BU8768FV datasheet, PDF - EEWORLD Datasheet

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BU8768FV: DescriptionCall Progress Tone Generator, PDSO16, SSOP-16; CategoryWireless rf/communication Telecom circuit; File Size64KB，2 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/; Environmental Compliance

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BU8768FV Overview

Call Progress Tone Generator, PDSO16, SSOP-16

BU8768FV Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	ROHM Semiconductor
Parts packaging code	SOIC
package instruction	SSOP-16
Contacts	16
Reach Compliance Code	compliant
JESD-30 code	R-PDSO-G16
JESD-609 code	e3/e2
length	5 mm
Number of functions	1
Number of terminals	16
Maximum operating temperature	70 °C
Minimum operating temperature	-20 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Encapsulate equivalent code	TSSOP16,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	3 V
Certification status	Not Qualified
Maximum seat height	1.25 mm
Maximum slew rate	0.0025 mA
Nominal supply voltage	3 V
surface mount	YES
Telecom integrated circuit types	TONE GENERATOR
Temperature level	COMMERCIAL
Terminal surface	TIN/TIN COPPER
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	10
width	4.4 mm

BU8768FV Preview

00W121A

one generator LSI for cellular phones

BU8768FV

Description

The BU8768FV is a tone generator IC for cellular

phones that can produce triple chords simultaneously.

Tone and volume in each sound source can be controlled

separately by serial control. Master volume is integrated.

Output can be selected from pseudo sine wave and

special square wave. The special square wave is a

waveform that can take sound pressure by even a small

speaker.

Dimension (Units : mm)

5.0±0.2

6.4±0.3

4.4±0.2

1. 15±0.1

0. 1

0.65

0.22±0. 1

0.3Min.

0. 1

SSOP-B16

Features

1) Three chords are generated by CPU control.

2) Master clock (4.8MHz/3.25MHz)

3) Adjustable parameter needed for generating chords.

4) Built-in DTMF generating function

5) Can select a waveform parameter for generating sound.

6) Control from CPU by serial data

7) Built-in LPF for smoothing

8) SSOP-B16 package

Applications

Melody sound at receiving or holding a call.

December, 2000

0.15±0. 1

Absolute Maximum Ratings (Ta=25˚C)

Parameter

Digital block supply voltage

Analog block supply voltage

Digital pin applied voltage

Analog pin applied voltage

Power dissipation

Storage temperature range

Operating temperature range

Symbol

DVDD

AVDD

VDin

VAin

Tstg

Topr

Limits

—0.3 ~

DVSS—0.3 ~

AVSS—0.3 ~

450

—50 ~

—20 ~

+4.5

DVDD+0.3

AVDD+0.3

Unit

+125

+70

˚C

*Derating : 4mW/˚C for operation above Ta=25˚C , (70mmx70mm, t=1.6mm) glass epoxy mounting .

Electrical characteristics

(Unless otherwise noted; Ta=25˚C, DVDD=AVDD=3.0V)

Parameter

Analog block supply voltage

Current consumption 1

Current consumption 2

AOUT maximum output

(1 sound source) level

Load resistance

Load capacity

Symbol

AVDD

Idd1

Idd2

Vout

Rload

Cload

Min.

2.7

—

289.0

—

Typ.

3.0

—

1.2

342.5

—

Max.

3.6

1.8

2.5

415.4

—

100

Unit

µA

mVrms

kΩ

Conditions

Difference with DVDD: Less than 0.3V

Clock stop at sleep mode

Operating: ATT123=000, f=986Hz

pseudo-sine wave

ATT123=000, f=986Hz

pseudo-sine wave

Block Diagram

PRMOD

TEST1

TEST2

DGND

TEST3

AVDD

AGND

DVDD

TEST CIRCUIT

WAVE GEN1(h)

WAVEFORM

GENERATOR

WAVE GEN2(m)

WAVE GEN3(I)

ATT

VOLUME

DAC

SMOOTHING

FILTER

CLOCK

GENERATOR

CONTROL

BU8768FV

MCLK

CKSEL

SCLK

SDATA

SSTB

RSTB

TEST4

AOUT

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