LA6542M Просмотр технического описания (PDF) - SANYO -> Panasonic

Номер в каталоге

Компоненты Описание

производитель

LA6542M

4-Channel Bridge (BTL) Driver for CD-ROM

SANYO -> Panasonic 

LA6542M

Gain Setting (input pins and adjustment pins)

A simplified diagram of VIN and VG is shown below.

1) Consider an 11 kΩ (typ.) resistor inserted between VIN and VG.

2) When not the pin VG but the pin VIN is used alone, the BTL gain (between VO+ and VO– ) is set to 6 dB (0 dB for AMP only). This

also applies for the case when VIN is not used and an 11 kΩ external resistor is connected to VG for input.

3) Gain is set by the input impedance as seen from point A.

When VG only is used and the external resistor is R, the BTL gain (between VO+ and VO–) is

20 log (11 kΩ/R) + 6 dB.

When an 11 kΩ resistor is inserted between VIN and VG, and input is via VIN, the combined resistance Rz as seen from point A is

Rz = 5.5 kΩ. Gain is

20 log (11 kΩ /5.5 kΩ) + 6 dB = 12 dB.

VG

11 kΩ

VIN

VREF

–

VREF1

+

VSS

11 kΩ

11 kΩ

GND

–

VREF2

+

Level

shift

A

–

VO+

AMP1

+

–

VO–

AMP2

+

A11142

Offset Voltage

This IC incorporates a level shifter circuit. The input references the VREF to be applied, and references the voltage (VSS – VBE

(0.7))/2V to be output.

Specifications of any and all SANYO 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 Electric 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 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 Electric 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 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 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 December, 1998. Specifications and information herein are subject to change

without notice.

PS No. 5717-7/7

Share Link: