GHz PLL with I2C Bus and Four Chip Addresses
GHz PLL with I2C Bus and Four Chip Addresses
MGP 3006X
Bipolar IC
Features
q q q q q q
1-chip system for MPU-control...
Description
GHz PLL with I2C Bus and Four Chip Addresses
MGP 3006X
Bipolar IC
Features
q q q q q q
1-chip system for MPU-control (I2C Bus) 4 programmable chip addresses Short pull-in time for quick channel switch-over and optimized loop stability 2 high-current band switch outputs (20 mA) Software-compatible with SDA 3202 series Oxis III technology
P-DSO-14-1
Type MGP 3006X MGP 3006X
Ordering Code Q67000-H5114 Q67006-H5114
Package P-DSO-14-1 (SMD) P-DSO-14-1 Tape & Reel (SMD)
Combined with a VCO (tuner), the MGP 3006X device, with four hard-switched chip addresses, forms a digitally programmable phase-locked loop for use in television sets with PLL-frequency synthesis tuning. The PLL permits precise crystal-controlled setting of the frequency of the tuner oscillator between 16 and 1300 MHz in increments of 62.5 kHz, and, with a 2.4-GHz prescaler 1/2, in the TV-SAT band in increments of 125 kHz. The tuning process is controlled by a microprocessor via an I2C Bus. The I2C Bus noise immunity has been improved by a factor of 10 compared to the SDA 3202-2, and the new crystal oscillator generates a sinusoidal signal, suppressing the higher-order harmonics, which reduces the moiré noise considerably.
Semiconductor Group
1
04.93
MGP 3006X
Circuit Description Tuning Section UHF/VHF REF The tuner signal is capacitively coupled at the UHF/VHF-input and subsequently amplified. The reference input REF should be decoupled to ground using a capacitor of low series inductance. The signal ...
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