GaAs IC Diversity Switch
DC–2.5 GHz
ASC02D2-12
(Previously ADC02D2-12)*
Features
SOIC-8
I Low Cost SOIC-8 Plastic Package
PIN 8
0.050 (1.27 mm) BSC
I Independent Four Port Switching
0.244 (6.20 mm)
0.228 (5.80 mm)
PIN 1
INDICATOR
I Individual Voltage Control on Each Port
Description
0.020 (0.51 mm) MAX.
0.016 MAX.
The ADC02D2 is a 4 port switch with independent
DC voltage control on each port mounted in the
SOIC-8 package.
PIN 1
0.049
(0.41 mm) x
45˚ CHAMFER
(1.24 mm)
0.016
0.068
(1.73 mm) MAX.
In transmit or receive applications, the asymmetric design
allows for good isolation between transmit and receive
path while maintaining medium power handling in
transmit port.
(0.41 mm)
8˚
MAX.
0.197 (5.00 mm)
0.189 (4.80 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
0.010 (0.25 mm)
0.004 (0.10 mm)
Electrical Specifications at 25°C (0, -5 V)
1
2
Parameter
Frequency
Min.
Typ.
Max.
Unit
3
Insertion Loss
Receiver
(RX–J1, J2)
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
1.0
1.0
1.1
1.1
1.1
1.2
1.3
1.4
dB
dB
dB
dB
Insertion Loss
Transmit
(TX–J1, J2)
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
0.8
0.8
0.9
0.9
0.9
1.0
1.1
1.2
dB
dB
dB
dB
Isolation
(RX–J1, J2)
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
34
28
22
20
37
30
24
22
dB
dB
dB
dB
Isolation
(TX–J1, J2)
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
32
26
20
18
33
27
21
19
dB
dB
dB
dB
4
VSWR
DC–1.0 GHz
DC–2.5 GHz
1.5:1
1.8:1
1.7:1
2.0:1
Operating Characteristics at 25°C (0, -5 V)
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
5
Switching Characteristics
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
3
6
30
ns
ns
mV
Input Power for 1 dB Compression
(TX–J1, J2)
0.50–2.0 GHz
0.050 GHz
+27
+18
dBm
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +13 dBm
VLow = 0 to -0.2 V @ 20 µA Max.
0.50–2.0 GHz
0.050 GHz
+40
+29
dBm
dBm
Control Voltages
VHigh = -5 V @ 50 µA to -8 V @ 200 µA Max.
4. Insertion loss state.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
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.
*Due to conflict with another company’s product numbering system, Alpha’s attenuator product “ADC02D2-12” is being changed to “ASC02D2-12”.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
1
Specifications subject to change without notice. 10/99A