ARA05050_12 Datasheet, PDF (6/14 Pages) ANADIGICS, Inc – Reverse Amplifier with Step Attenuator

ARA05050
PARAMETER
continued: AC Electrical Specifications
TA=25°C; VDD, Vattn = +5.0 VDC
MIN TYP MAX UNIT COMMENTS
Output Noise Power
Active/No Signal/Min. Atten. Set.
Active/No Signal/Max. Atten. Set.
-
-
-
-
-
-
dBmV
Any 160 kHz bandwidth
from 5 to 42 MHz
Input Impedance
-
-75
-
Ohms
Input Return Loss
-
-20
-15
dB 75  system
Output Impedance
-
75
-
Ohms
Output Return Loss
-
Note: As measured in ANADIGICS test fixture
-20
-15
dB 75  system
Table 6: Logic Interface Specifications
TA=25°C; VDD, Vattn = +5.0 VDC
PARAMETER
MIN TYP MAX UNIT COMMENTS
Attenuator Control Logic
VIN,LOW
VIN,HIGH
0
-
2.8
-
0.5
5.5
V
Bypasses atten. stage
Enables atten. stage
Attenuator Control Impedance
-
5K
-
Ohms
Note:
(1) Specification applies when 470 Ohm resistor is connected from pin 2 to ground (see test circuit in Figure 4).
ATTENUATION (dB)
0
2 dB Logic Input (pin 16)
L
4 dB Logic Input (pin 15)
L
8 dB Logic Input (pin 14)
L
16 dB Logic Input (pin 13) L
Note: “L” = logic low, “H” = logic high
Table 7: Attenuator Logic
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
HLHLHLHLHLHLHLH
LHHL L HHL LHHL L HH
L L L HHHHL L L L HHHH
L L L L L L L HHHHHHHH
6
Data Sheet - Rev 2.7
04/2012