LG U8120 Service Manual page 78

3. TECHNICAL BRIEF
E. PLL Block
The PLL consists of a programmable prescaler with multiple division ratios and a phase and frequency
detector with a charge pump with programmable output current. Channel frequency selection and
transmitter modulation is controlled via the prescaler modulus inputs MODA ~ MODD and the
prescaler offset value N offset. The MODA ~ MODD signals could be delayed 0, 5, 10 or 15 ns with
MD bits to be synchronized with the XO signal.
Figure 3-6 shows a block diagram of the PLL block.
Figure 3-6. Block diagram of the PLL part.
- 79 -