ARA1400S12 Datasheet, PDF (6/8 Pages) ANADIGICS, Inc – CATV Reverse Amplifier with step Attenuator

PIN
1
2
3
4
5
6,7,8,9
10
11
12
13
14
15
16
17
18
19
20,21,22,23
24
25
26
27
28
A
ARA1400S12
CATV REVERSE AMPLIFIER WITH STEP ATTENUATOR
Advanced Product Information Rev. 2
PIN DESCRIPTION
FUNCTION
Dig GND
NC
ATT_IN
RF_OUT1+V_DD1
V_REF1
AC_GND1
RF_IN
I_SET1
5V digital
32 dB
16 dB
8 dB
4 dB
V_DD2
R_REF2
RF_OUT
AC_GND2
AC_GND3
Tx
RF_IN2
I_SET2
ATT_OUT
DESCRIPTION
Digital Ground
Attenuator Input
RF Output and +5v Supply for 1st
Amplifier Stage
Reference voltage for 1st Amplifier
AC Ground for 32 dB attenuator bit.
These pins must be externally ac
decoupled
RF Input to 1st Amplifier Stage &
Shutdown pin for 1st Amplifier
Resistor Set Current for 1st
Amplifier
5 volts digital supply voltage
32 dB Attenuator Control Parallel
data input
16 dB Attenuator Control Parallel
data input
8 dB Attenuator Control Parallel
data input
4 dB Attenuator Control Parallel
data input
+5V Supply for 2nd Amplifier Stage
Reference voltage for 2nd Amplifier
RF Output From Switch
AC Ground for 4,8, 16 dB
attenuator bits. These pins must be
externally ac decoupled.
AC Ground for output switch. These
pins must be externally ac
decoupled.
Output Switch Control
RF Input to 2nd Amplifier Stage and
Shutdown pin for 2nd Amplifier
Resistor set current for 2nd
Amplifier (ground for max
performance)
Attenuator Output
6