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Alpha Industries
Alpha Industries

AK002D4-24 Datasheet Preview

AK002D4-24 Datasheet

GaAs IC 4 Bit Digital Attenuator

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AK002D4-24 pdf
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GaAs IC 4 Bit Digital Attenuator
With Driver 1 dB LSB DC–2 GHz
AK002D4-24
Features
s Attenuation in 1 dB Steps to 15 dB
s Integral Driver ±5 V Supply Voltages
s Low Cost SOIC-14 Plastic Package
Description
The AK002D4-24 is an IC FET digital attenuator
consisting of four monolithic attenuators with an LSB of
1 dB and a total attenuation of 15 dB with all attenuators
connected.
The device has integral drivers for each bit requiring less
than 4 mA per bit. DC supply voltages of ±5 V are required.
The attenuator is packaged in a 14 lead plastic SOIC.
SOIC-14
0.050 (1.27 mm)
0.016 (0.40 mm)
0.158 (4.01 mm)
0.150 (3.81 mm)
PIN 1
INDICATOR
PIN 1
0.068
(1.73 mm) MAX.
PIN 14
0.050
(1.27 mm) BSC
0.244
(6.20 mm)
0.228
(5.80 mm)
0.020 (0.51 mm)
0.013 (0.33 mm)
0.049 (1.24 mm)
0.016 (0.41 mm)
0.016 MAX.
(0.41 mm)
x 45˚
CHAMFER
8˚ MAX.
0.344 (8.75 mm)
0.337 (8.55 mm)
0.010 (0.25 mm)
0.0098 (0.25 mm)
0.004 (0.10 mm)
0.0075 (0.19 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
Electrical Specifications at 25°C (+5 V, -5 V)
Insertion Loss3
Parameter1
Attenuation Accuracy Per Bit4
VSWR (I/O)
Frequency2
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.0 GHz
DC–0.5 GHz
DC–2.0 GHz
Min.
Typ. Max.
2.0 2.5
2.5 3.0
3.7 4.0
10% or ±0.5 dB
Whichever is Greater
1.3:1
1.6:1
1.5:1
1.8:1
Unit
dB
dB
dB
dB
Operating Characteristics at 25°C (+5 V, -5 V)
Parameter
Switching Characteristics5
Input Power for 1 dB Compression
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +13 dBm
Control Voltages
Supply Voltages6,7
VLow
VHigh
+5 V ± 0.20 V @ 4 mA Typ.
-5 V ± 0.20 V @ 16 mA Typ.
1. All measurements made in a 50 system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/°C.
4. Attenuation referenced to insertion loss.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
6. Supply voltage and ground must be connected before control voltage is
applied. Use of toggle switches or other similar components may produce
voltage spikes which can cause irreversible damage to the device.
7. Current drain @ 85°C = 6 mA Typ. @ +5 V, 20 mA Typ. @ -5 V.
Frequency
0.50–2.0 GHz
0.05 GHz
0.50–2.0 GHz
0.05 GHz
Min.
0.0
4.5
4.8
-4.8
Typ.
20
40
30
+24
+16
+37
+26
Max.
0.2
5.0
5.2
-5.2
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
V
V
V
V
Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
Specifications subject to change without notice. 3/99A
1



Alpha Industries
Alpha Industries

AK002D4-24 Datasheet Preview

AK002D4-24 Datasheet

GaAs IC 4 Bit Digital Attenuator

No Preview Available !

AK002D4-24 pdf
GaAs IC 4 Bit Digital Attenuator With Driver 1 dB LSB DC–2 GHz
AK002D4-24
Typical Performance Data (+5 V, -5 V)
5
4
3
+85˚C
2
-40˚C
1
5
4
3
2
1
DC 1
2
Frequency (GHz)
Insertion Loss vs. Frequency
2.5
DC 1
2
Frequency (GHz)
1, 2, 4 dB Bits vs. Frequency
16
2.2 15
1.9 14
1.6 9
1.3 8
1.0
DC
1
2
Frequency (GHz)
VSWR vs. Frequency (All States)
Absolute Maximum Ratings
7
DC
1
2
Frequency (GHz)
8, 15 dB Bits vs. Frequency
Pin Out
Characteristic
RF Input Power
Supply Voltage
Control Voltage
Operating Temperature
Storage Temperature
ΘJC
Truth Table
C1
8 dB
C2
1 dB
C3
2 dB
00 0
01 0
00 1
00 0
10 0
11 1
“0” = 0.0 to 0.2 V, “1” = 4.5 to 5.0 V.
Value
0.5 W > 500 MHz
0.1 W @ 50 MHz
+6 V, -6 V
+6 V
0°C to +70°C
-65°C to +150°C
30°C/W
C4
4 dB
1
1
1
0
1
0
Attenuation
J1–J2
Reference I.L.
1 dB
2 dB
4 dB
8 dB
15 dB
-5 V +5 V GND C1 C2 C3 C4
14 13 12 11 10 9
8
8 dB 1 dB 2 dB 4 dB
12 3 4 5 6 7
J1 GND GND GND GND GND J2
2 Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
Specifications subject to change without notice. 3/99A


Part Number AK002D4-24
Description GaAs IC 4 Bit Digital Attenuator
Maker Alpha Industries
Total Page 2 Pages
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