Audio Concept; Audio Hw Architecture - Nokia 2608 Service Manual

Audio concept

Audio HW architecture

The audio control and proc
b locks. These blocks handle and process the audio data signals. The baseband supports 2 microphone inputs, 1
line inputs and three receive
REC
LCD_DRV_N
QSC6020
FM
Si4702B
LDO1
BL D
(CP
SC624A
BL_EN_GPIO_52
I2C_GPIO_1 8,19
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essing is provided by the QSC6020 which contains the audio codec, the MCU and DSP
r (earpiece)/ speaker outputs.
Indicator LED
20mA
mono
HPH
FM_SEN_N_GPIO_29
FM_RST_N_GPIO_21
FM_CLK_GPIO_30
FM_SDIO_GPIO_45
FM_SCLK_GPIO_44
Stereo
FM_R
FM_L
1.8V for MIC
LDO2
DC
river
+2LDO) BL1
BL2
BL3
FLASH L
Figure 19 Audio HW architecture
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AUDIO_RES ET_GPIO_4
I2C_GPIO_18, 19
Audio Subsystem
TI TPA2050D4
LCD Backlight
LED_1 & LE D_ 2
20mA
ED
2 0mA
System Module and User Interface
SPK
R
L
Headset_Det_GPIO_7
RM-376
Headphone
Jack
Issue1