View LA4810M_1063582.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Ordering number : ENN8213
Monolithic Linear IC
LA4810M
Overview
Stereo/Monaural BTL Power Amplifier
The LA4810M stereo/monaural BTL power amplifier is an IC that has been developed for portable radios and compact radio cassette players/recorders containing a preamplifier, a power amplifier, and an electronic volume control
Applications
* Audio equipment such as portable radios and compact radio cassette players/recorders
Functions & Features
* 2-channel stereo power amplifier * Stereo/monaural BTL selector * Electronic volume control * Incorporates two channels of low-voltage (VCC=1.8V or higher) drive power amplifiers EIAJ output power 1=125mW typical (VCC=3V, RL=8) EIAJ output power 2=280mW typical (VCC=4.5V, RL=8) * Configurable as a monaural BTL power amplifier (selected at pin 2) EIAJ output power 3=350mW typical (VCC=3V, RL=8) EIAJ output power 4=600mW typical (VCC=4.5V, RL=16) * Onchip electronic volume * Onchip ripple filter
Specifications
Maximum Ratings at Ta=25C
Parameter Maximum supply voltage Allowable Power Dissipation Operating Temperature Storage Temperature Symbol VCC max Pd max1 Topr Tstg Ta60C, when mounted on a PCB* Conditions Ratings 8 700 -10 to +60 -40 to +150 Unit V mW C C
* Specified board: 114.3mmx76.1mmx1.6mm Board material: glass epoxy
Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 products described or contained herein.
92706 / 61305 KK JK No.8213-1/12
LA4810M
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Allowable operating supply voltage range 1 Allowable operating supply voltage range 2 VCC VCCOP1 VCCOP2 RL=8 RL=16 Symbol Conditions Ratings 3.0 1.8 to 4.5 3.0 to 6.0 Unit V V V
* Adequate consideration must be given to the allowable power dissipation when determining the supply voltage to be used. Electrical Characteristics at Ta = 25C, VCC=3V, fin=1kHz, RL=8
Parameter Quiescent current Voltage gain BTL voltage gain Channel balance Output DC offset voltage difference Maximum output power1 Maximum output power2 Maximum output power3 Maximum output power4 Total harmonic distortion BTL total harmonic distortion Output noise voltage BTL output noise voltage Channel separation Volume attenuation POMX1 POMX2 POMX3 POMX4 THDS THDB VNS VNB SCH VOL THD=10% THD=10%,VCC=4.5V THD=10%,BTL mode THD=10%,BTL mode, VCC=4.5V,RL=16 At VIN=-20dBm, PO=50mW At VIN=-20dBm, PO=50mW, BTL mode Rg=0, f=20 to 20kHz Rg=0, f=20 to 20kHz, BTL mode VIN=-40dBm, 1kHz-BPF Attenuation at VIN=-40dBm, VOL at center position 3 90 180 220 400 125 280 350 600 0.4 0.5 0.45 0.6 -68 7.5 2.5 2.5 0.9 1.2 -58 14 mW mW mW mW % % mVrms mVrms dBm dB Symbol ICCOP GS GB BCH DCOS BTL mode Test Conditions No signal is present. VIN=-40dBm VIN=-40dBm,BTL mode 31.3 36.3 -3 -80 min typ 5.5 34.3 40.3 0 0 max 11 37.3 44.3 3 80 Unit mA dB dB dB mV
0dBm=1mW (R=600)774.6mVrms
No.8213-2/12
LA4810M
Pin Description
Pin Voltage Pin No. 1 16 Pin Symbol IN2 IN1 Equivalent Circuit Diagram VCC=3V 0 VCC=4.5V 0 Input pins Description
IL07036 2 SW 1.23 1.23 MONO/BTL Selector pin
ILA07037 3 4 13 NC NF2 NF1 1.45 2.2 Power amplifier NF pins (Connect a NF capacitor across these pins.)
ILA07038 5 12 6 11 7 10 GND2 GND1 PGND2 PGND1 OUT2 OUT1 1.45 2.2 Power amplifier output pins 0 0 Power amplifier GND pins 0 0 Preamplifier GND pins
ILA07039
Continued on next page.
No.8213-3/12
LA4810M
Continued from preceding page.
Pin Voltage Pin No. 8 Pin Symbol RIPPLE Equivalent Circuit Diagram VCC=3V 2.71 VCC=4.5V 4.07 Description Ripple filter pin (Connect a filter capacitor.)
ILA07040 9 14 VCC VOL 3 0 to 1.23 (Apply) 4.5 0 to 1.23 (Apply) Power pin Volume control pin
ILA07041 15 REG 1.23 1.23 Internal regulator pin (Connect a stabilization capacitor.)
ILA07042
No.8213-4/12
LA4810M
Block Diagram
ILA07043
Test Circuit Diagram
ILA07044
No.8213-5/12
LA4810M
Application Circuit Example (Stereo Mode)
ILA07045
Application Circuit Example (BTL Mode)
ILA07046
No.8213-6/12
LA4810M
Operating Precautions
1. Electronic volume control (pin 14) The voltage gain of the variable gain preamplifier can be changed by controlling the dc voltage at pin 14 (max. gain is approx. 13.5 dB). Pin 14 must be connected to GND when the internal electronic volume control is not to be used. The recommended resistance of the external variable resistor is 20 k or greater. Maximum gain V14=0V (GND) Minimum gain V14=1.25V (voltage at pin 15) 2. Stereo/BTL selector pin (pin 2) The stereo and monaural BTL modes can be selected by controlling pin 2. Stereo mode Pin 2 Connect to GND (or 0.3V or below). BTL mode Pin 2 Keep open. 3. Phase compensation components (C6, R1, C7, and R2) Note that the values of the phase compensation capacitors and resistors to be connected to the output pins (pins 7 and 10) vary depending on their print pattern. C6, C7: 0.1 F or greater R1, R2: 1.5 to 4.7 4. Power supply bypass capacitor (C11) The bypass capacitor C11 must be placed as close to the power pin (pin 9) as possible. 5. Ground of the power amplifier output stage Pins 6 and 11 serve as GND pins for the power amplifier output stage. Their print pattern must be designed so that the pins are kept as low in impedance as possible. 6. Short-circuit across pins Turning on the IC with some of its pins short-circuited may cause characteristic deterioration of or fatal damage to the IC. After installing the IC on a board and before turning on power, make sure that its pins are not short-circuited by solder or other foreign materials. 7. Short-circuit of the load Keeping the IC with its load short-circuited for an extended period of time may cause characteristic deterioration of or fatal damage to the IC. Never short-circuit the load of the IC. 8. Maximum ratings It is likely that the maximum ratings of the IC may be exceeded on a slight change in operating conditions if the IC is used at or near its ratings. Since such a condition may lead to a fatal failure accident, allow for adequate margins for fluctuations in supply voltage and to make sure that the IC is used within its maximum ratings range.
No.8213-7/12
LA4810M
No.8213-8/12
LA4810M
No.8213-9/12
LA4810M
No.8213-10/12
LA4810M
No.8213-11/12
LA4810M
Package Dimensions
unit : mm 3035B
Specifications of any and all SANYO Semiconductor 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. SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or 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 products (including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining 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 mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Semiconductor Co., Ltd. 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 product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO Semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of June, 2005. Specifications and information herein are subject to change without notice. PS No.8213-12/12

▲Up To Search▲

Price & Availability of LA4810M

	To Download LA4810M Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .