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参数资料
| 型号： | AA226-87 |
| 元件分类： | 衰减器 |
| 英文描述： | 500 MHz - 2500 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 2.6 dB INSERTION LOSS-MAX |
| 封装： | PLASTIC, TSSOP-16 |
| 文件页数： | 5/5页 |
| 文件大小： | 329K |
| 代理商： | AA226-87 |
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
5
Specifications subject to change without notice. 9/00A
GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5–2.5 GHz
AA226-87
IP3
(dBm)
Attenuation (dB)
IP3 vs. Attenuation and
Temperature (500 MHz)
0123456789 10 11 12 13 14 15
46
47
48
49
50
51
52
53
54
55
56
+25C
+85C
-40C
Compression Point vs. Attenuation,
Voltage, and Temperature
Truth Table
V1
V2
V3
V4
Attenuation
8 dB
4 dB
2 dB
1 dB
J1–J2
VHigh
Reference I.L.
VHigh
01 dB
VHigh
0VHigh
2 dB
VHigh
0VHigh
VHigh
4 dB
0VHigh
VHigh
8 dB
0
15 dB Max. Atten.
12
3
4
5
6
8
16
15
14
13
12
11
9
7
10
8 dB
4 dB
2 dB
1 dB
GND
V4
V3
V2
J1
GND
V1
J2
CBL
VS
10 k
Pin Out
VHigh = +3 to +5 V (VS = VHigh ± 0.2 V).
Characteristic
Value
RF Input Power
1 W > 500 MHz 0/8 V
0.5 W @ 50 MHz 0/8 V
Supply Voltage
+8 V
Control Voltage
-0.2 V, +8 V
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
Absolute Maximum Ratings
Note: Exceeding these parameters may cause irreversible damage.
DC blocking capacitors (CBL) and biasing resistor must be supplied externally
for positive voltage operation.
CBL = 47 pF for operation >500 MHz.
Attenuation
Control
Input Power @ 1 dB Compression
State
Voltage (V) +25°C (dBm) +85°C (dBm) -40°C (dBm)
Ins. Loss
3
24.5
24.1
24.6
1 dB
3
25.2
24.8
25.2
2 dB
3
25.0
24.3
24.9
4 dB
3
31.2
30.4
32.8
8 dB
3
28.3
26.3
29.2
15 dB
3
26.6
24.8
27.5
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