3. TECHNICAL BRIEF
- 46 -
3.13 Speaker & MIDI IC
C1150 don’t use buzzer. but uses the loud speaker and Melody IC which makes the robust
joyful melody sounds.
• Melody IC control
2GPIO are assigned to control melody IC. Melody data is transferred to melody IC.
Figure 3-27. SPEAKER & MIDI IC
This phone have a melody IC of Yamaha, YMU759B is a synthesis LSI for portable
telephone that is capable of playing high quality music by utilizing FM synthesizer and
ADPCM decoder. This chipset is equipped with Yamaha's original FM synthesizer, with
which the device is capable of simultaneously generating up to 16 voices with different
tones, that is 16 polys. YMU759B includes a speaker amplifier low ripple whose maximum
output is 550mW at SPVDD = 3.6V.
(16 Poly MIDI)
VMEM
47p
C412
R406
10K
0.1u
C409
1u
C402
C407
47p
R402
39K
C411
47p
VBAT
C408
47p
R404
150K
R409
4.7
R408
4.7
10K
R403
1000p
C404
C405
3.3K
R405
0.1u
0.1u
VBAT
C410
U402
LMS4684ITLX
B3
COM1
B1
COM2
D2
GND
IN1
C3
IN2
C1
D3
NC1
NC2
D1
NO1
A3
NO2
A1
V+
A2
0.01u
C401
C406
47p
R407
100K
17
SPOUT1
18
SPOUT2
15
SPVDD
SPVSS
16
7
VDD
9
VREF
VSS
8
29
_CS
3
_IRQ
_RD
31
_RST
4
_WR
28
25
D2
24
D3
23
D4
D5
22
D6
21
D7
20
EQ1
12
13
EQ2
EQ3
14
2
EXT1
EXT2
19
10
HPOUT_L
11
HPOUT_R
IFSEL
5
PLLC
6
SDOUT
32
U401
YMU759B
A0
30
CLK1
1
27
D0
26
D1
R401
0
C403
100p
SPK_RCV_SEL
SPK_REC_N
SPK_REC_P
RECP
RECN
13MHZ
MIDI_RESET
ADD00
RD
MIDI_CS
WR
MIDI_INT
DATA08
DATA09
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
Summary of Contents for C1150
Page 1: ...Service Manual Model C1150 Service Manual C1150 Date October 2005 Issue 1 0 ...
Page 3: ......
Page 99: ...Note 100 ...
Page 104: ... 105 8 PCB LAYOUT 8 PCB LAYOUT ...
Page 105: ... 106 8 PCB LAYOUT ...
Page 113: ...10 STAND ALONE TEST 114 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 117: ...Note 118 ...
Page 119: ... 120 Note ...
Page 135: ...Note 136 ...