GaAs IC 4 Bit Digital Attenuator
With Driver 1 dB LSB DC–2 GHz
AK802D4-24
Features
■
Attenuation in 1 dB Steps to 15 dB
■
Low Cost SOIC-14 Plastic Package
■
Low DC Current < 16 mA Total
■
Integral Driver +5 V, -5.6 V Supply Voltages
0.050 (1.27 mm)
0.016 (0.40 mm)
0.158 (4.01 mm)
0.150 (3.81 mm)
PIN 1
INDICATOR
SOIC-14
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)
Description
The AK802D4-24 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 and -5.6 V
are required.
The attenuator is packaged in a 14 lead plastic SOIC.
PIN 1
0.068
(1.73 mm) MAX.
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, -5.6 V)
Parameter
1
Insertion Loss
3
Frequency
2
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–1.0 GHz
DC–2.0 GHz
VSWR (I/O)
DC–1.0 GHz
DC–2.0 GHz
Min.
Typ.
1.7
2.2
3.1
Max.
2.0
2.5
3.5
Unit
dB
dB
dB
dB
dB
Attenuation Accuracy Per Bit
4
(7% or 0.25 dB
Whichever is Greater)
(10% or 0.5 dB
Whichever is Greater)
1.2:1
1.4:1
1.3:1
1.5:1
Operating Characteristics at 25°C (+5 V, -5.6 V)
Parameter
Switching
Characteristics
5
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
0.5–1.0 GHz
0.05 GHz
V
Low
V
High
+5.0 V ± 0.20 V @ 4 mA Typ.
-5.6 V ± 0.20 V @ 12 mA Typ.
0.0
4.5
4.8
-5.4
Frequency
Min.
Typ.
15
30
30
+24
+16
0.2
5.0
5.2
-5.8
Max.
Unit
ns
ns
mV
dBm
dBm
V
V
V
V
Input Power for 1 dB Compression
Control Voltages
Supply Voltages
6,7
1. All measurements made in a 50
Ω
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. Protection circuit for driver included in package.
7. Current drain @ 85°C = 6 mA Typ. @ +5 V, 16 mA Typ. @ -5 V.
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
1
SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
