MC34119_15 [UTC]
LOW POWER AUDIO AMPLIFIER;
| 型号： | MC34119_15 |
| 厂家： | 
Unisonic Technologies |
| 描述： | LOW POWER AUDIO AMPLIFIER 放大器 |
| 文件： | 总8页 (文件大小：242K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
MC34119
LINEAR INTEGRATED CIRCUIT
LOW POWER AUDIO
AMPLIFIER
DESCRIPTION
The UTC MC34119 is a low power audio amplifier IC intended for
the telephone applications, such as in speakerphones. It provides
differential speaker outputs to maximize output swing at low supply
voltages. Coupling capacitor to the speaker is not required. Open
loop gain is 80dB, and the closed loop gain is set with two external
resistors. The Mute pin permits powering down and/or muting the
input signal.
FEATURES
* Wide operating supply voltage: VCC=2V~16V
* Low quiescent supply current (ICC=2.7mA, typ)
* Medium power output over 250mW at VCC=6V,
RL=32Ω, THD＜10%
* Load impedance range (8Ω~100Ω)
* Low total harmonic distortion (0.5% typ)
* Mute function (ICC=65μA, typ)
* Minimum number of external parts required
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
MC34119L-D08-T
MC34119L-S08-R
MC34119L-S08-T
MC34119L-P08-R
MC34119L-P08-T
MC34119G-D08-T
MC34119G-S08-R
MC34119G-S08-T
MC34119G-P08-R
MC34119G-P08-T
DIP-8
SOP-8
Tube
Tape Reel
Tube
SOP-8
TSSOP-8
TSSOP-8
Tape Reel
Tube
www.unisonic.com.tw
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Copyright © 2012 Unisonic Technologies Co., Ltd
QW-R107-038,H
MC34119
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO. PIN NAME
DESCRIPTION
This pin can be used to power down the IC to converse power, or for muting, or both. When
at a logic “LOW” (less than 0.8V), the IC is enabled for normal operation. When at a logic
“HIGH” (2V to VCC), the IC is disabled. If Mute is open, that is equivalent to a logic “LOW”.
A capacitor at this pin increase power supply rejection, and affects turn-on time. This pin
1
2
3
4
Mute
Ripple
Rejection can be left open if the capacitor at pin 3 is sufficient.
Analog Ground for the amplifiers. A 1μF capacitor at this pin (with a 5μF capacitor at pin 2)
Input(+) 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.
Amplifier input. The input capacitor and resistor set low frequency roll-off and input
Input(-)
impedance. The feedback resistor is connected between this pin and output 1.
5
6
7
Output 1 Amplifier output 1. The DC level is about (VCC~0.7V)/2.
VCC
DC supply voltage is applied to this pin (VCC=2~16V).
Ground pin.
GND
Amplifier output 2. This signal is equal in amplitude, but 180°out of phase with that output 1,
the DC level is about (Vcc~0.7V)/2.
8
Output 2
UNISONIC TECHNOLOGIES CO., LTD
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MC34119
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
IN-
4
3
5
OUT1
Amp 1
IN+
8
1
OUT2
MUTE
VCC
6
Bias
2
7
RR
GND
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MC34119
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (TA=25°C )
PARAMETER
SYMBOL
VCC
RATINGS
-1~+18
±250
UNIT
V
Supply Voltage
Output Current
IOUT
mA
V
Maximum Input, Ripple Rejection, Mute Pin Voltage
Applied Output Voltage (Output Pin When Disabled)
Junction Temperature
VIN
-1~+1
-1~+1
VOUT
TJ
V
+125
°C
°C
°C
Operating Temperature
TOPR
TSTG
-20 ~ +85
-40 ~ +150
Storage Temperature
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 OPERATION CONDITIONS (TA=25°C)
PARAMETER
SYMBOL
VCC
RATINGS
2~16
UNIT
V
Supply Voltage
Load Impedance
Peak Load Current
ZL
8~100
±200
Ω
IL(PEAK)
ΔGV
VI(MUTE)
Ta
mA
dB
V
Differential Gain (5KHz Bandwidth)
Voltage at Mute
0~46
0~VCC
Ambient Temperature
-20~+70
°C
ELECTRICAL CHARACTERISTICS (VCC=6V, TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
DC PARAMETER
VCC=3V, Mute=0.8V
2.7
3.3
65
4
5
mA
mA
μA
V
Operating Current
ICC
VCC=16V, Mute=0.8V
VCC=3V, Mute=2V
100
RL=16Ω, R1=75KΩ, VCC=3V
1
1.15 1.25
2.65
Output Voltage
VOUT RL=16Ω, R1=75KΩ, VCC=6V
RL=16Ω, R1=75KΩ, VCC=12V
V
5.65
V
Output Offset Voltage
Output High Level
Output Low Level
Input Bias Current
VO(OFF) VCC=6V, RF=75KΩ,RL=32Ω
-30
0
30
mV
V
VOH
VOL
2V<VCC<16V, IOUT=-75mA
2V<VCC<16V, IOUT=75mA
Vcc-1
0.16
V
II(BIAS)
-100 -200
nA
KΩ
KΩ
Pin 3
Pin 2
100
18
150
25
220
40
Equivalent Resistance
REQ
AC PARAMETER
Open Loop Gain of Amp. 1
Open Loop Gain of Amp. 2
GV1
GV2
80
-0.35
55
dB
dB
f=1KHz, RL=32Ω
0
0.35
1
VCC=3V, RL=16Ω, THD<10%
mW
mW
mW
%
Output Power
POUT VCC=6V, RL=32Ω, THD<10%
VCC=12V, RL=100Ω, THD<10%
250
400
VCC=6V, RL=32Ω, POUT=125mW
0.5
0.5
0.6
1.5
Total Harmonic Distortion
(f=1KHz)
THD VCC≥3V, RL=8Ω, POUT=20mW
VCC≥12V, RL=32Ω, POUT=200mW
GBW
%
%
Gain Bandwidth Product
MHz
dB
C1=∞, C2=0.01μF
C1=0.1μF, C2=0, f=1KHz
C1=1μF, C2=5μF, f=1KHz
50
70
Power Supply Rejection
(VCC=6V, ΔVCC=3V)
RR
12
52
dB
dB
Muting
GV(MUTE) Mute=2V, 1KHz<f<20KHz
dB
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MC34119
LINEAR INTEGRATED CIRCUIT
TYPICAL CIRCUIT
VCC
MUTE
0.001μF
MUTE
VCC
0.01μF
100Kꢀ
100Kꢀ
75Kꢀ
6
1
6
1
Audio Input
0.1μF
Audio Input
0.1μF
5
8
5
8
3
4
3
4
UTC MC34119
UTC MC34119
0.05μF
0.05μF
2
7
2
7
0.05μF
0.05μF
5.0μF
5.0μF
5.1K
5.1K
5.1K
5.1K
VCC
VCC
75Kꢀ
6
1
4.7Kꢀ
20Kꢀ
3Kꢀ
0.1μF
5
8
Audio Input
4
3
MUTE
UTC MC34119
20Kꢀ
2
7
10Kꢀ
VEE
-1.0V~-8.0V
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MC34119
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Distortion Versus Power
(f = 1, 3.0kHz, AVD = 12dB)
Differential Gain Versus Frequency
40
32
24
16
8
10
VCC = 3.0V
RL = 32Ω
Rf = 150kΩ, Ri = 6.0kΩ
8.0
VCC = 3.0V
RL = 16Ω
6.0
Rf = 75kΩ, Ri = 3.0kΩ
Rf
4.0
2.0
0.1
Input
-
VO1
VO2
VCC = 12V,16V
RL = 16Ω,32Ω
VCC = 6.0V
RL = 16Ω,32Ω
#1
Ri
+
VO
#2
0
0
0
100
200
300
400
500
100
1.0k
10k 20k
Output Power, POUT (mW)
Frequency, f (Hz)
Device Dissipation, 16Ω Load
Device Dissipation, 32ΩLoad
1200
1000
800
1200
1000
800
600
400
200
0
VCC = 16V
VCC = 12V
VCC = 16V
VCC = 12V
VCC = 6.0V
600
400
VCC = 6.0V
VCC = 3.0V
200
VCC = 3.0V
0
0
100
200
300
400
500
0
100
200
300
400
Load Power (mW)
Load Power (mW)
Distortion Versus Power
(f = 3.0kHz, AVD = 34dB)
Distortion Versus Power
(f = 1.0kHz, AVD = 34dB)
10
8.0
6.0
10
VCC = 3.0V
RL = 16Ω
VCC = 3.0V
RL = 16Ω
VCC =6V
RL = 16Ω,32Ω
8.0
VCC = 3.0V
RL = 16Ω
VCC = 3.0V
RL = 32Ω
VCC = 6.0V
RL = 32Ω
6.0
VCC = 6.0V
L = 16Ω
VCC = 6.0V
R
4.0
2.0
0
4.0
2.0
R
L = 16Ω
VCC =12V,16V
RL = 16Ω,32Ω
VCC = 12V,16V
L = 32Ω
VCC =12V, 16V
L = 16Ω
R
R
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Power, POUT (mW)
Output Power, POUT (mW)
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MC34119
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
VOL @ VO1, VO2 Versus Load Current
Input Characteristics @ CD (Pin 1)
1.4
1.2
200
160
120
80
TA = 25°C
VCC = 3V
Valid for VCD ≤ VCC
1.0
0.8
0.6
0.4
0.2
0
VCC> 6V
40
0.8
0
40
80
120
160
200
0
4.0
8.0
12
16
Load Current, ILOAD (mA)
Chip Disable Voltage, VCD (V)
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MC34119
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.
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