3. TECHNICAL BRIEF
- 74 -
3.18 VIBRATOR
The vibrator is placed in the folder cover and connected to KEYPAD PCB through FPCB.
The vibrator is driven from AD6527 by PWM.
3.19 Audio CODEC
The device integrates complete interfaces to stereo or mono microphones and a stereo headphone.
External component requirements are drastically reduced as no separate microphone or headphone
amplifiers are required. Advanced on-chip digital signal processing performs graphic equaliser, 3-D
sound enhancement and automatic level control for the microphone or line input. This chip operate as a
master or a slave, with various master clock frequencies including 12 or 24MHz for USB devices, or
standard 256fs rates such as 96kHz, 48kHz, 44.1kHz Are generated directly from the master clock
without the need for an external PLL.
VIBRATOR
VA300
EVL5M02200
100K
R340
R339
1.5K
1SS302-T5L_F_H
D300
C322
1uF
15
R338
VBAT
2SC5585
Q300
MOTOR-
VIBRATOR
Figure 3-39.
Figure 3-40.
AUDIO_CODEC
R707
47K
0
R720
10u
C703
R706
2.2K
R718
100K
C704
0.1u
C702
1u
2V8_MM
0
R721
NA
C709
R709
NA
C708
1u
R712
0
R715
0
100K
R717
R714
0
2V8_MM
1u
C706
2V8_MM
R716
100K
LOUT2
16
MCLK
1
22
MICBIAS
MODE
29
10
MONOOUT
OUT3
11
33
PGND
RINPUT1
27
RINPUT2
25
RINPUT3
23
12
ROUT1
15
ROUT2
32
SCLK
SDIN
31
VMID
21
20
VREF
9
ADCLRC
AGND
19
AVDD
18
5
BCLK
30
CSB
DACDAT
6
7
DACLRC
DBVDD
3
2
DCVDD
4
DGND
HPGND
14
17
HPVDD
28
LINPUT1
26
LINPUT2
24
LINPUT3
LOUT1
13
WM8973LEFL
U700
ADCDAT
8
0.1u
C705
R713
0
100p
C707
0
R711
R710
0
100K
R708
CAM_MIC_IN
CODEC_LRCK
DAC_DATA
CODEC_BCK
CODEC_CLK
ADC_DATA
CODEC_HPLOUT
CODEC_HPROUT
I2C_CLK
I2C_DATA
Summary of Contents for KG920
Page 3: ... 4 ...
Page 48: ...3 TECHNICAL BRIEF 49 3 8 2 AFE Analog Front End Figure 3 22 ...
Page 52: ...3 TECHNICAL BRIEF 53 3 8 5 MBGM01 5M CCD ISP Figure 3 25 ...
Page 55: ...3 TECHNICAL BRIEF 56 3 8 6 MV8620 5M back end IC Multi Media Function Figure 3 26 ...
Page 58: ...3 TECHNICAL BRIEF 59 3 9 MIDI IC YMU787 Figure 3 27 YMU787 BLOCKDIAGRAM ...
Page 108: ...4 TROUBLE SHOOTING 109 CIRCUIT WAVEFORM Figure 4 59 Graph 4 11 Figure 4 60 Figure ...
Page 109: ...4 TROUBLE SHOOTING 110 TEST POINT U602 FB602 U100 Q100 Q101 C113 C114 Figure 4 61 Figure 4 62 ...
Page 112: ...4 TROUBLE SHOOTING 113 Figure 4 67 Figure 4 68 CIRCUIT ...
Page 115: ...4 TROUBLE SHOOTING 116 WAVEFORM Graph 4 13 ...
Page 139: ...6 BLOCK DIAGRAM 140 6 BLOCK DIAGRAM Figure 6 1 ...
Page 148: ... 149 8 PCB LAYOUT ...
Page 149: ... 150 8 PCB LAYOUT ...
Page 150: ... 151 8 PCB LAYOUT ...
Page 151: ... 152 8 PCB LAYOUT ...
Page 152: ... 153 8 PCB LAYOUT ...
Page 153: ... 154 8 PCB LAYOUT ...
Page 154: ... 155 8 PCB LAYOUT ...
Page 155: ... 156 8 PCB LAYOUT ...
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