Preliminary
GaAs IC 6 Bit Digital Attenuator with Driver
0.5 dB LSB Positive Control DC–1 GHz
AA113-310
Features
I
Attenuation 0.5 dB Steps to 31.5 dB With
High Accuracy
I
Single Positive Control (+5 V) for Each Bit
I
Low DC Power Consumption
I
CMOS Integrated Silicon Driver
I
Designed for Use at IF Frequencies
MLF 5 x 5 (-310)
0.197 (5.00 mm) BSC
0.039 (1.00 mm) MAX.
PIN 1
0.187
0.001
INDICATOR
(4.75 mm) BSC
(0.025 mm)
32
1
0.187
(4.75 mm)
BSC
0.197
(5.00 mm)
BSC
12˚ MAX.
0.122 (3.10 mm)
± 0.006 (0.15 mm)
32
1
SEATING
PLANE
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.
0.122 (3.10 mm)
± 0.006 (0.15 mm)
0.138
(3.50 mm) REF.
0.019 (0.50 mm) BSC
0.138 (3.50 mm) REF.
Electrical Specifications at 25°C (0, +5 V)
Parameter
1
Insertion Loss
2
Attenuation Range
Attenuation
Accuracy
3
DC–0.5 GHz
DC–1.0 GHz
VSWR
(I/O)
4
DC–1.0 GHz
Frequency
DC–0.5 GHz
DC–1.0 GHz
Min.
Typ.
1.5
1.8
31.5
± (0.2 + 2% of
Attenuation Setting in dB)
± (0.25 + 3% of
Attenuation Setting in dB)
1.4:1
1.6:1
Max.
1.8
2.2
Unit
dB
dB
dB
dB
dB
Operating Characteristics at 25°C (0, +5 V)
Parameter
Switching Characteristics
5
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
V
CC
= +5 V
For Two-tone Input Power +5 dBm
V
CC
= +5 V
V
CC
= 5 V @ 700 µA Typ.
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.
4. Input/output.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Frequency
Min.
Typ.
30
50
50
Max.
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
Input Power for 1 dB Compression
Intermodulation Intercept Point (IP3)
Supply Voltage
Control Voltages
0.5–1.0 GHz
0.05 GHz
0.5–1.0 GHz
0.05 GHz
+29
+22
+48
+36
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.
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
1
ALPHA [ ALPHA INDUSTRIES ]
