TA8229 [UTC]
LOW FREQUENCY POWER AMPLIFIER; 低频功率放大器
| 型号： | TA8229 |
| 厂家： | 
Unisonic Technologies |
| 描述： | LOW FREQUENCY POWER AMPLIFIER |
| 文件： | 总9页 (文件大小：180K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTCTA8229 LINEAR INTEGRATED CIRCUIT
LOW FREQUENCY POWER
AMPLIFIER
DESCRIPTION
The UTC TA8229 is an audio power IC with built-in
two channels developed for portable radio cassette tape
recorder with power ON/OFF switch.
Because of the parts reduction and SIP (Single Inline
HSIP-15
Package), space merit is remarkable.
Thermal shut down protection circuit is buit in.
FEATURES
* High Power
: Pout (1) = 2.5W (Typ.)
(VCC = 9V, RL = 4Ω, f = 1kHz, THD = 10%)
: Pout (2) = 4.6W (Typ.)
(VCC = 12V, RL = 4Ω, f = 1kHz, THD = 10%)
* Low Popping Noise at Power ON
* Small Quiescent Current
HSIP-14
: ICCQ = 21mA (Typ.) (VCC = 15V, Vin = 0)
* Soft Clip
* Built-in Thermal Shut Down Protection Circuit
* Best for Supply Voltage 9V, 12V
* Operation Supply Voltage Range : VCC (opr) = 6 ~ 15V
(Ta = 25℃)
PIN DESCRIPTION
PIN NO.
PIN NAME
HSIP-14
HSIP-15
1
2
3
NC
1
2
3
B.S. 2
OUT 2
Vcc 1
4
4
5
5
6
OUT 1
B.S.1
6
7
7
8
Power-GND
Vcc 2
8
9
10
11
12
13
14
9
RIPPLE
NF1
IN 1
IN 2
NF 2
Pre-GND 1
Pre-GND 2
10
11
12
13
14
15
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
HSIP-15
VCC2
8
VCC1
4
6
5
B.S.1
OUT1
IN1
11
10
+
-
Ch-1
NF1
45Ω
30kΩ
BIAS CIRCUIT
THERMAL SHUT
DOWN PROTECTION
CIRCUIT
Power-GND
RIPPLE
9
7
IN2
12
13
+
Ch-2
-
3
2
OUT2
B.S.2
NF2
45Ω
30kΩ
14
15
Pre-GND1.
Pre-GND2.
1
pin : NC
ABSOLUTE MAXIMUM RATINGS (Ta = 25℃)
PARAMETER
Supply Voltage
SYMBOL
VCC
RATINGS
20
UNIT
V
Output Current (Peak/CH)
Power Dissipation
Operating Temperature
Storage Temperature
Note: Derated above Ta = 25℃ in the proportion of 120mW/℃.
IO (peak)
PD (Note)
Topr
2.5
15.0
-20 ~ 75
-55 ~ 150
A
W
℃
℃
Tstg
UTC UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(VCC=9V, RL=4Ω, Rg=600Ω, f=1kHz, Ta=25℃, Rf=120Ω, unless otherwise specified.)
PARAMETER
Quiescent Current
Output Power
SYMBOL
ICCQ
Pout (1)
Pout (2)
THD
GV (1)
GV (2)
RIN
TEST CONDITIONS
MIN
TYP
21
2.5
4.6
0.2
45
56.5
30
0.3
-52
MAX UNIT
Vin = 0
45
mA
THD = 10%
THD = 10%, VCC = 12V
Pout = 0.4W/ch
Rf = 120Ω, Vout = 0.775Vrms (0dBm)
Rf = 0, Vout = 0.775Vrms (0dBm)
2.0
W
Total Harmonic Distortion
Voltage Gain
1.0
47
%
43
dB
Input Resistance
Output Noise Voltage
Ripple Rejection Ratio
Cross Talk
kΩ
mVrms
dB
Vno
R.R.
Rg = 10kΩ, BW = 20Hz ~ 20kHz
Rg = 600Ω, fripple = 100kHz
1.0
60
Rg = 600Ω, amp1
2
C.T.
-50
dB
Vout = 0.775Vrms (0dBm)
Input Offset Voltage
Stand-by Current
V11, V12
IOFF
30
1
mV
µA
SW1
OFF
APPLICATION INFORMATION AND APPLICATION METHOD
1. Adjustment of voltage gain
The voltage gain GV is obtained as follows by R1, R2 and Rf in Fig.1.
Rf + R1 + R2
GV = 20 log
Rf + R1
When Rf = 0Ω, GV = 56.5dB (Typ.)
When Rf = 120Ω, GV = 45dB (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
OUTPUT
11/12
10/13
+
-
3/5
AMP
Rf
R1
45Ω
R2
+
CNF
-
47µF
30kΩ
Fig.1
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℃(Typ.). At this temperature or over the bias is
interrupted to prevent the destruction of IC.
UTC UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
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 11 and 12 , max 60 mV 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.
OUTPUT
30kΩ
3/ 5
Q2 Q3
INPUT
-
To DRIVER
45Ω
11/12
Q1
CIN
30kΩ
14/15
To BIAS
GND
NF
10/13
Rf
+
47µF
-
Fig. 2
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 with the voltage gin reduced, oscillation is liable to be produced. Apply the capacitor after
checking enough for its capacity, type and mounting position.
(*) As the oscillation allowance varies according to the printed pattern layout, the standard printed board of
TOSHIBA is recommended to be referred to design it.
5. Power ON/OFF switch
There is power ON/OFF switch at ⑧pin. However, output power is changed by ⑧pin supply voltage when ⑧pin
supply voltage is not same ④pin supply voltage, after referring to attached date, select ⑧pin supply voltage.
6. Input voltage
When the excessive signal is input, turning-up is produced in the clip waveform.
The turning-up point is Vin = 300mVrms (Typ.): VCC = 9V, RL = 4Ω, f = 1kHz: Enough care must be taken for this
phenomenon.
UTC UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
VCC1
SW1
+
+
C11 (*2)
100µF
C10
-
-
1000µF
VCC2
8
4
B.S.1
6
5
(*1)CIN
-
+
IN1
11
C4
-
IN-1
+
-
100µF
C8
OUT1
-
Ch-1
OUT-1
NF1
10
Rf1
1000µF
45Ω
120Ω
30kΩ
C6
+
-
RL
C1
0.15µF
47µF
BIAS CIRCUIT
RIPPLE
Power-GND
THERMAL SHUT
9
7
DOWN PROTECTION
CIRCUIT
+
-
C3
47µF
(*1)CIN
IN2
-
12
IN-2
+
C9
-
OUT2
Ch-2
-
3
2
OUT-2
NF2
13
120Ω
-
1000µF
C5
45Ω
100µF
+
C7
0.15µF
RL
+
C2
-
47µF
B.S.2
30kΩ
14
15
Pre-GND1.
Pre-GND2.
1
pin : NC
(*1) This IC can be used without coupling capacitor (CIN).
If volume slide noise occurred by input offset voltage is undesirable, it needs to use the capacitor (CIN).
(*2) The condenser between the ⑧pin and the GND (C11) is for reducing POP noise when the power ON/OFF
switch (SW1) is set to ON/OFF.
UTC UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUITS
ICCQ, V3, V5 - VCC
GV - f
80
60
40
20
0
80
70
VCC=9V
RL=4Ω
RL=4Ω
Vin = 0
RNF =120Ω
Ta = 25℃
Ta = 25℃
60
50
40
30
20
12
10
8
V3, V5
ICCQ
6
4
2
10
0
16
1k
10k
100k
0
8
12
20
30
100 300
3k
30k
4
SUPPLY VOLTAGE, VCC (V)
FREQUENCY, f (Hz)
THD - Pout
THD - Pout
VCC=12V
VCC=9V
40 RL=4Ω
40 RL=4Ω
RNF =120Ω
RNF =120Ω
Ta = 25℃
20
10
20
10
Ta = 25℃
4
4
2
1
2
1
f = 10kHz
100Hz
f = 10kHz
100Hz
0.4
0.2
0.1
0.4
0.2
0.1
1kHz
1kHz
0.04
0.04
0.04
0.1 0.2 0.4
1
2
4
2
0.04
0.1 0.2 0.4
1
4
OUTPUT POWER, Pout (W)
OUTPUT POWER, Pout (W)
UTC UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
THD - Pout
THD - Pout
f=1kHz
VCC=15V
RL=4Ω
40 RL=4Ω
40
20
10
RNF =120Ω
RNF =120Ω
Ta = 25℃
20
10
Ta = 25℃
4
4
2
1
15V
9V 12V
2
1
VCC = 6V
f = 10kHz
100Hz
0.4
0.2
0.1
0.4
0.2
0.1
1kHz
0.04
0.04
0.04
0.1 0.2 0.4
1
2
4
2
0.04
0.1 0.2 0.4
1
4
OUTPUT POWER, Pout (W)
OUTPUT POWER, Pout (W)
R.R. - f
R.R. - Rg
VCC=9V
VCC=9V
-10
-10
-20
-30
RL=4Ω
RL=4Ω
-20
RNF =120Ω
RNF =120Ω
Rg = 600Ω
f = 1kHz
-30
-40
-50
-60
Vripple = 0.775Vrms (0dBm)
Ta = 25℃
Vripple = 0.775Vrms (0dBm)
Ta = 25℃
-40
-50
-60
-70
-80
-70
-80
1k
10k
100k
1k
10k
100k
30
100 300
3k
30k
30
100 300
3k
30k
SIGNAL SOURCE RESISTANCE, Rg (Ω)
FREQUENCY, f (Hz)
C.T. - f
C.T. - Rg
0
-10
-20
-30
VCC=9V
VCC=9V
-10
-20
RL=4Ω
RL=4Ω
RNF =120Ω
Rg = 600Ω
f = 1kHz
RNF =120Ω
Ta = 25℃
-30
-40
-50
-60
Vripple = 0.775Vrms (0dBm)
Ta = 25℃
-40
-50
-60
-70
-80
-70
-80
1k
3k
10k
100k
1k
3k
10k
100k
30
100 300
30k
30
100 300
30k
FREQUENCY, f (Hz)
SIGNAL SOURCE RESISTANCE, Rg (次)
UTC UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
Vno - Rg
ICCQ2, V2, V10 - VCC2
1.6
1.4
1.2
1.0
12
10
VCC=9V
VCC1 = 12V
Vin = 0
RL=4Ω
ICCQ
RNF =120Ω
BW = 20~20kHz
Ta = 25℃
Ta = 25℃
8
6
4
0.8
0.5
0.4
V2, V10
2
0
0.2
0
10k
10
30
100 300
1k
3k
30k 100k
8
12
14
0
6
2
4
SUPPLY VOLTAGE, VCC2 (V)
SIGNAL SOURCE RESISTANCE, Rg (Ω)
THD - Pout
THD - Ta
30
10
VCC=9V
VCC1 = 9V
RL = 4Ω
0.5
0.4
0.3
0.2
0.1
0
RL=4Ω
Pout = 0.4W
f = 1kHz
f = 1kHz
RNF =120Ω
Ta = 25℃
5
3
VCC2 = 5V
9
7 8
6
1
0.5
0.3
0.1
60
0.01 0.03
0.1
0.3
1
3
10
40
80
100
-40
20
-20
0
OUTPUT POWER, Pout (W)
AMBIENT TEMPERATURE, Ta (℃)
ICCQ, V3, V5 - Ta
PD - Pout
VCC=9V
VCC=9V
VCC=12V
50
40
30
20
10
0
5
4
3
2
1
0
10
RL=4Ω
RL=4Ω
Vin = 0
Pout = 0.4W
f = 1kHz
8
6
4
2
9
V3, V5
ICCQ
5
60
AMBIENT TEMPERATURE, Ta (℃)
4
6
7
40
80
0
3
-40
0
20
1
2
-20
OUTPUT POWER, Pout (W)
UTC UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R107-028,A
UTCTA8229 LINEAR INTEGRATED CIRCUIT
PD - Ta
20
INFINITE HEAT SINK 15.0W
5.0℃/W
10
0
NO HEAT SINK
2.27W
55℃/W
100
AMBIENT TEMPERATURE, Ta (℃)
150
0
50
75
25
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.
UTC UNISONIC TECHNOLOGIES CO., LTD.
9
QW-R107-028,A
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