AA105-86
器件描述：GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-3.0 GHz
器件厂商：ALPHA [Alpha Industries]
文件大小：400.38KB，共5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. 9/00A
GaAs IC 4 Bit Digital Attenuator
1 dB LSB Positive Control 0.5–3.0 GHz
Features
a73 Attenuation 1 dB Steps to 15 dB
with High Accuracy
a73 Single Positive Control (+3 to +5 V) for
Each Bit
a73 Low DC Power Consumption
a73 Miniature Low Cost MSOP-10
Plastic Package
MSOP-10
AA105-86
PIN 10
PIN 1
PIN 1
INDICATOR
0.034
(0.86 mm)
± 0.004
(0.10 mm)
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.193
(4.90 mm)
± 0.006
(0.15 mm)
0˚–6˚
8˚–16˚
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.022 (0.55 mm)
± 0.006 (0.15 mm)
0.006 (0.15 mm) MAX.
0.002 (0.05 mm) MIN.
0.0197
(0.500 mm)
BSC
0.009 (0.23 mm)
REF.
0.043
(1.09 mm)
MAX.
Description
The AA105-86 is a 4 bit, single positive control GaAs IC
FET digital attenuator. It requires DC blocking capacitors,
positive supply voltage (V
S
) and four individual positive bit
control voltages (V
1
–V
4
). The AA105-86 is particularly
suited where high attenuation accuracy, low insertion loss
and low intermodulation products are required. Typical
applications include cellular radio, wireless data, and
wireless local loop gain level control circuits.
Parameter
1
Condition Frequency Min. Typ. Max. Unit
Insertion Loss 0.5–1.0 GHz 1.5 1.8 dB
1.0–2.0 GHz 2.1 2.4 dB
2.0–2.5 GHz 2.4 2.7 dB
2.5–3.0 GHz 2.7 3.0 dB
Attenuation Range 15 dB
Attenuation Accuracy
2
0.5–1.0 GHz ± (0.2 + 2% of dB
Attenuation Setting in dB)
1.0–3.0 GHz ± (0.3 + 3% of dB
Attenuation Setting in dB)
VSWR (I/O)
3
0.5–2.5 GHz 1.5:1 2.0:1
2.5–3.0 GHz 1.7:1 2.2:1
Switching Characteristics
4
Rise, Fall (10/90% or 90/10% RF) 180 ns
On, Off (50% CTL to 90/10% RF) 270 ns
Video Feedthru 50 mV
Input Power for 1 dB Compression V
S
= +3 V 0.5–3.0 GHz +20 +24 dBm
V
S
= +5 V 0.5–3.0 GHz +25 +29 dBm
Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm
V
S
= +3 V 0.5–3.0 GHz +43 +49 dBm
V
S
= +5 V 0.5–3.0 GHz +44 +50 dBm
Control Voltages V
Low
= 0 to 0.2 V @ 20 µA Max.
V
High
= +3 V @ 100 µA Max. to +5 V @ 200 µA Max.
V
S
= V
High
± 0.2 V
Electrical Specifications at -40°C to +85°C (0, +5 V)
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Attenuation referenced to insertion loss.
3. Input/output.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Specifications subject to change without notice. 9/00A
GaAs IC 4 Bit Digital Attenuator
1 dB LSB Positive Control 0.5–3.0 GHz
Features
a73 Attenuation 1 dB Steps to 15 dB
with High Accuracy
a73 Single Positive Control (+3 to +5 V) for
Each Bit
a73 Low DC Power Consumption
a73 Miniature Low Cost MSOP-10
Plastic Package
MSOP-10
AA105-86
PIN 10
PIN 1
PIN 1
INDICATOR
0.034
(0.86 mm)
± 0.004
(0.10 mm)
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.193
(4.90 mm)
± 0.006
(0.15 mm)
0˚–6˚
8˚–16˚
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.022 (0.55 mm)
± 0.006 (0.15 mm)
0.006 (0.15 mm) MAX.
0.002 (0.05 mm) MIN.
0.0197
(0.500 mm)
BSC
0.009 (0.23 mm)
REF.
0.043
(1.09 mm)
MAX.
Description
The AA105-86 is a 4 bit, single positive control GaAs IC
FET digital attenuator. It requires DC blocking capacitors,
positive supply voltage (V
S
) and four individual positive bit
control voltages (V
1
–V
4
). The AA105-86 is particularly
suited where high attenuation accuracy, low insertion loss
and low intermodulation products are required. Typical
applications include cellular radio, wireless data, and
wireless local loop gain level control circuits.
Parameter
1
Condition Frequency Min. Typ. Max. Unit
Insertion Loss 0.5–1.0 GHz 1.5 1.8 dB
1.0–2.0 GHz 2.1 2.4 dB
2.0–2.5 GHz 2.4 2.7 dB
2.5–3.0 GHz 2.7 3.0 dB
Attenuation Range 15 dB
Attenuation Accuracy
2
0.5–1.0 GHz ± (0.2 + 2% of dB
Attenuation Setting in dB)
1.0–3.0 GHz ± (0.3 + 3% of dB
Attenuation Setting in dB)
VSWR (I/O)
3
0.5–2.5 GHz 1.5:1 2.0:1
2.5–3.0 GHz 1.7:1 2.2:1
Switching Characteristics
4
Rise, Fall (10/90% or 90/10% RF) 180 ns
On, Off (50% CTL to 90/10% RF) 270 ns
Video Feedthru 50 mV
Input Power for 1 dB Compression V
S
= +3 V 0.5–3.0 GHz +20 +24 dBm
V
S
= +5 V 0.5–3.0 GHz +25 +29 dBm
Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm
V
S
= +3 V 0.5–3.0 GHz +43 +49 dBm
V
S
= +5 V 0.5–3.0 GHz +44 +50 dBm
Control Voltages V
Low
= 0 to 0.2 V @ 20 µA Max.
V
High
= +3 V @ 100 µA Max. to +5 V @ 200 µA Max.
V
S
= V
High
± 0.2 V
Electrical Specifications at -40°C to +85°C (0, +5 V)
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Attenuation referenced to insertion loss.
3. Input/output.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.