Datasheet

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 3Ω load from 5V supply each channel
* Gain control internally
* Differential input fully
* Depop circuitry
* Shutdown protection thermally

ORDERING INFORMATION
Ordering Number
PA3017G-N20-R

Package
HTSSOP-20
Packing
Tape Reel
MARKING
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

CMOS IC
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
1,11 13,20
2
3
4
5
6,15
7
8
9
10
12
14
16
17
18
PIN NAME
GND
GAIN0
GAIN1
LOUT+
LINPVDD
RIN+
LOUTLIN+
BYPASS
NC
ROUTVDD
RINROUT+
I/O
I
O
DESCRIPTION
Ground
Bit 0 of gain control
Bit 1 of gain control
Positive output for left channel
Negative differential input for left channel
Supply voltage
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
Negative output for right channel
Supply voltage
Negative differential input for right channel
Positive output for right channel
19
SHUTDOWN
I
In shutdown mode when held low
I
I
O
I
I
I
O
I
O
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CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
6
V
Input Voltage
VIN
-0.3~VDD~+0.3
V
Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
-40~+85
°C
Storage Temperature
TSTG
-65~+150
°C
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
θJA
MIN
TYP
MAX
87.9
UNIT
°C/W
ELECTRICAL CHARACTERISTICS (TA= 25°C)
PARAMETER
SYMBOL
DC ELECTRICAL CHARACTERISTICS
Supply Voltage
VDD
High-Level Input Voltage
Low-Level Input Voltage
DC Differential Output Voltage
Supply Current in Mute Mode
Supply Current, Shutdown Mode
TEST CONDITIONS
VIH
SHUTDOWN , GAIN0, GAIN1
VIL
SHUTDOWN , GAIN0, GAIN1
IDD
4.5
5
IDD(SD)
VN
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5.5
V
V
5
0.8
V
25
mV
10.7
mA
80
SHUTDOWN =0.8V
CB=0.47µF, f=20 Hz ~20 kHz
MAX UNIT
2
SHUTDOWN =2V
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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TYP
VOUT(DIFF) VDD= 5V, Gain = 2
High-Level Input Current
|IIH|
VDD= 5.5V, VIN = VDD
Low-Level Input Current
|IIL|
VDD=5.5V, VIN = 0V
AC ELECTRICAL CHARACTERISTICS (VDD = 5.0V, RL = 8Ω, G=-2V/V)
Output Power
POUT
THD =1%, BTL, RL= 4Ω, G=-2V/V
POUT= 1W, BTL, RL= 8Ω, F=20Hz to
Total Harmonic Distortion Plus Noise THD+N
5kHz
Max Output Power Bandwidth
BOM
THD = 5%
Power Supply Ripple Rejection
PSRR VDD= 4.5 V ~ 5.5 V
Signal-to-Noise Ratio
SNR
POUT= 500mW, BTL, G=-2V/V
Output Noise Voltage
MIN
1.9
0.05
@1KHz
15
77
100
20.3
-75
300
µA
1
1
µA
µA
W
%
kHz
dB
dB
µV
(rms)
dB
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CMOS IC
TYPICAL APPLICATION CIRCUITS
Right
Line
Input
Signal
CRIN+
0.47µF
17 RIN7 RIN+
ROUT+
18
ROUT-
14
PVDD 6, 15
VDD 16
2 GAIN0
Gain
3 GAIN1 Control
Power
Management
VDD
CSR
0.1µF
CSR
0.1µF
BYPASS 10
SHUTDOWN 19 To System
Control
CBYP
0.47µF
GND
Left
Line
Input
Signal
1, 11,
13, 20
CLIN+
0.47µF
5 LIN9 LIN+
LOUT+ 4
LOUT- 8
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CMOS IC
TYPICAL APPLICATION CIRCUITS(Cont.)
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CMOS IC
APPLICATION INFORMATION
Shutdown Mode Operating
SHUTDOWN PIN INPUT
LOW
HIGH
OTHERS
THE AMPLIFIER’S OUTPUT
MUTE(the current of this device will be reduced to 160µA )
BTL
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
10
15.6
21.6
GAIN0
0
0
1
1
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GAIN1
0
1
0
1
R I(kΩ)
90
70
45
25
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Total Harmonic Distortion
Plus+Noise, THD+N (%)
Total Harmonic Distortion
Plus+Noise, THD+N (%)
Total Harmonic Distortion
Plus+Noise, THD+N (%)
Total Harmonic Distortion
Plus+Noise, THD+N (%)
TYPICAL CHARACTERISTICS
5
2
Total Harmonic Distortion Plus Noise
vs Output Power
RL=3ohm
AV=21.6dB
1
0.5
0.2
0.1
f=10KHz
f=20KHz
f=20Hz
f=1KHz
0.05
0.02
0.01
10m 20m 50m100m200m500m 1
Output Power, POUT (W)
2
1
0.5
0.2
0.1
f=10KHz
f=20KHz
0.05
2 3
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Total Harmonic Distortion Plus Noise
vs Output Power
RL=4ohm
5 A =6dB
V
10
Total Harmonic Distortion
Plus+Noise, THD+N (%)
10
Total Harmonic Distortion
Plus+Noise, THD+N (%)

CMOS IC
f=20Hz
0.02
f=1KHz
0.01
10m 20m 50m100m200m500m 1 2 3
Output Power, POUT (W)
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TYPICAL CHARACTERISTICS(Cont.)
Total Harmonic Distortion Plus Noise
vs Output Power
Total Harmonic Distortion
Plus+Noise, THD+N (%)
5
2
1
0.5
0.2
0.1
0.05
10
RL=4ohm
AV=15.6dB
Total Harmonic Distortion
Plus+Noise, THD+N (%)
10
f=10KHz
f=20KHz
f=1KHz
Total Harmonic Distortion Plus Noise
vs Output Power
RL=4ohm
AV=21.6dB
5
2
1
0.5
f=10KHz
0.2
0.1
f=1KHz
0.02
0.01
10m 20m 50m100m200m500m 1
Output Power, POUT (W)
2 3
Total Harmonic Distortion
Plus+Noise, THD+N (%)
2 3
Total Harmonic Distortion Plus Noise
vs Output Power
10
RL=8ohm
5 A =21.6dB
V
f=20KHz
2
1
0.5
f=20Hz
0.2
0.1
0.05
f=10KHz
f=1KHz
0.02
0.01
10m 20m 50m100m 200m 500m 1
Output Power, POUT (W)
2
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Output Noise Voltage vs Bandwidth
100u
Output Noise Voltage , Vn (uV)
Total Harmonic Distortion
Plus+Noise, THD+N (%)
f=20KHz
f=20Hz
0.05
f=20Hz
0.02
0.01
10m 20m 50m100m200m500m 1
Output Power, POUT (W)
Total Harmonic Distortion
Plus+Noise, THD+N (%)

CMOS IC
50u
AV=21.6dB
AV=6dB
AV=15.6dB
20u
10u
5u
2u
1u
20
VDD=5V
RL=4ohm
50 100200 500 1K 2K 5K 10K20K
Bandwidth, BW (Hz)
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Crosstalk (dB)
Shutdown Attenuation (dB)
TYPICAL CHARACTERISTICS(Cont.)
Signal-to-Noise Ratio vs Freqency
Closed Loop Response
Signal-to-Noise Ratio, SNR (dB)
+120
+30
+110
Gain (dB)
+15
+60
50 100200 500 1K 2K 5K 10K20K
Frequency, f (Hz)
gain
+180
+0
+120
phase
-60
+0
-120
-5
-10
-180
20 50100 500 1k 2K 5K10K 50k 200K
Frequency, f (Hz)
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+25
RL=8ohm
AV=21.6dB
gain
+180
+120
+20
+60
+0
+10
-60
gain
Closed Loop Response
+30
+60
+15
Gain (dB)
RL=8ohm
AV=15.6dB
+15
+5
+60
-120
-5
-10
-180
20 50100 500 1k 2K 5K10K 50k 200K
Frequency, f (Hz)
PO=1W
RL=8ohm
Closed Loop Response
+20
+5
+0
+25
+120
phase
+10
+70
+30
+180
+20
AV=15.6dB
+90 A =21.6dB
V
+80
+50
+40
20
RL=8ohm
AV=6dB
+25
AV=6dB
+100
Gain (dB)

CMOS IC
+10
+5
+0
phase
+0
-60
-120
-5
-10
-180
20 50100 500 1k 2K 5K10K 50k 200K
Frequency, f (Hz)
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Power Dissipation , PD (W)
TYPICAL CHARACTERISTICS(Cont.)
Output Power , PO (W)

CMOS IC
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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