AW8736 Data Sheet
May 2013 V1.5
High efficiency、Ultralow distortion、Constant large volume、Sixth
generation Class K Audio Amplifier
FEATURES
New generation charge pump technology
：
K-Chargepump，efficiency reaches as high as
92%
Power amplifier overall efficiency 75%，greatly
prolong mobile phone usage time
Ultra-low distortion：0.02%
Within Lithium battery voltage range, output
power is maintained constant
Output Power level：0.8W、1W、1.2W
Second generation Non-crack-noise (NCN)
technology
Super TDD-Noise suppression
Ultra-low EMI
One wire pulse control
High PSRR：-65dB（217Hz）
Small 2mm×2mm FC-16package
DESCRIPTION
AW8736 is designed to enhance smart mobile phone
sound quality,which is a new high efficiency, ultra-low
distortion, constant large volume, sixth generation class
K audio amplifiers. Using a new generation of charge
pump technology：K -Chargepump structure, efficiency
as high as 92%, power amplifier’s overall efficiency
reaches 75%, greatly prolong the mobile phone usage
time. 0.02% ultra-low distortion and unique
non-crack-noise (NCN) technology brings high quality
music enjoyment.
AW8736 integrated K-Chargepump booster circuit,
the output power cannot drop along with lithium battery
voltage lower down. Within lithium battery voltage
range(3.3 V - 4.35V), output power is constant, providing
high quality music enjoyment. AW8736 has 0.8 W, 1 W
and 1.2 W three output power level, recommended using
rated power of 0.7W and above speakers, which
greatly improve the volume, and effectively protect
speakers.
The AW8736 uses awinic proprietary TDD-Noise
suppression technology and EMI suppression
technology, effectively restrain TDD-Noise and EMI
interference.
AW8736
built-in
over
current
protection,
over-temperature protection and short circuit protection
function, effectively protect the chip. The AW8736 uses
small 2mmx2mm FC-16 package.
APPLICATIONS
Smart phone
DEVICE PINOUT
AW8736FCR TOP VIEW
AW8736FCR MARKING
D
C2P
C1P
PVDD
VON
D
C
C1N
GND
GND
GND
C
8736
XXXX
1
2
3
4
B
A
C2N
C2N
VDD
VOP
B
A
INP
INN
VDD
SHDN
1
2
3
4
Please notice the pin number
8736
–
AW8736FCR
XXXX–Production tracking code
Figure 1 AW8736FCR pin diagram top view and device marking
COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD.
1
AW8736 Data Sheet
May 2013 V1.5
High efficiency、Ultralow distortion、Constant large volume、Sixth
generation Class K Audio Amplifier
PIN DESCRIPTION
Number
A1
A2
A3，B3
A4
B1
B2
B4
C1
C2
C3
C4
D1
D2
D3
D4
Symbol
INP
INN
VDD
SHDN
C2N
VOP
C1N
GND
C2P
C1P
PVDD
VON
Description
Positive audio input terminal
Negative audio input terminal
Power supply
Chip power down pin，active low；one wire pulse control；
Negative side of the external charge pump flying capacitor C2
Positive audio output terminal
Negative side of the external charge pump flying capacitor C1
Ground
Positive side of the external charge pump flying capacitor C2
Positive side of the external charge pump flying capacitor C1
Boost charge pump output voltage
Negative audio output terminal
APPLICATION DIAGRAM
VBAT
C
F1
2.2uF
C
F2
2.2uF
C
S1
4.7uF
C
S2
0.1uF
A3,B3
VDD
Pulse Input
1
2
3
4
D2
C1
C1P C1N
D1
C2P
B1,B2
C2N
PVDD
D3
C
OUT
4.7uF
A4
SHDN
Single-Ended
Input
15nF
Cin
3KΩ
Rin
C1
220pF
A2
INN
AW8736
A1
INP
VOP
B4
B1
C2
1nF
Cin
15nF
Rin
3KΩ
VON
D4
B2
C3
1nF
GND
C2,C3,C4
Figure 2 AW8736 single-ended input application diagram (Note 1)
Note1：when
single-ended input，input audio signal can arbitrarily connect to one of INN，INP input terminal，
the other terminal connects to ground through input capacitor and resistance.
COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD.
2
AW8736 Data Sheet
May 2013 V1.5
High efficiency、Ultralow distortion、Constant large volume、Sixth
generation Class K Audio Amplifier
Filter capacitor Cs suggest using X7R/X5R ceramic capacitors, if using tantalum capacitors, one ceramic
capacitor greater than 1 uF must be placed near the VDD pin to filter high frequency interference signal.
VBAT
C
F1
2.2uF
C
F2
2.2uF
C
S1
4.7uF
C
S2
0.1uF
A3,B3
VDD
Pulse Input
1
2
3
4
D2
C1
C1P C1N
D1
C2P
B1,B2
C2N
PVDD
D3
C
OUT
4.7uF
A4
SHDN
Differential
Input
15nF
Cin
3KΩ
Rin
C1
220pF
A2
INN
AW8736
A1
INP
VOP
B4
B1
C2
1nF
Cin
15nF
Rin
3KΩ
VON
D4
B2
C3
1nF
GND
C2,C3,C4
Figure 3 AW8736 differential input application diagram
ORDERING INFORMATION
Product Type
Operation temperature range
Package
Device Marking
Delivery Form
AW8736FCR
-40℃½85℃
FC-16
8736
Tape and Reel
3000 pcs
AW8736
Shipment
R: Tape & Reel
Package type
FC: FC16
COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD.
3
AW8736 Data Sheet
May 2013 V1.5
High efficiency、Ultralow distortion、Constant large volume、Sixth
generation Class K Audio Amplifier
ABSOLUTE MAXIMUM RATING(Note2)
Parameter
Supply Voltage V
DD
INP，INN Input Pin Voltage
Package Thermal Resistance θ
JA
Ambient Temperature Range
Maximum Junction Temperature T
JMAX
Storage Temperature Range T
STG
Lead Temperature（Soldering 10 Seconds）
ESD Rating（Note 3）
HBM（human body model）
Latch-up
Test Condition：JEDEC STANDARD NO.78B DECEMBER 2008
+IT：450mA
-IT：-450mA
±
6KV
Range
-0.3V to 6V
-0.3V to V
DD
+0.3V
69℃/W
-40℃
to 85℃
125℃
-65℃
to 150℃
260℃
Note 2：
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damageto the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those
indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions
for extended periods may affect device reliability.
Note 3：
The human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. Test method:
MIL-STD-883G Method 3015.7
MODE DESCRIPTION
AW8736 audio amplifier outer input capacitor is Cin，
outer input resist is Rin，
inner input resist is 16.5KΩ，
gain Av is 320K/(Rin+16.5K). Recommended typical application is：
1、 Cin=15nF，Rin=3KΩ，Av=16.3V/V；
2、 Cin=15nF，Rin=10KΩ，Av=12V/V；
Mode
MODE1
MODE2
MODE3
MODE4
Enable
Signal
Gain（V/V）
16.3
16.3
16.3
16.3
12
12
12
12
NCN Power（W）
RL=8Ω
RL=4Ω
NCN
function
√
√
√
1.2
1
0.8
1.65W@THD=1%
4
2.25
2
1.6
2.15W@THD=1%
COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD.
AW8736 Data Sheet
May 2013 V1.5
High efficiency、Ultralow distortion、Constant large volume、Sixth
generation Class K Audio Amplifier
ELECTRICAL CHARACTERISTICS
Test condition：T
A
=25℃（unless otherwise noted）
Parameter
V
DD
V
IH
V
IL
|V
OS
|
I
SD
T
TG
T
TGR
T
SD
T
SDR
T
ON
Power supply voltage
SHDN
high input voltage
SHDN
low input voltage
Test conditions
Min
3.0
1.3
0
Typ
Max
5.0
V
DD
0.35
Units
V
V
V
mV
μA
℃
℃
℃
℃
ms
Output offset voltage
Shutdown current
Thermal AGC start
temperature threshold
Thermal AGC exit temperature
threshold
Over temperature protection
threshold
Over temperature protection
recovery threshold
Start-up time
Vin=0V，V
DD
=3.0V to 5.0V
V
DD
=3.6V，
SHDN
=0V
-30
0
30
1
150
130
160
130
40
K-Chargepump
V
DD
=3.0V to 3.8V
PVDD
Output voltage
V
DD
>3.8V
Vhys
F
CP
η
CP
T
ST
I
L
OVP hysteresis
Charge Pump frequency
Charge pump efficiency
Soft-start time
Current limit when PVDD short
to ground
V
DD
>3.8V
V
DD
=3.0V to 5.0V
V
DD
=4.2V, I
load
=200mA
No load，COUT=4.7uF
1
0.8
1.5*
VDD
5.8
50
1.06
92
1.2
350
1.4
1.33
V
V
mV
MHz
%
ms
mA
Class K power amplifier（mode1-mode4）
I
q
η
Fosc
Av
Rini
Quiescent current
Efficiency
Modulation frequency
gain
Inner input resistance
V
DD
=4.2V，R
L
=8Ω
Mode1 NCN output power
V
DD
=4.2V，R
L
=4Ω
V
DD
=4.2V，R
L
=8Ω
Pncn
Mode2 NCN output power
V
DD
=4.2V，R
L
=4Ω
V
DD
=4.2V，R
L
=8Ω
Mode3 NCN output power
V
DD
=4.2V，R
L
=4Ω
PSRR
Power supply rejection ratio
V
DD
=4.2V，Vp-p_sin=200mV
217Hz
-53
1.6
-65
W
dB
2
0.8
W
W
2.25
1
W
W
V
DD
=3.6V，Vin=0，no load
V
DD
=4.2V，Po=1.2W，R
L
=8Ω
V
DD
=3.0V to 5.0V
Outside input resistance=3kΩ
600
9.5
75
800
16.3
16.5
1.2
1000
mA
%
kHz
V/V
kΩ
W
COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD.
5
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