UTC CXA1191L-S28-T Fm/am radio Datasheet

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:
CXA1191L
Halogen-free:CXA1191G
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
Normal
CXA1191-D28-T
CXA1191-S28-R
CXA1191-S28-T
Ordering Number
Lead Free Plating
CXA1191L-D28-T
CXA1191L-S28-R
CXA1191L-S28-T
Halogen Free
CXA1191G-D28-T
CXA1191G-S28-R
CXA1191G-S28-T
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Copyright © 2009 Unisonic Technologies Co., LTD
Package
Packing
DIP-28
SOP-28
SOP-28
Tube
Tape Reel
Tube
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QW- R110-014.B
CXA1191
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
„
PIN
DESCRIPTION
1
SYMBOL
MUTE
2
Phase-shift circuit, Connect
ceramic discriminator.
3
Negative feedback pin
VOLTAGE(V)
VCC=3V
VCC=6V
FM
AM
FM
AM
0
0
0
0
FM DISCRI
2.18
2.7
4.88
5.43
NF
1.5
1.5
3.0
3.0
EQUIVALENT CIRCUIT
Vcc
X100
27
X100
27
Power amplifier output pin
AF OUT
1.5
1.5
3.0
3.0
GND
3
4
Connect variable resistor for
VOL CONT
electronic volume control.
1.25
1.25
1.25
1.25
5
AM local oscillation circuit
AM OSC
1.25
1.25
1.25
1.25
6
AFC variable capacitor pin
AFC
1.25
Note
1.25
Note
8
Regulator pin 1.25V (Typ.)
REG OUT
1.25
1.25
1.25
1.25
7
FM local oscillation circuit
FM OSC
1.25
1.25
1.25
1.25
9
Connect FM RF tuning coil.
FM RF
1.25
1.25
1.25
1.25
12
FM RF input pin
FM RF IN
0.3
0
0.3
0
10
AM RF input
AM RF IN
1.25
1.25
1.25
1.25
NC
GND
(FE GND)
0
0
0
0
0
0
0
0
11
13
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QW- R110-014.B
CXA1191
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS(Cont.)
„
PIN
DESCRIPTION
SYMBOL
VOLTAGE(V)
VCC=3V
VCC=6V
FM
AM
FM
AM
14
IF output pin of FM and AM,
Connect IF filter
FM/AM
FE OUT
0.36
0.2
0.36
EQUIVALENT CIRCUIT
0.2
Vcc
15
FM and AM bands selection
switch pin.
During GND it becomes AM
and during open it becomes
FM.
BAND
SELECT
0.84
0
0.88
0
10K
15
GND
16
16
Input pin of AM IF
AM IF IN
0
0
0
0
17
Input pin of FM IF
FM IF IN
0.34
0
0.88
0
NC
0
0
0
0
18
2K
19
19
Meter drive circuit
(For tuning indicator)
1.25V
METER
1.6
1.6
4.5
4.5
N
GND
20
21
22
23
AFC pin of W band.
During AM, it determines
time constant of AGC.
AFC pin of J band.
During AM, it determines
time constant of AGC.
Detection output pin
GND
0
0
0
0
AFC/AGC
1.25
1.49
1.25
1.49
AFC/AGC
1.25
1.25
1.25
1.25
DET OUT
1.25
1.0
1.25
1.0
22
21
GND
24
24
Power amplifier input pin
AF IN
0
0
0
11K
0
GND
25
Ripple filter
RIPPLE
FILTER
2.71
UNISONIC TECHNOLOGIES CO., LTD
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2.71
5.4
5.4
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QW- R110-014.B
CXA1191
„
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS(Cont.)
VOLTAGE(V)
EQUIVALENT CIRCUIT
VCC=3V
VCC=6V
FM
AM
FM
AM
6
Power supply pin
VCC
3.0
3.0
6.0
6.0
28 Power GND
GND
0
0
0
0
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.
PIN
DESCRIPTION
SYMBOL
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QW- R110-014.B
CXA1191
„
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
FM/AM
BAND
SELECT
GND
AF
OUT
Vcc
RIPPLE
FILTER
AF
IN
DET
OUT
AFC
AQC
AFC
AQC
IF
END
METER
NC
FM
IF IN
AM
IF IN
28
27
26
25
24
23
22
21
20
19
18
17
16
15
AM IF DET AGC
AF POWER AMP
TUNING METER
AM FE
FM IF
FM DISCRIMINATOR
FM FE
1
MUTE
2
FM
DISCRI
3
4
5
6
7
8
9
10
11
12
13
14
NF
VOL
AM
OSC
AFC
FM
OSC
RUG
OUT
FM
RF
AM
RF IN
NC
FW
RF IN
FM
GND
FM/AM
IF OUT
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QW- R110-014.B
CXA1191
„
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta =25°C)
PARAMETER
SYMBOL
VCC
RATINGS
UNIT
9
V
DIP-28
1000
mW
Power Dissipation
PD
SOP-28
700
mW
Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
-20 ~ +85
°C
Storage Temperature
TSTG
-40 ~ +150
°C
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.
Supply Voltage
„
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
„
SYMBOL
DIP-28
SOP-28
VCC
RATINGS
2 ~ 8.5
2 ~ 7.5
UNIT
V
V
ELECTRICAL CHARACTERISTICS (Ta=25°C, Vcc=6V)
PARAMETER
AM Circuit Current
FM Circuit Current
FM Front End Voltage
Gain
FM Detection Output
Level
SW
TEST
CONDITIONS
SYMBOL CONDITIONS
POINT
1 2 3 4 5 6
ID1
A B A A A A
IA
No signal, AM
ID2
A B A A B A
IA
No signal, FM
GV1
A B A A B A
VA
VD1
A - - A B A
VD
VD2
A - - A B A
VD
THD1
A - - A B A
VD
IB1
A - - A B A
GV2
AM IF Voltage Gain
VIN1=40dBµV,100MHZ
MIN
TYP
MAX UNIT
-
3.5
7.0
10.0
14.0
mA
mA
32
39
46
dB
39
77.5
155
Vrms
-
24
32
dBμV
-
0.3
2.0
%
IM
VIN3=90dBµV,10.7 MHZ
(1 kHz,22.5kHz DEV)
VIN3 level at a point 3 dB
down from
VIN3=90dBµV,10.7 MHZ
(1 kHz,22.5kHz DEV)
VIN3=90dBµV,10.7 MHZ
(1 kHz,75kHz DEV)
VIN3=60dBµV,10.7 MHZ
1.8
3.5
7.0
mA
A A A A A A
VB
VIN3=60dBµV,1660 kHZ
15
22
29
dB
GV3
A A - A A A
VD
14
20
27
dBµV
AM Detection Output
Level
VD3
A A - A A A
VD
39
77.5
155
Vrms
AM Meter Current
IB2
A A - A A A
IM
1.3
3.0
7.0
mA
THD2
A A B B A A
VD
-
0.6
2.0
%
GV4
A - - - - B
VE
27
31.5
36
dB
THD3
A - - - - B
VE
-
0.3
2.5
%
VD4
A - - - - B
VE
8
15
22
dB
FM IF Knee Level
FM Detection Output
Distortion Factor
FM Meter Current
AM Front End Voltage
Gain
AM Detection Output
Distortion Factor
Audio Voltage Gain
Audio Distortion Factor
Muting Level
VIN3 w hen 455kHz
(1kHz, 30% MOD)
output is – 34dBm
VIN3=85dBµV,455kHZ
(1kHz, 30% MOD)
VIN3=85dBµV,455kHZ
(1kHz, 30% MOD)
VIN2=60dBµV,1660kHZ
(1kHz, 30% MOD),Vcc=7,8V
VIN3=60dBµV,10.7MHZ
VIN4=-30dBµV,1kHZ
Distortion factor for output of
50mVV
VIN3=60dBµV,10.7MHZ
VIN4=-20dBµ m,1kHZ
Muting level for 50 mW
output
VIN4=-20dBm,1kHZ
VIN3 OFF
0dBµV=1µV
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QW- R110-014.B
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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QW- R110-014.B
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