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PDF LV4985VH Data sheet ( Hoja de datos )
| Número de pieza | LV4985VH | |
| Descripción | 1.2W x 2ch BTL Power Amplifier | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENA1568A
LV4985VH
Bi-CMOS IC
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
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
Evaluation Board Circuit
LV4985VH
OUT2-2 OUT2-1 SE2
100μF
+
VOL
100kΩ
18kΩ
0.33μF
14 13 12 11 10
STBY
9
IN2
0.33μF
8
1234567
100kΩ
18kΩ
0.33μF
1μF
0.33μF
GND
+
100μF
OUT1-2 OUT1-1 SE1 VCC
0.1μF + 2.2μF
IN1
Evaluation Board Layout (50mm × 50mm × 1.6mm)
Top Layer
Bottom Layer
No.A1568-5/15
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
LV4985VH
THD -- PO
100
7
5
3
2
10
7
5
3
2
1
7
5
3
2
0.1
0.01
2 3 5 7 0.1
2 3 571
2
1.4
VCC = 5V
fin = 1kHz
Output power, PO -- mW
Pd -- PO
1.2
3
5 7 10
1.0
0.8
0.6
0.4
0.2
0
0.01 2 3 5 7 0.1 2 3 5 7 1
2 3 5 7 10
Output power, PO -- W/ch
THD -- Vin
10
7
5
3
2
10 VCC = 5V
7 PO = 200mW
5 VG = 27.8dB
V10 = 3V
3
2
THD -- f
1
7
5
3
2
0.1
10 2 3 5 7100 2 3 5 7 1k 2 3 5 7 10k 2 3 5 7100k
Frequency, f -- Hz
1.0
VCC = 5V
7 fin = 1kHz
ICC -- PO
5
3
2
0.1
7
5
3
2
0
0.01 2 3 5 7 0.1 2 3 5 7 1
2
Output power, PO -- W/ch
Volume - Att -- V10cnt
20
VCC = 5V
Vin = -26dBV
3
0
5 7 10
--20
1
7
5
3
2
0.1
--30 --28 --26 --24 --22 --20 --18 --16 --14 --12 --10
Input level, Vin -- dBV
VNO -- V10cnt
1
--8
7
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
--40
--60
--80
--100
0
--50
0.5 1 1.5 2 2.5
Pin 10 control voltage, V10cnt -- V
VMT -- fin
3
--60
--70
--80
--90
V10 =V100.3=V3,VV, V99==21..53VV
V10 = 3V, V9 = 0.3V
--100
--110
--120
10
2 3 5 7100 2 3 5 7 1k 2 3 5 7 10k 2 3 5 7100k
Input frequency, fin -- Hz
No.A1568-11/15
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
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