PA3017_09 [UTC]
2W STEREO AUDIO AMPLIFIER; 2W立体声音频放大器
| 型号： | PA3017_09 |
| 厂家： | 
Unisonic Technologies |
| 描述： | 2W STEREO AUDIO AMPLIFIER |
| 文件： | 总10页 (文件大小：389K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
PA3017
CMOS IC
2W STEREO AUDIO AMPLIFIER
DESCRIPTION
As a stereo audio speaker which is operating on a single 5V
supply, the UTC PA3017 is capable of delivering 2W of output
power per channel into 3Ω loads with less than 1% THD+N. Way of
two terminals (GAIN0 and GAIN1) can configured and control the
amplifier gain. It also provide gain settings of 6 dB, 10 dB, 15.6 dB,
and 21.6 dB (inverting). Other features include internal gain control
which requires few external components, an active-low shutdown
mode input and thermal shutdown protection.
FEATURES
* 2W output power into 3ꢀ load from 5V supply each channel
* Gain control internally
* Differential input fully
Lead-free:
Halogen-free:PA3017G
PA3017L
* Depop circuitry
* Shutdown protection thermally
ORDERING INFORMATION
Ordering Number
Lead Free Plating
PA3017L-N20-R
Package
Packing
Tape Reel
Normal
Halogen Free
PA3017-N20-R
PA3017G-N20-R
HTSSOP-20
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Copyright © 2009 Unisonic Technologies Co., Ltd
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PA3017
CMOS IC
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
PIN NAME
GND
I/O
DESCRIPTION
1,11 13,20
Ground
2
3
GAIN0
GAIN1
I
I
Bit 0 of gain control
Bit 1 of gain control
Positive output for left channel
4
LOUT
+
O
I
5
LIN-
PVDD
RIN+
Negative differential input for left channel
Supply voltage
6,15
7
I
I
Positive differential input for right channel
Negative output for left channel
Positive differential input for left channel
Tap to voltage divider for internal mid supply bias generator
Nothing connection
8
LOUT
-
O
I
9
LIN+
BYPASS
NC
10
12
14
16
17
18
19
ROUT
VDD
-
O
Negative output for right channel
Supply voltage
RIN-
I
O
I
Negative differential input for right channel
Positive output for right channel
In shutdown mode when held low
ROUT
+
SHUTDOWN
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PA3017
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VCC
RATINGS
6
UNIT
V
Supply Voltage
Input Voltage
VIN
-0.3~VDD~+0.3
+150
V
Junction Temperature
Operating Temperature
Storage Temperature
TJ
°C
°C
°C
TOPR
TSTG
-40~+85
-65~+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.
THERMAL DATA
PARAMETER
Junction to Ambient
SYMBOL
MIN
TYP
MAX
87.9
UNIT
θJA
℃/W
ELECTRICAL CHARACTERISTICS (TA= 25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
DC ELECTRICAL CHARACTERISTICS
Supply Voltage
VDD
VIH
VIL
4.5
2
5
5.5
V
V
High-Level Input Voltage
SHUTDOWN , GAIN0, GAIN1
SHUTDOWN , GAIN0, GAIN1
0.8
25
V
Low-Level Input Voltage
DC Differential Output Voltage
Supply Current in Mute Mode
VOUT(DIFF) VDD= 5V, Gain = 2
5
mV
mA
10.7
80
=2V
SHUTDOWN
IDD
300
1
µA
µA
µA
SHUTDOWN =0.8V
VDD= 5.5V, VIN = VDD
VDD=5.5V, VIN = 0V
Supply Current, Shutdown Mode
High-Level Input Current
IDD(SD)
|IIH|
Low-Level Input Current
|IIL|
1
AC ELECTRICAL CHARACTERISTICS (VDD = 5.0V, RL = 8Ω, G=-2V/V)
Output Power POUT THD =1%, BTL, RL= 4ꢀ, G=-2V/V
1.9
W
%
POUT= 1W, BTL, RL= 8ꢀ, F=20Hz to
0.05
Total Harmonic Distortion Plus Noise THD+N
5kHz
@1KHz
Max Output Power Bandwidth
Power Supply Ripple Rejection
Signal-to-Noise Ratio
BOM
THD = 5%
15
kHz
dB
PSRR VDD= 4.5 V ~ 5.5 V
77
SNR
POUT= 500mW, BTL, G=-2V/V
100
dB
µV
(rms)
dB
Output Noise Voltage
VN
CB=0.47µF, f=20 Hz ~20 kHz
20.3
-75
Supply Ripple Rejection Ratio
KSVR f =1kHz, CB=0.47µF
Note: Output power is measured at the output terminals of the IC at 1kHz
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PA3017
CMOS IC
TYPICAL APPLICATION CIRCUITS
Right
Line
Input
Signal
ROUT
+
18
14
17 RIN-
7 RIN+
CRIN+
0.47µF
ROUT
-
PVDD 6, 15
VDD 16
VDD
CSR
0.1µF
2 GAIN0
3 GAIN1
CSR
0.1µF
BYPASS
10
19
Power
Management
Gain
Control
SHUTDOWN
GND
To System
Control
CBYP
0.47µF
Left
Line
Input
Signal
1, 11,
13, 20
LOUT+ 4
5 LIN-
9 LIN+
CLIN+
0.47µF
LOUT- 8
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PA3017
CMOS IC
TYPICAL APPLICATION CIRCUITS(Cont.)
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PA3017
CMOS IC
APPLICATION INFORMATION
Shutdown Mode Operating
SHUTDOWN PIN INPUT
THE AMPLIFIER’S OUTPUT
LOW
MUTE(the current of this device will be reduced to 160µA )
HIGH
BTL
OTHERS
Don’t Care
CI(Input Capacitor)
The value of CI is important to consider as it directly affects the bass performance of the application circuit. When CI
is required to allow the amplifier to bias the input signal to the proper dc level for optimum operation, it’s value can be
calculate by this equation:
CI=1/(2πRIFC)
RI:Input Impedance
FC:High-pass Filter’s Frequency
The low leakage tantalum or ceramic capacitors are suggested to be used as the input coupling capacitors, because
of the small leakage current of the input ca-pacitors will cause the dc offset voltage at the input to the amplifier that
reduces the operation headroom, especially at the high gain applications. It is important to let the positive side
connecting to the higher dc level of the application when using the polarized capacitors.
Gain setting (VS GAIN0, GAIN1 and RI)
Gain setting is determined by GAIN0 and GAIN1. The gains listed in the next table are realized by changing the taps
on the input resistors inside the amplifier which will cause the internal input impedance(R I) to be dependent on the
gain setting as we can see listed in the next table.
AV(dB)
6
GAIN0
GAIN1
R I(kꢀ)
90
0
0
1
1
0
1
0
1
10
70
15.6
21.6
45
25
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PA3017
CMOS IC
TYPICAL CHARACTERISTICS
Total Harmonic Distortion Plus Noise
vs Output Power
RL=4ohm
AV=6dB
Total Harmonic Distortion Plus Noise
vs Output Power
10
5
10
5
RL=3ohm
AV=21.6dB
2
1
2
1
f=10KHz
f=20KHz
0.5
0.5
f=20Hz
0.2
0.1
f=10KHz
0.2
0.1
f=20KHz
f=1KHz
0.05
0.05
f=20Hz
0.02
0.01
0.02
0.01
f=1KHz
10m 20m50m100m200m500m 1 2 3
Output Power, POUT (W)
10m 20m50m100m200m500m 1 2 3
Output Power, POUT (W)
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PA3017
CMOS IC
TYPICAL CHARACTERISTICS(Cont.)
Total Harmonic Distortion Plus Noise
vs Output Power
Total Harmonic Distortion Plus Noise
vs Output Power
10
5
10
5
RL=4ohm
AV=15.6dB
RL=4ohm
AV=21.6dB
2
1
2
1
f=10KHz
0.5
0.5
f=20KHz
f=20Hz
f=10KHz
f=20KHz
0.2
0.1
0.2
0.1
f=1KHz
f=20Hz
0.05
0.05
f=1KHz
0.02
0.01
0.02
0.01
10m 20m50m100m200m500m 1 2 3
Output Power, POUT (W)
10m 20m50m100m200m500m 1 2 3
Output Power, POUT (W)
Total Harmonic Distortion Plus Noise
vs Output Power
RL=8ohm
Output Noise Voltage vs Bandwidth
10
100u
AV=21.6dB
5
AV=21.6dB
50u
20u
f=20KHz
2
AV=6dB
AV=15.6dB
1
0.5
f=20Hz
10u
5u
0.2
0.1
f=10KHz
0.05
f=1KHz
VDD=5V
RL=4ohm
2u
1u
0.02
0.01
20 50 100200 5001K 2K 5K10K20K
Bandwidth, BW (Hz)
10m 20m50m100m 200m 500m 1
Output Power, POUT (W)
2
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PA3017
CMOS IC
TYPICAL CHARACTERISTICS(Cont.)
Signal-to-Noise Ratio vs Freqency
AV=6dB
Closed Loop Response
+180
+120
+60
+0
+120
+110
+30
+25
RL=8ohm
AV=6dB
+100
+90
+20
+15
+10
AV=15.6dB
AV=21.6dB
phase
gain
+80
+70
+60
+5
+0
-60
-120
PO=1W
RL=8ohm
+50
+40
-5
-10
-180
20 50 100200 5001K 2K 5K10K20K
Frequency, f (Hz)
20 50100 5001k 2K 5K10K 50k 200K
Frequency, f (Hz)
Closed Loop Response
Closed Loop Response
+180
+180
+30
+25
+30
+25
RL=8ohm
RL=8ohm
AV=15.6dB
AV=21.6dB
gain
+120
+60
+0
+120
+60
+0
+20
+15
+10
+20
+15
+10
gain
phase
phase
+5
+0
+5
+0
-60
-60
-120
-120
-5
-5
-10
-10
-180
-180
20 50100 5001k 2K 5K10K 50k 200K
Frequency, f (Hz)
20 50100 5001k 2K 5K10K 50k 200K
Frequency, f (Hz)
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PA3017
CMOS IC
TYPICAL CHARACTERISTICS(Cont.)
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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