LY8005.pdf 데이터시트 (총 22 페이지) - 파일 다운로드 LY8005 데이타시트 다운로드

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®
Rev. 1.6
LY8005
2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)
FEATURES
„ 2.3 W Into 4from 5.0V power supply at
THD = 10% (Typ.).
„ 1.4 W Into 8from 5.0V power supply at
THD = 10% (Typ.).
„ 2.5V~5.5V Power supply.
„ Low shutdown current.
„ Low quiescent current.
„ Minimum external components.
„ No output filter required for inductive loads.
„ Output Pin Short-Circuit Protection (Short to
Output Pin, Short to GND, Short to VDD).
„ Low noise during turn-on and turn-off transitions.
„ Lead free and green package available.
(RoHS Compliant)
„ 8-pin MSOP package.
APPLICATION
„ Portable electronic devices
„ Mobile Phones
„ PDAs
PIN CONFIGURATION
GENERAL DESCRIPTION
The LY8005 is a high efficiency, 2.3 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.
The LY8005 is designed to meet of mobile phones
and other portable electronic devices. The LY8005
is a single 5V supply, it is capable of driving 4
speaker load at a continuous average output of 2.3
W with 10% THD+N. The LY8005 has high
efficiency with speaker loads compared to a typical
Class AB amplifier.
In cellular handsets, the earpiece, speaker phone,
and melody ringer can each be driven by the
LY8005.The gain of the LY8005 is externally
configurable which allows independent gain control
from multiple sources by summing the signals.
Output short circuit and thermal overload protection
prevent the device from damage during fault
conditions.
www.DataSheet4U.com
8 Pin MSOP Package (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

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®
Rev. 1.6
LY8005
2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)
PIN DESCRIPTION
SYMBOL Pin No.
SHUTDOWN
1
NC 2
+IN 3
-IN 4
Vo+ 5
VDD
6
GND
7
Vo2 8
DESCRIPTION
Shutdown the device.(when low level is active the pin)
No internal connection
Positive input
Negative input
Positive BTL output
Power supply
Ground
Negative BTL output
ORDERING INFORMATION
LY 8 005 VV
V : Package Type
UL : 8-Pin MSOP
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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

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®
Rev. 1.6
LY8005
2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)
APPLICATION CIRCUIT
Figure 1. Application Schematic With Differential Input Configuration
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Figure 2. Application Schematic With Differential and Capacitors Input 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
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®
Rev. 1.6
LY8005
2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)
Figure 3. Application Schematic With Single-Ended Input
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ABSOLUTE MAXIMUN RATINGS*
PARAMETER
Supply Voltage
Operating Temperature
Input Voltage
Storage Temperature
Power Dissipation
ESD Susceptibility
Junction Temperature
Soldering Temperature (under 10 sec)
SYMBOL
VDD
TA
VI
TSTG
PD
VESD
TJMAX
TSOLDER
RATING
6.0
-40 to 85 (I grade)
-0.3V to VDD +0.3V
-65 to 150
Internally Limited
2000
150
260
UNIT
V
V
W
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
4

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®
Rev. 1.6
LY8005
2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)
ELECTRICAL CHARACTERISTICS (TA = 25,Unless otherwise noted)
PARAMETER
Output offset voltage
(measured differentially)
High-level input current
Low-level input current
Power supply rejection ratio
Common mode rejection ratio
Quiescent Current
Shutdown Current
SYMBOL TEST CONDITION
|VOS|
VI = 0 V, Av = 2 V/V,
VDD = 2.5 V to 5.5 V
|IIH| VDD = 5.5 V, VI = 5.8 V
|IIL| VDD = 5.5 V, VI = 0.3 V
PSRR VDD = 2.5 V to 5.5 V
VDD=2.5V to 5.5V,
CMRR VIC= VDD/2 to 0.5 V,
VIC= VDD/2 to VDD-0.8 V,
VDD = 5.5V, No Load
IQ VDD = 3.6V, No Load
VDD = 2.5V, No Load
ISD
VSHUTDOWN = 0.8V,
VDD = 2.5V to 5.5V
MIN.
-
-
-
-
-
-
-
TYP.
-
-
-
-75
-60
3.4
2.8
2.2
0.3
MAX.
25
100
5
-55
UNIT
mV
uA
uA
dB
-48 dB
4.5
- mA
3.2
2 µA
OPERATING CHARACTERISTICS (TA = 25, Gain = 2V/V, RL = 8, Unless otherwise noted)
PARAMETER
SYMBOL
TEST CONDITION
THD+N= 1%, f = 1 kHz,
RL= 8
VDD=5V
VDD=3.6V
VDD=2.5V
Out Power
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Total harmonic distortion + noise
Supply ripple rejection ratio
Signal-to-noise ratio
Output voltage noise
Common mode rejection ratio
Start-up time from shutdown
PO
THD+N
KSVR
SNR
Vn
CMRR
ZI
THD+N= 10%, f = 1 kHz, VDD=5V
RL= 8
VDD=3.6V
VDD=2.5V
THD+N= 1%, f = 1 kHz,
RL= 4
VDD=5V
VDD=3.6V
VDD=2.5V
THD+N= 10%, f = 1 kHz, VDD=5V
RL= 4
VDD=3.6V
VDD=2.5V
PO = 1.0 W, f = 1 kHz,
RL = 8
VDD=5V
PO = 0.5 W, f = 1 kHz,
RL = 8
VDD=3.6V
PO = 0.2 W,f = 1 kHz,
RL = 8
VDD=2.5V
f = 217 Hz,
V(RIPPLE) = 200mVpp,
inputs ac-grounded
VDD=3.6V
with Ci = 2uF
PO= 1 W, RL = 8
VDD=5V
VDD = 3.6 V,
f = 20 Hz to 20 kHz,
No
weighting
Inputs ac-grounded with A
Ci = 2 μF
weighting
VIC = 1 Vpp , f = 217 Hz VDD=3.6V
VDD = 3.6 V
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP.
1.1
0.64
0.3
1.5
0.79
0.37
1.57
0.77
0.4
2.3
1.16
0.53
0.07
MAX.
-
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
W
W
W
W
0.075
-
%
0.05 -
-71 - dB
97 - dB
48 -
36 - uVRMS
-63 - dB
1 - ms
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