APA2065
Stereo 2.7-W Audio Power Amplifier (with DC_Volume Control)
Features
•
•
•
•
•
•
•
•
•
•
•
Low Operating Current with 14mA
Improved Depop Circuitry to Eliminate
Turn-on and Turn-off Transients in Outputs
High PSRR
32 Steps Volume Adjustable by DC Voltage
with Hysteresis
2W per Channel Output Power into 4Ω Load
at 5V, BTL Mode
Two Output Modes Allowable with BTL
and SE Modes Selected by SE/BTL pin
Low Current Consumption in Shutdown Mode
(50µA)
Short Circuit Protection
Power Off Depop Circuit Integration
PDIP-16 & SOP-16 Packages Available
Lead Free Available (RoHS Compliant)
General Description
APA2065 is a monolithic integrated circuit, which
provides precise DC volume control, and a stereo
bridged audio power amplifiers capable of producing
2.7W(2.0W) into 3Ω with less than 10%(1.0%) THD+N.
The attenuator range of the volume control in APA2065
is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V)
with 32 steps. The advantage of internal gain setting
can be less components and PCB area. Both of the
depop circuitry and the thermal shutdown protection
circuitry are integrated in APA2065, that reduce pops
and clicks noise during power up or shutdown mode
operation. It also improves the power off pop noise
and protects the chip from being destroyed by over
temperature and short current failure. To simplify the
audio system design, APA2065 combines a stereo
bridge-tied loads (BTL) mode for speaker drive and a
stereo single-end (SE) mode for headphone drive into
a single chip, where both modes are easily switched
by the SE/BTL input control pin signal.
Applications
•
•
NoteBook PC
LCD Monitor or TV
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Aug., 2005
1
www.anpec.com.tw
APA2065
Ordering and Marking Information
APA2065
Lead Free Code
Handling Code
Temp. Range
Package Code
APA2065 J :
APA2065 K :
APA2065
XXXXX
APA2065
XXXXX
Package Code
J : PDIP-16
K : SOP-16
Temp. Range
I : - 40 to 85
°
C
Handling Code
TU : Tube
TR : Tape & Reel
TY : Tray
Lead Free Code
L : Lead Free Device
Blank : Original Device
XXXXX - Date Code
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate
termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
Block Diagram
LOUT+
LIN-
RIN-
Volume
Control
LOUT-
BYPASS
BYPASS
ROUT+
VOLUME
SE/BTL
SE/BTL
ROUT-
SHUTDOWN
Shutdown
ckt
POW ER and
Depop circuit
VDD
GND
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Aug., 2005
2
www.anpec.com.tw
APA2065
Absolute Maximum Ratings
(Over operating free-air temperature range unless otherwise noted.)
Symbol
V
DD
V
IN
T
A
T
J
T
STG
T
S
V
ESD
P
D
Note:
1.APA2065 integrated internal thermal shutdown protection when junction temperature ramp up to 150°C
2.Human body model: C=100pF, R=1500Ω, 3 positives pulse plus 3 negative pulses
3.Machine model: C=200pF, L=0.5µF, 3 positive pulses plus 3 negative pulses
Parameter
Supply Voltage Range
Input Voltage Range, SE/BTL,
SHUTDOWN
Operating Ambient Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Soldering Temperature,10 seconds
Electrostatic Discharge
Power Dissipation
Rating
-0.3 to 6
-0.3 to V
DD
+0.3
-40 to 85
Intermal Limited*
-65 to +150
260
-3000 to 3000*
2
-200 to 200*
3
Intermal Limited
1
Unit
V
V
°C
°C
°
C
°C
V
Recommended Operating Conditions
Min.
Supply Voltage, V
DD
High level threshold voltage, V
IH
Low level threshold voltage, V
IL
Common mode input voltage, V
ICM
SHUTDOWN
SE/BTL
SHUTDOWN
SE/BTL
V
DD
-1.0
4.5
2
4
1.0
3
Max.
5.5
Unit
V
V
V
V
Thermal Characteristics
Symbol
R
THJA
Parameter
Thermal Resistance from Junction to Ambient in Free Air
PDIP-16
SOP-16
45
60
K/W
K/W
Value
Unit
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Aug., 2005
3
www.anpec.com.tw
APA2065
Electrical Characteristics
V
DD
=5V, -20°C<T
A
<85°C (unless otherwise noted)
Symbol
V
DD
I
DD
I
SD
I
IH
I
IL
V
OS
Parameter
Supply Voltage
Supply Current
Supply Current in Shutdown
Mode
High input Current
Low Input Current
Output Differential Voltage
SE/BTL=0V
SE/BTL=5V
SE/BTL=5V
SHUTDOWN=0V
50
900
900
5
Test Condition
APA2065
Min. Typ. Max.
4.5
5.5
14
25
8.0
15
Unit
V
mA
µA
nA
nA
mV
Operating Characteristics, BTL mode V
DD
=5V,T
A
=25°C,R
L
=4Ω, Gain=2V/V (unless otherwise noted)
Symbol
Parameter
Test Condition
THD=10%, R
L
=3Ω, Fin=1kHz
THD=10%, R
L
=4Ω, Fin=1kHz
THD=10%, R
L
=8Ω, Fin=1kHz
THD=1%, R
L
=3Ω, Fin=1kHz
THD=1%, R
L
=4Ω, Fin=1kHz
THD=0.5%, R
L
=8Ω, Fin=1kHz
P
O
=1.5W, R
L
=4Ω, Fin=1kHz
P
O
=1W, R
L
=8Ω, Fin=1kHz
V
IN
=0.1Vrms, R
L
=8Ω, C
B
=1µF,
Fin=120Hz
C
B
=1µF, R
L
=8Ω, Fin=1kHz
P
O
=1.1W, R
L
=8Ω, A_wieght
APA2065
Unit
Min. Typ. Max.
2.7
2.3
1.5
W
2.0
1.9
1
1.1
0.05
%
0.07
60
90
95
dB
dB
dB
P
O
Maximum Output Power
THD+N Total Harmonic Distortion Plus
Noise
PSRR Power Ripple Rejection Ratio
Xtalk
S/N
Channel Separation
Signal to Noise Ratio
Operating Characteristics, SE mode V
DD
=5V,T
A
=25°C,R
L
=4Ω, Gain=1V/V (unless otherwise noted)
Symbol
Parameter
Test Condition
THD=10%, R
L
=8
Ω
, Fin=1kHz
THD=10%, R
L
=32
Ω
, Fin=1kHz
THD=1%, R
L
=8Ω, Fin=1kHz
THD=1%, R
L
=32Ω, Fin=1kHz
P
O
=250mW, R
L
=8Ω, Fin=1kHz
P
O
=75mW, R
L
=32
Ω
, Fin=1kHz
V
IN
=0.1Vrms, R
L
=8
Ω
, C
B
=1
µ
F,
Fin=120Hz
C
B
=1µF, R
L
=32Ω, Fin=1kHz
P
O
=75mW, SE, R
L
=32Ω, A_wieght
4
P
O
Maximum Output Power
THD+N Total Harmonic Distortion Plus
Noise
PSRR Power Ripple Rejection Ratio
Xtalk
S/N
Channel Separation
Signal to Noise Ratio
APA2065
Unit
Min. Typ. Max.
400
110
mW
320
90
0.08
%
0.08
48
100
100
dB
dB
dB
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Aug., 2005
www.anpec.com.tw
APA2065
Pin Description
ROUT+ 1
SHUTDOWN 2
RIN- 3
GND 4
GND 5
VOLUME 6
LOUT+ 7
LIN- 8
APA2065
PDIP-16
16 VDD
15 ROUT-
14 SE/BTL
13 GND
12 GND
1 1 B Y PASS
10 LOUT-
9
VDD
GND 1
VOLUME 2
LOUT+ 3
LIN- 4
V DD 5
LOUT- 6
BYPASS 7
GND 8
APA2065
SOP-16
16 GND
15 RIN-
14 SHUTDOWN
13 ROUT+
12 VDD
11 ROUT-
10 SE/BTL
9 GND
Pin Function Description
Pin Name
GND
VOLUME
LOUT+
LIN-
LOUT-
BYPASS
SE/BTL
ROUT-
VDD
ROUT+
SHUTDOWN
RIN-
I/P
O/P
I/P
O/P
I/P
O/P
O/P
I/P
I/P
Config.
Description
Ground connection, Connected to thermal pad.
Input signal for internal volume gain setting.
Left channel positive output in BTL mode and SE mode.
Left channel input terminal
Left channel negative output in BTL mode and high impedance in SE mode.
Bias voltage generator
Output mode control input, high for SE output mode and low for BTL mode.
Right channel negative output in BTL mode and high impedance in SE
mode.
Supply voltage for internal circuit excepting power amplifier.
Right channel positive output in BTL mode and SE mode.
It will be into shutdown mode when pull low.
Right channel input terminal
Control Input Table
SE/BTL
X
L
H
SHUTDOWN
L
H
H
Operating mode
Shutdown mode
BTL out
SE out
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Aug., 2005
5
www.anpec.com.tw
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