datasheet for TA8227APG-D12-H-T by Unisonic Technologies Company Limited

datasheet for TA8227APG-D12-H-T by Unisonic Technologies Company Limited

UNISONIC TECHNOLOGIES CO., LTD

TA8227AP

LINEAR INTEGRATED CIRCUIT

LOW FREQU EN CY POWER

AM PLI FI ER

̈

DESCRI PT I ON

The UTC

TA8227AP

is an audio power IC with built-in two channels developed for portable radio cassette tape recorder with power ON / OFF switch.

Thermal shut down protection circuit is built in.

̈

FEAT U RES

* Wide operating supply voltage: V

CC

=5~12V

* Low popping noise at power ON

* Best for supply voltage 9V

* Output power

P

OUT

=2.5W/CH at Vcc=9V, R

L

=4

Ω, f=1kHz, THD=10%

P

OUT

=3.0W/CH at Vcc=9V, R

L

=3

Ω, f=1kHz, THD=10%

* Soft Clip

* Built-in thermal shut-down protection circuit

* Stand-by switch

̈

ORDERI N G I N FORM AT I ON

Ordering Number

Lead Free Plating Halogen Free

Package Packing

TA8227APL-D12-H-T TA8227APG-D12-H-T DIP-12H Tube

TA8227APL-S20-T TA8227APG-S20-T SOP-20 Tube

www.unisonic.com.tw

Copyright © 2013 Unisonic Technologies Co., Ltd

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LINEAR INTEGRATED CIRCUIT

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PI N CON FI GU RAT I ON

V

CC2

OUT1

B.S.1

PRE-GND

NF1

IN1

1

2

3

12

11

10

V

CC1

OUT2

B.S.2

V

CC2

OUT1

B.S.1

PW-GND

PW-GND

3

4

1

2

PW-GND

5

6

7

16

15

14

4 9 RIPPLE

PW-GND

PRE-GND

8 13

5

8 NF2 NF1 9 12

6 7

IN2 IN1 10 11

FOR DIP-12H FOR SOP-20

20

19

18

17

V

CC1

OUT2

B.S.2

PW-GND

PW-GND

PW-GND

PW-GND

RIRPLE

NF2

IN2

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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LINEAR INTEGRATED CIRCUIT

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BLOCK DI AGRAM

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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LINEAR INTEGRATED CIRCUIT

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ABSOLU T E M AX I M U N RAT I N GS

(T

A

=25

°C)

Supply Voltage

Output Current (peak / CH)

Power Dissipation

Operating Temperature

Storage Temperature

V

CC

20 V

I

O(PEAK)

2.5 A

P

D

4.0

T

OPR

-25~+75

°C

T

STG

-55~+150

°C

̈

ELECT RI CAL CH ARACT ERI ST I CS

(T

A

=25

°C, V

CC

=9V, R

L

=4

Ω, R

G

=600

Ω, f=1kHz, unless otherwise specified)

PARAMETER SYMBOL

Quiescent Current I

CCQ

MIN UNIT

V

IN

=0

Output Power

Total Harmonic Distortion

Voltage Gain

Input Impedance

Output Noise Voltage

Ripple Rejection Ratio

Cross Talk

Input Offset Voltage

Standby Current

P

P

OUT

OUT

(1)

(2)

THD=10%

THD=10%, RL=3

2.0

2.5

3.0

W

THD P

OUT

=0.4W/CH

Gv1 Rf=120

Ω,V

OUT

=0.775Vrms (0 dBm) 43 45 47 dB

Gv2 Rf=0, =0.775Vrms (0 dBm)

R

IN eN

R.R.

C.T

Rg=10k

Ω,BW=20Hz ~20kHz

Rg=600

Ω, fripple=100Hz

Rg=600

Ω,V

OUT

=0.775Vrms (0 dBm)

56.5 dB

30 k

0.3 1.0 mVrms

-52

-50 dB dB

V6, V7

1stb Sw1:OFF

30

1

60

50 mV

A

̈

T Y P. DC V OLT AGE OF EACH T ERM I N AL (V

CC

=9 V , T

A

=2 5

°

C )

DC VOLTAGE (V) V

CC

4.5 8.7 GND 0.7 0.03

0.03

0.7 5.0 8.7 4.5 V

CC

̈

APPLI CAT I ON I N FORM AT I ON AN D APPLI CAT I ON M ET H OD

1. Adjustment of voltage gain

The voltage gain Gv is obtained as follows by R1, R2 and Rf in Fig.1

G

V

=

20 log

R f

R

+

f

R

+

1

+

R

1

R

2

When Rf=0

When Rf=120

Gv=56.5 dB (Typ.)

Gv=45 dB (Typ.)

By increasing Rf, reduction of Gv is possible. However, since the feedback increase is liable to produce oscillation, it is recommended to use this at 40dB or over.

INPUT

6/7

(10/11)

C

NF

47μF

+

R f

5/8

(9/12)

R1

45Ω

+

-

Ch-2

R2

30kΩ

OUTPUT

2/11

(2/19)

( ): For SOP-20 Package

Fig.1

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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APPLI CAT I ON I N FORM AT I ON AN D APPLI CAT I ON M ET H OD(Cont .)

2. Thermal shut-down circuit

The thermal shut-down circuit is built in for the purpose of preventing the destruction of IC due to the abnormal temperature rise when the heat radiation is insufficient.

The operation temperature is set at radiation Fin temperature 175

°C (Typ.)

At this temperature or over the bias is interrupted to prevent the destruction of IC.

3. Input stage

The input circuit of this IC is as shown in fig.2. PNP Tr : Q1 is provided in the input circuit so as to make its usage possible without the input coupling capacitor.

However, at pin 6 and pin 7, max 60mV offset voltage is produced.

Application after checking volume slide noise is recommended.

For cutting the volume slide noise, insert the input capacitor: CIN in series to interrupt the DC component.

4. Oscillation preventive measures

For oscillation preventive capacitor C6 and C7 between the output terminal and GND, it is recommended to use polyester film capacitor having good characteristics for temperature and for high frequency.

Since the characteristics of the capacitor is liable to be influenced by the temperature, use this capacitor after the temperature test to check the oscillation allowance.

In addition, as the position of the electrolytic capacitor has a remarkable influence on the oscillation, connect C10 to Vcc at the nearest possible position from power GND.

At using this application wth the voltage gain reduced, oscillation is liable to be produced. Apply the capacitor after checking enough for its capacity, type and mounting position.

5. Power ON / OFF switch

There is power ON / OFF switch at Pin1. However, output power is changed by Pin1 supply voltage when Pin1 supply voltage is not same Pin12 supply voltage, after referring to attached date, select Pin1 supply voltage.

6. Input voltage

When the excessive signal is input, turning-up is produced in the clip waveform. The turning-up point is

V

IN

=300mVrms (Typ.) : V

CC

=9V, RL=4

Ω, f=1kHz : Enough care must be taken for this phenomenon.

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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T EST CI RCU I T

Note 1: This IC can be used without coupling capacitor (C

IN

). If volume slide noise noise occurred by input offset voltage is undesirable, it needs to use the capacitor (C

IN

).

Note 2: The condenser between the pin4 and the GND (C11) is for reducing pop noise when the power ON / OFF switch (SW1) is set to ON / OFF.

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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T Y PI CAL CH ARACT ERI ST I CS

I

CCQ2

, V

2

, V

11

V

CC2

12

10

V

CC1

=12V

V

IN

=0

Ta=25°C

8

I

CCQ

12

10

30

10

THD P

OUT

8 5

3

V

CC1

=9V

R

L

=4

F=1kHz

R

NF

=120

Ta=25°C

6V

7V

8V

6

6

V

CC2

=5V

9V

1

4

V

2

, V

11

4

0.5

0.3

2

2

0

0 2 4 6 8 10 12

14

0

Supply Voltage, V

CC2

(V)

0.1

0.01

0.03

0.1

0.3

1

Output Power, P

OUT

(W)

3

10

THD Ta

0.5

0.4

0.3

0.2

0.1

0

-40 -20 0 20 40 60 80

100

Ambient Temperature, Ta (°C)

I

CCQ2

, V

2

, V

11

V

CC2

50

40

30

V

2

, V

11

20

I

CCQ

10

0

-40 -20 0 20 40 60

Ambient Temperature, Ta (°C)

80

I

CCQ2

, V

OUT

V

CC

80

60

40

20

V

OUT

I

CCQ

0

0

5 10 15

Supply Voltage, V

CC2

(V)

20

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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T Y PI CAL CH ARACT ERI ST I CS(Cont .)

THD P

OUT

100

30

V

CC

=9V

R

L

=4

R

NF

=120

100

30 f=1kHz

R

L

=4

R

NF

=120

THD P

OUT

10

10

3

3

V

CC

=6V f=10kHz

1

1

9V

0.3

1kHz

100Hz

0.3

0.1

0.01

0.1

0.3

1 3

Output Power, P

OUT

(W)

10 30

0.1

0.01

0.1

0.3

1 3

Output Power, P

OUT

(W)

10

G

V

- f

80

60

V

CC

=9V

R

L

=4

R

NF

=120

40

0

-20

V

CC

=9V

R

L

=4

Rg=600

R

NF

=120

V

OUT

=0.775Vrms

(0dBm)

C.T. - f

-40

20

0

30 100 1k

Frequency, f (Hz)

10k

R.R. - Rg

0

-20

V

CC

=9V

R

L

=4

R

NF

=120 f=100Hz

100k

-60

-80

30 100 1k

Frequency, f (Hz)

10k 100k

-40

-60

-80

30 100 1k 10k

Signal Source Resistance Rg (

Ω

)

100k

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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T Y PI CAL CH ARACT ERI ST I CS(Cont .)

V

CC

- P out

4

3

6

5 f = 1kHz

THD = 10%

R

L

= 6Ω

2

1

0

0 5 7 9 11 13 15

Supply Voltage V

CC

(V)

17 19

V

CC

= 12V

P

D

- P out

3

2

5

4

9V

R

L

= 4Ω f = 1kHz

1

0

0 1 2 3 4 5

Output Power Pout (W)

6 7

UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw

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LINEAR INTEGRATED 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 www.unisonic.com.tw

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