3. TECHNICAL BRIEF
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LDO output voltage selection
• LD1, LIO, LSIM, LBUF output voltage programmable by software.
• LMEM output voltage is selectable by pin configuration upon startup.
Active and idle power saving options:
• The flexible clock switching options allow minimizing the power consumption during the operation
phases of the E-GOLDvoice.
• Current consumption during the standby mode is minimized by reducing the clock to 32 kHz and
switching it off for most of the device. In addition, the power supply for the TEAKLite ROM is
switched off and the controller RAM is switched to a power saving mode.
Start-up and Reset Control State Machine Features
• Power up upon battery insertion, push button, alarm, charger connection.
• Detection of battery exchange or re-insertion.
• Complete start-up sequence management.
• System turn-on, system turn-off operation management including emergency (under-voltage) and
programmed shutdown functions.
• Internal reset of the baseband, including silent reset.
• Tri-state function of the baseband module.
• Standby mode controlled by VCXO_EN provided by SCCU module.
Figure 3-14-2 EGold Voice PMU
Name
Output Voltage(V)
Output Current (mA)
Comment
LRTC
2.0
4
Used for the real time and digital PMU supply
LD1
1.2/1.5
150
Used for the core supplies (MCU and DSP via switch)
LIO
1.8/2.85
30
Used for the I/O pad supply and, for example, the display
LRFXO
2.5
10
Used for the crystal oscillator supply
LMEM
2.5
100
Used for the external memory supply, voltage can be
configured during startup
LANA
2.5
100
Used for analog (audio and baseband processing) and
headset driver
LSIM
1.8/2.85
30
Used of the SIM card supply
LBUF
2.6/2.8/3.0/3.2
300
Used for the loudspeaker and earpiece driver
LRFRX
2.5
100
Used for the RF RX part
LRFTRX
1.5
120
Used for the RF TX/TX part
Содержание KG270
Страница 1: ...Date April 2007 Issue 1 0 Service Manual Model KG270 MG160 Service Manual KG270 MG160 ...
Страница 3: ... 4 ...
Страница 81: ...5 DOWNLOAD 82 5 DOWNLOAD 5 1 Download Setup Configure system like figure 5 1 Figure 9 1 Download Setup ...
Страница 87: ... 88 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM ...
Страница 92: ... 93 8 PCB LAYOUT ...
Страница 93: ... 94 8 PCB LAYOUT ...
Страница 104: ... 105 10 CALIBRATION 10 2 3 Click SETTING Memu 10 2 4 Setup Ezlooks menu such as the following fugure KG278 ...
Страница 106: ...10 CALIBRATION 107 10 2 7 Select MODEL 10 2 8 Click START for RF calibration 10 2 9 RF Calibration finish KG278 ...
Страница 107: ...10 CALIBRATION 108 10 2 10 Calibration data will be saved to the following folder ...
Страница 113: ... 114 ...
Страница 124: ...Note ...
Страница 125: ...Note ...