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參數資料
| 型號： | AA110-85 |
| 元件分類： | 衰減器 |
| 英文描述： | 0 MHz - 2000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 2.6 dB INSERTION LOSS-MAX |
| 封裝： | SSOP-20 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 566K |
| 代理商： | AA110-85 |
Alpha Industries, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@alphaind.com www.alphaind.com
1
Specifications subject to change without notice. 2/02A
GaAs IC 5 Bit Digital Attenuator with Driver
1 dB LSB Positive Control DC–2 GHz
Features
■ Attenuation 1 dB Steps to 31 dB With
High Accuracy
■ Single Positive Control (+3 V or +5 V)
for Each Bit
■ Low DC Power Consumption
■ CMOS Integrated Silicon Driver
■ Designed for Use at IF Frequencies at
Input Power Levels > -10 dBm
SSOP-20
AA110-85
0.012
(0.30 mm)
REF.
0.0256
(0.65 mm)
BSC
0.069
(1.75 mm)
± 0.004
(0.10 mm)
0.008 (0.20 mm) MAX.
0.002 (0.05 mm) MIN.
0.010 (0.25 mm)
0.004 (0.090 mm)
8 MAX.
0.030 (0.75 mm)
± 0.008 (0.10 mm)
0.078
(2.00 mm)
MAX.
0.283 (7.20 mm)
± 0.012 (0.30 mm)
PIN 20
PIN 1
0.209 (5.30 mm)
± 0.012 (0.30 mm)
0.307 (7.80 mm)
± 0.016 (0.307 mm)
PIN 1
INDICATOR
Description
The AA110-85 is a 5 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. For low power applications (< -10 dBm)
see part number AA117-85
.
Parameter1
Condition
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss2
DC–0.5 GHz
1.4
1.7
dB
DC–1.0 GHz
1.7
2.1
dB
DC–2.0 GHz
2.2
2.6
dB
Attenuation Range
31
dB
Attenuation Accuracy3
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
DC–2.0 GHz
± (0.4 + 6% of
Attenuation Setting in dB)
dB
VSWR (I/O)4
DC–2.0 GHz
1.5:1
1.8:1
Switching Characteristics5
Rise, Fall (10/90% or 90/10% RF)
15
ns
On, Off (50% CTL to 90/10% RF)
50
ns
Video Feedthru
50
mV
Input Power for 1 dB Compression
VCC = +5 V
0.5–2.0 GHz
+22
+27
dBm
0.05 GHz
+16
+20
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +5 dBm
0.5–2.0 GHz
+40
+46
dBm
VCC = +5 V
0.05 GHz
+28
+34
dBm
Supply Voltage
VCC = 5 V @ 750 A Typ., 1 mA Max.
Control Voltages
CTL1, CTL2, CTL4, CTL8, CTL16, Low = 0 to 0.8 V @ 20 A Typ.
CTL1, CTL2, CTL4, CTL8, CTL16, High = 3.0 to 5.0 V @ 20 A Typ.
Electrical Specifications at -40°C to +85°C (VCC = +5 V)
1. All measurements made in a 50
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.
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