®
LY8009
Rev. 1.3
5.5W Mono Filterless Class D Audio power Amplifier
FEATURES
GENERAL DESCRIPTION
5.5W Into 2Ω from 5.5V power supply at
THD+N = 10% (Typ).
3.6W Into 4Ω from 5.5V power supply at
THD+N = 10% (Typ).
2.5V~5.5V power supply.
Low shutdown current.
Low quiescent current.
Short-circuit protection and automatic recovery.
Over-heat protection and automatic recovery.
Minimum external components.
No output filter required for inductive loads.
Low noise during turn-on and turn-off transitions.
Lead free and green package available.
(RoHS Compliant)
Package : 8pin 150mil ESOP available.
The LY8009 is a high efficiency, 5.5W mono class D
audio power amplifier. It is a low noise, filterless
PWM architecture eliminates the output filter,
reducing external component count, system cost,
and simplify design.
The LY8009 is designed to meet of portable
electronic devices and mini speaker system. In
cellular handsets, the earpiece, speaker phone, and
melody ringer can each be driven by the LY8009.
The device is a single 5.5V power supply, it is
capable of driving 2Ω speaker load at a continuous
average output of 5.5W with 10% THD+N.
The gain of the LY8009 is externally configurable
which allows independent gain control from multiple
sources by summing the signals.
The device also features an internal thermal
shutdown protection and output pin short circuit
protection prevent the device from damage during
fault conditions.
APPLICATION
Portable electronic devices
USB audio, Audio System.
Mini combo system, PDAs
PIN CONFIGURATION
LY8009 ESOP8 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
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
PIN DESCRIPTION
SYMBOL
Pin No.
DESCRIPTION
ESOP
SHUTDOWN
1
Shutdown control pin.(Low enable the device)
BYPASS
2
Bypass pin.
AVDD
3
Analog power supply.
IN
4
Audio input pin.
Vo-
5
Negative BTL output.
VDD
6
Power supply.
GND
7
Ground.
Vo+
8
Positive BTL output.
ORDERING INFORMATION
Ordering
Code
LY8009VLT
Packing
Type
Tape&Reel
Speaker
Channels
Mono
Pin/
Package
Output Power
(THD+N=10%)
Input
Type
Output
Type
ESOP8
5.5W/2Ω @5.5V_BTL
4.5W/3Ω @5.5V_BTL
3.6W/4Ω @5.5V_BTL
2.0W/8Ω @5.5V_BTL
SE
BTL
*1 ESOP Æ with thermal pad.
APPLICATION CIRCULT
Figure 1. LY8009 Application Circuit
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
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Operating Temperature
Input Voltage
Storage Temperature
Power Dissipation
ESD Susceptibility
Junction Temperature
Soldering Temperature (under 10 sec)
SYMBOL
VDD
RATING
6.0
UNIT
V
TA
-40 to 85 ( I grade)
℃
VI
TSTG
PD
VESD
TJMAX
TSOLDER
-0.3V to VDD +0.3V
-65 to 150
Internally Limited
2000
150
260
V
℃
W
V
℃
℃
ELECTRICAL CHARACTERISTICS (TA = 25℃)
PARAMETER
Supply voltage
SYMBOL
VDD
Quiescent Current
IQ
Shutdown Current
ISD
Shutdown voltage input high
Shutdown voltage input low
TEST CONDITION
VDD = 5.5V, No Load
VDD = 3.7V, No Load
VDD = 2.5V, No Load
VSHUTDOWN ≦0.8V,
VDD = 2.5V to 5.5V
VSDIH
VSDIL
VI = 0 V, Av = 2 V/V,
VDD = 2.5 V to 5.5 V
Shutdown temp.
Thermal shutdown temperature
TSD
Restore temp.
*1
Gv
VDD= 2.5V to 5.5V
Total Gain
(*1)The audio amplifier’s gain is determined by：
Output offset voltage
VOS
MIN.
2.5
-
TYP.
4.0
3.5
3.0
MAX.
5.5
-
UNIT
V
mA
-
0.1
-
µA
1.4
-
-
0.3
V
-
-
50
mV
145
120
[150KΩ / (5KΩ+Ri)] x4
Pre-Amplifier Gain = [150KΩ / ( 5KΩ + Ri )] x 2
Total Gain = {[150KΩ / ( 5KΩ + Ri )] x 2} x 2
where Ri is the external serial resistance at the input pin.
(*2)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
3
*2
℃
V/V
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
OPERATING CHARACTERISTICS (1)(TA = 25℃)
PARAMETER
SYMBOL
TEST CONDITION
VDD=5.5V
THD+N= 10%, f = 1 kHz,
RL= 2Ω
VDD=5.0V
VDD=3.7V
VDD=2.5V
VDD=5.5V
THD+N= 1%, f = 1 kHz,
RL= 2Ω
VDD=5.0V
VDD=3.7V
VDD=2.5V
VDD=5.5V
THD+N= 10%, f = 1 kHz,
RL= 4Ω
Output Power
VDD=5.0V
VDD=3.7V
VDD=2.5V
PO
VDD=5.5V
THD+N= 1%, f = 1 kHz,
RL= 4Ω
VDD=5.0V
VDD=3.7V
VDD=2.5V
VDD=5.5V
THD+N= 10%, f = 1 kHz,
RL= 8Ω
VDD=5.0V
VDD=3.7V
VDD=2.5V
VDD=5.5V
THD+N= 1%, f = 1 kHz,
RL= 8Ω
VDD=5.0V
VDD=3.7V
VDD=2.5V
Power supply rejection ratio
Signal-to-noise ratio
Output voltage noise
Efficiency
Frequency
PSRR
SNR
Vn
η
Fc
MIN.
-
VDD=5.0V, Input=GND.
f=1KHz
Ri=51K, Ci=0.1μF.
f=217Hz
RL=4Ohm,
RL = 8Ω, Input=GND,
VDD=5.0V
1.0W=0dB
VDD=5.0V,Input=GND, Load=4Ω,
Ri=150K,Ci=0.1uF,
f = 20 Hz to 20 kHz,
VDD=5.0V,Input=GND, Load=4Ω,
Ri=51K,Ci=0.1uF,
f = 20 Hz to 20 kHz,
VDD=5.0V,f=1kHz,RL=4Ω,
Output power =3.0W
VDD=3.7V,f=1kHz,RL=4Ω,
Output power =1.6W
VDD=5.0V,f=1kHz,RL=2Ω,
Output power =4.5W
VDD=3.7V,f=1kHz,RL=2Ω,
Output power =2.4W
VDD=2.5V~5.5V
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
TYP.
5.5
4.5
2.5
1.0
4.5
3.6
2.0
0.8
3.6
3.0
1.6
0.7
2.9
2.4
1.3
0.5
2.1
1.7
0.9
0.4
1.6
1.4
0.7
0.3
*2
MAX.
-
-
-55
-
-
-54
-
-
80
-
-
181
-
UNIT
W
dB
dB
uV
-
274
-
-
85
-
-
85
-
-
77
-
-
77
-
-
210
-
%
kHz
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
OPERATING CHARACTERISTICS (2) (TA = 25℃)
PARAMETER
Start-up time from shutdown
SYMBOL
ZI
TEST CONDITION
Voltage
Cbypass Cap.
Cbypass = 4.7μF
Cbypass = 2.2μF
Cbypass = 1.0μF
VDD = 5.0V
Cbypass =0.47μF
Cbypass = 0.22μF
Cbypass =None
Cbypass = 4.7μF
Cbypass = 2.2μF
Cbypass = 1.0μF
VDD = 3.7V
Cbypass =0.47μF
Cbypass = 0.22μF
Cbypass =None
MIN.
-
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
TYP.
*2
200
96
84
40
20
20
156
80
72
36
22
20
MAX.
UNIT
-
ms
®
LY8009
Rev. 1.3
5.5W Mono Filterless Class D Audio power Amplifier
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 2
Total Harmonic Distortion + Noise vs Output Power (2Ω)
Figure 3
Total Harmonic Distortion + Noise vs Output Power (4Ω)
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
®
LY8009
Rev. 1.3
5.5W Mono Filterless Class D Audio power Amplifier
Figure 4
Total Harmonic Distortion + Noise vs Output Power (8Ω)
Figure 5
Frequency Response
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
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®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
Icc Current vs. Shutdown Voltage
Quiescent Current vs. Supply Voltage
QUIESCENT CURRENT vs SUPPLY VOLTAGE
Icc CURRENT vs SHUTDOWN VOLTAGE
7
16
2.5V
14
Iq-Quiescent Current-mA
12
Icc Current - uA
6
3.7V
5V
10
8
6
4
2
5
4
3
No Load
2
8Ω
1
4Ω
0
2Ω
0
0.1
0.2
0.3
0.4
0.5
0.6
0
0.7
2.5
Shutdown Voltage - V
3
Supply Current vs. Output Power (RL=2Ω)
5.5
6
900
2.5V
2.5V
800
3.7V
3.7V
5V
700
5V
Supply Current - mA
Supply Current-mA
5
SUPPLY CURRENT vs OUTPUT POWER
1400
1000
4.2
Supply Current vs. Output Power (RL=3Ω)
SUPPLY CURRENT vs OUTPUT POWER
1200
3.7
VDD-Supply Voltage-V
800
600
400
600
500
400
300
200
200
100
0
0
0 0.2 0.4 0.8 1.2 1.6 2 2.4 2.8 3 3.2 3.6 4 4.4 4.6
0
0.2
0.4
Supply Current vs. Output Power (RL=4Ω)
3.7V
400
5V
350
Supply Current - mA
Supply Current - mA
2
2.4
2.8
3
3.2
3.6
SUPPLY CURRENT vs OUTPUT POWER
450
2.5V
600
1.6
Supply Current vs. Output Power (RL=8Ω)
SUPPLY CURRENT vs OUTPUT POWER
700
1.2
Po - Output Power - W (RL=3Ω)
Po-Output Power-W (RL=2Ω)
800
0.8
500
400
300
200
2.5V
3.7V
5V
300
250
200
150
100
100
50
0
0
0
0.2
0.4
0.8
1.2
1.6
2
2.4
2.8
0
3
0.2
0.4
0.6
0.8
1
1.2
Po - Output Power - W (RL=8Ω)
Po - Output Power - W (RL=4Ω)
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
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1.4
1.6
1.8
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
Load Resistance vs. Output Power (THD+N=10%)
Load Resistance vs. Output Power (THD+N=1%)
Output Power vs Load Resistance
Output Power vs Load Resistance
6
5
2.5v
5
3.7V
4.5
5V
4
5.5V
3.7V
5V
5.5V
3.5
P o -O u tp u t P o w e r
P o -O u t p u t P o w e r
4
2.5v
3
3
2.5
2
2
1.5
1
1
0.5
0
0
2Ω
3Ω
4Ω
8Ω
12Ω
16Ω
20Ω
24Ω
28Ω
2Ω
32Ω
3Ω
4Ω
8Ω
4
24Ω
28Ω
32Ω
OUTPUT POWER vs SUPPLY VOLTAGE
5
4.5
THD+N=10%
THD+N=1%
4
3.5
3
2.5
2
1.5
1
0.5
0
2.5V
6V
3.7V
4.2V
5V
5.5V
VDD-Supply Voltage-V (3Ω)
6V
Output Power vs. VDD (RL=8Ω)
OUTPUT POWER vs SUPPLY VOLTAGE
OUTPUT POWER vs. SUPPLY VOLTAGE
2.8
THD+N=10%
THD+N=1%
2.4
Po-Output Power
3.5
Po-Output Power
20Ω
5.5
Output Power vs. VDD (RL=4Ω)
4.5
16Ω
Output Power vs. VDD (RL=3Ω)
Po-Output Power
Po-Output Power
Output Power vs. VDD (RL=2Ω)
OUTPUT POWER vs SUPPLY VOLTAGE
7
THD+N=10%
6.5
THD+N=1%
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
2.5V
3.7V
4.2V
5V
5.5V
VDD-Supply Voltage-V (2Ω)
12Ω
Load Resistance
Load Resistance
3
2.5
2
1.5
THD+N=10%
THD+N=1%
2
1.6
1.2
0.8
1
0.4
0.5
0
2.5V
3.7V
4.2V
5V
5.5V
VDD-Supply Voltage-V (4Ω)
0
2.5V
6V
3.7V
4.2V
5V
5.5V
VDD-Supply Voltage-V (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
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6V
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
Efficiency vs. Output Power (2Ω) 3.7V
Efficiency vs. Output Power (2Ω) 5.0V
Efficiency vs Output Power(W) (RL=2Ω)
Efficiency vs Output Power (W)(RL=2Ω)
90
90
VDD=3.7V
80
70
60
Efficiency(%)
Efficiency(%)
VDD=5V
80
70
50
40
30
60
50
40
30
20
20
10
10
0
0
0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
0
0.6 1.2
Po-Output Power(W)
Efficiency vs. Output Power (3Ω) 3.7V
3.6
4.2 4.8
Efficiency vs Output Power (W)(RL=3Ω)
Efficiency vs Output Power (W)(RL=3Ω)
90
80
80
VDD=3.7V
70
60
50
40
30
60
50
40
30
20
20
10
10
0
0
0
0.25 0.5 0.75 1 1.25 1.5 1.75
Po-Output Power(W)
VDD=5V
70
Efficiency(%)
Efficiency(%)
3
Efficiency vs. Output Power (3Ω) 5.0V
90
0
2
1
1.5
2
2.5
3
3.5
4
Efficiency vs. Output Power (4Ω) 5.0V
Efficiency vs Output Power (W)(RL=4Ω)
Efficiency vs Output Power (W)(RL=4Ω)
90
90
VDD=3.7V
80
0.5
Po-Output Power(W)
Efficiency vs. Output Power (4Ω) 3.7V
VDD=5V
80
70
70
Efficiency(%)
Efficiency(%)
1.8 2.4
Po-Output Power(W)
60
50
40
30
60
50
40
30
20
20
10
10
0
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Po-Output Power(W)
0
0.4
0.8
1.2
1.6
2
2.4
Po-Output Power(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
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2.8
3.2
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
Dissipation vs. Output Power (2Ω)
Dissipation vs. Output Power (3Ω)
POWER DISSIPATION vs OUTPUT POWER
POWER DISSIPATION vs OUTPUT POWER
1.6
P D - P ower Dis s ipation - W
(5V)
(3.7V)
1.4
P d -P o w e r D is s ip a tio n -W
1
1.2
1
0.8
0.6
0.4
0.2
5V
3.7V
0.8
0.6
0.4
0.2
0
0
0
0.6
1.2
1.8
2.4
3
3.6
4.2
4.8
Po-Output Power - W RL=2Ω
0
0.5
1
1.5
2
2.5
3
Po - Output Power - W RL=3Ω
Dissipation vs Output Power (4Ω)
POWER DISSIPATION vs OUTPUT POWER
P D - P ower Dis s ipation - W
1
5V
3.7V
0.8
0.6
0.4
0.2
0
0
0.4
0.8
1.2
1.6
2
2.4
2.8
3.2
Po - Output Power - W RL=4Ω
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
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3.5
4
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
APPLICATION INFORMATION
Input Resistors (Ri) and Gain
The input resistors (Ri) set the gain of the amplifier according to the equation.
Pre-Amplifier Gain = (Rf / Ri) x 2 = [150KΩ / ( 5KΩ + Ri )] x 2
Total Gain = [(Rf / Ri) x 2] x 2 = {[150KΩ / ( 5KΩ + Ri )] x 2} x 2
AVD = 20 x log {2 x [(Rf /Ri ) x2]}
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 LY8009 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 LY8009 to operate at its best,
For example
Table 1. Typical Total Gain and AVD Values
Rf (KΩ)
150
150
150
150
150
150
Ri (KΩ)
300
150
100
75
50
37.5
Pre AMP. Gain
1
2
3
4
6
8
Total Gain
2
4
6
8
12
16
AVD (dB)
6.02
12.04
15.56
18.06
21.58
24.08
Input Capacitors (Ci)
The LY8009 using a single-ended 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.
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
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
For example
In the table 2 shows the external components. Rin in connect with Cin to create a high-pass filter.
Table 2. Reference Component Values
Reference
Description
Note
Ri
150KΩ
1% tolerance resistors
Ci
0.22uF
80%/–20%
Ci = 1 / ( 2πRi fc)
Ci = 1 / ( 2π*150KΩ*4.8Hz)=0.221uF，Use 0.22uF
Two Single-Ended Input Signals
Two resistors and two capacitors are needed for summing single-ended input signals. The gain and corner
frequencies (fc1 and fc2) for each input source can be set independently.
Pre-Amplifier Gain 1 = [150KΩ / ( 5KΩ + Ri1 )] x 2
Pre-Amplifier Gain 2 = [150KΩ / ( 5KΩ + Ri2 )] x 2
Ci1 = 1 / ( 2πRi1 fc1 )
Ci2 = 1 / ( 2πRi2 fc2 )
Figure 6. Application Schematic With Two Single-Ended Inputs Configuration
Bypass Capacitor (Cbypass)
The Bypass Capacitor (C3 ) is the most critical capacitor. During start-up or recovery from shutdown mode,
Cbypass determines the rate at which the amplifier starts up. The Cbypass will to reduce noise caused by the
power supply coupling into the output drive signal. This noise is from the internal analog reference to the
amplifier, which appears as degraded the PSRR and THD+N values. The bypass capacitor (C3 ) with values
of 1.0μF to 4.7μF is recommended for the best THD and noise performance. Therefore, increasing the bypass
capacitor reduces clicking and popping noise from power on/off and entering and leaving shutdown.
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
®
LY8009
Rev. 1.3
5.5W Mono Filterless Class D Audio power Amplifier
Shutdown Function
When the LY8009 not in use. The device will be to turn off the amplifier to reduce power consumption. When
logic low is applied to the shutdown pin, this shutdown feature will turns the amplifier off. By switching the
shutdown pin connected to GND, the device supply current draw will be minimized in idle mode.
Over-Heat Protection
The LY8009 has a built-in over-heat protection circuit, it will turn off all power output when the chip
temperature over 145℃, the chip will return to normal operation automatically after the temperature cool down
to 120℃.
Short-circuit Protection
The LY8009 has short circuit protection circuitry on the outputs to prevent damage when output-to-output
short occurs. When a short circuit is detected on the outputs, the outputs are disabled immediately. If the short
was removed, the device activates again.
PCB Layout
All the external components must place very close to the LY8009. The input resistors need to be very close to
the LY8009 input pins so noise does not couple on the high impedance nodes between the input resistors and
the input amplifier of the LY8009. Then place the decoupling capacitor C4, close to the LY8009 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 LY8009 should be as wide as
possible to minimize trace resistance. If these traces are too thin, the LY8009'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.
I
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
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
DEMO BOARD INFORMATION
Demo Board Application Circuit :
Demo Board BOM List
LY8009 V1.0 BOM List
No.
Description
Reference
Note
1
Resistor, 100KΩ
R9
1/16W,1%
2
Resistor, 51KΩ
R1
1/16W,1%
3
Resistor, 100Ω
R56
1/16W,1%
4
Capacitor, 0.1uF
C1,C4,C56
80%/−20%, nonpolarized
5
Capacitor, 4.7uF
C3
80%/−20%, nonpolarized
6
Capacitor, 220.0uF
C6
25V,105℃,8x11,EC Cap.
7
IC
U1
LY8009VL, ESOP8
J6
C12,C13
C11
Pitch 2.54 mm
80%/−20%, nonpolarized
80%/−20%, nonpolarized
L1,L2
1000Ω(1KΩ)±25%/100MHz
R2,C2
No Components
8 1*2 Pin Header
9 Capacitor, 330pF(Option)
10 Capacitor, 390pF(Option)
Chip Bead
11
1KΩ/100MHz(Option)
12 NC
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
®
LY8009
5.5W Mono Filterless Class D Audio power Amplifier
Rev. 1.3
LY8009 Demo Board Artwork
Top Silkscreen
Top Layer
Composite view
Bottom 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
16
®
LY8009
Rev. 1.3
5.5W Mono Filterless Class D Audio power Amplifier
PACKAGE OUTLINE DIMENSION
8 Pin ESOP (150mil) 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