S1T8602B01-S0B0 [SAMSUNG]
LOW VOLTAGE AUDIO AMPLIFIER; 低电压音频放大器
| 型号： | S1T8602B01-S0B0 |
| 厂家： | 
SAMSUNG |
| 描述： | LOW VOLTAGE AUDIO AMPLIFIER |
| 文件： | 总8页 (文件大小：70K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LOW VOLTAGE AUDIO AMPLIFIER
INTRODUCTION
S1T8602B
8- DIP- 300
The S1T8602B is the audio power amplifier available for low voltages.
S1T8602B supplies differential outputs for maximizing output swing at
low voltages. S1T8602B doesn’t need coupling capacitors to the
speaker. The gain of this amp is controlled easily by two external
resistors.
8- SOP- 225
FEATURES
•
•
•
•
Wide Supply Voltage (2 ~ 16V)
Low Quiescent Supply Current (I = 2.7mA : Typ)
CC
Easy Gain Control
Medium Output Power
P = 250mW at V = 6V, R = 32W, THD = 10%
O
CC
L
•
•
•
•
Minimum External Parts
Various Load Impedance Range (8W ~ 100W)
Low Distortion
Mute Function (l = 65mA: Typ)
CC
ORDERING INFORMATION
Device
Package
Operating Temperature
S1T8602B01-D0B0
S1T8602B01-S0B0
8- DIP- 300
8- SOP- 225
- 20°C ~ +70°C
1
S1T8602B
LOW VOLTAGE AUDIO AMPLIFIER
BLOCK DIAGRAM
INPUT(-)
2
1
-
OUTPUT1
3
Amp1
INPUT(+)
+
R
R
-
6
7
Amp2
OUTPUT2
MUTE
+
4
BIAS CIRCUIT
Vcc
8
5
RIPPLE
GND
REJECTION
PIN CONFIGURATION
1
2
3
4
8
7
6
5
INPUT(+)
INPUT(-)
OUTPUT1
Vcc
RIPPLE REJECTION
MUTE
S1T8602B
OUTPUT2
GND
2
LOW VOLTAGE AUDIO AMPLIFIER
PIN DESCRIPTION
S1T8602B
Pin No
Symbol
Description
Analog Ground for the amplifiers. A 1.0mF capacitor at this pin (with a 5.0mF capacitor at
pin 8) provides 52dB (Typ) of power supply rejection. Turn-on time of the circuit is affected
by the capacitor on this pin. This pin can be used as an alternative input.
1
Input (+)
Amplifier input. The input capacitor and resistor set low frequency roll-off and input
impedance. The feedback resistor is connected between this pin and output1.
2
Input (- )
The output of Amplifier 1. DC Level is (V — 0.7V)/2.
3
4
5
6
Output 1
CC
DC supply voltage (+2.0 — + 16V) is applied to this pin.
Ground pin.
V
CC
GND
°
The output of Amplifier 2. This signal is equal in amplitude, but 180 out of phase with that
Output 2
at output1. The DC level is (V — 0.7V)/2.
CC
This pin can be used to power down the IC to conserve power or for muting, or both.
When at a logic Low (0 to 0.8 volts), the S1T8602B is enabled for normal operation. When
7
Mute
at a logic High (2.0 to V volts), the IC is disabled. If Mute is open, that is equivalent to a
CC
logic Low.
A capacitor at this pin increases power supply rejection, and affects turn-on time. This pin
can be left open if the capacitor at pin 1 is sufficient.
8
Ripple Rejection
ABSOLUTE MAXIMUM RATINGS
Characteristic
Supply Voltage
Symbol
Vale
- 1.0 ~ + 18
± 250
Unit
V
V
CC
Output Current (output pin)
I
mA
V
O
Maximum Voltage (input, Ripple rejection, Mute pin)
Applied Output Voltage (output pin) when disabled
Junction Temperature
V
- 1.0 ~ V + 1.0
CC
I (MAX)
V
- 1.0 ~ V + 1.0
V
O
CC
T
- 55 ~ + 140
°C
J
3
S1T8602B
LOW VOLTAGE AUDIO AMPLIFIER
RECOMMENDED OPERATING CONDITIONS
Characteristic
Supply Voltage
Symbol
Min.
+2.0
8
Typ.
Max.
+16
100
Unit
V
V
-
-
-
-
-
-
CC
Load Impedance
Z
W
L
Peak Load Current
I
- 200
0
± 200
46
mA
dB
V
L (PK)
Differential Gain (5KHz Bandwidth)
Voltage at Mute (Pin 7)
Ambient Temperature
DG
V
V
0
V
CC
I (MUTE)
Ta
- 20
470
°C
ELECTRICAL CHARACTERISTIC
(V = 6V, Ta = 25°C, unless otherwise noted)
CC
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
DC ELECTRICAL CHARACTERISTICS
Operating Current (RL = 0)
Output Voltage (output pin)
I
V
V
= 3.0V, Mute = 0.8V
= 16.0V, Mute = 0.8V
-
2.7
3.3
4.0
5.0
mA
CC
CC
CC
V
= 3.0V, Mute = 2.0V
-
65
100
mA
CC
V
RL = 16W
R1 = 75kW
V
V
V
= 3.0V
= 6.0V
= 12.0V
1.0
1.15
2.65
5.65
1.25
V
O
CC
CC
CC
Output Offset Voltage
Output High Level
V
V
V
I
V
= 6.0V, R = 75kW, R = 32W
CC f L
- 30
0
+30
mV
V
OO
OH
OL
2.0V £ V £ 16V, I = -75mA
-
-
-
V
- 1.0
-
-
CC
out
CC
Output Low Level
2.0V £ V £ 16V, I = 75mA
CC out
0.16
V
Input Bias Current (pin 2)
Equivalent Resistance
-
- 100
-200
nA
kW
BIAS
R
pin 1
pin 8
100
18
150
25
220
40
EQ
Input Low Voltage
V
V
-
-
-
-
0.8
-
V
V
IL (MUTE)
IH (MUTE)
Mute
Input High Voltage
Input Resistance
2.0
50
-
R
V
= Mute = 16V
90
175
kW
I (MUTE)
CC
AC ELECTRICAL CHARACTERISTICS
Open Loop Gain (Amp 1)
Close Loop Gain (Amp 2)
Output Power
G
G
P
-
80
-
-
+0.35
-
dB
dB
V (AMP1)
V (AMP2)
f = 1.0kHz, R = 32W
- 0.35
0
-
L
V
V
V
= 3.0V, R = 6W, THD £ 10%
= 6.0V, R = 32W, THD £ 10%
= 12V, R = 100W, THD £ 10%
55
250
400
mW
O
CC
CC
CC
L
L
L
4
LOW VOLTAGE AUDIO AMPLIFIER
S1T8602B
ELECTRICAL CHARACTERISTIC (Continued)
(V = 6V, Ta = 25°C, unless otherwise noted)
CC
Characteristic
Symbol
THD
Test Conditions
Min.
Typ.
Max.
Unit
Total Harmonic Distortion
(f = 1.0kHz)
V
V
V
= 6.0V, R = 32W, P =125mW
-
0.5
0.5
0.6
1.0
%
CC
CC
CC
L
O
£3.0V, R = 8W, P = 20mW
L
O
£12V, R = 32W, P = 200mW
L
O
Gain Bandwidth Product
GBW
-
-
1.5
-
-
MHz
dB
Power Supply Rejection
PSRR
C = ¥ , C = 0.01mF
50
1
2
(V = 6.0V, DV = 3.0V)
C
=0.1mF, C =0, f=1.0kHz
12
52
CC
CC
1
2
C = 1.0mF, C = 5.0mF, f = 1.0kHz
1
2
Muting
G
Mute = 2.0V, 1.0Khz £ f £ 20kHz
-
> 70
-
dB
V (MUTE)
5
S1T8602B
LOW VOLTAGE AUDIO AMPLIFIER
APPLICATION CIRCUIT
Vcc
Mute
Rf
4
7
0.1mF
Ri
Audio
2
1
3
6
Input
Speaker
S1T8602B
8
5
+
1mF
+
5mF
Figure 1.
Vcc
Mute
75K
4
7
0.1mF
Audio
Input
2
1
3
6
Speaker
S1T8602B
3K
8
5
+
+
0.1mF
5mF
Figure 2.
6
LOW VOLTAGE AUDIO AMPLIFIER
S1T8602B
Vcc(1.0 ~8.0V)
Vcc
75K
4
7
0.1mF
3K
4.7K
Audio
Input
2
1
3
6
S1T8602B
20K
Speaker
Mute
8
5
10K
20K
VEE( -1.0 ~ -8.0V)
Figure 3.
Vcc
Mute
75K
4
7
0.1mF
Audio
Input
2
1
3
6
Speaker
S1T8602B
8
5
503
503
+
m
F
5
5.1K
5.1K
Figure 4.
7
S1T8602B
LOW VOLTAGE AUDIO AMPLIFIER
Vcc
Mute
101
100
100K
100K
4
7
2
1
3
6
S1T8602B
Speaker
0.1mF
Audio
Input
8
5
503
503
+
5mF
5.1K
5.1K
Figure 5.
8
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