ARA1400 Datasheet, PDF (6/12 Pages) ANADIGICS, Inc – Reverse Amplifier with Step Attenuator

ARA1400
continued: AC Electrical Specifications
(TA = 25 °C; VDD, VATTN = +5.0 VDC; Tx = 0 V (switch closed), Tx = +5 V (switch open))
PARAMETER
MIN TYP MAX UNIT COMMENTS
Input Return Loss
(75 Ohm characteristic impedance)
-
Output Impedance
-
Output Return Loss
-
(75 Ohm characteristic impedance)
-
Output Voltage Transient
switch closed / switch open
-
Note: As measured in ANADIGICS test fixture.
-20
-15
dB
-20
-12
-15
-10
Ohms
Switch closed
Switch open
-17
-15
-12
-10
dB
Switch closed
Switch open
4
7 mVp-p
PARAMETER
Table 6: Logic Interface Specifications
(TA = 25 °C; VDD, VATTN = +5.0 VDC)
MIN TYP MAX UNIT COMMENTS
Attenuator Control Logic
VIN,LOW
VIN,HIGH
0
-
2.7
-
0.5
5.5
V
Bypasses atten. stage
Enables atten. stage
Attenuator Control Impedance
-
5K
-
Ohms
Output Switch Control Logic
VIN,LOW
VIN,HIGH
0
-
2.8
-
1
5.5
V
Switch closed
Swicth open
Output Switch Control Impedance
-
10 K
-
Ohms
Table 7: Attenuator Logic
ATTENUATION (dB)
0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60
4 dB Logic Input (pin 16)
LHLHLHLHLHLHLHLH
8 dB Logic Input (pin 15)
L L HHL L HHL LHHL L HH
16 dB Logic Input (pin 14) L L L L H H H H L L L L H H H H
32 dB Logic Input (pin 13) L L L L L L L L H H H H H H H H
Notes: “L” = logic low, “H” = logic high
6
Data Sheet - Rev 2.1
03/2004