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PDF LY8005 Data sheet ( Hoja de datos )
| Número de pieza | LY8005 | |
| Descripción | 2.3 W Mono Filterless Class D Audio power Amplifier | |
| Fabricantes | Lyontek | |
| Logotipo |  |
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®
Rev. 1.6
LY8005
2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)
FEATURES
2.3 W Into 4Ω from 5.0V power supply at
THD = 10% (Typ.).
1.4 W Into 8Ω from 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 4Ω
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
1 page  
®
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 = 8Ω, Unless otherwise noted)
PARAMETER
SYMBOL
TEST CONDITION
THD+N= 1%, f = 1 kHz,
RL= 8Ω
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= 8Ω
VDD=3.6V
VDD=2.5V
THD+N= 1%, f = 1 kHz,
RL= 4Ω
VDD=5V
VDD=3.6V
VDD=2.5V
THD+N= 10%, f = 1 kHz, VDD=5V
RL= 4Ω
VDD=3.6V
VDD=2.5V
PO = 1.0 W, f = 1 kHz,
RL = 8Ω
VDD=5V
PO = 0.5 W, f = 1 kHz,
RL = 8Ω
VDD=3.6V
PO = 0.2 W,f = 1 kHz,
RL = 8Ω
VDD=2.5V
f = 217 Hz,
V(RIPPLE) = 200mVpp,
inputs ac-grounded
VDD=3.6V
with Ci = 2uF
PO= 1 W, RL = 8Ω
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
5 Page 
®
Rev. 1.6
100
LY8005
2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)
Figure 13
THD+N & Output Power vs Temperature (VDD=5.0V, RL=8Ω)
10
1
0
0
0.0001
www.DataSheet4U.com
0.001
0.01
0.1
Po - Output Power (W)
Figure 14
FCC Class-B (Vertical)
25C
80C
85C
-20C
-40C
1 10
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
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LY8005.PDF ] | |
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