SANYO LV4993TH

Ordering number : ENA1834D
Bi-CMOS IC
LV4993TH
For Portable Audio Equipment
Monaural BTL Power Amplifier
Overview
LV4993TH built-in the power amplifier circuit operable at low voltage (1.8V or more) and has additionally the standby
function to reduce the current drain. It is power amplifier IC optimal for speaker drive used in battery-driven portable
equipment and the low output power system equipment.
Application
IC recorder, Portable-TV, Radio, Portable-NAVI, LCD-monitor, Digital-photo-frame, and etc.
Function and Feature
• Monaural BTL power amplifier built-in
Standard output power 1 = 1.5W (VCC = 5V, RL = 8Ω, THD = 10%)
Standard output power 2 = 0.5W (VCC = 3V, RL = 8Ω, THD = 10%)
Output coupling capacitor not necessary because of differential output type
• Operation at low voltage possible (Operate with two dry battery cells)
VCC = 1.8V or more
• Standby function built-in
Standard current drain at standby = 0.02μA (VCC = 5V)
• Second amplifier stop control function built-in: For BTL/SE mode switching, and signal muting at BTL mode.
• Overheat protection circuit built-in
• Gain setting possible
BTL voltage gain = 0 to 26dB
• Output phase compensation capacitor not necessary
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.
31511 SY/33011 SY 20110323-S00001/N1710 SY/O2010 SY/O0610 SY No.A1834-1/13
LV4993TH
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Symbol
Conditions
Ratings
Unit
VCC max
Allowable power dissipation
Pd max
Maximum junction temperature
Tj max
PCB mounted*
6
V
0.85
W
150
°C
Operating temperature
Topr
-40 to +85
°C
Storage temperature
Tstg
-40 to +150
°C
* PCB mounted : with 40mm × 40mm × 1.6mm, double-sided glass epoxy circuit board
Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
Conditions
Ratings
Unit
VCC
Recommended load resistance
RL
5
V
4 to 32
Ω
Allowable operating supply voltage range1
VCC op1
RL=8 to 32Ω, Ta=-10 to 85°C
* 1.8 to 5.5
V
Allowable operating supply voltage range2
VCC op2
RL=8 to 32Ω, Ta=-40 to 85°C
2.0 to 5.5
V
Allowable operating supply voltage range3
VCC op3
RL=4 to 7Ω, Ta=-10 to 85°C
2.0 to 4.0
V
Allowable operating supply voltage range4
VCC op4
RL=4 to 7Ω, Ta=-40 to 85°C
2.2 to 4.0
V
* Determine the supply voltage to be used with due consideration of allowable power dissipation.
* It is assumed the operation guarantee from VCC=1.8V to 2.0V.
Electrical Characteristics Ta = 25°C, VCC = 5V, fin = 1kHz, RL = 8Ω, V3=1.6V
Ratings
Parameter
Symbol
Conditions
Unit
min
Quiescent current drain
Stand-by current drain
ICCOP
No signal, RL = ∞
ISTBY
No signal, RL = ∞, V3 = 0.3V
Maximum output power 1
POMX1
THD = 10%
Maximum output power 2
POMX2
THD = 10%, VCC = 3V
Voltage gain
VG
Voltage gain use range
VGR
Total harmonic distortion
THD
VIN = -10dBV
typ
1.0
4.4
max
3.6
6
mA
0.02
5
μA
1.5
W
0.5
W
5.9
7.4
dB
26
dB
0.3
1
%
0
VIN = -10dBV
μVrms
Output noise voltage
VNOUT
Rg = 620Ω, 20 to 20kHz
35
100
MUTE attenuation level 1
MUTE1
VIN = 0dBV, V3=0.3V(at standby)
-105
-90
dBV
MUTE attenuation level 2
MUTE2
VIN = 0dBV, V2=0.3V
(at Second power amplifier stop)
-105
-90
dBV
Ripple rejection ratio
SVRR
Rg = 620Ω, fr = 100Hz, Vr = -20dBV
Output offset voltage
VOS
30
mV
3
V
50
Rg = 620Ω
-30
1.6
Reference (pin 1) voltage
VREF
Pin 3 control HIGH voltage
VSTBH
Power amplifier operation mode
Pin 3 control LOW voltage
VSTBL
Power amplifier standby mode
Pin 2 control HIGH voltage
VCNTH
Second power amplifier operation mode
Pin 2 control LOW voltage
VCNTL
dB
0.5VCC
V
0
0.3
V
1.6
VCC
V
0
0.3
V
(BTL mode)
Second power amplifier standby mode
(SE mode)
No.A1834-2/13
LV4993TH
Package Dimensions
unit : mm (typ)
3339
Pd max - Ta
3.0
1.2
Specified circuit board : 40×40×1.6mm3
glass epoxy board
0.7
6
0.5
3.0
4.9
8
1 2
0.2
0.125
0.5
0.08
(0.85)
1.1MAX
(0.5)
Allowable power dissipation, Pd max - W
0.75
1.0
Specified PCB (Both sides)
0.85
0.8
0.6
0.44
0.4
Independent IC
0.20
0.2
0.10
0
—40
—20
0
20
40
60
Ambient temperature, Ta - C
80
100
PCA01713
SANYO : HMSOP8(150mil)
Evaluation board
Size : 40mm×40mm×1.6mm
Top Layer (Top view)
Bottom Layer (Top view)
No.A1834-3/13
LV4993TH
Block Diagram and Sample Application Circuit
INPUT
1
VREF
VCC
IN
AMP1
8
+
STBY
2
7
CONTROL
+
VCC
BIAS
3
4
5
OUT2
+
-
OUT1
AMP2
VCC
6
RADIATOR
FIN
from CPU
CNT
TSD
from CPU
GND
SPEAKER
Test Circuit
VIN
2 CNT
VCNT
VSTBH
3 STBY
VSTBL
IN 8
LV4993TH
1 VREF
VCC 7
+
VCC
OUT1 6
4 OUT2
RADIATOR
FIN
5 GND
No.A1834-4/13
LV4993TH
Pin Description
Pin voltage
Pin No.
1
Symbol
VREF
Description
VCC = 5V
2.5
Equivalent circuit
Standard voltage pin
VCC
VCC
VREF
1
GND
2
CNT
1.4
Second amplifier stop control pin
•When OPEN : BTL mode
VCC
VCC
•When external is impressed
BTL mode at 1.6V to VCC
SE mode at 0 to o.3V
CNT
2
GND
3
STBY
External
impression
Standby control pin
VCC
•Standby mode at 0 to 0.3V
VCC
•Operation mode at 1.6 to 3V
BIAS
3
GND
4
OUT2
2.5
Second output pin
VCC
VCC
VREF
+
-
4
GND
5
GND
0
6
OUT1
2.5
Ground pin
-
First output pin
VCC
VCC
VREF
+
-
6
GND
7
VCC
External
Power pin
-
impression
8
IN
2.5
Input pin
VCC
8
VCC
VREF
GND
No.A1834-5/13
LV4993TH
Cautions for use
1. Input coupling capacitor (C3)
C3 is an input coupling capacitor, and it has aimed at the DC cutting. However, please set it in consideration of the
cutoff frequency when you decide the capacitance value so that the high-pass filter may be composed by this capacitor
(C3) and input resistance (R1), and the bass frequency signal may attenuate.
The cutoff frequency is shown by the next formula.
1
fc = 2π*C3*R1
Moreover, this capacitor influences a pop noise at start-up. Please note it enough so that the charging time to the
capacitor may become long when the value is enlarged, and the pop noise level may grow.
2. BTL voltage gain
The voltage gain of the first amplifier is decided depending on the ratio of resistance R1 and R2.
Vg=20 * log(R2/R1) (dB)
Therefore, the BTL voltage gain:
VgBTL=6+20 * log(R1/R2) (dB)
It is shown by the above-mentioned calculating formula. Please set the BTL voltage gain within the range from 0 to
26dB.
3. Pin 1 capacitor (C4)
C4 is a capacitor for the ripple filter. It is a purpose to compose the low-pass filter of internal resistance
(100kΩ+450kΩ) and C4, to reduce the power supply ripple element, and to improve the ripple elimination factor.
Please operate the automatic pop noise reduction circuit by using the standing up transition response characteristic of
one pin voltage (standard voltage), and design in IC in consideration of a pop noise at the time of start-up growing
when the C3 capacity value is reduced to hasten the start-up speed.
4. Capacitor for power supply line (C1, C2)
Bypass capacitor (C2) has aimed at the high frequency aphaeresis that cannot be removed with the power supply
capacitor (C1: Chemical capacitor). This capacity must arrange as much as possible near IC, and use the ceramic
capacitor with good high-frequency property.
It is also possible to bring it together in the ceramic capacitor of one 2.2μF when a steady power supply is used. Please
enlarge the capacity value of power supply capacitor (C1) when the power supply line is comparatively unstable.
5. Standby pin (pin 3)
By controlling the standby pin, the mode changeover can be made between standby and operation modes. The series
resistance (R3:1kΩ or more) is recommended to be inserted might receive the influence of a digital noise from CPU
though it is possible to control with the output port of CPU directly.
Standby mode ⇒ V2 = 0 to 0.3V
Operation mode ⇒ V2 = 1.6 to 3V
Please suppress the impressed voltage to become a static test mode (heat protection circuit operation check mode)
when 3V or more is impressed to 3rd pin within 3V. Moreover, it is also possible to synchronize with the power supply
and to use the pin as shown in Figure 1 when the standby function is not used. Please set the value of series resistance
(R3) so that 3rd pin voltage may become 3V or less.
Current (I3) that flows in 3rd pin can be calculated by the next formula.
7*10-6+(VCC−0.7)
I3 =
R3+30000
VCC
VCC
R3
STBY
7
3
Fig. 1
No.A1834-6/13
LV4993TH
6. Pin 2 control (second amplifier stop control function)
Pin 2 are pin that control ON/OFF as for the movement of the second amplifier of the BTL amplifier. The switch of the
speaker drive (BTL output method) and the earphone drive (shingle end output method) can operate by using this
function. Moreover, it is possible to use it as a voice mute function in the BTL output method.
Second amplifier ON ⇒ V2 = 1.6 to VCC or OPEN
Second amplifier OFF ⇒ V2 = 0 to 0.3V
Make it to the opening when this function is not used.
7. Load capacitance
The phase margin degree of the power amplifier might decrease by the influence of this capacitor when the capacitor is
connected by the purpose of the anti-electric wave radiation measures etc. between output pins GND and the
oscillation be caused. Note the capacity value when you add this capacitor.
Recommended capacity value: 100pF or less or 1000pF to 1μF
8. Thermal protector circuit
The thermal protector circuit is built into in IC, and when heat is abnormally generated because of some causes, the risk
of destruction/deterioration can be reduced. The protection circuit operates when junction temperature (Tj) of the chip
in IC rises to about 165℃, the current supply source to the power amplifier is intercepted, and the signal is not output.
It returns automatically if the temperature of the chip decreases (about 140℃). This circuit must note handling enough
because it is able surely not to prevent destruction/deterioration. Turn off power promptly when you abnormally
generate heat, and pinpoint the cause.
9. Short-circuit between pins
When power is applied with pins left short-circuited, deterioration or damage may result.
Therefore, check before power application if pins are short-circuited with solder, etc. during mounting of IC to the
substrate.
10. Short-circuit of load
If the load is left short-circuited for a long period of time, deterioration or damage may occur.
Never allow the load to short-circuit.
11. Maximum rating
When IC is used near the maximum rating, there is a possibility that the maximum rating may be exceeded even under
the smallest change of conditions, resulting in failure. Take the sufficient margin for variation of supply voltage and
use IC within a range where the maximum rating will never be exceeded.
No.A1834-7/13
100
7
5
3
2
THD -- PO
VCC = 5V
fin =1kHz
VG = 6dB
Total harmonic distortion, THD -- %
Total harmonic distortion, THD -- %
LV4993TH
10
7
5
3
2
1
7
5
3
2
0.1
0.01
2
3
5
7 0.1
2
3
5
7
2
1
3
5
Output power, PO -- W
7 10
Total harmonic distortion, THD -- %
2
1
7
19.1dB
12.5dB
5
3
6dB
2
2 3
5 7 0.1
2 3
5 7 1
2 3
5 7 10
2 3
2
1
7
5
3
2
Frequency, f -- kHz
5
PO max -- VCC
1.25
1
0.75
0.5
0.25
2
0.1
3
5
7
1
THD -- f
1
7
5
3
2
2 3
5 7 0.1
2 3
5 7 1
2 3
5 7 10
2 3
5 7 100
4.5
5
5.5
Frequency, f -- kHz
PO -- VCC
THD = 1%
fin = 1kHz
1.5
1.25
1
0.75
0.5
2
2.5
3
3.5
4
4.5
5
0
1.5
5.5
2
2.5
Supply voltage, VCC -- V
3
3.5
4
Supply voltage, VCC -- V
Pd -- PO
0.7
Pd -- PO
0.7
0.4
V
4.2
V
3.6
0.3
3.0V
0.2
0.1
=3
0.5
V
CC
Power dissipation, Pd -- W
5.0
V
CC
=
0.5
.6V
0.6
V
0.6
Power dissipation, Pd -- W
7
0.25
0
1.5
0
0.01
5
Output power, PO -- W
2
1.75
1.5
3
3
2
THD = 10%
fin = 1kHz
2
VCC = 5V
PO = 200mW
VG = 6dB
0.1
0.01
5 7 100
Output power, PO -- W
Total harmonic distortion, THD -- %
3
0.1
0.01
Max. output power, PO max -- W
3
7
5
1.75
2
10
7
5
10
7
2
3
THD -- PO
VCC = 3V
fin =1kHz
VG = 6dB
0.1
0.01
THD -- f
10
100
7
5
0.4
0V
3.
0.3
0.2
0.1
2
3
5 7 0.1
2
3
5 7 1
Output power, PO -- W
2
3
5 7 10
0
0.01
2
3
5 7 0.1
2
3
5 7 1
Output power, PO -- W
2
3
5 7 10
No.A1834-8/13
LV4993TH
Pd -- PO
0.7
7
0.6
5
Supply current, ICCO -- mA
Power dissipation, Pd -- W
ICCO -- PO
1000
VCC = 5V
0.5
0.4
0.3
0.2
3
2
100
7
5
3
2
0.1
0
0.01
2
3
5 7 0.1
2
3
5 7
2
1
3
10
0.01
5 7 10
Output power, PO -- W
VNO -- VCC
34
1000
7
2
3
5 7 0.1
2
3
5 7
2
1
3
5 7 10
Output power, PO -- W
tr -- Cref
VCC = 5V
Rise time, tr -- msec
5
33
32
3
2
100
7
5
3
2
31
2
2.5
3
3.5
4
4.5
5
10
0.1
5.5
Supply voltage, VCC -- V
Vmt -- Vin
--110
standby (V3 =0.3V)
V2 =0.3V
--120
--125
--40
--35
--30
--25
--20
--15
--10
--5
2
1
3
5
7
10
Vmt -- f
--90
--100
standby (V3 =0.3V)
--110
V2 =0.3V
--130
0.01
0
SVRR -- f
60
55
50
45
40
35
2 3
5 7 0.1
2 3
5 7 1
2 3
2 3
5 7 0.1
5 7 10
Frequency, f -- Hz
2 3
5 7100
2 3
5 7 1
2 3
5 7 10
2 3
Frequency, f -- Hz
5 7 100
SVRR -- Cref
65
Ripple rejection ratio, SVRR -- dB
65
Ripple rejection ratio, SVRR -- dB
7
--120
Input voltage, Vin -- dBV
30
0.01
5
--80
--105
--115
3
--70
Mutting level, Vmt -- dBV
Mutting level, Vmt -- dBV
--100
2
60
55
50
45
40
35
30
0.1
2
3
5
7
1
2
3
5
7
10
No.A1834-9/13
LV4993TH
ICCop -- VSTBY
ICCop -- V2CNT
4
VCC = 5V
no load
no signal
Supply current, ICCop -- mA
Supply current, ICCop -- mA
5
4
3
2
1
0
VCC = 5V
no load
no signal
3.5
3
2.5
2
0
0.5
1
1.5
2
3
2.5
0
0.5
1
Standby control voltage, VSTBY -- V
ICCop -- VCC
no signal
no load
V3 = 1.6V
Supply current, ICCop -- mA
3.5
BTL
3
2.5
3V)
2 =0.
SE (V
2
2
2.5
3
3.5
4
4.5
5
Istby -- VCC
100
Standby current, Istby -- nA
4
1.5
2pin control voltage, V2CNT -- V
1.5
1
no signal
no load
V3 = 0.3V
80
60
40
20
0.5
0
0
0
1
2
3
4
0
6
5
1
Supply voltage, VCC -- V
ICCop -- VCC
4
Supply current, ICCop -- mA
4.5
no signal
no load
V3 = 1.6V
4
5°C
8
Ta =
3.5
3
Supply current, ICCop -- mA
4.5
25°C
C
-40°
2.5
2
1.5
1
0
3.5
5
6
BTL
3
SE (V2 =0.3V)
2.5
2
1.5
1
1
2
3
4
5
6
--20
Istby -- Ta
40
Output noise voltage, VNO -- μVrms
no signal
no load
V3 = 0.3V
1000
7
5
3
2
100
7
5
3
2
10
--40
--20
0
20
40
60
Ambient temperature, Ta -- °C
0
20
40
60
80
100
80
100
Ambient temperature, Ta -- °C
Supply voltage, VCC -- V
Standby current, Istby -- nA
4
ICCop -- Ta
VCC = 5V
V3 = 1.6V
no signal
no load
0
--40
0
3
2
3
0.5
0.5
10000
7
5
2
Supply voltage, VCC -- V
80
100
VNO -- Ta
VCC = 5V
RL = 8Ω
Rg = 620Ω
Din Audio Filter
35
30
25
20
--40
--20
0
20
40
60
Ambient temperature, Ta -- °C
No.A1834-10/13
10
7
5
3
2
1
7
5
3
2
0.1
0.01
2
3
5 7 0.1
2
3
5 7 1
2
3
Output power, PO -- W
PO -- Ta
2
3
2
1
7
5
3
2
2
1.6
THD =
10%
1.4
1.2
THD = 1%
7
2
0.1
3
5
7
1
PO -- Ta
0.16
THD
= 10%
0.14
THD =
0.12
--20
0
20
40
60
80
0.08
--40
100
--20
Ambient temperature, Ta -- °C
1%
Mutting level, Vmt -- dBV
6
5.5
0
20
40
60
Ambient temperature, Ta -- °C
20
40
60
80
100
80
100
Vmt -- Ta
--90
6.5
--20
0
Ambient temperature, Ta -- °C
VG -- Ta
7
Voltage gain, VG -- dB
5
Output power, PO -- W
0.1
1
5
--40
3
0.18
Output power, PO -- W
Output power, PO -- W
10
7
5
0.2
1.8
0.8
--40
3
2
0.1
0.01
5 7 10
5°C
-10
25°C
°C
3
2
THD -- PO
100
7
5
Ta =
8
25°C
Total harmonic distortion, THD -- %
THD -- PO
100
7
5
Ta = 8
5°C
-40°C
Total harmonic distortion, THD -- %
LV4993TH
80
100
--100
V2 = 0.3V
V3 = 0.3V
--110
--120
--40
--20
0
20
40
60
Ambient temperature, Ta -- °C
No.A1834-11/13
LV4993TH
Transient response characteristics
VCC = 5V, RL = 8Ω, VG = 6dB, Cref = 1μF, Cin = 0.33μF
Rising Transient response characteristics
CH1:Load end [100mV/div]
CH2:6pin (OUT1) [1V/div]
CH3:3pin (STBY) [2V/div]
Time axis:50msec/div
Falling Transient response characteristics
CH1:Load end [100mV/div]
CH2:6pin (OUT1) [1V/div]
CH3:3pin (STBY) [2V/div]
Time axis:50msec/div
Mute release Transient response characteristics (ON→OFF)
CH1:Load end [100mV/div]
CH2:6pin (OUT1) [1V/div]
CH3:2pin (CNT) [2V/div]
Time axis:2msec/div
Mute Transient response characteristics (OFF→ON)
CH1:Load end [100mV/div]
CH2:6pin (OUT1) [1V/div]
CH3:2pin (CNT) [2V/div]
Time axis:2msec/div
No.A1834-12/13
LV4993TH
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require the
export license from the authorities concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
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Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
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Upon using the technical information or products described herein, neither warranty nor license shall be granted
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above.
This catalog provides information as of June, 2011. Specifications and information herein are subject
to change without notice.
PS No.A1834-13/13