion Loss
1,3,4
Attenuation Accuracy
1.
2.
3.
4.
5.
Above reference insertion loss.
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.
This attenuator is guaranteed monotonic.
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.
VEE = -5 V for the typical numbers given.
Absolute Maximum Ratings 6,7
Parameter
Max. Input Power
0.05 GHz
0.5 - 2.0 GHz
+Vcc
6.
7.
8.
Recommended PCB Configuration
Absolute Maximum
+27 dBm
+34 dBm
+5.5V
-Vee
-8.5V
Control Voltage8
-0.5V to VCC +0.5V
Operating Temperature
-40°C to +125°C
Storage Temperature
-65°C to +150°C
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.
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
31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz
AT20-0107
V5
Truth Table (Digital Attenuator)
Handling Procedures
Please observe the following precautions to avoid
damage:
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
C16
C8
C4
C2
C1
C0.5
Attenuation
0
0
0
0
0
0
Loss, Reference
0
0
0
0
0
1
0.5 dB
0
0
0
0
1
0
1.0 dB
0
0
0
1
0
0
2.0 dB
0
0
1
0
0
0
4.0 dB
0
1
0
0
0
0
8.0 dB
1
0
0
0
0
0
16.0 dB
1
1
1
1
1
1
31.5 dB
0 = TTL Low; 1 = TTL High
Insertion Loss vs. Frequency
Attenuation Accuracy vs. Frequency
+ 8 5 °C
+ 2 5 °C
- 4 0 °C
1 dB
4
2 dB
0 . 5 dB
4 dB
0.6
0.4
Deviation (dB)
Loss (dB)
3
2
1
0.2
0
- 0.2
- 0.4
0
0
0.5
1
1.5
2
- 0.6
0
Frequency (GHz)
0.5
1
1.5
2
4 dB
8 & 16 dB
Frequency (GHz)
RF1 VSWR vs. Frequency
Attenuation Accuracy vs. Frequency
16 dB
8 dB
Loss & 0 . 5 dB
3 1. 5 dB
0.8
Deviation (dB)
0.6
Deviation (dB)
2 dB
1 dB
2
0.4
0.2
0
- 0.2
- 0.4
1.8
1.6
1.4
1.2
- 0.6
1
- 0.8
0
0
0.5
1
1.5
0.5
1
1.5
2
2
Frequency (GHz)
Frequency (GHz)
3
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
31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz
AT20-0107
V5
Typical Performance Curves
Lead-Free, CR-13 Ceramic Package†
RF2 VSWR vs. Frequency
1 & 2 dB
4 dB
8 dB
Loss & 0 . 5 dB
16 dB
Dev iatio n (dB )
2
1.8
1.6
1.4
1.2
1
0
0.5
1
1.5
2
Frequency (GHz)
†
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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