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CXA1991N Datasheet

  • CXA1991N

  • FM Pager/FM Multiplex Tuner

  • 247.32KB

  • 12頁

  • SONY   SONY

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CXA1991N
FM Pager/FM Multiplex Tuner
For the availability of this product, please contact the sales office.
Description
The CXA1991N is a tuner IC designed for use in
FM pagers and FM multiplex broadcasting. A
receiver system can be configured by using the
digital data output, in combination with a decoder. It
has a battery save function and ultra-low power
consumption.
Features
鈥?/div>
Ultra-low power consumption
(I
D
= 1.2 mA for FM; I
D
= 0.8 mA for AM; V
CC
= 3 V)
鈥?/div>
LED drive circuit for tuning
鈥?/div>
Battery save function
鈥?/div>
Few external parts
Applications
鈥?/div>
Tuners for FM multiplex broadcasting
鈥?/div>
FM pagers
Absolute Maximum Ratings
(Ta=25 擄C)
鈥?/div>
Supply voltage
鈥?/div>
Operating temperature
鈥?/div>
Storage temperature
V
CC
Topr
Tstg
14
鈥?0 to +75
鈥?5 to +150
400
V
擄C
擄C
mW
20 pin SSOP (Plastic)
鈥?/div>
Allowable power dissipation
P
D
Operating Conditions
Supply voltage
V
CC
1.8 to 4.5
V
Block Diagram
FM MIX
AM OSC
GND 1
FM RF
FM OSC
FE OUT
AM IN
FM IN
REG
TUNE
11
20
19
18
17
16
15
14
13
12
FM FRONT END
REG
METER
AM FRONT END
AGC BUFF
AM IF, IF DET
AGC
FM IF DET
BATTERY
SAVE CONT
1
2
3
4
5
6
7
8
9
10
FM IF
BAND
GND 2
DISCRI
AM IF
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
鈥?鈥?/div>
DET OUT
AGC
AFC
E95925B8Y
V
CC
B.S

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