ALPHA AA113-310 Datasheet
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com 1
Specifications subject to change without notice. 4/01A
GaAs IC 6 Bit Digital Attenuator with Driver
0.5 dB LSB Positive Control DC–1 GHz
Features
■ Attenuation 0.5 dB Steps to 31.5 dB With
High Accuracy
■ Single Positive Control (+5 V) for Each Bit
■ Low DC Power Consumption
■ CMOS Integrated Silicon Driver
■ Designed for Use at IF Frequencies
MLF 5 x 5 (-310)
AA113-310
0.001
(0.025 mm)
0.039 (1.00 mm) MAX.
SEATING
PLANE
12˚ MAX.
0.197 (5.00 mm) BSC
0.197
(5.00 mm)
BSC
1
32
0.187
(4.75 mm) BSC
0.187
(4.75 mm)
BSC
PIN 1
INDICATOR
0.122 (3.10 mm)
± 0.006 (0.15 mm)
0.122 (3.10 mm)
± 0.006 (0.15 mm)
32
1
0.138 (3.50 mm) REF.
0.138
(3.50 mm) REF.
0.019 (0.50 mm) BSC
Description
The AA113-310 is a 6 bit, single positive control GaAs IC
FET digital attenuator with driver. It is particularly suited
at IF frequencies where high attenuation accuracy, low
insertion loss and low intermodulation products are
required. Typical applications include base station,
wireless data, broadband and wireless local loop gain
control circuits.
Parameter
1
Frequency Min. Typ. Max. Unit
Insertion Loss
2
DC–0.5 GHz 1.5 1.8 dB
DC–1.0 GHz 1.8 2.2 dB
Attenuation Range 31.5 dB
Attenuation Accuracy
3
DC–0.5 GHz ± (0.2 + 2% of
Attenuation Setting in dB) dB
DC–1.0 GHz ± (0.25 + 3% of
Attenuation Setting in dB) dB
VSWR (I/O)
4
DC–1.0 GHz 1.4:1 1.6:1
Electrical Specifications at 25°C (0, +5 V)
Preliminary
Parameter Condition Frequency Min. Typ. Max. Unit
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF) 30 ns
On, Off (50% CTL to 90/10% RF) 50 ns
Video Feedthru 50 mV
Input Power for 1 dB Compression VCC= +5 V 0.5–1.0 GHz +29 dBm
0.05 GHz +22 dBm
Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm 0.5–1.0 GHz +48 dBm
VCC= +5 V 0.05 GHz +36 dBm
Supply Voltage VCC= 5 V @ 700 µA Typ.
Control Voltages C
TL05
, C
TL1
, C
TL2
, C
TL4
, C
TL8
, C
TL16,Low
= 0 to 0.8 V @ 20 µA Typ.
C
TL05
, C
TL2
, C
TL4
, C
TL8
, C
TL16,High
= 3.5 to 5.0 V @ 20 µA Typ.
Operating Characteristics at 25°C (0, +5 V)
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Attenuation referenced to insertion loss.
4. Input/output.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
GaAs IC 6 Bit Digital Attenuator with Driver 0.5 dB LSB Positive Control DC–1 GHz AA113-310
2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 4/01A
Typical Performance Data (VCC= +5 V)
0 0.5 1.0 1.5 2.0
S
21
(dB)
Frequency (GHz)
Insertion Loss vs. Frequency
-2.50
-2.25
-2.00
-1.75
-1.50
-1.25
-1.00
-0.75
-0.50
0
VSWR
Frequency (GHz)
Input VSWR vs. Frequency
0.5 1.0 1.5 2.0
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Ref. Coeff
Ins. Loss
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
0 0.5 1.0 1.5 2.0
Deviation (dB)
Frequency (GHz)
Attenuation Accuracy vs. Frequency
-0.5
0
0.5
1.0
1.5
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
0 0.5 1.0 1.5 2.0
VSWR
Frequency (GHz)
Output VSWR vs. Frequency
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Ins. Loss
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
Dimensions in inches (mm).
0.122
(3.10 mm)
SQ.
0.020 (0.50 mm)
0.020
(0.50 mm)
0.020 (0.50 mm)
0.020
(0.50 mm)
0.013 (0.33 mm)
Surface Mount Land Pattern
5 x 5 mm MLF 32 Lead
Characteristic Value
RF Input Power 2 W > 500 MHz, 0/6 V
0.5 W > 50 MHz, 0/6 V
Supply Voltage 6 V
Control Voltage
1
-0.2 V, +6 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
Θ
JC
85°C/W
Absolute Maximum Ratings
Note: Exceeding these ratings may cause irreversible damage.
1. Control voltage must not exceed supply voltage.
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