Panasonic G600 Technical Manual page 32
Personal cellular telephone, handheld portable, car mount kit, easy fit car mount kit, dual charger
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Also See for G600:
- Service manual (116 pages) ,
- Service manual (113 pages) ,
- Service manual (108 pages)
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8.2.4 AFC Control
The 13HMz system clock frequency is controlled by a 13bit sigma-delta D/A in the VEGA chip.
Figure 5: AFC block diagram
8.2.5 Audio
VEGA provides the analogue interface for the digital audio samples processed by the DSP in GEMINI.
Voice Uplink path
MICBIAS
Generator
MICIP
Microphone
MICIN
AUXI
Amplifier
Figure 6: Voice ADC block diagram
MCUK980101G8
Technical Guide
http://cxema.ru
13 BIT DIGITAL
MODULATOR
PROGRAMATION REGISTER
Bias
PGA
Amplifier
Auxiliary
1 BIT DAC
& LOW - PASS
FILTER
RINT1
RINT2
Sigma_Delta
SINC
Modulator
Filter
fs1=1 MHz
fs2=40 KHz
Section 8
8 - 3
3/5 V
AFC
Output swing
control
VTCXO
CEXT
600-0805
IIR
Bandpass
Filter
fs3=8.0 KHz
600-0806
VEGA
To voice
serial
interface
Issue 1
Revision 0
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