AA109-310
器件描述：GaAs IC 5 Bit Digital Attenuator With Serial-to-Parallel Driver 0.5-2.5 GHz
器件厂商：ALPHA [Alpha Industries]
文件大小：77.18KB，共3页
Sponsor by e络盟器件资料摘要：
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com 1
Specifications subject to change without notice. 3/01A
GaAs IC 5 Bit Digital Attenuator With
Serial-to-Parallel Driver 0.5–2.5 GHz
Features
a73 Positive Voltage Operation (+5 V)
a73 MLF 5 x 5 mm Leadless Package
a73 Integrated Silicon Serial-to-Parallel Driver
a73 Attenuation 1 dB Steps to 31 dB
MLF 5 x 5 (-310)
AA109-310
Description
The AA109-310 is a GaAs FET IC 5 bit digital attenuator
with a serial-to-parallel driver packaged in a 32 leadless
exposed pad plastic package. It is particularly suited where
high attenuation accuracy, low insertion loss and low
intermodulation products are required.Typical applications
include base station, wireless and wireless local loop gain
control circuits.
Parameter
1
Condition Frequency Min. Typ. Max. Unit
Insertion Loss
2
0.5–1.0 GHz 2.0 2.4 dB
1.0–2.0 GHz 2.7 3.1 dB
2.0–2.5 GHz 3.1 3.6 dB
Attenuation Range
3, 4
15.5 dB
Attenuation Accuracy
3, 4
0.5–1.0 GHz ± (0.2 + 3% of
Attenuation Setting in dB) dB
1.0–2.0 GHz ± (0.3 + 5% of
Attenuation Setting in dB) dB
2.0–2.5 GHz ± (0.3 + 6% of
Attenuation Setting in dB) dB
VSWR (I/O) 0.5–2.5 GHz 1.5:1 2.2:1
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF) 100 µs
On, Off (50% CTL to 90/10% RF) 300 µs
Video Feedthru 70 mV
Input Power for 1 dB Compression V
S
= +3 V 0.9–2.5 GHz +21 dBm
V
S
= +5 V 0.9–2.5 GHz +27 dBm
Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm
V
S
= +3 V 0.9–2.5 GHz +41 dBm
V
S
= +5 V 0.9–2.5 GHz +45 dBm
Electrical Specifications at 25°C (V
CC
= +5 V)
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
Preliminary
Parameter Symbol Min. Typ. Max. Unit
Input Voltage High V
IH
(1) 3.5 5.0 V
Input Voltage Low V
IL
(0) 0 0.5 V
Input Leakage Current I
L
±0.5 µA
Quiescent Current I
CC
500 µA
Supply Voltages V
CC
5.0 V
DC Electrical 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 value referenced above insertion loss.
4. Exposed pad must be connected to RF ground to obtain specified attenuation.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Specifications subject to change without notice. 3/01A
GaAs IC 5 Bit Digital Attenuator With
Serial-to-Parallel Driver 0.5–2.5 GHz
Features
a73 Positive Voltage Operation (+5 V)
a73 MLF 5 x 5 mm Leadless Package
a73 Integrated Silicon Serial-to-Parallel Driver
a73 Attenuation 1 dB Steps to 31 dB
MLF 5 x 5 (-310)
AA109-310
Description
The AA109-310 is a GaAs FET IC 5 bit digital attenuator
with a serial-to-parallel driver packaged in a 32 leadless
exposed pad plastic package. It is particularly suited where
high attenuation accuracy, low insertion loss and low
intermodulation products are required.Typical applications
include base station, wireless and wireless local loop gain
control circuits.
Parameter
1
Condition Frequency Min. Typ. Max. Unit
Insertion Loss
2
0.5–1.0 GHz 2.0 2.4 dB
1.0–2.0 GHz 2.7 3.1 dB
2.0–2.5 GHz 3.1 3.6 dB
Attenuation Range
3, 4
15.5 dB
Attenuation Accuracy
3, 4
0.5–1.0 GHz ± (0.2 + 3% of
Attenuation Setting in dB) dB
1.0–2.0 GHz ± (0.3 + 5% of
Attenuation Setting in dB) dB
2.0–2.5 GHz ± (0.3 + 6% of
Attenuation Setting in dB) dB
VSWR (I/O) 0.5–2.5 GHz 1.5:1 2.2:1
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF) 100 µs
On, Off (50% CTL to 90/10% RF) 300 µs
Video Feedthru 70 mV
Input Power for 1 dB Compression V
S
= +3 V 0.9–2.5 GHz +21 dBm
V
S
= +5 V 0.9–2.5 GHz +27 dBm
Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm
V
S
= +3 V 0.9–2.5 GHz +41 dBm
V
S
= +5 V 0.9–2.5 GHz +45 dBm
Electrical Specifications at 25°C (V
CC
= +5 V)
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
Preliminary
Parameter Symbol Min. Typ. Max. Unit
Input Voltage High V
IH
(1) 3.5 5.0 V
Input Voltage Low V
IL
(0) 0 0.5 V
Input Leakage Current I
L
±0.5 µA
Quiescent Current I
CC
500 µA
Supply Voltages V
CC
5.0 V
DC Electrical 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 value referenced above insertion loss.
4. Exposed pad must be connected to RF ground to obtain specified attenuation.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.