BU8730KV Rohm Semiconductor, BU8730KV Datasheet

BU8730KV

Manufacturer Part Number

BU8730KV

Description

IC PCM LINEAR CODEC VQFP48

Manufacturer

Rohm Semiconductor

Datasheet

1.BU8730KV.pdf (11 pages)

Specifications of BU8730KV

Function

Linear CODEC

Interface

Serial

Number Of Circuits

Voltage - Supply

2.7 V ~ 3.3 V

Power (watts)

400mW

Operating Temperature

-50°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

48-VQFP

Includes

DTMF Generator, GSM Triple Tone Generator, Scale Tone Signal Generator

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Supply

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The BU8730KV is a linear codec IC developed for use with digital cellular telephones. It contains a 14-bit precision linear

codec and various other analog input / output features.

Also, there is a built-in DAI and many tone signal functions making this IC perfect for use with GSM cellular telephones.

FApplications

Digital cellular telephones

FFeatures

1) )3V single power supply (V

2) Low current consumption of 8.2mA (typ.) when fully

3) Built-in 14-bit precision linear codec.

4) Transmission filter for the codec unit conforms to

5) DTMF signal, GSM triple tone, and scale tone signal

6) Signal generator and output level adjustment circuits

7) Built-in PLL circuit for system clock generation.

FAbsolute maximum ratings (Ta = 25_C)

Linear codec IC for digital cellular tele-

phones

BU8730KV

Communication ICs

operating and 20 A (max.) when powered down

ITU-T recommendation G.714.

generator functions are built into the tone signal gen-

erator block.

are built in with the sounder output functions.

= 3V).

= 2.7V to 3.3V).

8) Analog input / output functions:

9) Internal DAI (digital audio interface) with GSM11.10

10) Internal DSP interface circuit supports multiple DSP

11) VQFP 48-pin package.

S Built-in mic amplifier with gain switching capabili-

S Data signal I / O circuit allows for connection to ex-

S Receiver output, ringer output, and EXT output are

support.

formats.

ties.

ternal devices.

soft mute compatible.

621

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BU8730KV Summary of contents

Page 1

... BU8730KV The BU8730KV is a linear codec IC developed for use with digital cellular telephones. It contains a 14-bit precision linear codec and various other analog input / output features. Also, there is a built-in DAI and many tone signal functions making this IC perfect for use with GSM cellular telephones. ...

Page 2

... Communication ICs FRecommended operating conditions (Ta = 25_C) FBlock diagram 622 BU8730KV ...

Page 3

... Communication ICs FPin descriptions BU8730KV 623 ...

Page 4

... Communication ICs FElectrical characteristics (unless otherwise noted 25_C, DV FElectrical characteristics (gain of each attenuator = 0dB) 624 BU8730KV = RXV = TXV = 3.0V, FSYNC = 8kHz ...

Page 5

... Communication ICs BU8730KV 625 ...

Page 6

... Communication ICs 626 BU8730KV ...

Page 7

... Communication ICs FDigital AC characteristics BU8730KV 627 ...

Page 8

... Communication ICs FMeasurement circuit 628 BU8730KV ...

Page 9

... Communication ICs FApplication example BU8730KV 629 ...

Page 10

... Communication ICs FExternal dimensions (Units: mm) 630 BU8730KV ...

Page 11

Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...

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