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PDF CXA-1191 Data sheet ( Hoja de datos )
| Número de pieza | CXA-1191 | |
| Descripción | FM/AM Radio (for radio-cassette tape recorders and headphone tape recorders) | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UTCCXA1191 LINEAR INTEGRATED CIRCUIT
FM/AM Radio
DESCRIPTION
The UTC CXA1191 is a one-chip FM/AM radio IC designed
for radio-cassette tape recorders and headphone tape
recorders.
FEATURES
*Small number of peripheral components
*Low current consumption (Vcc=3V)
FM: lD=5.3mA (Typ.)
AM: lD=3.4mA (Typ.)
*Built-in FM/AM select switch
*Large current of AF amplifier
FUNCTIONS
FM section
RF amplifier, Mixer and OSC
(incorporating AFC variable capacitor)
IF amplifier
Quadrature detection
Tuning LED driver
AM section
RF amplifier, Mixer and OSC (with RF AGC)
IF amplifier (with IF AGC)
Detector
Tuning LED driver
AF section
Electronic volume control
FM muting
Structure
Bipolar silicon monolithic IC
ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
PARAMETER
SYMBOL
Supply voltage
Vcc
Operating temperature
Topr
Storage temperature
Tstg
Allowable power dissipation
PD
SOP-28
DIP-28
VALUE
9
-10 ~ +60
-50 ~ +125
700 (SOP-28)
1000 (DIP-28)
UNIT
V
°C
°C
mW
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
1 page  
UTCCXA1191 LINEAR INTEGRATED CIRCUIT
19 METER
1.6 1.6 4.5 4.5
1.25V
Meter drive circuit
19 (For tuning indicator)
20 GND
21 AFC/AGC
22 AFC/AGC
23 DET OUT
24 AF IN
N
GND
0
1.25
0
1.49
0
1.25
0
1.49
22
1.25 1.25 1.25 1.25
1.25 1.0 1.25 1.0
0000
11K
24
AFC pin of W band.
During AM, it determines
time constant of AGC.
AFC pin of J band.
During AM, it determines
21 time constant of AGC.
Detection output pin
GND
Power amplifier input pin
25 RIPPLE
FILTER
2.71 2.71 5.4 5.4
25
GND
Vcc Ripple filter
17K
73K
90K
26 Vcc
3.0 3.0 6.0 6.0
Power supply pin
28 GND
0000
Power GND
*Note: The pin voltage of pin 6 during AM, it is the same pin voltage of pin22 (23) during J BAND and is the same
pin voltage of pin 21 (22) during W BAND.
UTC UNISONIC TECHNOLOGIES CO., LTD. 5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet CXA-1191.PDF ] | |
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