BU8709KN
器件资料摘要：
Description
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,
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 m-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
Dimension (Unit : mm)
*Derating : 5.0mW/˚C for operation above Ta=25˚C
February, 2003
03W024A
BU8709KN
Melody sound source LSI for cellular phone
0
.
6
–
0
.
1
0
.
2
–
0
.
0
5
7
.
0
–
0
.
1
7
.
2
–
0
.
1
7.0 – 0.1
7.2 – 0.1
0.4
0.18 – 0.05
0
.1
8
–
0
.1
0.05
12˚12˚
0
.
0
1
+
0
.
0
3
-
0
.
0
0
7
3
-
0
.
4
5 +
0
.
1
-
0
.
3
0
.
5
5
0.6
+
0
.
1
-
0
.
4
1.4 – 0.1
+0.1
-0.3
0
.
8
+
0
.
2
-
0
.
1
0.05 M
121
13
24
48
37
2536
QFN48U
Max. I/O supply voltage DVDD_IO, AVDD
DVDD_CORE
Warranty setting of single IC
Max. CORE supply voltage
Voltage applied to pin
Input current
Parameter Symbol Limits Unit Conditions
VDDIO
VDDCO
VIN
IIN
–0.3 ~ 4.5
–0.3 ~ 3.5
DVSS–0.3 ~ VDDIO+3.5
–1 ~ +1
V
V
V
mA
Absolute Maximum Ratings (Ta=25˚C)
Power dissipation Pd 500 mW
Storage temperature range Tstg –50 ~ 125 ˚C
Operating temperature range Topr –30 ~ 85 ˚C
Sound source for cellular phones and portable appliances
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.
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,
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 m-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
Dimension (Unit : mm)
*Derating : 5.0mW/˚C for operation above Ta=25˚C
February, 2003
03W024A
BU8709KN
Melody sound source LSI for cellular phone
0
.
6
–
0
.
1
0
.
2
–
0
.
0
5
7
.
0
–
0
.
1
7
.
2
–
0
.
1
7.0 – 0.1
7.2 – 0.1
0.4
0.18 – 0.05
0
.1
8
–
0
.1
0.05
12˚12˚
0
.
0
1
+
0
.
0
3
-
0
.
0
0
7
3
-
0
.
4
5 +
0
.
1
-
0
.
3
0
.
5
5
0.6
+
0
.
1
-
0
.
4
1.4 – 0.1
+0.1
-0.3
0
.
8
+
0
.
2
-
0
.
1
0.05 M
121
13
24
48
37
2536
QFN48U
Max. I/O supply voltage DVDD_IO, AVDD
DVDD_CORE
Warranty setting of single IC
Max. CORE supply voltage
Voltage applied to pin
Input current
Parameter Symbol Limits Unit Conditions
VDDIO
VDDCO
VIN
IIN
–0.3 ~ 4.5
–0.3 ~ 3.5
DVSS–0.3 ~ VDDIO+3.5
–1 ~ +1
V
V
V
mA
Absolute Maximum Ratings (Ta=25˚C)
Power dissipation Pd 500 mW
Storage temperature range Tstg –50 ~ 125 ˚C
Operating temperature range Topr –30 ~ 85 ˚C
Sound source for cellular phones and portable appliances
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.