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LY8221_12

型号：

LY8221_12

品牌：

LYONTEK[ Lyontek Inc. ]

页数：

18 页

PDF大小：

954 K

下载PDF手册
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
FEATURES  
GENERAL DESCRIPTION  
„ 3.0W stereo into 4Ω from 5.5V power supply at  
THD+N = 10%.  
„ 2.5V~5.5V Power supply.  
„ Low shutdown Current.  
„ Low Quiescent Current.  
The LY8221 is a 3.0W stereo, high efficiency class  
D audio power amplifier. It is a low noise, filterless,  
PWM architecture eliminates the output filter,  
reducing external component count, BOM (system)  
cost, and simplify design.  
„ Minimum external components.  
„ No output filter required for inductive loads.  
„ Short-Circuit and Thermal Protection.  
(Short to GND, VDD. and output to output)  
„ Low noise during device turn-on.  
„ Support 3D enhance function.  
The LY8221 features a low power consumption in  
shutdown mode and thermal shutdown protection. It  
also utilizes circuitry to reduce low noise during  
device turn-on.  
The outputs are also fully protected against short to  
GND, VDD, and output-to-output. The short-circuit  
protection and thermal protection include an  
auto-recovery feature.  
„ Lead free and green package available.  
(RoHS Compliant)  
„ Package : 16-pin 150 mil SOP  
16-pin 5x5 QFN  
LY8221 support the 3D function. When selectable  
the 3D enhance mode function provides enhanced  
stereo imaging.  
APPLICATION  
„ Portable electronic devices.  
„ Mobile Phones.  
„ Multimedia TFT LCD TVs / Monitors.  
PIN CONFIGURATION  
LY8221 SOP16 Pin Configuration (Top View)  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
1
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
LY8221 QFN16 Pin Configuration (Top View)  
PIN DESCRIPTION  
Pin No.  
SOP16  
SYMBOL  
DESCRIPTION  
QFN16  
3D CONTROL  
3D_INL  
INL  
1
2
15  
16  
1
3D selection pin. (when HIGH level is 3D mode).  
3D Input of left channel.  
3
Input of left channel.  
Shutdown  
3D_INR  
INR  
4
2
Shutdown control pin. (when LOW level is shutdown mode).  
3D Input of right channel.  
5
3
6
4
Input of right channel.  
Bypass  
NC  
7
5
Bypass pin.  
8
6
No connection  
VDD  
9/16  
10  
7/14  
8
Power supply of left and right channel.  
Positive(+) BTL output of right channel.  
Ground  
Vo+(R)  
GND  
11/14  
12  
9/12  
10  
11  
13  
Vo-(R)  
Vo+(L)  
Vo-(L)  
Negative(-) BTL output of right channel.  
Positive(+) BTL output of left channel.  
Negative(-) BTL output of left channel.  
13  
15  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
2
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
ORDERING INFORMATION  
Feature  
3D  
Speaker  
Channels Package  
Pin/  
Output Power  
(THD+N=10%)  
Input Output  
Ordering Code  
Type  
Type  
3.0W/4Ω @5.5V_BTL  
2.5W/4Ω @5.0V_BTL  
1.8W/8Ω @5.5V_BTL  
1.5W/8Ω @5.0V_BTL  
LY8221SL  
LY8221EL  
Stereo  
Stereo  
SOP16  
QFN16  
SE  
BTL  
Yes  
Yes  
3.0W/4Ω @5.5V_BTL  
2.5W/4Ω @5.0V_BTL  
1.8W/8Ω @5.5V_BTL  
1.5W/8Ω @5.0V_BTL  
SE  
BTL  
TYPICAL APPLICATION CIRCUIT  
Figure 1. LY8221SL Typical Application Circuit with 3D  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
3
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
ABSOLUTE MAXIMUM RATINGS*  
PARAMETER  
Supply Voltage  
SYMBOL  
VDD  
RATING  
6.0  
UNIT  
V
℃
Operating Temperature  
Input Voltage  
TA  
-40 to 85 (I grade)  
-0.3V to VDD +0.3V  
-65 to 150  
Internally Limited  
2000  
VI  
V
℃
Storage Temperature  
Power Dissipation  
TSTG  
PD  
W
V
℃
℃
ESD Susceptibility  
VESD  
TJMAX  
TSOLDER  
Junction Temperature  
Soldering Temperature (under 10 sec)  
150  
260  
ELECTRICAL CHARACTERISTICS (TA = 25℃)  
TYP. *1  
-
SYMBOL  
TEST CONDITION  
MIN.  
2.5  
MAX. UNIT  
PARAMETER  
Power supply voltage  
5.5  
V
VDD  
VDD = 5.5V, No Load  
VDD = 3.6V, No Load  
VDD = 2.5V, No Load  
-
-
-
6.5  
5.5  
4.5  
-
-
-
Quiescent Current  
IQ  
mA  
≦
VSHUTDOWN  
V
0.8V,  
Shutdown Current  
ISD  
-
0.1  
-
A
µ
DD = 2.5V to 5.5V  
High-level input voltage  
Low-level input voltage  
VIH  
VIL  
Shutdown  
Shutdown  
1.2  
0
-
-
VDD  
0.4  
V
V
VI = 0 V, Av = 2 V/V,  
Output offset voltage  
-
-
25  
mV  
|VOS|  
VDD = 2.5 V to 5.5 V  
„
OPERATING CHARACTERISTICS (1)(TA = 25℃)  
PARAMETER  
TYP. *1  
SYMBOL  
TEST CONDITION  
MIN.  
MAX. UNIT  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3.0  
2.5  
1.25  
0.55  
2.5  
2.0  
1.0  
0.4  
1.8  
-
-
-
-
-
-
-
-
VDD=5.5V  
VDD=5.0V  
VDD=3.6V  
VDD=2.5V  
VDD=5.5V  
VDD=5.0V  
VDD=3.6V  
VDD=2.5V  
VDD=5.5V  
VDD=5.0V  
VDD=3.6V  
VDD=2.5V  
VDD=5.5V  
VDD=5.0V  
VDD=3.6V  
VDD=2.5V  
THD+N=10%  
THD+N=1%  
THD+N= 10%  
RL= 4Ω  
f = 1 kHz,  
Out Power / Channel  
PO  
W
-
1.5  
-
-
-
-
-
-
-
0.75  
0.35  
1.45  
1.2  
0.6  
0.25  
RL= 8Ω  
f = 1 kHz,  
THD+N= 1%  
(*1)Typical values are included for reference only and are not guaranteed or tested.  
Typical values are measured at VCC = VCC(TYP.) and TA = 25℃  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
4
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
„
OPERATING CHARACTERISTICS (2)(TA = 25℃)  
TYP. *1  
-100  
85  
SYMBOL  
TEST CONDITION  
MIN.  
MAX. UNIT  
PARAMETER  
VDD = 3.6 V, RL = 8Ω  
VDD=3.6V  
VDD=5.0V  
Crosstalk  
Cs  
-
-
-
-
dB  
dB  
f=1kHz,  
Signal-to-noise ratio  
SNR PO= 1.0 W, RL = 8Ω  
VDD = 5.0 V, RL = 8Ω,  
f = 20 Hz to 20 kHz,  
Vn  
No  
Output voltage noise  
-
100  
-
uVRMS  
Inputs ac-grounded with  
weighting  
Ci = 0.22 μF  
Cbypass = 2.2μF  
-
-
-
-
-
-
-
-
-
-
-
-
316  
272  
96  
60  
36  
244  
192  
76  
40  
36  
-
-
-
-
-
-
-
-
-
-
-
-
Cbypass = 1.0μF  
Cbypass = 0.47μF  
Cbypass =0.1μF  
VDD = 5.0V  
C
bypass =56nF  
Start-up time from shutdown  
ZI  
ms  
Cbypass = 2.2μF  
Cbypass = 1.0μF  
Cbypass = 0.47μF  
Cbypass =0.1μF  
VDD = 3.7V  
C
bypass =56nF  
VDD=2.5V~5.5V  
VDD = 2.5V to 5.5V  
kHz  
Frequency  
Fc  
230  
150kΩ/Ri  
Closed-loop Gain  
Gv  
(*1)Typical values are included for reference only and are not guaranteed or tested.  
Typical values are measured at VCC = VCC(TYP.) and TA = 25℃  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
5
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
TYPICAL PERFORMANCE CHARACTERISTICS  
Figure 2  
Total Harmonic Distortion + Noise vs Output Power (RL = 4Ω, Stereo)  
Figure 3  
Total Harmonic Distortion + Noise vs Output Power (RL = 8Ω, Stereo)  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
6
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
Figure 4  
Noise Floor (VDD=5.0V / RL=8Ω)  
Figure 5  
Crosstalk (VDD=3.6V / RL=8Ω)  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
7
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
Supply Current vs Output Power (8Ω)  
Supply Current vs Output Power (4Ω)  
SUPPLY CURRENT  
vs OUTPUT POWER  
SUPPLY CURRENT  
vs OUTPUT POWER  
500  
1000  
900  
800  
700  
600  
500  
400  
300  
200  
100  
0
400  
300  
200  
100  
0
2.5V  
3.6V  
5V  
2.5V  
3.6V  
5V  
0
0.2 0.4 0.8 1.2 1.6  
2
2.4 2.8  
3
0
0.2 0.4 0.6 0.8  
1 1.2 1.4 1.6 1.8 2  
Po-Output Pow er-W  
RL=4 ohm  
Po-Output Pow er-W  
RL=8 ohm  
Output Power vs RL (THD+N = 1%)  
Output Power vs RL (THD+N = 10%)  
OUTPUT POWER vs RL (THD+N = 1%)  
Output Power vs RL (THD+N = 10%)  
2.5  
2
3
2.5  
2
2.5v  
3v  
1.5  
1
2.5v  
3v  
1.5  
1
3.6v  
5v  
3.6v  
5v  
0.5  
0
0.5  
0
4Ω  
8Ω  
12Ω  
16Ω  
20Ω  
24Ω  
28Ω  
32Ω  
4Ω  
8Ω  
12Ω  
16Ω  
20Ω  
24Ω  
28Ω  
32Ω  
RL  
RL  
Output Power vs Supply Voltage (8Ω)  
Output Power vs Supply Voltage (4Ω)  
OUTPUT POWER vs SUPPLY VOLTAGE  
OUTPUT POWER vs SUPPLY VOLTAGE  
THD+N=10%  
THD+N=1%  
THD+N=10%  
THD+N=1%  
2.5  
4.5  
4
2
1.5  
1
3.5  
3
2.5  
2
1.5  
1
0.5  
0
0.5  
0
2.5  
3.6  
5
5.5  
6
2.5  
3.6  
5
5.5  
6
VDD-Supply Voltage-V  
VDD-Supply Voltage-V  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
8
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
Shutdown vs Shutdown Voltage  
Quiescent Current vs Supply Voltage  
Quiescent Current vs Supply Voltage  
SHUTDOWN CURRENT  
vs  
SHUTDOWN VOLTAGE  
10  
9
160  
140  
120  
100  
80  
8
7
2.5v  
3.6v  
5v  
No Load  
8Ω  
6
60  
5
40  
4
20  
3
0
2.5  
3
3.5  
4
4.5  
5
5.5  
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9  
VDD-Supply Voltage-V  
Shutdown Voltage - V  
Efficiency vs Po(RL=8 ohm) VDD=3.6V  
Efficiency vs Po(RL=8 ohm)  
Efficiency vs Po(RL=8 ohm) VDD=5.0V  
Efficiency vs Po(RL=8 ohm)  
VDD=5V  
VDD=3.6V  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
0
0.1  
0.2  
0.3  
0.4  
0.5  
0
0.2  
0.4  
0.6  
0.8  
1
1.2  
1.4  
Po-W  
Po-W  
Power Dissipation vs Output Power  
Pd vs Po ( 2CH ) (RL=8 ohm)  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
Pd(5V)  
Pd(3.6V)  
0
0.2  
0.4  
0.6  
0.8  
1
1.2  
1.4  
Po-W  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
9
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
FCC Class-B (Vertical) – Stereo Mode  
FCC Class-B (Horizontal) – Stereo Mode  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
10  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
FCC Class-B (Vertical) – 3D Mode  
FCC Class-B (Horizontal) – 3D Mode  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
11  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
„
APPLICATION INFORMATION  
Input Resistors (Ri) and Gain  
The LY8221 has two internal amplifier stages. The pre-amplifier gain is externally configurable, while the total  
gain is internally fixed. The closed-loop gain of the pre-amplifier gain is set by selecting the Rf to Ri while the  
total gain is fixed at 2x. So the input resistors (Ri) set the gain of the amplifier according to the equation.  
Pre-Amplifier Gain = Rf / Ri  
Total Gain = (Rf / Ri ) x 2  
AVD = 20 x log [2 x (Rf /Ri )]  
The resistor matching is very important in the amplifiers. Balance of the output on the reference voltage  
depends on matched ratio of the resistors. CMRR, PSRR, and cancellation of the second harmonic distortion  
if resistor mismatch occurs. Therefore, it is recommended to use 1% tolerance resistors or better to keep the  
performance optimized. Matching is more important than overall tolerance.  
Resistor arrays with 1% matching can be used with a tolerance greater than 1%.Place the input resistors very  
close to the LY8221 to limit noise injection on the high-impedance nodes. For optimal performance the gain  
should be set to 2 V/V or lower. Lower gain allows the LY8221 to operate at its best,  
For example  
Table 1. Typical Total Gain and AVD Values  
Rf (KΩ)  
Ri (KΩ)  
150  
150  
1
150  
75  
150  
50  
150  
37.5  
4
150  
25  
150  
18.75  
8
Pre AMP. Gain  
Total Gain  
AVD (db)  
2
3
6
2
4
6
8
12  
16  
6.02  
12.04  
15.56  
18.06  
21.58  
24.08  
Input Capacitors (Ci)  
The LY8221 using fully differential source, So the input coupling capacitors are required. The input capacitors  
and input resistors form a high-pass filter with the corner frequency(fc), determined in the equation.  
fc = 1 / ( 2πRi Ci )  
The value of the input capacitor is important to consider as it directly affects the bass (low frequency)  
performance of the circuit. Speakers in wireless phones cannot usually respond well to low frequencies, so  
the corner frequency can be set to block low frequencies in this application. Equation is reconfigured to solve  
for the input coupling capacitance.  
Ci = 1 / ( 2πRi fc )  
If the corner frequency is within the audio band, the capacitors should have a tolerance of ±10% or better,  
because any mismatch in capacitance causes an impedance mismatch at the corner frequency and below.  
For example  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
12  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
In the table 2 shows the external components. Rin in connect with Cin to create a high-pass filter.  
Table 2. Typical Component Values  
Reference  
Description  
Note  
Ri  
Ci  
150KΩ  
0.22uF  
1% tolerance resistors  
80%/–20%  
Ci = 1 / ( 2πRi fc)  
Ci = 1 / ( 2π x 150KΩ x 4.8Hz)=0.221uF，Use 0.22uF  
Decoupling Capacitor (CS)  
The LY8221 is a high-performance class-D audio amplifier that requires adequate power supply decoupling to  
ensure the efficiency is high and total harmonic distortion (THD) is low. For higher frequency transients,  
spikes, or digital hash on the line, a good low equivalent-series-resistance (ESR) ceramic capacitor, typically  
1.0uF, placed as close as possible to the device VDD lead works best. Placing this decoupling capacitor close  
to the LY8221 is very important for the efficiency of the class-D amplifier, because any resistance or  
inductance in the trace between the device and the capacitor can cause a loss in efficiency. For filtering  
lower-frequency noise signals, a 10.0uF or greater capacitor placed near the audio power amplifier would also  
help, but it is not required in most applications because of the high PSRR of this device.  
Over-Heat Protection  
The LY8221 has a built-in over-heat protection circuit, it will turn off all power output when the chip  
temperature over 150℃, the chip will return to normal operation automatically after the temperature cool down  
to 120℃.  
3D Enhance  
The LY8221 has a built-in 3D enhance effect that widens the perceived soundstage from the stereo audio  
signal. The 3D enhance improves the apparent stereo channel separation whenever the left and right  
speakers are too close, due to system size constraints or equipment limitations.  
Activating the 3D effect by applying VDD to pin 1 (3D Control) and external RC network (Shown in figure 1) is  
required to enable the 3D effect. The amount of the 3D effect is set by the R3 and C3. Decreasing the value of  
R3 will increase the 3D effect. Increasing the value of the capacitors C3 will decrease the low cutoff frequency  
at which the 3D effect starts to occur.The amount of perceived 3D is also dependent on many other factors  
such as speaker placement and the distance to the listener. Therefore,it is recommended that the user try  
various values of R3 and C3 to get a feel for how the 3D effect works in the application.  
PCB Layout  
All the external components must place very close to the LY8221. The input resistors need to be very close to  
the LY8221 input pins so noise does not couple on the high impedance nodes between the input resistors and  
the input amplifier of the LY8221. Then place the decoupling capacitor Cs, close to the LY8221 is important  
for the efficiency of the class-D amplifier. Any resistance or inductance in the trace between the device and  
the capacitor can cause a loss in efficiency.  
Making the high current traces going to VDD, GND, VO+ and VO- pins of the LY8221 should be as wide as  
possible to minimize trace resistance. If these traces are too thin, the LY8221's performance and output  
power will decrease. The input traces do not need to be wide, but do need to run side-by-side to enable  
common-mode noise cancellation.  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
13  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
„
DEMO BOARD INFORMATION  
Demo Board Application Circuit (BTL)  
VDD  
L5  
C0805  
600R/100MHz  
J14  
1
2
JUMPER  
Vcc  
J15  
C5  
C0805 C0805  
0.1uF 10uF  
C6  
1
2
L6  
C0805  
JUMPER  
Vss  
R4  
600R/100MHz  
GND  
150k  
U1  
R0805  
J2  
1
2
1
2
3
4
5
6
7
8
16  
J10  
3D  
PVDD2  
1
2
JUMPER  
L1  
C0805  
JUMPER  
R3  
R0805  
15  
14  
13  
12  
11  
10  
9
3D_LIN  
LIN-  
LOUT-  
PVSS2  
LOUT+  
ROUT-  
PVSS1  
ROUT+  
PVDD1  
C12  
C0603  
1nF  
600R/100MHz  
30k  
2
3
4
5
1
J4  
C2  
C0805  
R2  
R0805  
C11  
C0603  
1nF  
150k  
0.22uF  
C13  
C0603  
1nF  
L2  
C0805  
J1  
J3  
2
3
4
5
1
1
2
PHONEJACK  
SDB  
JUMPER  
JUMPER  
600R/100MHz  
C3  
Vss  
1
1
2
2
J11  
J12  
Vss  
C0805  
L3  
C0805  
150k  
R5 R0805  
3D_RIN  
RIN-  
JUMPER  
1uF  
PHONEJACK  
C15  
C0603  
1nF  
2
3
4
5
1
J5  
C1  
600R/100MHz  
R1  
R0805  
C0805  
Vss  
C14  
150k  
0.22uF  
C0603  
1nF  
C4 C0805  
C16  
C0603  
1nF  
L4  
C0805  
Vss  
PHONEJACK  
BYPASS  
Vss  
1uF  
600R/100MHz  
J13  
NC  
1
2
JUMPER  
LY8221SL-V1.1  
Figure 2 LY8221SL Demo Board Application Circuit  
Demo Board BOM List  
LY8221SL (BTL) V1.1 BOM List  
No.  
Description  
Resistor, 30KΩ  
Reference  
Note  
1/16W,1%  
1/16W,1%  
1
2
3
4
5
6
7
8
9
R3  
Resistor, 150KΩ  
R1,R2,R4,R5  
C12,C13,C15,C16  
C11,C14  
C5  
Capacitor, 330pF(Option)  
Capacitor, 390pF(Option)  
Capacitor, 0.1uF  
80%/−20%, nonpolarized  
80%/−20%, nonpolarized  
80%/−20%, nonpolarized  
80%/−20%, nonpolarized  
80%/−20%, nonpolarized  
80%/−20%, 6.3 V  
Capacitor, 0.22uF  
Capacitor, 1.0uF  
C1,C2  
C3,C4  
Capacitor, 10.0uF  
C6  
1000Ω(1KΩ)±25%/100MHz  
Chip Bead 1KΩ/100MHz(Option) L1,L2,L3,L4,L5,L6  
10 IC  
1*2 Pin Header  
U1  
LY8212SL, SOP16  
J1 Open Æ shutdown  
J2 Short Æ 3D enable  
8
J1,J2  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
14  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
Demo Board Artwork  
Top Silkscreen  
Top Layer  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
15  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
Bottom Layer  
Composite view  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
16  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
PACKAGE OUTLINE DIMENSION  
SOP 16 Pin Package Outline Dimension  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
17  
®
LY8221  
Rev. 1.3  
3.0W Stereo & 3D Enhancement Class D Audio Power Amplifier (SOP16)  
QFN(5x5) 16 Pin Package Outline Dimension  
Lyontek Inc. reserves the rights to change the specifications and products without notice.  
5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan  
TEL: 886-3-6668838  
FAX: 886-3-6668836  
18  
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