CXA1191-D28-T_技术文档

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: l_D=5.3mA (Typ.)

–AM: l_D=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

Tube

Tape Reel

Tube

www.unisonic.com.tw

1of 7

QW- R110-014.B

CXA1191

LINEAR INTEGRATED CIRCUIT

PIN CONFIGURATIONS

VOLTAGE(V)

V_CC=3V V_CC=6V

1

DESCRIPTION

SYMBOL

MUTE

EQUIVALENT CIRCUIT

FM

AM

0

FM

AM

0

Phase-shift circuit, Connect

ceramic discriminator.

2

3

FM DISCRI 2.18

2.7

1.5

4.88

3.0

5.43

3.0

Vcc

Negative feedback pin

NF

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

5

AM local oscillation circuit

AM OSC

1.25

6

8

AFC variable capacitor pin

Regulator pin 1.25V (Typ.)

AFC

1.25

Note

1.25

Note

1.25

REG OUT

7

9

FM local oscillation circuit

Connect FM RF tuning coil.

FM OSC

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

11

13

NC

GND

(FE GND)

0

UNISONIC TECHNOLOGIES CO., LTD

2 of 7

QW- R110-014.B

www.unisonic.com.tw

CXA1191

LINEAR INTEGRATED CIRCUIT

PIN CONFIGURATIONS(Cont.)

VOLTAGE(V)

V_CC=3V V_CC=6V

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

0.88

0

10K

15

GND

16

16 Input pin of AM IF

AM IF IN

0

2K

17 Input pin of FM IF

FM IF IN

NC

0.34

0

0.88

0

18

19

1.25V

Meter drive circuit

19

METER

1.6

4.5

(For tuning indicator)

N

GND

20

GND

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

1.0

1.25

1.0

21

GND

11K

24

24 Power amplifier input pin

AF IN

0

GND

RIPPLE

FILTER

25 Ripple filter

2.71

5.4

UNISONIC TECHNOLOGIES CO., LTD

3 of 7

QW- R110-014.B

www.unisonic.com.tw

CXA1191

LINEAR INTEGRATED CIRCUIT

PIN CONFIGURATIONS(Cont.)

VOLTAGE(V)

V_CC=3V V_CC=6V

6

DESCRIPTION

Power supply pin

SYMBOL

EQUIVALENT CIRCUIT

FM

AM

3.0

0

FM

AM

6.0

0

V_CC

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.

UNISONIC TECHNOLOGIES CO., LTD

4 of 7

QW- R110-014.B

www.unisonic.com.tw

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

UNISONIC TECHNOLOGIES CO., LTD

5 of 7

QW- R110-014.B

www.unisonic.com.tw

CXA1191

LINEAR INTEGRATED CIRCUIT

ABSOLUTE MAXIMUM RATINGS (T_a=25°C)

PARAMETER

SYMBOL

RATINGS

9

UNIT

V

Supply Voltage

V_CC

DIP-28

1000

mW

°C

Power Dissipation

P_D

SOP-28

700

Junction Temperature

Operating Temperature

Storage Temperature

T_J

+150

T_OPR

T_STG

-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

V_CC

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

I_D1

I_D2

A B A A A A

A B A A B A

I_A

No signal, AM

No signal, FM

-

3.5 10.0 mA

7.0 14.0 mA

G_V1

V_D1

A B A A B A VA V_IN1=40dBµV,100MH_Z

_IN3=90dBµV,10.7 MH_Z

32

39

46

dB

FM Detection Output

Level

V

A - - A B A V_D

77.5 155 Vrms

(1 kHz,22.5kHz DEV)

V_IN3level at a point 3 dB

down from

FM IF Knee Level

V_D2

A - - A B A V_D

-

24

32 dBμV

V

_IN3=90dBµV,10.7 MH_Z

(1 kHz,22.5kHz DEV)

_IN3=90dBµV,10.7 MH_Z

(1 kHz,75kHz DEV)

I_MV_IN3=60dBµV,10.7 MH_Z

FM Detection Output

Distortion Factor

FM Meter Current

AM Front End Voltage

Gain

V

THD1 A - - A B A V_D

-

0.3

3.5

22

2.0

7.0

29

%

mA

dB

I_B1

A - - A B A

1.8

15

G_V2

A A A A A A V_BV_IN3=60dBµV,1660 kH_Z

V_IN3w hen 455kHz

A A - A A A V_D(1kHz, 30% MOD)

output is – 34dBm

AM IF Voltage Gain

G_V3

14

20

27 dBµV

AM Detection Output

Level

V

_IN3=85dBµV,455kH_Z

(1kHz, 30% MOD)

_IN3=85dBµV,455kH_Z

(1kHz, 30% MOD)

_IN2=60dBµV,1660kH_Z

(1kHz, 30% MOD),Vcc=7,8V

_IN3=60dBµV,10.7MH_Z

V_D3

I_B2

THD2 A A B B A A V_D

G_V4A - - - - B V_E

A A - A A A V_D

39

1.3

-

77.5 155 Vrms

V

AM Meter Current

A A - A A A I_M

3.0

0.6

7.0

2.0

36

mA

%

AM Detection Output

Distortion Factor

V

Audio Voltage Gain

27

31.5

dB

V_IN4=-30dBµV,1kH_Z

Distortion factor for output of

50mVV

Audio Distortion Factor

THD3 A - - - - B V_E

-

0.3

15

2.5

22

%

V_IN3=60dBµV,10.7MH_Z

V_IN4=-20dBµ m,1kH_Z

Muting level for 50 mW

output

Muting Level

V_D4

A - - - - B V_E

8

dB

V_IN4=-20dBm,1kH_Z

V_IN3OFF

0dBµV=1µV

UNISONIC TECHNOLOGIES CO., LTD

6 of 7

QW- R110-014.B

www.unisonic.com.tw

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.

UNISONIC TECHNOLOGIES CO., LTD

7 of 7

QW- R110-014.B

www.unisonic.com.tw


型号：	CXA1191-D28-T
厂家：	Unisonic Technologies
描述：	FM/AM Radio FM / AM收音机
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

CXA1191-D28-T [UTC]

相关型号：

CXA1191-S28-R

CXA1191-S28-T

CXA1191G-D28-T

CXA1191G-S28-R

CXA1191G-S28-T

CXA1191L-D28-T

CXA1191L-S28-R

CXA1191L-S28-T

CXA1191_09

CXA1191_15

CXA1198AP

CXA1201