Sanyo LV4985VH For portable electronic device use 1.2w x 2ch btl power amplifier Datasheet

Ordering number : ENA1568A
Bi-CMOS IC
LV4985VH
For Portable Electronic Device Use
1.2W × 2ch BTL Power Amplifier
Overview
The LV4985VH has a 2-channel power circuit amplifier including an electronic volume control built in. It has a function
for switching the headphone driver and also has a standby function to reduce the current drain. It is a power amplifier IC
optimal for driving the speakers used in portable equipment and low power output equipment.
Applications
Portable DVD players, active speakers, compact LCD-TVs/LCD monitors, notebook PCs and more.
Features
• 2-cannels BTL power amplifier built-in : Standard output power = 1.2W (VCC = 5V, RL = 8Ω, THD = 10%)
Output coupling capacitor is unnecessary because of differential output type.
• Volume function built-in (variable range: 69dB standard), DC voltage control system
• Mute function built-in (shared with VOL-min)
• Standby function built-in (three-value control ⇒ Shared with the second amplifier stop control pin) :
Standard standby current = 0.01μA (VCC = 5V)
• Second amplifier stop control function built-in (three-value control ⇒ Shared with the standby pin) :
Headphone driver switch (for BTL/SE switch)
Simple MUTE (Only BTL power amplifier path)
• Thermal protection circuit built-in
• Operation supply voltage range : VCC = 4.5V to 5.5V
• 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.
D1609 SY / O1409 SY PC 20090914-S00001 No.A1568-1/15
LV4985VH
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum supply voltage
VCC max
Allowable power dissipation
Pd max
Conditions
Ratings
* Mounted on a specified board.*
Unit
6
V
1.45
W
150
°C
Maximum junction temperature
Tj max
Operating temperature
Topr
-20 to +75
°C
Storage temperature
Tstg
-40 to +150
°C
* Specified board (SANYO Semiconductor Evaluation board) : 50mm × 50mm × 1.6mm, glass epoxy both side.
Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
VCC
Recommended load resistance
RL
Allowable operating supply voltage
VCC op
Conditions
Ratings
Unit
5
V
8 to 32
Ω
4.5 to 5.5
V
range
Electrical Characteristics at Ta = 25°C, VCC = 5V, fin = 1kHz, RL = 8Ω, V9 = 2.5V, V10 = 3V,
pwr-amp-VG = 20.7dB
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
Quiescent current drain
ICCOP
No signal, no load
11.5
20
mA
Standby current drain
ISTBY
No signal, V9 = 0.3V
0.01
5
μA
Maximum output power
PO max
THD = 10%
0.8
1.2
25.8
27.8
W
BTL voltage gain
VG
Vin = -30dBV
Volume voltage gain
VGVOL
Vin = -30dBV, volume output pin
29.8
dB
Channel balance
CHBAL
Vin = -30dBV
+2
dB
Total harmonic distortion
THD
Vin = -30dBV
0.4
1
Maximum output noise voltage
VN max
Rg = 620Ω, 20 to 20kHz
0.7
1.4
Minimum output noise voltage
VN min
Rg = 620Ω, 20 to 20kHz
0.06
Channel separation
CHsep
Vin = -20dBV, Rg = 620Ω
Volume variable range
WVOL
Vin = -30dBV
Mute attenuation level
ATTMT
Vin = -10dBV, V10 = 0.25V, 1kHz-BPF
Ripple rejection ratio
SVRR
Rg = 620Ω, fr = 100Hz, Vr = -20dBV
Output DC offset voltage
VOS
Reference voltage
VREF
7.1
-2
58
-72
0
dB
mVrms
66
dB
69
dB
-82
dBV
30
-30
Pin 6 voltage,
%
mVrms
dB
+30
2.5
mV
V
Amplifier operation reference DC voltage source
Volume maximum control voltage
MXVOL
Pin 10 control voltage
2.8
Muting control voltage
VMT
Pin 10 control voltage
0
0.25
V
V
High level control voltage (pin 9)
V9CH
Full operating mode (BTL mode)
2.3
VCC
V
Middle level control voltage (pin 9)
V9CM
Second amplifier non-operating mode (SE mode)
1.3
1.7
V
Low level control voltage (pin 9)
V9CL
Standby (shutdown) mode
0
0.3
V
No.A1568-2/15
LV4985VH
Package Dimensions
unit : mm (typ)
3313
Pd max -- Ta
6.5
0.5
6.4
8
4.4
14
1
1.3
7
0.22
0.15
0.65
1.5
1.45
SANYO evaluation board (double-sided) :
50 × 50 × 1.6mm3 (glass epoxy)
1.2
0.87
0.8
0.4
0.35
Independent IC
0.21
0
--20
0
20
40
60
80
100
Ambient temperature, Ta -- °C
0.1 (1.3)
1.5max
(2.35)
Maximum power dissipation, Pd max -- W
1.6
SANYO : HSSOP14(225mil)
No.A1568-3/15
LV4985VH
PIN2
VLOUT2
VOL
STBY
IN2
13
12
11
10
9
8
VOLUME
CNT
BIAS
CNT
2nd-AMP
CNT
OUT2-1
14
-
OUT2-2
2st-amp
+
Radiator Fin
GND
VOLUME
Block Diagram
1st-amp
-
VCC
+
TSD
+
GND
-
VOLUME
Radiator Fin
2st-amp
+
1st-amp
1
2
3
4
5
6
7
OUT1-2
OUT1-1
VCC
PIN1
VLOUT1
VREF
IN1
Test Circuit
Vvol
V9cnt
14
13
12
11
10
9
8
1
2
3
4
5
6
7
Vin
+
VCC
No.A1568-4/15
LV4985VH
Evaluation Board Circuit
OUT2-2 OUT2-1 SE2
VOL
STBY
IN2
100μF
+
100kΩ
18kΩ
0.33μF
0.33μF
14
13
12
11
10
9
8
1
2
3
4
5
6
7
100kΩ
18kΩ
0.33μF
1μF
0.33μF
+
100μF
OUT1-2 OUT1-1 SE1
0.1μF
+
IN1
2.2μF
VCC
GND
Evaluation Board Layout (50mm × 50mm × 1.6mm)
Top Layer
Bottom Layer
No.A1568-5/15
LV4985VH
Application Circuit Example 1
C8
Speaker
R4
R3
100kΩ
18kΩ
R7
from CPU
from CPU
(BTL mode only)
R8
0.33μF
R5
C4
0.33μF
14
13
12
11
10
9
8
1
2
3
4
5
6
7
R2
100kΩ
R1
18kΩ
C3
0.33μF
C5
1μF
C2
Vin2
C1
Vin1
0.33μF
Speaker
+ C6
C7
0.1μF
2.2μF
VCC
Application Circuit Example 2
C8
Speaker
R4
R3
100kΩ
18kΩ
R7
R8
R5
R6
from CPU
100μF
from CPU
33Ω
to CPU
C10
+
0.33μF
C4
0.33μF
14
13
12
11
10
9
8
1
2
3
4
5
6
7
C2
Vin2
C1
Vin1
100KΩ
R13
100KΩ
R14
R12
1KΩ
R10
from CPU
(BTL mode/SE mode changeover)
VCC
R11
1KΩ
R2
100kΩ
R1
18kΩ
Speaker
R9
C9
+
33Ω
100μF
C3
0.33μF
C5
1μF
0.33μF
+ C6
C7
0.1μF
2.2μF
VCC
No.A1568-6/15
LV4985VH
Pin Functions
Pin No.
Pin Name
Pin Voltage
Description
Equivalent Circuit
VCC = 5V
1
OUT1-2
14
OUT2-2
2.49
Power amplifier 2nd output pin.
VCC
VCC
VREF
+
1 14
-
10kΩ
GND
2
OUT1-1
13
OUT2-1
2.49
Power amplifier 1st output pin.
VCC
VCC
VREF
+
2 13
-
10kΩ
30kΩ
GND
3
VCC
5.0
Power supply pin.
4
PIN1
2.49
Power amplifier input pin.
12
PIN2
VCC
12 4
+
VREF
5
VLOUT1
11
VLOUT2
2.49
Volume output pin.
VCC
VREF
+
6
VREF
2.49
5 11
-
VOL
Ripple filter pin.
VCC
(for filtering capacitor connection)
VREF
VCC
50kΩ
6
600kΩ
50kΩ
GND
7
IN1
8
IN2
0
Input pin.
VCC
15kΩ
8
7
+
-
5kΩ
GND
Continued on next page.
No.A1568-7/15
LV4985VH
Continued from preceding page.
Pin No.
Pin Name
Pin Voltage
Description
Equivalent Circuit
VCC = 5V
9
STBY
External apply
Standby/2nd amplifier stop control pin.
VCC
0 to 0.3V ⇒ Standby mode
VCC
1.3 to 1.7V ⇒ SE mode
2.3 to VCC ⇒ BTL mode
+
30kΩ
-
9
150kΩ
VB1
GND
10
VOL
External apply
Volume control pin.
VCC
VCC
10
GND
Usage Note
1. Input coupling capacitor (C1 and C2)
C1 (C2) is an input coupling capacitor that is used to cut the DC component. The input coupling capacitor C1 (C2) and
the input resisters of 20kΩ (15kΩ + 5kΩ) make up a high-pass filter, attenuating the bass frequency. Therefore, the
capacitance value must be selected with due consideration of the cut-off frequency.
The cut-off frequencies are expressed by the following formulas.
1ch ⇒ fc1 = 1/ (2π × C1 × 20000)
2ch ⇒ fc2 = 1/ (2π × C2 × 20000)
This capacitor affects the pop noise at startup. Note with care that increasing the capacitance value lengthens the
charging time of the capacitor, which will make the pop noise louder.
2. Input coupling capacitors (C3 and C4) in the power amplifier block
C3 (C4) is an input coupling capacitor that is used to cut the DC component. The input coupling capacitor C3 (C4) and
the input resistor R1 (R3) make up a high-pass filter, attenuating the bass frequency. Therefore, the capacitance value
must be selected with due consideration of the cut-off frequency.
The cut-off frequencies are expressed by the following formulas.
1ch ⇒ fc3 = 1/ (2π × C3 × R1)
2ch ⇒ fc4 = 1/ (2π × C4 × R3)
This capacitor affects the pop noise at startup. Note with care that increasing the capacitance value lengthens the
charging time of the capacitor, which will make the pop noise louder.
3. BTL voltage gain of the power amplifier block
The voltage gain of the first amplifier is determined by the ratio between the resistors R1 and R2 (R3 and R4).
1ch ⇒ Vg1 = 20 × log (R2/R1) … unit : dB
2ch ⇒ Vg2 = 20 × log (R4/R3) … unit : dB
Therefore, the BTL voltage gain of the power amplifier block is expressed by the following formulas.
1ch ⇒ VgBTL1 = 6 + 20 × log (R2/R1) … unit : dB
2ch ⇒ VgBTL2 = 6 + 20 × log (R4/R3) … unit : dB
The BTL voltage gain of the power amplifier block must be set in the range of 0 to 26dB.
No.A1568-8/15
LV4985VH
4. pin 6 capacitor (C5)
This capacitor is a ripple filter capacitor. The internal resistors (600kΩ + 50kΩ) and C5 make up a low-pass filter that
is used to reduce the power supply ripple component and increase the ripple rejection ratio.
Note that inside the IC, the rising-transient-response-characteristic of the pin 6 voltage (reference voltage) is used to
activate the automatic pop noise reduction circuit. Therefore, when reducing the C5 capacitance value to increase the
voltage rise speed, the design should take into account that the pop noise increases during voltage rise.
5. Power supply line capacitor (C6 and C7)
The bypass capacitor C7 is used to remove the high frequency component that cannot be eliminated by the power
supply capacitor C6 (chemical capacitor). Place the bypass capacitor C7 as near to the IC as possible, and use a ceramic
capacitor with good high frequency characteristics.
When using a stabilized power supply, these capacitors can also be combined into a single 2.2μF ceramic capacitor.
Note that when the power supply line is relatively unstable, the power supply capacitor C6 capacitance value must be
increased.
6. Load capacitance
When connecting a capacitor between the output pin and ground to suppress electromagnetic radiation or other
purposes, the effects of this capacitor may cause the power amplifier phase margin to be reduced, resulting in
oscillation. When adding this capacitor, care should be taken for the capacitance value.
Recommended capacitance value : 1000pF to 0.1μF
7. Headphone drive
When also using the BTL amplifier’s first amplifier as the headphone amplifier, it is recommended to adjust the level
by inserting series resistors R9 (R10) to the signal line as shown in Application Circuit Example-2.
Note that this series resistor, the headphone load resistance and the output coupling capacitors C9 (C10) make up a
high-pass filter, so this should be taken into account in the design. The cut-off frequencies are expressed by the
following formulas.
1ch ⇒ fc5 = 1/ (2π × C9 × (R9 + RL))
2ch ⇒ fc6 = 1/ (2π × C10 × (R10 + RL))
8. Standby pin (pin 9)
As shown in Figure1, by controlling the standby pin, the mode changeover can be made between standby mode,
single-ended (SE) operating mode, and BTL operating mode.
State
Standby mode
Pin 9 voltage
Port A
Port B
0V to 0.3V
Low
Low
SE operating mode
1.3V to 1.7V
High
Low
BTL operating mode
2.3V to VCC
High
High
A-port
B-port
R5
R5
STBY
9
A-port
R6
CPU
LV4985VH
Fig. 1
R5
9 STBY
9
STBY
VCC
3
VCC
CPU
Fig. 2
Fig. 3
When not using the single-ended operating mode, a direct control is possible by connecting the standby pin to the CPU
output port. However, it is recommended to insert a series resistor R5 (1kΩ or more) as shown in Figure 2 in case the
pin is affected by the digital noise from CPU.
In addition, when not using the standby mode, the pin 9 can also be used interlocked with the power supply as shown in
Figure 3. Since there exists an internal current limiting resistor (30kΩ), the series resistor R5 can be eliminated, but the
current I9 expressed by the following formula flows through the pin 9, so this should be taken into account in the
design.
Pin 9 inflow current (unit : A) : I9 = 4.7 × 10-6 + (VCC - 0.7)/(R5 + 30000)
No.A1568-9/15
LV4985VH
9. Electronic volume control (pin 10 control)
By changing voltage applied to the pin 10, the voltage gain of the built-in VCA(variable control amplifier) is varied.
Since the ripple component of applied voltage is generated, a stabilized power source must be used.
When controlling the amplifier using the PWM signal from the CPU, use a resistor and capacitor for DC conversion as
shown in Figure 4 and adjust the voltage gain by changing the pulse width of PWM signal. In this case, the frequency
of PWM signal used must be higher than audio frequency band.
R7
PWM output
10 VOL
C8
R8
CPU
LV4985VH
PWM signal
Discharge resistor
Fig. 4
10. Thermal protection circuit
The IC has a built-in thermal protection circuit that can reduce the risk of breakdown or degradation when the IC
becomes abnormally hot for some reason. When the internal chip junction temperature Tj rises to approximately 170°C,
this protective circuit operates to cut off the power supply to the power amplifier block and stop signal output.
Operation recovers automatically when the chip temperature drops to approximately 130°C.
Note that this circuit cannot always prevent breakdown or degradation, so sufficient care should be taken for using the
IC. When the chip becomes abnormally hot, immediately turn off the power and determine the cause.
11. Short-circuit between pins
Turning on the power supply with the short-circuit between terminals leads to the deterioration and destruction of IC.
When fixing the IC to the substrate, please check that the solder is not short-circuited between the terminals before
turning on the power.
12. Load Short-circuit
Leaving the IC in the load short-circuit for many hours leads to the deterioration and destruction of the IC.
The load must not be short-circuited absolutely.
13. Maximum rating
When the rated value used is just below to the absolute maximum ratings value, there is a possibility to exceed the
maximum rating value with slight extrusion variable. Also, it can be a destructive accident.
Please use within the absolute maximum ratings with sufficient variation margin of supply voltage.
In addition, the package of this IC has low thermal radiation characteristics, so secure sufficient thermal radiation by
providing a copper foil land on the printed circuit board near the heat sink.
No.A1568-10/15
THD -- PO
100
7
5
10
7
Total harmonic distortion, THD -- %
Total harmonic distortion, THD -- %
LV4985VH
3
2
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
THD -- f
VCC = 5V
PO = 200mW
VG = 27.8dB
V10 = 3V
3
2
1
7
5
3
2
0.1
10
5 7 10
2 3
5 7 100
Output power, PO -- mW
1.0
VCC = 5V
fin = 1kHz
7
2 3
5 7 10k
2 3
5 7100k
ICC -- PO
VCC = 5V
fin = 1kHz
5
Current drain, ICC -- A
Power dissipation, Pd -- W
1.2
1.0
0.8
0.6
0.4
3
2
0.1
7
5
3
2
0.2
0
0.01
2
3
5 7 0.1
2
3
5 7 1
2
3
0
0.01
5 7 10
2
3
5 7 0.1
Output power, PO -- W/ch
3
5 7
2
1
3
5 7 10
Volume - Att -- V10cnt
20
VCC = 5V
Vin = -26dBV
Volume attenuation value , Att -- dB
7
5
3
2
1
7
5
3
2
0.1
--30
2
Output power, PO -- W/ch
THD -- Vin
10
0
--20
--40
--60
--80
--100
--28
--26
--24
--22
--20
--18
--16
--14
--12
--10
--8
0.5
0
Input level, Vin -- dBV
VNO -- V10cnt
1
1
1.5
2
2.5
3
Pin 10 control voltage, V10cnt -- V
VMT -- fin
--50
7
Mute control voltage, VMT -- dBV
Total harmonic distortion, THD -- dB
5 7 1k
Frequency, f -- Hz
Pd -- PO
1.4
2 3
5
3
2
0.1
7
5
3
2
0.01
0
0.5
1
1.5
2
2.5
Pin 10 control voltage, V10cnt -- V
3
--60
V
--70
V,
0.3
=
10
--80
V
=
V9
9
=
2.3
5V
1.
,V
3V
=
10
V10 = 3V, V9 = 0.3V
--90
V
--100
--110
--120
10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
2 3
5 7100k
Input frequency, fin -- Hz
No.A1568-11/15
LV4985VH
CHsep -- fin
Ripple rejection ratio, SVRR -- dB
70
60
50
40
10
2 3
5 7 100
2 3
5 7 1k
SVRR -- f
70
2 3
5 7 10k
2 3
60
IN
M
LVO
Channel separation, CHsep -- dB
80
50
40
VOL-MAX
30
20
10
10
5 7100k
2 3
5 7 100
Input frequency, fin -- Hz
Quiescent current drain, ICCO -- mA
No load
No signal
0.05
2.5V
, V9 =
V
3
=
V10
V
9 = 2.5
0.3V, V
V10 =
1.5V
V, V9 =
V10 = 3
12
10
8
5 7 10k
2 3
5 7100k
ISTBY -- VCC
No load
No signal
V9 = 0.3V
0.03
6
0.02
4
0.01
2
0
1
2
3
4
5
0
0
6
1
Supply voltage, VCC -- V
Maximum output power, PO max -- W
C
25
3
2
-25 C
10
7
5
1
7
5
3
2
0.1
10
2
3
5 7 100
2
3
5 7 1000
2
3
1
--20
--10
Channel separation, CHsep -- dB
3
2
0
10
20
30
40
0
50
Ambient temperature, Ta -- C
10
20
30
40
50
60
70
80
60
70
80
CHsep -- Ta
80
5
--10
6
Ambient temperature, Ta -- C
THD -- Ta
--20
5
1.2
0.8
--30
5 710000
7
0.1
--30
4
1.4
Output power, PO -- mW
1
3
PO max -- Ta
1.6
50 C
3
2
2
Supply voltage, VCC -- V
THD -- PO
100
7
5
Ta = 80 C
Total harmonic distortion, THD -- %
2 3
0.04
0
Total harmonic distortion, THD -- %
5 7 1k
Frequency, f - Hz
ICCO -- VCC
14
2 3
60
70
80
75
70
65
60
55
50
--30
--20
--10
0
10
20
30
40
50
Ambient temperature, Ta -- C
No.A1568-12/15
LV4985VH
SVRR -- Ta
20
Volume attenuation value , Att -- dB
Ripple rejection ratio, SVRR -- dB
80
70
VOL-MIN
60
50
40
VOL-MAX
30
20
--30
--20
--10
0
10
20
30
40
50
60
70
Volume - Att -- Vvol
VCC = 5V
Vin = -30dBV
0
--20
--40
C a=
25 T
C
-25
--60
0.5
Ambient temperature, Ta -- C
Voltage gain, VG -- dB
Voltage gain, VG -- dB
9
29
28
27
26
--30
--20
--10
0
10
20
30
40
50
60
70
8
--20
--10
600
60
20
30
40
50
60
70
50
--30
80
--20
--10
Ambient temperature, Ta -- C
0.48
Pin 10 control voltage, V10cnt -- V
Mute control voltage, VMT -- dBV
--80
V10 = 0.3V, V9 = 2.3V
--90
V10 = 3V, V9 = 0.3V
--100
V10 = 3V, V9 = 1.5V
--110
--30
--20
--10
0
10
20
30
40
50
Ambient temperature, Ta -- C
20
30
40
50
60
70
80
0
10
20
30
40
50
60
70
80
60
70
80
Ambient temperature, Ta -- C
VMT -- Ta
--70
10
VNO -- Ta
90
70
10
0
Ambient temperature, Ta -- C
700
0
3
6
80
--10
2.5
Volume - VG -- Ta
5
--30
80
VNO -- Ta
--20
2
7
800
500
--30
1.5
VCC = 5V
V10 = 3V
Vin = -30dBV
fin = 1kHz
OUTPUT : VLOUT
Ambient temperature, Ta -- C
900
1
Control voltage, Vvol -- V
VG -- Ta
30
C
--80
--100
0
80
80
60
70
80
V10cnt -- Ta
VCC = 5V
V9 = 2.5V
mute mode
0.46
0.44
0.42
0.4
--30 --20
--10
0
10
20
30
40
50
Ambient temperature, Ta -- C
No.A1568-13/15
LV4985VH
V9cnt -- Ta
2.2
VCC = 5V
V10 = 3V
SE mode
Pin 9 control voltage, V9cnt -- V
Pin 9 control voltage, V9cnt -- V
1
0.9
0.8
0.7
0.6
--30
--20
--10
0
10
20
30
40
50
60
70
V9cnt -- Ta
VCC = 5V
V10 = 3V
BTL mode
2.1
2
1.9
1.8
--30
80
--20
--10
Ambient temperature, Ta -- °C
14
ICCOP -- Ta
VCC = 5V
V9 = 2.5V
V10 = 3V
No load
No signal
Standby current drain, ISTBY -- μA
Quiescent current drain, ICCOP -- mA
15
13
12
11
10
9
--30
--20
--10
0
10
20
30
40
50
Ambient temperature, Ta -- °C
0
10
20
30
40
50
60
70
80
70
80
Ambient temperature, Ta -- °C
60
70
80
1
7
5
ISTBY -- Ta
V9 = 0.3V
No signal
3
2
V
0.1
7
5
V
CC
=6
5V
3
2
0.01
7
5
3
2
0.001
--30
--20
--10
0
10
20
30
40
50
60
Ambient temperature, Ta -- °C
No.A1568-14/15
LV4985VH
•Transient response characteristics (volume max. setting)
Rising (V9 ⇒ high) characteristics
Falling (V9 ⇒ low) characteristics
50ms/div
Load end : 50mV/div
50ms/div
Load end : 50mV/div
First output pin : 1V/div
First output pin : 1V/div
Pin 9 : 5V/div
Pin 9 : 5V/div
•Transient response characteristics (volume mute. setting)
Rising (V9 ⇒ high) characteristics
Falling (V9 ⇒ low) characteristics
50ms/div
Load end : 50mV/div
50ms/div
Load end : 50mV/div
First output pin : 1V/div
First output pin : 1V/div
Pin 9 : 5V/div
Pin 9 : 5V/div
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PS No.A1568-15/15
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