Ordering number : ENA1049
Monolithic Linear IC
LA49101H
Overview
Audio Output for TV Application
10W×1ch High-Effciency Power Amplifier IC
The LA49101H is a high-effciency 1-channel 10W BTL monaural power amplifier IC.
Increases in the number of external components are held to a minimum by adopting both a signal-following type
switching scheme in the amplifier’s output stage power supply, and a nonlinear amplifier that has nonlinear
characteristics in the signal system. The power dissipation (thermal loss) in the actual operating range has been reduced
to about 1/2 that of earlier class B amplifier ICs.
When used with the HSOP28H package, the IC dispenses with the heat sink and significantly contributes to space saving
in the end product case.
Functions
•
High-efficiency 10W×1ch (VCC=14V, RL=8Ω)
•
Encapsulated in a HSOP28H package (heat sink free)
•
Requires only one signal-following type switching circuit, contributing to a reduction in the number of external
components
•
Provides analog outputs that generate no switching noise on the output lines
•
Built-in standby switches (amplifier and headphone amplifier blocks)
•
Built-in headphone amplifier (with 1 input and 1 output)
•
Built-in protection circuits (shorting to the power supply, shorting to ground, and thermal protection)
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Maximum junction temperature
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Tj max
Topr
Tstg
At no signal
As mounted on our recommended substrate
Conditions
Ratings
24
6.2
150
-25 to +75
-40 to +150
Unit
V
W
°C
°C
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
'
s products or
equipment.
31908 TI IM B8-9084 No. A1049-1/11
LA49101H
Operating Conditions
at Ta = 25°C
Parameter
Recommended supply voltage
Recommended load resistance
Symbol
VCC
RL
VCC op
Amplifier block
Headphone block
Allowable operating supply voltage range
Conditions
Ratings
14
8
32
8 to 18
Unit
V
Ω
Ω
V
Operating Characteristics
Amplifier Block
at Ta = 25°C, VCC (20Pin), Pre VCC (21Pin)=14V, RL=8Ω, f=1kHz, Rg=600Ω,
See the specified board and circuit.
Parameter
Quiescent current
Standby current
Voltage gain
Output power
Total harmonic distortion
Output noise voltage
Ripple rejection ratio
Input resistance
Output offset voltage
Standby control voltage
Symbol
ICCO
Ist
VG
PO
THD
VNO
SVRR
Ri
Voffset
Vst
Rg = 0Ω
Amplifier: ON
Amplifier: OFF
Conditions
Rg = 0Ω, RL = Open
Amplifier, headphone: OFF
VO = 0dBm
THD = 10%
PO = 1W, LPF = 30kHz
Rg = 0Ω, DIN AUDIO
Rg = 0Ω, fR = 100Hz, VR = 0dBm,
DIN AUDIO
*1
21
-120
2.5
0
30
39
+120
18
1.0
kΩ
mV
V
V
*1
55
27.2
8
Ratings
min
25
typ
40
0
29.2
10
0.07
0.05
70
0.4
0.3
max
100
10
31.2
Unit
mA
μA
dB
W
%
mVrms
dB
Headphone Block
at Ta = 25°C, VCC (20Pin), Pre VCC (21Pin)=14V, RL=32Ω, f=1kHz, Rg=600Ω,
See the specified board and circuit.
Parameter
Voltage gain
Output power
Total harmonic distortion
Ripple rejection ratio
Input resistance
Output noise voltage
Standby control voltage
Symbol
VG
PO
THD
SVRR
Ri
VNO
Vst
Rg = 0Ω, DIN AUDIO
Headphone amplifier: ON
Headphone amplifier: OFF
*1
2.5
0
VO = 0dBm
THD = 10%
VO = 0dBm, LPF = 30kHz
Rg = 0Ω, fR = 100Hz, VR = 0dBm,
DIN AUDIO
*1
21
30
0.01
39
0.04
18
1.0
kΩ
mVrms
V
V
70
Conditions
Ratings
min
4.4
30
typ
5.4
60
0.2
80
0.5
max
6.4
Unit
dB
mW
%
dB
*1: Use the DIN AUDIO (20Hz to 20kHz) filter for measurement.
No. A1049-2/11
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