Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 3/99A
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF)
10
ns
On, Off (50% CTL to 90/10% RF)
20
ns
Video Feedthru
30
mV
Input Power for 1 dB Compression
0.502.0 GHz
+25
dBm
0.05 GHz
+16
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +13 dBm
0.502.0 GHz
+43
dBm
0.05 GHz
+30
dBm
Control Voltages
V
Low
0.0
0.2
V
V
High
4.5
5.0
V
Supply Voltages
6,7
+5 V 0.2 V @ 3 mA Typ.
4.8
5.2
V
-5 V 0.20 V @ 10 mA Typ.
-4.8
-5.2
V
GaAs IC 4 Bit Digital Attenuator
With Driver 2 dB LSB DC2 GHz
Features
Attenuation in 2 dB Steps to 30 dB
Low DC Current Consumption
< 10 mA Total
Integral Driver 5 V Supply Voltages
Low Cost SOIC-16 Plastic Package
AK100-25
0.158 (4.00 mm)
0.150 (3.80 mm)
0.068
(1.73 mm) MAX.
0.244 (6.20 mm)
0.228 (5.80 mm)
0.049 (1.24 mm)
0.016 (0.41 mm)
0.016 MAX.
(0.41 mm)
x 45
CHAMFER
0.020 (0.51 mm)
0.013 (0.33 mm)
0.050
(1.27 mm) BSC
PIN 16
PIN 1
PIN 1
INDICATOR
0.394 (10.00 mm)
0.386 (9.80 mm)
0.010 (0.25 mm)
0.004 (0.10 mm)
0.0098 (0.25 mm)
0.0075 (0.19 mm)
8 MAX.
Description
The AK100-25 is an IC FET digital attenuator consisting
of four monolithic attenuators with an LSB of 2 dB and a
total attenuation of 30 dB with all attenuators connected.
The device has integral drivers for each bit requiring less
than 3 mA per bit. DC supply voltages of 5 V are required.
The attenuator is packaged in a 16 lead plastic SOIC.
Operating Characteristics at 25C (+5 V, -5 V)
Parameter
1
Frequency
2
Min.
Typ.
Max.
Unit
Insertion Loss
3
DC0.5 GHz
1.8
2.0
dB
DC1.0 GHz
2.0
2.5
dB
DC2.0 GHz
3.0
3.5
dB
Attenuation Accuracy per Bit
4
DC2.0 GHz
+(0.3 dB + 3% of
dB
Attenuation Setting)
VSWR (I/O)
DC2.0 GHz
1.4:1
1.6:1
Electrical Specifications at 25C (+5 V, -5 V)
SOIC-16
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 @ 85C = 5 mA Typ. @ +5 V, 14 mA Typ. @ -5 V.
GaAs IC 4 Bit Digital Attenuator With Driver 2 dB LSB DC2 GHz
AK100-25
2
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 3/99A
0
1
2
3
4
0
0.5
1.0
1.5
2.0
2.5
Frequency (GHz)
Insertion Loss vs. Frequency
dB
0
0.5
1.0
1.5
2.0
2.5
Frequency (GHz)
Attenuation 2 dB to 16 dB
0
2
4
6
8
10
12
14
16
18
dB
0
0.5
1.0
1.5
2.0
2.5
Frequency (GHz)
Typical VSWR vs. Frequency (All States)
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
Typical Performance Data (+5 V, -5 V)
C
2
J
1
C
3
C
4
C
1
J
2
+5 V
-5 V
GND
GND
GND GND GND GND
GND
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
16 dB
8 dB
4 dB
2 dB
Characteristic
Value
RF Input Power
0.5 W > 500 MHz
0.1 W @ 50 MHz
Supply Voltage
+6 V, -6 V
Control Voltage
-0.2 V, +6 V
Operating Temperature
0C to +70C
Storage Temperature
-65C to +150C
JC
30C/W
Absolute Maximum Ratings
Pin Out
0
0.5
1.0
1.5
2.0
2.5
Frequency (GHz)
Attenuation 18 dB to 30 dB
18
22
24
26
28
30
32
20
dB
Truth Table
C
1
C
2
C
3
C
4
Attenuation
16 dB
8 dB
4 dB
2 dB
J
1
J
2
0
0
0
0
Reference I.L.
0
0
0
1
2 dB
0
0
1
0
4 dB
0
1
0
0
8 dB
1
0
0
0
16 dB
1
1
1
1
30 dB
"0" = 0.0 to 0.2 V, "1" = 4.5 to 5.0 V.
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