03W024A
Melody sound source LSI for cellular phone
BU8709KN
Description
BU8709KN is a melody sound source LSI for cellular
phones. This LSI generates 64 high quality polyphonic
tones through high sampling rate (fs=44.1KHz).
1 ADPCM encoder and 2 ADPCM decoders functions
are embedded, providing mixing capabilities. It can
customize output sounds by an equalizer function and
display the signals by Graphic Equalizer. It also has
Reverb function, as well as LED & Vib synchronization.
Dimension (Unit : mm)
1.4
±
0.1
0.6
+0.1
-0.3
37
7.2
±
0.1
7.0
±
0.1
36
25
24
0 .1
7.2
±
0.1
7.0
±
0.1
48
1
12
0.1
8
±
0.4
0.18
±
0.05
0.2
±
0.05
Features
1) Simultaneous generation of up to 64 polyphonic tones
out of a tone palette of 222 sounds
2) High-quality tone reproduction using Fs=44.1kHz,
QFN48U
two-voice method
3) 12bit pitch bending and modulation support
4) Stereo and monaural modes
5) Built-in equalizer (3 channels) and vibration function
6) Built-in LED (3 channels)
7) Built-in reverb function
8) Plays up to four songs simultaneously
9) Built-in ADPCM encoder (1 channel) and decoder (2 channel), enables mixing with melody
10)Select among
µ-law,
A-law, and linear input for encoder
11)Control from CPU using serial or parallel interface
12)Built-in FIFO for sound source and ADPCM to reduce CPU's processing load
13)Built-in graphic equalizer (7-band)
14)Supports digital output (standard format or IIS format)
15)Provides 1-Poly mode for low power consumption
Applications
Sound source for cellular phones and portable appliances
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Max. I/O supply voltage
Max. CORE supply voltage
Voltage applied to pin
Input current
Power dissipation
Storage temperature range
Operating temperature range
Symbol
VDDIO
VDDCO
VIN
IIN
Pd
Tstg
Topr
Limits
–0.3 ~ 4.5
–0.3 ~ 3.5
DVSS–0.3 ~ VDDIO+3.5
–1 ~ +1
500
–50 ~ 125
–30 ~ 85
Unit
V
V
V
µA
Conditions
DVDD_IO, AVDD
DVDD_CORE
0.05 M
12˚
12˚
0.05
mW
˚C
˚C
Warranty setting of single IC
∗Derating
: 5.0mW/˚C for operation above Ta=25˚C
February, 2003
0.01
+0.03
-0.007
0.6
±
0.1
0.8
+0.2
-0.1
55
0.
4
0.
3-
.1
0 .4
+ 0
-
5
-
.1
0 .3
+ 0
13
Recommended Operating Conditions (Ta=25˚C)
Parameter
I/O power supply voltage
Ambient temperature
MCLK input frequency
SCLK input frequency
MCLK duty
Analog pin's load resistance
Symbol
VDDIO
Ta
FMCLK
FSCLK
DMCLK
ZAN
Min.
2.7
2.25
–30
2.688
—
40
10
Typ.
3.0
2.5
25
—
—
50
—
Max.
3.3
2.75
85
20
20
60
—
Unit
V
V
˚C
MHz
MHz
%
kΩ
Scale precision is approximately 0.2%.
After DC Coupling
Conditions
DVDD_IO, AVDD
DVDD_CORE
CORE power supply voltage VDDCO
Electrical characteristics (Unless otherwise noted, Ta=25˚C)
Parameter
<Digital DC characteristics>
High-level input voltage
Low-level input voltage
High-level input current
Low-level input current
High-level output voltage
Low-level output voltage
<Analog DC characteristics>
VREF pin voltage
Analog pin voltage
<General characteristics>
VREF pin rise time
<Analog pin characteristics>
Analog amplitude
Analog Idd 1
Digital Idd 10
Digital Idd 11 (DVDD_CORE)
Digital Idd 12 (DVDD_IO)
Analog Idd 2
Digital Idd 20 (DVDD_CORE)
Digital Idd 21 (DVDD_IO)
Symbol
VIH
VIL
IIH
IIL
VOH
VOL
VAGND
VOUT
TRVR
VMAX
AIDD1
DIDD10
DIDD11
DIDD12
AIDD2
DIDD20
DIDD21
Min.
DVDD_IO-0.5
Typ.
—
—
—
—
—
—
0.5AVDD
0.5AVDD
Max.
—
DVSS+0.5
Unit
V
V
µA
µA
V
V
V
V
mS
Vp-p
mA
mA
mA
mA
µA
µA
µA
Conditions
—
—
–1
DVDD_IO-0.3
1
—
—
DVSS+0.3
VIH=VDDIO
VIL=DVSS
IOH=–0.8mA
IOH=0.8mA
IOUT=0A (no load)
IOUT=0A (no load) Not playing
When CVREF=1µF, NRST=L→H
Theoretical value for dynamic range
Playing
Not playing MIDI CLK control="101"
Playing 64POLY
Playing
Standby mode
Standby mode
Standby mode
—
0.475AVDD
0.47AVDD
0.525AVDD
0.53AVDD
—
—
—
—
—
—
—
—
—
15
1.8
1.5
28
56
0.4
—
—
—
25
—
2.5
35
65
1
1
10
5
Power consumption DVDD_CORE=2.5V, DVDD_IO=3.0V, AVDD=3.0V, internal operation frequency SYS_CLK=50MHz
Block Diagram
MIDI Core
Sequencer Core
D7~D0
MIDI FIFO
DLS
Parameter
LED
3ch/VIB
LED 3ch/VIB
Program
ROM
Parametric
Equalizer
parameter
LED, VIB
Control
LED1~3
VIB
IFSEL
Sequencer
CPU
Sequencer
CPU
Each ch Status
MIDI
DSP
SO(/WR)
SIO(/AO)
CPU I/F
Voice Parameter
L/R
Output
FIFO
Graphic
Equalizer
To CPU I/F
Block
Work RAM
Work RAM
Program
ROM
Wave Table
ROM
Wave Table ROM
Work RAM
Mixing
&
Over
Sampling
OverSampling
Digital
Output
Format
Standard/IIS
D/A
Converter
SCLK(/RD)
SEL(/CS)
DIGLR
DIGDT
DIGCK
Hard Logic
for MIDI
VREF
L_OUT
R_OUT
MONO_OUT
INT
UCS
RAM
Wave
ROM
ADPCM Core
NRST
Master ch
Encoder
FIFO
E
D
D
ADPCM
Encoder
&
Decoder
DSP
Digital
filter
Slave ch
FIFO
EIEN
EIDT
EICK
D
Clock control
D
test
TESTMODE 0~2
TESTBUS 0~5
test
E
Slave ch
44.1kHz/24kHz
Timing Generator
PLL
PLL_FILTER
MCLK
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