CXA1999 SONY [Sony Corporation], CXA1999 Datasheet - Page 5

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

No.
Pin
13
15
16
14
17
18
19
20
REG CONT
REG OUT
NRZ OUT
L.C. OUT
LVA OUT
CHARGE
Symbol
MIX IN
GND
Pin voltage
1.0 V
1.4 V
0 V
—
—
—
—
—
20
18
17
13
15
16
14
Equivalent circuit
78k
72
20k
100k
—5—
72
4.16k
22k
2k
1k
4.16k
GND
GND
V
GND
CC
GND
V
V
GND
CC
CC
Level comparator, NRZ
comparator and LVA comparator
outputs. They are open
collectors.
(Applied voltage range: –0.5 V to
+7.0 V)
Controls the ON/OFF operation
of the quick-charge circuit.
Set this pin high to execute the
quick charge.
(Applied voltage range: –0.5 V to
+7.0 V)
Output for internal constant-
voltage source amplifier.
Connect the base of PNP
transistor.
(Current capacity: 100 µA)
Constant-voltage source output.
Controlled to maintain 1.0 V.
Ground
Mixer input.
Description
CXA1999N