CXA1191L-S28-R [UTC]
FM/AM Radio; FM / AM收音机型号: | CXA1191L-S28-R |
厂家: | Unisonic Technologies |
描述: | FM/AM Radio |
文件: | 总7页 (文件大小:186K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
CXA1191
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
Lead-free:
Halogen-free:CXA1191G
CXA1191L
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
ORDERING INFORMATION
Ordering Number
Package
Packing
Normal
Lead Free Plating
CXA1191L-D28-T
CXA1191L-S28-R
CXA1191L-S28-T
Halogen Free
CXA1191-D28-T
CXA1191-S28-R
CXA1191-S28-T
CXA1191G-D28-T
CXA1191G-S28-R
CXA1191G-S28-T
DIP-28
SOP-28
SOP-28
Tube
Tape Reel
Tube
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Copyright © 2009 Unisonic Technologies Co., LTD
QW- R110-014.B
CXA1191
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
VOLTAGE(V)
VCC=3V VCC=6V
PIN
1
DESCRIPTION
SYMBOL
MUTE
EQUIVALENT CIRCUIT
FM
AM
0
FM
AM
0
0
0
Phase-shift circuit, Connect
ceramic discriminator.
2
3
FM DISCRI 2.18
2.7
1.5
1.5
4.88
3.0
3.0
5.43
3.0
Vcc
Negative feedback pin
NF
1.5
1.5
X100
27
X100
27 Power amplifier output pin
AF OUT
3.0
GND
3
Connect variable resistor for
electronic volume control.
4
VOL CONT 1.25
1.25
1.25
1.25
1.25
1.25
1.25
5
AM local oscillation circuit
AM OSC
1.25
6
8
AFC variable capacitor pin
Regulator pin 1.25V (Typ.)
AFC
1.25
1.25
Note
1.25
1.25
1.25
Note
1.25
REG OUT
7
9
FM local oscillation circuit
Connect FM RF tuning coil.
FM OSC
1.25
1.25
1.25
1.25
FM RF
1.25
0.3
1.25
0
1.25
0.3
1.25
0
12 FM RF input pin
FM RF IN
10 AM RF input
AM RF IN
1.25
1.25
1.25
1.25
11
13
NC
GND
(FE GND)
0
0
0
0
0
0
0
0
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CXA1191
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS(Cont.)
VOLTAGE(V)
VCC=3V VCC=6V
PIN
DESCRIPTION
SYMBOL
EQUIVALENT CIRCUIT
FM
AM
FM
AM
IF output pin of FM and AM,
Connect IF filter
FM/AM
FE OUT
14
0.36
0.2
0.36
0.2
Vcc
FM and AM bands selection
switch pin.
15 During GND it becomes AM
and during open it becomes
FM.
BAND
SELECT
0.84
0
0
0.88
0
0
10K
15
GND
16
16 Input pin of AM IF
AM IF IN
0
0
2K
17 Input pin of FM IF
FM IF IN
NC
0.34
0
0
0
0.88
0
0
0
18
19
1.25V
Meter drive circuit
19
METER
1.6
1.6
4.5
4.5
(For tuning indicator)
N
GND
20
GND
0
0
0
0
22
AFC pin of W band.
21 During AM, it determines
time constant of AGC.
AFC pin of J band.
AFC/AGC
1.25
1.49
1.25
1.49
22 During AM, it determines
time constant of AGC.
23 Detection output pin
AFC/AGC
DET OUT
1.25
1.25
1.25
1.0
1.25
1.25
1.25
1.0
21
GND
11K
24
24 Power amplifier input pin
AF IN
0
0
0
0
GND
RIPPLE
FILTER
25 Ripple filter
2.71
2.71
5.4
5.4
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CXA1191
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS(Cont.)
VOLTAGE(V)
VCC=3V VCC=6V
PIN
6
DESCRIPTION
Power supply pin
SYMBOL
EQUIVALENT CIRCUIT
FM
AM
3.0
0
FM
AM
6.0
0
VCC
3.0
0
6.0
0
28 Power GND
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.
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CXA1191
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
FM/AM
BAND
SELECT
AF
OUT
RIPPLE
FILTER
AF
IN
DET
OUT
AFC
AQC
AFC
AQC
IF
END
FM
IF IN
AM
IF IN
GND
28
Vcc
26
METER
19
NC
18
27
25
24
23
22
21
20
17
16
15
AM IF DET AGC
AM FE
AF POWER AMP
TUNING METER
FM IF
FM DISCRIMINATOR
FM FE
3
4
5
6
7
8
9
10
11
NC
12
13
14
1
2
FM
DISCRI
AM
OSC
FM
OSC
RUG
OUT
FM
RF
AM
RF IN
FW
RF IN
FM
GND
FM/AM
IF OUT
MUTE
NF
VOL
AFC
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CXA1191
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta =25°C)
PARAMETER
SYMBOL
RATINGS
9
UNIT
V
Supply Voltage
VCC
DIP-28
1000
mW
mW
°C
°C
°C
Power Dissipation
PD
SOP-28
700
Junction Temperature
Operating Temperature
Storage Temperature
TJ
+150
TOPR
TSTG
-20 ~ +85
-40 ~ +150
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
RATINGS
2 ~ 8.5
UNIT
V
DIP-28
Supply Voltage
VCC
SOP-28
2 ~ 7.5
V
ELECTRICAL CHARACTERISTICS (Ta=25°C, Vcc=6V)
SW
TEST
PARAMETER
SYMBOL CONDITIONS
1 2 3 4 5 6
CONDITIONS
MIN TYP MAX UNIT
POINT
AM Circuit Current
FM Circuit Current
FM Front End Voltage
Gain
ID1
ID2
A B A A A A
A B A A B A
IA
IA
No signal, AM
No signal, FM
-
-
3.5 10.0 mA
7.0 14.0 mA
GV1
VD1
A B A A B A VA VIN1=40dBµV,100MHZ
IN3=90dBµV,10.7 MHZ
32
39
39
46
dB
FM Detection Output
Level
V
A - - A B A VD
77.5 155 Vrms
(1 kHz,22.5kHz DEV)
VIN3 level at a point 3 dB
down from
FM IF Knee Level
VD2
A - - A B A VD
-
24
32 dBμV
V
IN3=90dBµV,10.7 MHZ
(1 kHz,22.5kHz DEV)
IN3=90dBµV,10.7 MHZ
(1 kHz,75kHz DEV)
IM VIN3=60dBµV,10.7 MHZ
FM Detection Output
Distortion Factor
FM Meter Current
AM Front End Voltage
Gain
V
THD1 A - - A B A VD
-
0.3
3.5
22
2.0
7.0
29
%
mA
dB
IB1
A - - A B A
1.8
15
GV2
A A A A A A VB VIN3=60dBµV,1660 kHZ
VIN3 w hen 455kHz
A A - A A A VD (1kHz, 30% MOD)
output is – 34dBm
AM IF Voltage Gain
GV3
14
20
27 dBµV
AM Detection Output
Level
V
IN3=85dBµV,455kHZ
(1kHz, 30% MOD)
IN3=85dBµV,455kHZ
(1kHz, 30% MOD)
IN2=60dBµV,1660kHZ
(1kHz, 30% MOD),Vcc=7,8V
IN3=60dBµV,10.7MHZ
VD3
IB2
THD2 A A B B A A VD
GV4 A - - - - B VE
A A - A A A VD
39
1.3
-
77.5 155 Vrms
V
AM Meter Current
A A - A A A IM
3.0
0.6
7.0
2.0
36
mA
%
AM Detection Output
Distortion Factor
V
V
Audio Voltage Gain
27
31.5
dB
VIN4=-30dBµV,1kHZ
Distortion factor for output of
50mVV
Audio Distortion Factor
THD3 A - - - - B VE
-
0.3
15
2.5
22
%
VIN3=60dBµV,10.7MHZ
VIN4=-20dBµ m,1kHZ
Muting level for 50 mW
output
Muting Level
VD4
A - - - - B VE
8
dB
VIN4=-20dBm,1kHZ
VIN3 OFF
0dBµV=1µV
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CXA1191
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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