3. TECHNICAL BRIEF
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3.1.2 Features
]
Baseband
• High performance fixed-point TEAKlite DSP
• C166S high performance microcontroller
• There are several Interfaces:
- I2S interface for DAI connections (for Tape Approval)
- High Speed SSC Interface for connection of external peripherals
- SIM Interface
- Keypad Interface (6x4 or 5x5 keys)
- EBU for external RAM/FLASH connection
- Asynchronous serial interface
- JTAG Interface
- Black & white and color displays are supported
- PWM source to drive vibrator
- Keypad and display backlight supported.
]
Receiver
• Constant gain, direct conversion receiver with fully integrated blocking filter
• Two integrated LNAs
• No need of interstage and IF filter
• Highly linear RF quadrature demodulator
• Programmable DC output level
• Very low power budget.
]
Transmitter
• Digital Sigma-Delta modulator for GMSK modulation, typical -163.5 dBc/Hz@20 MHz
• Single ended outputs to PA, Pout = +3.5 dBm
• Very low power budget.
]
RF-Synthesizer
•
Σ∆
Synthesizer for multi-slot operation
• Fast lock-in times (< 150 •Ïs)
• Integrated loop filter
• RF Oscillator
• Fully integrated RF VCO.
]
Crystal Oscillator
• Fully digital controlled crystal oscillator core with a highly linear tuning characteristic.
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 ...