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
鹵
0.1
0.6
+0.1
-0.3
37
-
55
0.
7.2
鹵
0.1
7.0
鹵
0.1
36
25
24
0 .1
7.2
鹵
0.1
7.0
鹵
0.1
48
1
12
4
0.
3-
0.1
8
鹵
0.4
0.18
鹵
0.05
0.2
鹵
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
碌-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藲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
鈥?.3 ~ 4.5
鈥?.3 ~ 3.5
DVSS鈥?.3 ~ VDDIO+3.5
鈥? ~ +1
500
鈥?0 ~ 125
鈥?0 ~ 85
Unit
V
V
V
碌A(chǔ)
Conditions
DVDD_IO, AVDD
DVDD_CORE
0.05 M
12藲
12藲
0.05
mW
藲C
藲C
Warranty setting of single IC
鈭桪erating
: 5.0mW/藲C for operation above Ta=25藲C
February, 2003
0.01
+0.03
-0.007
0.6
鹵
0.1
0.8
+0.2
-0.1
.1
0 .4
+ 0
5
-
.1
0 .3
+ 0
13
1
2
