SANYO LA4809M

Ordering number : ENA1569A
LA4809M
Monolithic Linear IC
Stereo Headphone Amplifier
Overview
LA4809M is a 2-channels power amplifier to drive the headphone with wide supply voltage range.
To minimize the effects of power supply, the regulator circuit for control of the output power is built-in to enable setting of
the output power value adequate for the headphone amplifier (2 types of set value available). This product also has the
standby function, and is suitable as a driver for wide-ranging headphone.
Applications
Headphone driver for TV and audio equipment
Features
• 2-channels power amplifier built-in (maximum output power value changeable according to the setting)
Maximum output power A = 55mW Standard (Pin 10 : Open)
Maximum output power B = 160mW Standard (Pin 10 : GND)
*VCC = 12V, RL = 16Ω, THD = 10%
*Change to another power value possible by adding the external parts
• Regulator built-in : Limited change of the output power value due to fluctuation of supply voltage
High-Ripple rejection ratio
• Standby function (also used for voice muting) : Current drain at standby = 0.01μA Standard (VCC = 12V)
• Overheat protection circuit built-in
• Wide supply voltage range (differing according to the set value of maximum output power) : VCC = 3.6V to 17V
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.
O2809 SY 20091023-S00004 / O2109 SY PC No.A1569-1/15
LA4809M
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Maximum supply voltage
VCC max
Without signal
Allowable power dissipation
Pd max
* Mounted on a printed circuit board.
Ratings
Unit
18
V
1.75
W
Maximum junction temperature
Tj max
150
°C
Operating temperature
Topr
-30 to +75
°C
Storage temperature
Tstg
-40 to +150
°C
* Evaluation board of SANYO Semiconductor : 50mm × 50mm × 0.8mm (Glass epoxy double-side PCB)
Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
VCC
Recommended load resistance
RL
Operating supply voltage range
VCC op-1
VCC op-2
VCC op-3
Conditions
Ratings
Unit
12
V
16 to 32
Ω
mode-B (for PO max = 160mW)
6.2 to 17
V
mode-A (for PO max = 55mW)
4.2 to 17
V
* Depending on the output power value when the
external part is added
3.6 to 17
V
* Determine the supply voltage with due consideration of the allowable power dissipation.
* Note that the supply voltage range is limited depending on the setting of the maximum output power value.
Electrical Characteristics at Ta = 25°C, VCC = 12V, RL = 16Ω, fin = 1kHz, V3 = 2V, Pin 10 : open
Parameter
Symbol
Ratings
Conditions
min
Quiescent current drain
typ
Unit
max
ICCOP
No signal
Standby current drain
ISTBY
No signal, Standby mode (V3 = 0.3V)
Maximum output power-A
POMAXA
THD = 10%, mode-A
Maximum output power-B
POMAXB
THD = 10%, mode-B (Pin 10 : gnd)
87
160
Voltage gain
VG
Vin = -20dBV
10.2
11.7
13.2
dB
-1.5
dB
30
3.8
6.5
0.01
5
55
mA
μA
mW
mW
Channel balance
CHB
Vin = -20dBV
Total harmonic distortion
THD
Vin = -20dBV
0
+1.5
0.15
0.7
Output noise voltage
VNOUT
Rg = 620Ω, 20 to 20kHz
%
18
50
μVrms
Channel separation
CHsep
Vin = -15dBV
Mute attenuation level
VMT
Vin = -10dBV, Standby mode (V3 = 0.3V)
Ripple rejection ratio
SVRR
Rg = 620Ω, fr = 100Hz, Vr = -10dBV
Pin 2 voltage-A
V2A
Pin 2 voltage-B
V2B
STBY control HIGH voltage
VSBH
(Circuit power mode)
2
9
V
STBY control LOW voltage
VSBL
(Circuit standby mode)
0
0.6
V
60
72
dB
-80
-88
dBV
70
81
dB
mode-A
2.1
V
mode-B (Pin 10 : gnd)
3.1
V
* mode-A (Pin 10 = open) : PO max = 55mW
Pin 2 voltage : V2 = 2.1V, Internal regulator voltage : Vreg = 2 × V2 = 4.2V, Amp operating reference voltage : Vref = 1 × V2 = 2.1V
mode-B (Pin 10 = gnd) : PO max = 160mW
Pin 2 voltage : V2 = 3.1V, Internal regulator voltage : Vreg = 2 × V2 = 6.2V, Amp operating reference voltage : Vref = 1 × V2 = 3.1V
No.A1569-2/15
LA4809M
Package Dimensions
unit : mm (typ)
3384
Pd max -- Ta
TOP VIEW
SIDE VIEW
BOTTOM VIEW
5.0
(3.4)
(2.6)
0.63
6.4
4.4
12
1
2
0.15
0.3
0.8
(0.5)
1.75
1.5
1.05
1.0
0.5
0.3
Independent IC
0.18
0
– 30 – 20
1.7 MAX
Mounted on a specified board
(evaluation board of
SANYO Semiconductor) :
50mm × 50mm × 0.8mm
(glass epoxy double-side PCB)
SANYO evaluation board
0
20
40
60
75 80
100
Ambient temperature, Ta -- °C
0.05
(1.5)
SIDE VIEW
Maximum power dissipation, Pd max -- W
2.0
SANYO : MFP12S(225mil)
Evaluation board
Copper foil pattern diagram
(Dimensions : 50mm × 50mm × 0.8mm)
Top Layer (Top view)
Bottom Layer (Top view)
No.A1569-3/15
LA4809M
Block Diagram and Sample Application Circuit
Vin2
*Output power limiter setting
Pin 10 open PO max = 55mW
Pin 10 gnd PO max = 160mW
+
12
IN2
11
NC
10
PLS
9
OUT2
8
NC
7
GND
+
GND
V
Vref = Vrf
REG
VCC
+
Vrf
IN1
BIAS
RF
1
STBY
2
3
OUT1
NC
4
VCC
5
6
+
Vin1
from CPU
Test Circuit Diagram
620Ω
S12
Load resistance
16Ω
VOUT2
S1
0.1μF
+
100μF
12
11
10
9
8
7
IN2
NC
PLS
OUT2
NC
GND
1μF
S11
IN1
RF
STBY
OUT1
NC
VCC
1
2
3
4
5
6
0.1μF
+
2.2μF
SG
620Ω
Vstby
100μF
VOUT1
Load resistance
16Ω
VCC
No.A1569-4/15
LA4809M
Pin Functions
Pin No.
Pin Name
1
IN1
12
IN2
Pin Voltage (V)
mode-A
mode-B
2.1
3.1
Description
Equivalent Circuit
Amplifier input pin.
VCC
VCC
OUT
1
12
45kΩ
VREF
2
RF
2.1
3.1
Reference voltage pin.
VCC
39μA
VCC
54kΩ
2
×2
VREG
×1
VREF
26kΩ
77kΩ
PLS-cnt
3
STBY
Applied
Applied
Standby control pin.
STBY-cnt
VCC
(to which the external voltage is applied)
VCC
35kΩ
3
45kΩ
4
OUT1
9
OUT2
2.1
3.1
Amplifier output pin.
VCC
VREG
VCC
IN
+
4
-
9
10kΩ
VREF
5
NC
NC pin.
8
11
6
VCC
Applied
Applied
Power pin.
(to which the external voltage is applied)
7
GND
GND
GND
GND pin.
10
PLS
0.69
GND
Output power selection pin.
VCC
VCC 22μA
10
10kΩ
No.A1569-5/15
LA4809M
Cautions for use
1. Input coupling capacitors (Cin1, Cin2)
Cin1 (Cin2) is an input coupling capacitor, which is intended for DC cut. This capacitor forms a high pass filter
together with the internal resistance of 45kΩ attenuating the bass frequency signal. Set the capacitance value with due
consideration of the cut-off frequency.
Note that the cut-off frequency is expressed as follows :
1ch ⇒ fc1 = 1/ (2π × Cin1 × 45000)
2ch ⇒ fc2 = 1/ (2π × Cin2 × 45000)
This capacitor also affects the pop noise at a time of falling. Note that setting the higher capacitance value causes delay
of the capacitor discharge rate, causing louder pop noise.
2. Output coupling capacitors (Cout1, Cout2)
Cout1 (Cout2) is an output coupling capacitor, which is intended for DC cut. This capacitor forms a high pass filter
together with the load impedance of RL, attenuating the bass frequency signal. Set the capacitance value with due
consideration of the cut-off frequency. Normally, the chemical capacitor is used. When setting the capacitance value,
take into account the characteristics of the chemical capacitor, namely, the capacitance value of chemical capacitor
tends to decrease at low temperature.
Note that the cut-off frequency is expressed as follows :
1ch ⇒ fc3 = 1/ (2π × Cout1 × RL)
2ch ⇒ fc4 = 1/ (2π × Cout2 × RL)
This capacitor also affects the pop noise at a time of rising. Note that setting the higher capacitance value causes louder
pop noise.
3. Power supply line capacitor (CVCC)
CVCC is intended to stabilize the power supply line. Arrange this capacitor as near to IC as possible and always use the
ceramic capacitor with superior high frequency characteristics.
Increase the capacitance value when the power supply line is relatively unstable.
4. Pin 2 capacitor (Crf)
Crf is a capacitor to determine the transient response characteristics of the Pin 2 voltage (reference voltage) : Vrf. At a
time of rising, this is charged by the internal constant-current source (about 39μA). At a time of falling, this is
discharged by the internal resistance (about 157kΩ). Due attention must be paid because pop noise and the amplifier
rise / fall time change depending on the transient response characteristics of Pin 2 voltage. Decreasing the capacitance
value to shorten the response time, pop noise becomes louder. Therefore, the use of the value shown below as the
capacitance value is recommended. As this capacitor reduces the power supply ripple component, decrease in the
capacitance value results in lowering of the ripple removal ratio.
Crf recommended values : 1μF to 3.3μF
5. Voltage gain
The voltage gain of amplifier is determined by the internal resistance and is fixed at about 11.7dB. When the output
level is to be changed, attempt attenuation with the resistor in the forward stage of input as shown in Fig.1. To enhance
the degree of attenuation, use two resistors as shown in Fig.2 so as to reduce internal-resistor variation factors.
Though attenuation in the backward stage of output as shown in Fig.3 is possible, this may cause decrease in the
maximum output power.
OUT
other IC
IN
LA4809M
(Low attenuation degree)
Fig.1
OUT
other IC
IN
LA4809M
(High attenuation degree)
Fig.2
OUT
+
LA4809M
Fig.3
6. Load capacitance
When connecting a capacitor between the output pin and GND for an anti-electric wave radiation measure, this
capacitor may cause decrease in the phase margin of power amplifier, resulting in the oscillation phenomenon. When
connecting this capacitor, pay attention to its capacitance value.
Recommended capacitance value : 560pF or less, or 0.01μF to 0.1μF
No.A1569-6/15
LA4809M
7. Selection of the maximum output power value (handling of Pin 10)
This IC enables selection of two types of maximum output power value according to the handling method of Pin 10.
The regulator circuit for output power control is built in, in which, by changing the voltage of Pin 2, the regulator
voltage : Vreg is changed to enable selection of the maximum output power value.
Mode-A (PO max = 55mW) : Pin 10 set to the OPEN state
Pin 2 voltage : V2 = 2.1V,
Internal regulator voltage : Vreg = 4.2V,
Amplifier operating reference voltage : Vref = 2.1V
Mode-B (PO max = 160mW) : Pin 10 connected to the GND line
Pin 2 voltage : V2 = 3.1V,
Internal regulator voltage : Vreg = 6.2V,
Amplifier operation reference voltage : Vref = 3.1V
When the maximum output power value is to be changed under CPU
VCC
control, use the NPN transistor as shown in Fig.4, so that the Pin 10
22μA
PLS
voltage approaches the GND potential (0.1V or below) sufficiently.
10
10kΩ
from CPU
Fig.4
8. Change of the maximum output power value (by handling Pin 2)
Pin 2 voltage : V2 is determined from the constant-current source and internal resistance as shown in Fig.5.
Operating ⇒ Mode-A : 54kΩ used
Mode-B : 80kΩ (54kΩ + 26kΩ) used
Not operating (at a time of falling) ⇒ 157kΩ (54kΩ + 26kΩ + 77kΩ) used
The internal regulator voltage and amplifier operating reference voltage are generated from this Pin 2 voltage.
Regulator voltage : Vreg = V2 × 2
Amplifier operating reference voltage : Vref = V2 × 1
Accordingly, to change the maximum output power value, connect the resistance : Rrf between Pin 2 and GND as
shown in Fig.5. This will cause change in the Pin 2 voltage. Note that, in view of circuit operation, the Pin 2 voltage
must be set to 1.6V or above.
If the discharge constant is not to be changed, Use the NPN transistor to control the Rrf connection as shown in Fig.6.
VCC
Rrf
2 RF
39μA
RF
2
Rrf
Crf
54kΩ 26kΩ
Crf
77kΩ
PLS-cnt
STBY-cnt
3 STBY
from CPU
Fig.5
Fig.6
9. Standby pin (Pin 3)
By controlling the standby pin, the mode can be changed over between standby and operation. Though this control is
possible directly by the CPU output port, the control may be exposed to adverse affect of digital noise from CPU. It is
recommended therefore to insert series resistance (1kΩ or more).
Standby mode ⇒ V3 = 0V to 0.6V
Operation mode ⇒ V3 = 2V to 9V (for VCC = 9V or above), V3 = 2V to VCC (for VCC = less than 9V)
Continued on next page.
No.A1569-7/15
LA4809M
Continued from preceding page.
When the standby function is not to be used, Pin 3 may be interlocked with power supply as shown in Fig.7. However,
due care must be taken in this case because such interlock makes the effectiveness of the pop noise reduction circuit
null, resulting in extremely large pop noise at a time of rising and falling. There are also methods to reduce the pop
noise by using two capacitors as shown in Fig.8. If pop noise is to be suppressed sufficiently, CPU control of the
standby pin is recommended.
Note that the approximate inrush current; I3 into the standby pin is calculated as follows :
Pin 3 inrush current (unit : A) : I3 = (5 × VCC - 4) × 10-5 /Rst
6 VCC
Rst
6 VCC
+
Cst2
3 STBY
Rst
VCC
3 STBY
Fig.7
VCC
+
Cst1
Fig.8
10. Operating power supply voltage range
The applicable power supply voltage range varies depending on the setting conditions of the maximum output power
value. Use this range while taking into account the Pin 2 voltage. As a guideline, the supply voltage at the lowest point
to be used must be two times the Pin 2 voltage.
Note that the minimum operating supply voltage must be 3.6V.
mode-B ⇒ VCC op = 6.2V to 17V
mode-A ⇒ VCC op = 4.2V to 17V
At change of the output power value due to external resistance ⇒ VCC op = 2 × V2 to 17V (V2 ⇒ Pin 2
voltage)
11. Handling of NC pins (Pins 5, 8, and 11)
NC pins are not connected to anything internally and may be left in the OPEN state. To enhance the heat sink effect as
much as possible, connection of NC pins to the GND line is recommended.
In particular, Pin 5 should be connected to the GND line so as to protect Pin 4 (the first output).
If the pins 4 and 5 section and the pins 5 and 6 section are bridged with solder simultaneously, the output pin enters the
powering (short to power) state, allowing the large current to flow into the output pin, resulting in deterioration or
damage of internal elements. Risk of deterioration or damage may be reduced when Pin 5 is connected to GND. When
the output pin voltage is about 0.7V or less, drive and power stages of the power amplifier circuit used becomes
inoperable. In this context, the protection in case of ground fault is provided.
12. Heat protective circuit
The heat protective circuit is incorporated in IC and can reduce the risk of damage/deterioration in case of abnormal
heat generation due to certain reasons. This protective circuit is activated when the junction temperature : Ti of the chip
in IC increases to about 160°C, shutting OFF current supply to the power amplifier. The signal is not output anymore.
When the chip temperature lowers (to about 130°C), the circuit is automatically reset.
Note that this circuit is not always capable of preventing damage/deterioration and should be handled with utmost care.
In case of abnormal heating, turn OFF power supply immediately and identify the probable causes.
13. Short-circuit between pins
Power ON while leaving the pins in the short-circuit state may cause deterioration or damage. When installing IC to the
substrate, check if pins are short-circuited with solder before turning power supply ON.
14. Load short-circuit
Leaving the loads in the short-circuit state over a long period of time may cause deterioration or damage. Never
short-circuit loads.
15. Maximum rating
When the product is used near the maximum rating, even the smallest change in the conditions may cause exceeding of
the maximum rating, possibly leading to the fracture accident. Take the sufficient fluctuation margin for the supply
voltage and always use the product within a range never exceeding the maximum rating. The package used for this IC
has the low heat sink effect as a single unit. When the working supply voltage is high, solder the backside heat sink pad
to ensure sufficient heat sink performance with copper foil of printed circuit board.
No.A1569-8/15
16
Ω
10
7
5
3
2
1
7
5
3
2
0.1
THD -- PO
100
7
5
mode-B
VCC = 12V
fin = 1kHz
3
2
10
7
5
3
2
1
7
5
3
2
0.1
2
1
3
5
7
2
10
3
5
7
1
100
2
3
5
Output power, PO -- mW
60
2
3
5
7 100
2
3
5
7 1000
PO -- VCC
180
mode-B
RL = 16Ω
fin = 1kHz
V3 = 2V
160
THD = 10%
Output power, PO -- mW
Output power, PO -- mW
mode-A
RL = 16Ω
fin = 1kHz
V3 = 2V
7 10
Output power, PO -- mW
PO -- VCC
70
50
1%
40
30
THD =
10%
140
1%
120
100
80
20
4
6
8
10
12
14
16
60
4
18
6
8
Supply voltage, VCC -- V
12
14
16
18
16
18
PO -- VCC
110
mode-A
RL = 32Ω
fin = 1kHz
V3 = 2V
mode-B
RL = 32Ω
fin = 1kHz
V3 = 2V
100
Output power, PO -- mW
35
10
Supply voltage, VCC -- V
PO -- VCC
40
Output power, PO -- mW
16Ω
3
2
Total harmonic distortion, THD -- %
mode-A
VCC = 12V
fin = 1kHz
RL =
32Ω
THD -- PO
100
7
5
RL
=3
2Ω
Total harmonic distortion, THD -- %
LA4809M
THD = 10%
30
1%
25
THD = 10%
90
80
1%
70
60
50
20
40
15
30
4
6
8
10
12
14
16
18
4
6
8
Supply voltage, VCC -- V
THD -- VCC
0.3
0.2
mode-A
mode-B
0.1
12
14
THD -- VCC
0.5
PO = 10mW
fin = 1kHz
RL = 16Ω
Total harmonic distortion, THD -- %
Total harmonic distortion, THD -- %
0.4
10
Supply voltage, VCC -- V
PO = 1mW
fin = 1kHz
RL = 16Ω
0.4
0.3
0.2
mode-B
mode-A
0.1
0
0
2
4
6
8
10
12
14
Supply voltage, VCC -- V
16
18
3
4
5
6
7
8
Supply voltage, VCC -- V
No.A1569-9/15
LA4809M
THD -- f
7
5
3
2
e-A
mod
e-B
mod
0.1
10
2 3
5 7 100
2 3
5 7 1k
2 3
VNO -- VCC
18
VCC = 12V
PO = 10mW
RL = 16Ω
Output noise voltage, VNO -- μVrms
Total harmonic distortion, THD -- %
1
5 7 10k
2 3
Rg = 620Ω
Din audio filter
17
RL = 32Ω
16Ω
16
15
4
5 7100k
6
8
Frequency, f -- Hz
VG -- fin
15
10
5
0
10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
2 3
12
RL = 32Ω
11.5
11
4
5 7100k
6
8
14
16
18
0.8
7V
V
CC
=1
Power dissipation, Pd -- W
9V
fin = 1kHz
RL = 32Ω
7V
7V
=1
V
CC
Power dissipation, Pd -- W
12
Pd -- PO
1.0
0.6
V
12
0.4
9V
0.2
0
0
1
2
3
5 7 10
2
3
5 7 100
2
3
5 7 1000
1
2
3
5 7 10
Output power, PO -- mW/ch
5 7 100
2
3
5 7 1000
3
5
VCC = 12V
fin = 1kHz
RL = 32Ω
7
5
Current drain, ICC -- A
5
3
ICC -- PO
0.1
VCC = 12V
fin = 1kHz
RL = 16Ω
7
2
Output power, PO -- mW/ch
ICC -- PO
1
Current drain, ICC -- A
10
Supply voltage, VCC -- V
V
12
0.4
18
16Ω
Pd -- PO
0.8
16
12.5
fin = 1kHz
RL = 16Ω
1.2
14
Vin = -20dBV
fin = 1kHz
Cout = 100μF
Input frequency, f in -- Hz
1.6
12
VG -- VCC
13
VCC = 12V
Vin = -20dBV
RL = 16Ω
Cout = 100μF
Voltage gain, VG -- dB
Voltage gain, VG -- dB
20
10
Supply voltage, VCC -- V
3
2
0.1
7
5
3
2
0.01
7
5
3
3
2
2
0.01
0.001
1
2
3
5
7 10
2
3
5
7 100
Output power, PO -- mW/ch
2
3
5
7 1000
1
2
3
5
7 10
2
3
5
7 100
2
71000
Output power, PO -- mW/ch
No.A1569-10/15
LA4809M
CHsep -- fin
Channel separation, CHsep -- dB
80
70
=
Ω
32 Ω
16
60
50
10
2 3
5 7 100
2 3
5 7 1k
2 3
CHsep -- VCC
80
VCC = 12V
Vin = -15dBV
Rg = 620Ω
SEP = Vin-Vout
RL
Channel separation, CHsep -- dB
90
5 7 10k
2 3
Vin = -15dBV
fin = 1kHz
Rg = 620Ω
RL = 16Ω
SEP = Vin-Vout
75
16Ω
70
65
60
4
5 7100k
6
8
Input frequency, fin -- Hz
2
3
5
7
2
1
3
5
Capacitance, Crf -- μF
7
RL = 32Ω
--85
16Ω
--90
--95
8
10
12
RL = 32Ω
--85
16Ω
--90
14
2 3
5 7 100
16
SVRR -- fin
5 7 10k
2 3
5 7100k
--70
2Ω
--80
RL
=3
16Ω
--90
--100
--25
--20
--15
--10
--5
0
SVRR -- VCC
90
Ripple rejection ratio, SVRR -- dB
A
eod
B
m
75
70
10
2 3
Input voltage, Vin -- dBV
VCC = 12V
Vin = -10dBV
Rg = 620Ω
RL = 16Ω
Din audio filter
80
5 7 1k
VMT -- Vin
--110
--30
18
mo
de-
Ripple rejection ratio, SVRR -- dB
85
2 3
VCC = 12V
f = 1kHz
V3 = 0.3V
Supply voltage, VCC -- V
90
18
--80
--60
--80
6
16
Input frequency, fin -- Hz
Vin = -10dBV
fin = 1kHz
Rg = 620Ω
V3 = 0.3V
4
14
VCC = 12V
Vin = -10dBV
RL = 16Ω
V3 = 0.3V
--95
10
10
VMT -- VCC
--75
Mute attenuation level, VMT -- dBV
Mute attenuation level, VMT -- dBV
60
Mute attenuation level, VMT -- dBV
Channel separation, CHsep -- dB
70
50
0.1
12
VMT -- fin
--75
VCC = 12V
Vin = -15dBV
fin = 1kHz
Rg = 620Ω
RL = 16Ω
SEP = Vin-Vout
80
10
Supply voltage, VCC -- V
CHsep -- Crf
90
RL = 32Ω
Vin = -10dBV
frin = 100Hz
Rg = 620Ω
RL = 16Ω
80
mode-A
B
mode-
70
60
50
40
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
Input frequency, fin -- Hz
2 3
5 7100k
3
5
7
9
11
13
15
17
Supply voltage, VCC -- V
No.A1569-11/15
LA4809M
SVRR -- Crf
90
VCC = 12V
RL = 16W
rise time ⇒ VRF × 0.7
rise time of RF voltage
3
2
A
demo
B
demo
80
70
60
1000
7
5
B
deA
demo
mo
3
2
100
7
5
3
2
50
0.1
2
3
5
7
2
1
3
5
7
Capacitance, Crf -- μF
5
2
3
5
7
2
1
3
5
7
10
7
10
Capacitance, Crf -- μF
Off time -- Crf
10000
7
5
VCC = 12V
RL = 16Ω
on time of amplifier
7
10
0.1
10
On time -- Crf
1000
VCC = 12V
RL = 16Ω
off time of amplifier
3
2
3
2
Off time -- ms
On time -- ms
Rise time -- Crf
10000
7
5
VCC = 12V
Vrin = -10dBV
fr = 100Hz
Rg = 620Ω
RL = 16Ω
Din audio filter
Rise time -- ms
Ripple rejection ratio, SVRR -- dB
100
100
7
5
B
de-
1000
7
5
mo
A
de-
mo
3
2
3
100
7
5
2
3
10
0.1
10
0.1
2
3
5
7
2
1
3
5
Capacitance, Crf -- μF
7
10
PO max -- Rrf
140
120
-B
de
mo
100
80
60
mode-A
40
20
0
100
2
7
2
1
3
5
ICCOP -- VCC
V3 = 2V
no load
no signal
6
5
4
mode-B
mode-A
3
2
2
3
5
7
2
1000
4
6
8
10
12
14
16
18
Supply voltage, VCC -- V
ISTBY -- VCC
V2 -- V3
4
V3 = 0.3V
no load
no signal
Pin 2 control voltage, V2 -- V
Standby current drain, ISTBY -- nA
5
Capacitance, Crf -- μF
Resistance, Rrf -- kΩ
10
3
7
VCC = 12V
RL = 16Ω
THD = 10%
Quiescent current drain, ICCOP -- mA
Maximum output power, PO max -- mW
2
8
6
4
2
0
VCC = 12V
mode-B
3
mode-A
2
1
0.4
2
4
6
8
10
12
14
Supply voltage, VCC -- V
16
18
0
0.5
1
1.5
2
2.5
3
Pin 3 control voltage, V3 -- V
No.A1569-12/15
LA4809M
7
5
PO max -- Ta
1
VCC = 12V
RL = 16Ω
f = 1kHz
THD = 10%
Total harmonic distortion, THD -- %
Maximum output power, PO max -- mW
1000
3
2
mode-B
100
7
mode-A
5
3
2
10
--50
--25
0
25
50
75
7
THD -- Ta
VCC = 12V
RL = 16W
f = 1kHz
PO = 10mW
5
3
2
0.1
--50
100
--25
Ambient temperature, Ta -- °C
VG -- Ta
15
40
Output noise voltage, VNO -- μV
10
0μ
F
Co
ut
=
Voltage gain, VG -- dB
Influence of output capacitors discounted
10
5
0
VCC = 12V
RL = 16Ω
f = 1kHz
Vin = -20dBV
--5
--50
--25
0
25
50
75
Mute attenuation level, VMT -- dBV
Channel separation, CHsep -- dB
70
25
50
75
--25
Quiescent current drain, ICCOP -- mA
Ripple rejection ratio, SVRR -- dB
80
25
50
Ambient temperature, Ta -- °C
25
50
75
100
75
100
VMT -- Ta
--90
--95
VCC = 12V
Vin = -10dBV
f = 1kHz
V3 = 0.3V
RL = 16Ω
5
90
0
0
--25
0
25
50
Ambient temperature, Ta -- °C
SVRR -- Ta
--25
100
10
--100
--50
100
VCC = 12V
Vin = -10dBV
frin = 100Hz
RL = 16Ω
70
--50
75
20
Ambient temperature, Ta -- °C
100
100
30
--85
80
0
75
Ambient temperature, Ta -- °C
CHsep -- Ta
--25
50
VNO -- Ta
0
--50
100
VCC = 5V
Vin = -15dBV
f = 1kHz
RL = 16Ω
60
--50
25
VCC = 12V
RL = 16Ω
Rg = 620Ω
Din audio filter
Ambient temperature, Ta -- °C
90
0
Ambient temperature, Ta -- °C
75
100
ICCOP -- Ta
VCC = 12V
no load
no signal
mode-A
4
3
2
--50
--25
0
25
50
Ambient temperature, Ta -- °C
No.A1569-13/15
100
7
5
ISTBY -- Ta
2
no load
no signal
Pin 3 control voltage, V3cnt -- V
Standby current drain, ISTBY -- nA
LA4809M
3
2
6V
10
7
5
V
CC
=1
V
12
3
2
1
7
5
3
2
0.1
--50
--25
0
25
50
75
100
Ambient temperature, Ta -- °C
V3cnt -- Ta
VCC = 12V
1.8
1.6
1.4
mod
e-A
mod
e-B
1.2
1
--50
--25
0
25
50
75
100
Ambient temperature, Ta -- °C
•Transient response characteristics (Rising characteristics)
mode-A (with no signal)
mode-A (with signal)
50ms/div
50ms/div
Load end : 20mV/div
Load end : 20mV/div
Output pin : 1V/div
Output pin : 1V/div
Pin 3 : 5V/div
Pin 3 : 5V/div
mode-B (with no signal)
mode-B (with signal)
50ms/div
Load end : 20mV/div
50ms/div
Load end : 20mV/div
Output pin : 1V/div
Output pin : 1V/div
Pin 3 : 5V/div
Pin 3 : 5V/div
No.A1569-14/15
LA4809M
•Transient response characteristics (Falling characteristics)
mode-A (with no signal)
mode-A (with signal)
100ms/div
100ms/div
Load end : 20mV/div
Load end : 20mV/div
Output pin : 1V/div
Output pin : 1V/div
Pin 3 : 5V/div
Pin 3 : 5V/div
mode-B (with no signal)
mode-B (with signal)
100ms/div
100ms/div
Load end : 20mV/div
Load end : 20mV/div
Output pin : 1V/div
Output pin : 1V/div
Pin 3 : 5V/div
Pin 3 : 5V/div
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
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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
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Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
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
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
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intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of October, 2009. Specifications and information herein are subject
to change without notice.
PS No.A1569-15/15