CXA1999 SONY [Sony Corporation], CXA1999 Datasheet - Page 4

• Manufacturer Part Number: CXA1999
• Description: IF Amplifier for M-ary FSK Pagers
• Manufacturer: SONY [Sony Corporation]

No.
Pin
10
11
12
8
9
DET OUT
LPF OUT
Symbol
LPF IN
QUAD
RSSI
Pin voltage
1.4 V
0.2 V
0.2 V
0.2 V
0 V
9
10
12
8
11
Equivalent circuit
20p
72
72
72
72
—4—
50p
55k
70k
7k
20k
7k
22k
V
GND
V
V
GND
GND
V
GND
CC
CC
GND
CC
V
CC
CC
Connects the phase shifter of FM
detector circuit.
FM detector output.
RSSI circuit output.
Operational amplifier input.
Level comparator and NRZ
comparator inputs. Output for
operational amplifier is
connected.
Description
CXA1999N