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3. TECHNICAL BRIEF
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3.6.4 Audio Section
1. Receive audio signal from microphone. C1150 use differential configuration.
2. Send audio signal to speaker. C1150 use differential configuration.
3. This section provides an audio codec with a digital-to-analog converter and an analog-to-
digital converter, a ring tone volume controller, a microphone interface, and multiple
analog input and output channels.
4. It interconnect with external device like main microphone, main receiver, and headset
jack through the AIN1N, AIN1P, AIN2N, AIN2P, AIN3N,AIN3P,AOUT1P,AOUT1N,
OUT2P,AOUT2N,AOUT3P, and AOUT3N port.
• AIN1P,AIN1N : Main microphone positive/negative terminal
• AOUT2P,AOUT2N : Main Speaker positive/negative terminal
• AIN2P,AIN2N : Ear-Mic microphone positive/negative terminal
• AOUT1P,AOUT1N : Ear-Mic speaker positive/negative terminal
Figure 3-15. AD6537B AUDIO SECTION
GPI
CSFS
CSDI
CSDO
ASFS
ASDI
ASDO
AD6537B
Control
Serial
Port
Ring Tone
Volume Controller
Audio
Serial
Port
Filter/
SRC
Filter/
SRC
DAC
ADC
PGA
PGA
PGA
AIN3P
AIN3N
8Ω
32Ω
32Ω
SPWR
AOUT2P
AOUT2N
AOUT1N
AOUT3N
AOUT3P
AOUT1P
SGND
AIN1P
AIN1N
AIN2P
AIN2N
Analog
Switch
Analog Adder
Microphone Interface
Gain
Pre-Amp
Analog
Switch
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 ...
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Page 119: ... 120 Note ...
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