GaAs IC 4 Bit Digital Attenuator
3 dB LSB DC鈥? GHz
AT001D6-25
Features
s
Attenuation in 3 dB Steps to 45 dB
s
Low DC Power Consumption
s
Low Cost SOIC-16 Plastic Package
PIN 16
SOIC-16
0.050
(1.27 mm) BSC
PIN 1
INDICATOR
0.244 (6.20 mm)
0.228 (5.80 mm)
Description
The AT001D6-25 is an IC FET digital attenuator consisting
of four monolithic attenuators with LSB of 3 dB and a total
attenuation of 45 dB with all attenuators connected.
The attenuator is packaged in the plastic 16 lead surface
mount package for low cost commercial cellular radio
applications.
PIN 1
0.068
(1.73 mm) MAX.
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藲
CHAMFER
8藲 MAX.
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)
0.158 (4.00 mm)
0.150 (3.80 mm)
Electrical Specifications at 25擄C (0, -5 V)
Parameter
1
Insertion Loss
3
Attenuation Range
4
Frequency
2
DC鈥?.5 GHz
DC鈥?.0 GHz
DC鈥?.0 GHz
Min.
Typ.
2.5
3.5
Max.
3.2
4.0
Unit
dB
dB
10% or 鹵 0.5 dB
Whichever is Greater
12% for 45 dB Attenuation
1.4:1
1.6:1
1.6:1
1.8:1
VSWR (I/O)
DC鈥?.5 GHz
DC鈥?.0 GHz
Operating Characteristics at 25擄C (0, -5 V)
Parameter
Switching Characteristics
5
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
0.50鈥?.0 GHz
0.05 GHz
For Two-tone Input Power +13 dBm
0.50鈥?.0 GHz
0.05 GHz
Frequency
Min.
Typ.
10
20
20
+24
+14
+43
+32
Max.
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
Input Power for 1 dB Compression
Intermodulation Intercept Point (IP3)
Control Voltages
V
Low
= 0 to -0.2 V @ 20 碌A(chǔ) Max.
V
High
= -5 V @ 50 碌A(chǔ) to -8 V at 200 碌A(chǔ) Max.
1. All measurements made in a 50
鈩?/div>
system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/擄C.
4. Attenuation referenced to insertion loss.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Alpha Industries, Inc.
[781] 935-5150
鈥?/div>
Fax
[617] 824-4579
鈥?/div>
Email
sales@alphaind.com
鈥?/div>
www.alphaind.com
Specifications subject to change without notice. 3/99A
1
1
2
