PA6021-D20-T [UTC]
2-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL; 具有高级DC音量控制的2W立体声音频功率放大器
| 型号： | PA6021-D20-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | 2-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL |
| 文件： | 总6页 (文件大小：270K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
PA6021
CMOS IC
2-W STEREO AUDIO POWER
AMPLIFIER WITH ADVANCED
DC VOLUME CONTROL
DESCRIPTION
The PA6021 is a stereo audio power amplifier that drives 2
DIP-20
W/channel of continuous RMS power into a 4-Ω load when utilizing a
heat sink. Advanced dc volume control minimizes external
components and allows BTL (speaker) volume control and SE
(headphone) volume control.
The 20-pin DIP package allows for the use of a heatsink which
provides higher output power.
To ensure a smooth transition between active and shutdown
modes, a fade mode ramps the volume up and down.
Lead-free:
Halogen-free: PA6021G
PA6021L
FEATURES
* 2 W Into 4-W speakers with external heatsink
* DC volume control with 2-dB
* Steps from -40 dB ~ 20 dB
* – Fade Mode
* – -85-dB Mute Mode
* Differential Inputs
* 1-µA Shutdown Current (Typical)
* Headphone Mode
ORDERING INFORMATION
Ordering Number
Package
DIP-20
Packing
Tube
Normal
Lead Free Plating
PA6021L-D20-T
Halogen Free
PA6021-D20-T
PA6021G-D20-T
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PA6021
CMOS IC
PIN CONFIGURATION
ROUT+
PGND
ROUT-
PVDD
RIN+
1
2
3
4
5
20
19
18
17
SE/BTL
VOLUME
AGND
RIN-
BYPASS
FADE
16
15
14
13
VDD
LIN-
6
SHUTDOWN
NC
7
8
LIN+
PVDD
LOUT-
9
12 LOUT+
PGND
11
10
PIN DESCRIPTION
PIN #
PIN NAME
BYPASS
I/O
I
DESCRIPTION
Tap to voltage divider for internal midsupply bias generator used for
analog reference
16
15
Places the amplifier in fade mode if a logic low is placed on this terminal;
normal operation if logic high is placed on this terminal.
Analog power supply ground
FADE
I
17
7
AGND
LIN-
I
Left channel negative input for fully differential input.
Left channel positive input for fully differential input.
Left channel negative audio output
8
LIN+
I
LOUT
-
10
12
13
1,11
3,9
5
O
O
LOUT+
NC
Left channel positive audio output.
No connection
PGND
PVDD
RIN-
Power ground
Supply voltage terminal for power stage
Right channel negative input for fully differential input.
Right channel positive input for fully differential input.
Right channel negative audio output
I
4
RIN+
I
ROUT
-
2
O
O
20
ROUT+
Right channel positive audio output
Output control. When this terminal is high, SE outputs are selected. When
this terminal is low, BTL outputs are selected.
Places the amplifier in shutdown mode if a TTL logic low is placed on this
terminal
SE/BTL
19
14
I
I
SHUTDOW
6
VDD
Supply voltage terminal
18
VOLUME
I
Terminal for dc volume control. DC voltage range is 0 to VDD.
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PA6021
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VSS
RATINGS
-0.3V ~ 6V
UNIT
V
Supply Voltage, VDD, PVDD
Input Voltage, RIN+, RIN-, LIN+,LIN-
Junction Temperature
VIN
-0.3V ~ VDD+0.3V
-40°C ~ 150°C
-40°C ~ 85°C
-65°C ~ 85°C
V
℃
TJ
℃
Operating Temperature
TOPR
TSTG
℃
Storage Temperature Range
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.
ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNIT
DC CHARACTERISTICS (VDD=PVDD=5.5V)
Supply Voltage, VDD, PVDD
VDD
VOUT(DIFF)
4
5.5
30
50
V
Gain=0dB, SE/ BTL=0V
Gain=20dB, SE/BTL=0V
DC Differential Output Voltage
mV
0.8xVDD
2
V
V
V
V
SE/ BTL , FADE
SHUTDOWN
High-level Input Voltage
Low-level Input Voltage
VIH
0.6xVDD
0.8
SE/ BTL , FADE
SHUTDOWN
VIL
High-level Input Current (SE/ BTL,
FADE, SHUTDOWN, VOLUME
Low-level Input Current (SE/ BTL,
FADE, SHUTDOWN, VOLUME
| IIH
|
VIN=VDD=PVDD
VIN=0V
1
1
µA
µA
| IIL |
SE/ BTL=0V, SHUTDOWN=2V
SE/ BTL=5.5V, SHUTDOWN=2V
SHUTDOWN =0V
6.0
3.0
7.5
5
9.0
6
Supply Current, No Load
IDD
mA
µA
Supply Current, Shutdown Mode
IDD(SD)
1
20
AC CHARACTERISTICS(VDD=PVDD=5V, RL=4Ω, Gain=20dB)
Measured at pin 16, No load,
DD=5.5V
Bypass Voltage (Nominally VDD/2)
High-Level Output Voltage
Low-Level Output Voltage
Output Power
V(Bypass)
VOH
2.65 2.75 2.85
V
V
RL=8Ω, Measured between output
and VDD=5.5V
700
400
mV
mV
W
RL=8Ω, Measured between output
and GND, VDD=5.5V
VOL
THD=1%, f=1kHz
1.5
2
POUT
THD=10%, f=1kHz
Total Harmonic Distortion + Noise
Power Supply Rejection Ratio
Input Impedance
THD+N POUT=1W, RL=8Ω, f=20Hz~20kHz
<0.8%
PSRR
ZI
VDD=PVDD=4V~5.5V
VOLUME=5V
-42
-70
14
dB
kΩ
dB
dB
f=1kHz, Gain=0dB,
C(BYP)=0.47µF
BTL
SE
-82
-57
Supply Ripple Rejection Ratio
Noise Output Voltage
RR
eN
IDD
f=20Hz~20kHz, Gain=0dB,
C(BYP)=0.47µF
BTL
36
µVRMS
ARMS
Supply Current, Max Power Into a
4-Ω Load
SHUTDOWN=2V, RL=4Ω,
SE/ BTL=0V, POUT=2W
1.3
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QW-R502-257.A
PA6021
CMOS IC
TYPICAL APPLICATION CIRCUIT
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PA6021
CMOS IC
BLOCK DIAGRAM
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PA6021
CMOS IC
TYPICAL CHARACTERISTICS
Output Waveform
Output Waveform
4
2
4
2
0
0
-2
-4
-2
-4
VRMS=2.92V
VRMS=2.52V
VDD=5V, RL=4Ω,
THD=10%
VDD=5V, RL=4Ω,
THD=1%
4
2
4
2
0
0
-2
-2
VRMS=2.95V
800
VRMS=2.54V
800
-4
-4
0
400
1200
1600
2000
0
400
1200
1600
2000
Time (µs)
Time (µs)
Output Waveform
4
2
0
-2
-4
VRMS=2.84V
VDD=5V, RL=8Ω,
POUT=1W
4
2
0
-2
VRMS=2.87V
800
-4
0
400
1200
1600
2000
Time (µs)
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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