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LY8006BL

型号：

LY8006BL

描述：

1.4 3W单声道无滤波器D类音频功率放大器（ MSOP / DFN ） - 兼容LY8890 / 8891 / 8891B单端输入[ 1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN) －Compatible with LY8890/8891/8891B Single-Ended Input ]

品牌：

LYONTEK[ Lyontek Inc. ]

页数：

16 页

PDF大小：

1450 K

下载PDF手册
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
FEATURES  
GENERAL DESCRIPTION  
„ 1.4 W Into 8Ω from 5V power supply at  
THD = 10% (Typ).  
„ 2.5V~5.5V power supply.  
„ Low shutdown current.  
„ Low quiescent current.  
The LY8006 is a high efficiency, 1.4 W 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.  
„ Minimum external components.  
„ No output filter required for inductive loads.  
„ Output Pin Short-Circuit Protection (Short to  
Output Pin, Short to GND, Short to VCC)  
„ Low noise during turn-on and turn-off transitions.  
„ Easy upgrade Class AB (LY8990/LY8891)  
to Class D (Pin to Pin Replace).  
The LY8006 is designed to meet of portable  
electronic devices. The LY8006 is a single 5V  
supply, it is capable of driving 8Ω speaker load at a  
continuous average output of 1.4 W with 10%  
THD+N. The LY8006 has high efficiency with  
speaker loads compared to a typical Class AB  
amplifier. With a 3.6V supply driving an 8Ω speaker,  
the LY8006 efficiency for a 400mW power level is  
88%.  
„ Lead free and green package available.  
(RoHS Compliant)  
„ Space Saving Package  
- 8-pin MSOP package.  
In cellular handsets, the earpiece, speaker phone,  
and melody ringer can each be driven by the  
LY8006.The gain of the LY8006 is externally  
configurable which allows independent gain control  
from multiple sources by summing the signals.  
Output pin short circuit ( short to output pin, short to  
ground and short to VDD ) protection prevent the  
device from damage during fault conditions.  
- 8-pin DFN package  
APPLICATION  
„ Portable electronic devices  
„ Mobile Phones  
„ PDAs  
PIN CONFIGURATION  
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
PIN DESCRIPTION  
Pin No.  
MSOP  
SYMBOL  
DESCRIPTION  
DFN  
SHUTDOWN  
BYPASS  
NC  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Shutdown the device.(when low level is active the pin)  
Bypass pin  
No Internal connection  
Negative input  
Positive BTL output  
Power supply  
-IN  
Vo1  
VDD  
GND  
Vo2  
Ground  
Negative BTL output  
ORDERING INFORMATION  
LY 8 006 VV  
V : Package Type  
UL : 8-Pin MSOP  
BL : 8-Pin DFN  
Product Name  
A : Product Line  
LY : Lyontek Product Number Prefix  
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
APPLICATION CIRCULT  
Figure 1. Application Schematic With Single-Ended Input Configuration  
Single-End Input With Pre-Amplifier Gain = (150 KΩ / 5 KΩ) * 2 = 60  
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
Figure 2. Application Schematic With Single-Ended Input Configuration  
Single-End Input With Pre-Amplifier Gain = [150 KΩ / ( 5 KΩ+ Ri )] * 2  
ABSOLUTE MAXIMUN RATINGS  
PARAMETER  
SYMBOL  
RATING  
UNIT  
V
Supply Voltage  
VDD  
6.0  
℃
Operating Temperature  
TA  
-40 to 85 ( I grade)  
Input Voltage  
VI  
TSTG  
PD  
-0.3V to VDD +0.3V  
-65 to 150  
Internally Limited  
2000  
V
℃
Storage Temperature  
Power Dissipation  
W
V
℃
℃
ESD Susceptibility  
VESD  
TJMAX  
TSOLDER  
Junction Temperature  
Soldering Temperature (under 10 sec)  
150  
260  
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
ELECTRICAL CHARACTERISTICS (TA = 25℃,Unless otherwise noted)  
SYMBOL  
TEST CONDITION  
VI = 0 V, Av = 2 V/V,  
VDD = 2.5 V to 5.5 V  
VDD = 5.5 V, VI = 5.8 V  
VDD = 5.5 V, VI = 0.3 V  
MIN.  
TYP.  
MAX. UNIT  
PARAMETER  
Output offset voltage  
(measured differentially)  
High-level input current  
Low-level input current  
Power supply rejection ratio  
-
-
25  
mV  
|VOS|  
|IIH|  
|IIL|  
-
-
-
-
100  
5
-55  
4.5  
-
uA  
uA  
dB  
PSRR VDD = 2.5 V to 5.5 V  
VDD = 5.5V, No Load  
IQ  
-75  
3.4  
2.8  
2.2  
-
-
-
Quiescent Current  
mA  
VDD = 3.6V, No Load  
VDD = 2.5V, No Load  
3.2  
≦
0.8V,  
DD = 2.5V to 5.5V  
VDD= 2.5V to 5.5V  
VSHUTDOW  
V
N
Shutdown Current  
Total Gain (*)  
ISD  
-
0.3  
2
A
µ
[300KΩ / (5KΩ+Ri)] x2  
V/V  
RL = 8Ω  
(TYP.)  
(*)The audio amplifier’s gain is determined by：  
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.  
OPERATING CHARACTERISTICS (TA = 25℃, Gain = 2V/V, RL = 8Ω, Unless otherwise noted)  
SYMBOL  
TEST CONDITION  
MIN.  
TYP.  
1.55  
0.79  
0.36  
1.2  
MAX. UNIT  
PARAMETER  
-
-
-
-
-
-
-
-
VDD=5.0V  
THD+N= 10%, f = 1 kHz,  
VDD=3.6V  
VDD=2.5V  
VDD=5.0V  
VDD=3.6V  
VDD=2.5V  
RL= 8Ω  
-
-
Out Power  
Po  
W
THD+N= 1%, f = 1 kHz,  
0.6  
0.3  
-
-
RL= 8Ω  
PO = 1 W, f = 1 kHz,  
RL = 8Ω  
PO = 0.5 W, f = 1 kHz,  
RL = 8Ω  
PO = 0.2 W, f = 1 kHz,  
RL = 8Ω  
-
-
-
0.2  
-
VDD=5V  
VDD=3.6V  
VDD=2.5V  
Total harmonic distortion + noise THD+N  
%
0.18  
0.15  
-
-
f = 217 Hz,  
V(RIPPLE) = 200mVpp,  
inputs ac-grounded  
with Ci = 2uF  
Supply ripple rejection ratio  
Signal-to-noise ratio  
KSVR  
-
-56  
-
dB  
dB  
VDD=3.6V  
VDD=5V  
SNR PO= 1 W, RL = 8Ω  
-
-
97  
48  
-
-
-
VDD = 3.6 V,  
f = 20 Hz to 20 kHz,  
Inputs ac-grounded with  
Ci = 2 μF  
No  
weighting  
Output voltage noise  
Vn  
uVRMS  
ms  
-
-
A
36  
weighting  
Start-up time from shutdown  
ZI  
VDD = 3.6 V  
110  
-
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
TYPICAL PERFORMANCE CHARACTERISTICS  
Figure 3  
Total Harmonic Distortion + Noise vs Output Power  
Figure 4  
Total Harmonic Distortion + Noise vs Frequency  
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
Figure 5  
Efficiency vs Output power ( RL=8Ω, 33μH)  
Figure 6  
Power dissipation vs Output power ( RL=8Ω, 33μH)  
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
Figure 7  
Supply Current vs Output Power ( RL=8Ω, 33μH)  
Figure 8  
Output Power vs Load Resistance (Po at 10 % THD with f = 1 kHz)  
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
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
Figure 9  
Output Power vs Load Resistance (Po at 1 % THD with f = 1 kHz)  
Figure 10  
THD+N & Output Power vs Temperature (VDD=3V, RL=8Ω)  
100  
10  
1
0.1  
25C  
80C  
85C  
-20C  
-40C  
0.01  
0.001  
0.01  
0.1  
1
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  
9
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
Figure 11  
THD+N & Output Power vs Temperature (VDD=4.5V, RL=8Ω)  
100  
10  
1
25C  
80C  
85C  
-20C  
-40C  
0.1  
0.01  
0.001  
0.01  
0.1  
1
10  
Po-Output Power (W)  
Figure 12  
THD+N & Output Power vs Temperature (VDD=5.0V, RL=8Ω)  
100  
10  
1
25C  
80C  
85C  
-20C  
-40C  
0.1  
0.01  
0.001  
0.01  
0.1  
1
10  
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  
10  
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
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 LY8006 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 LY8006 to operate at its best,  
For example  
Table 1. Typical Total Gain and AVD Values  
Rf (KΩ)  
Ri (KΩ)  
150  
300  
1
150  
150  
2
150  
100  
3
150  
75  
150  
50  
150  
37.5  
8
Pre AMP. Gain  
Total Gain  
AVD (db)  
4
6
2
4
6
8
12  
16  
6.02  
12.04  
15.56  
18.06  
21.58  
24.08  
Input Capacitors (Ci)  
The LY8006 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  
11  
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
For example  
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*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 )  
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  
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
Figure 7. Application Schematic With Two Single-Ended Inputs Configuration  
PCB Layout  
All the external components must place very close to the LY8006. The input resistors need to be very close to  
the LY8006 input pins so noise does not couple on the high impedance nodes between the input resistors and  
the input amplifier of the LY8006. Then place the decoupling capacitor Cs, close to the LY8006 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 LY8006 should be as wide as  
possible to minimize trace resistance. If these traces are too thin, the LY8006'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  
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
LY8006UL/LY8006BL Demo Board Artwork  
Top Silkscreen  
Top Layer  
Composite view  
Bottom Layer  
LY8006 V1.1 BOM List  
No.  
1
Description  
Resistor, 100KΩ  
Capacitor, 0.39uF  
Capacitor, 0.1uF  
Capacitor, 10.0uF  
Capacitor, 1.0uF  
1*2 Pin Header  
NC  
Reference  
R2,R3  
C2  
Note  
2
3
C3  
4
C4  
5
C5  
6
J1  
Close Æ Active  
7
R1,C1,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  
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
PACKAGE OUTLINE DIMENSION  
8 Pin MSOP 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  
15  
®
LY8006  
1.4 W Mono Filterless Class D Audio power Amplifier (MSOP / DFN)  
－
Compatible with LY8890/8891/8891B Single-Ended Input  
Rev. 1.7  
8 Pin DFN 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  
16  
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