lv4993m Sanyo Semiconductor Corporation, lv4993m Datasheet

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lv4993m

Manufacturer Part Number
lv4993m
Description
For Portable Audio Equipment Monaural Btl Power Amplifier
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
Ordering number : ENA1962
LV4993M
Overview
Application
Function and Feature
LV4993M 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.
IC recorder, Portable-TV, Radio, Portable-NAVI, LCD-monitor, Digital-photo-frame, and etc.
• Monaural BTL power amplifier built-in
• Operation at low voltage possible (Operate with two dry battery cells)
• Standby function built-in
• 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
• Output phase compensation capacitor not necessary
Standard output power 1 = 1.5W (V CC = 5V, R L = 8Ω, THD = 10%)
Standard output power 2 = 0.5W (V CC = 3V, R L = 8Ω, THD = 10%)
Output coupling capacitor not necessary because of differential output type
V CC = 1.8V or more
Standard current drain at standby = 0.02μA (V CC = 5V)
BTL voltage gain = 0 to 26dB
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
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
device, the customer should always evaluate and test devices mounted in the customer
equipment.
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
Bi-CMOS IC
For Portable Audio Equipment
Monaural BTL Power Amplifier
'
s products or
61511 SY No.A1962-1/13

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lv4993m Summary of contents

Page 1

... Ordering number : ENA1962 LV4993M Overview LV4993M 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 power amplifier IC optimal for speaker drive used in battery-driven portable equipment and the low output power system equipment. ...

Page 2

... Reference (pin 1) voltage VREF Pin 2 control HIGH voltage VSTBH Pin 2 control LOW voltage VSTBL Pin 4 control HIGH voltage VCNTH Pin 4 control LOW voltage VCNTL LV4993M Conditions PCB mounted* Symbol Conditions op1 RL=8 to 32Ω, Ta=-10 to 85° op2 RL=8 to 32Ω, Ta=-40 to 85° op3 RL=4 to 7Ω ...

Page 3

... Package Dimensions unit : mm (typ) 3032E 5 (0.6) 1.27 0.15 0.35 SANYO : MFP8(225mil) Evaluation board Size : 50mm×40mm×1.6mm Top Layer(Top view) LV4993M Pd max -- Ta 1200 Specified board: 50×40×1.6mm Specified board 1000 (Both side) 900 800 600 400 Independent IC 300 0 -40 - Ambient temperature ...

Page 4

... Block Diagram and Sample Application Circuit IN 1 STBY from CPU 2 VREF 3 CNT from CPU 4 Test Circuit STBY LV4993M AMP1 - + V CC BIAS TSD - CONTROL + AMP2 1 2 LV4993M OUT1 GND GND 6 OUT2 No.A1962-4/13 ...

Page 5

... OUT2 2.5 6 GND External impression 8 OUT1 2.5 LV4993M Description Input pin Standby control pin •Standby mode 0.3V •Operation mode at 1 Standard voltage pin Second amplifier stop control pin •When OPEN : BTL mode •When external is impressed BTL mode at 1. mode o.3V ...

Page 6

... Figure 1 when the standby function is not used. Please set the value of series resistance (R3) so that 2nd pin voltage may become 3V or less. Current ( that flows in 2nd pin can be calculated by the next formula. -6 +(V CC −0.7) 7* R3+30000 LV4993M STBY 2 Fig. 1 ...

Page 7

... 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. LV4993M No.A1962-7/13 ...

Page 8

... Supply voltage 0.7 0.6 0.5 0.4 0.3 0.2 0 0.01 0.1 Output power LV4993M 100 fin =1kHz 6dB 0 0. 200mW VG = 6dB ...

Page 9

... V4 =0.3V --120 --125 --40 --35 --30 --25 --20 --15 Input voltage, Vin -- dBV SVRR -- 0.01 0.1 Frequency LV4993M 1000 100 0.01 1000 100 ...

Page 10

... Supply voltage Istby -- Ta 10000 no signal 7 no load 0. 1000 100 --40 -- Ambient temperature LV4993M load no signal 3.5 3 2 0.5 V 100 no signal no load signal no load 3 ...

Page 11

... Output power 1.8 1.6 1.4 1.2 1 0.8 --40 -- Ambient temperature 6.5 6 5.5 5 --40 -- Ambient temperature LV4993M 100 0 0.01 0.2 0.18 0.16 0.14 0.12 0.1 0.08 80 100 --40 --20 --90 --100 --110 --120 80 100 ...

Page 12

... Time axis:50msec/div Mute release Transient response characteristics (ON→OFF) CH1:Load end [100mV/div] CH2:8pin (OUT1) [1V/div] CH3:4pin (CNT) [2V/div] Time axis:2msec/div LV4993M Falling Transient response characteristics CH1:Load end [100mV/div] CH2:8pin (OUT1) [1V/div] CH3:2pin (STBY) [2V/div] Time axis:50msec/div Mute Transient response characteristics (OFF→ON) ...

Page 13

... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of June, 2011. Specifications and information herein are subject to change without notice. LV4993M PS No.A1962-13/13 ...

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