MB15C700 Overview
MB15C700 series is a Phase Locked Loop (PLL) frequency synthesizer of pulse swallow operation with built-in VCO suitable for Intermediate Frequency band synthesizer of mobile phones. The VCO can operate option oscillation frequency by an external inductance and capacitor. The PLL reference divider ratio and parison divider ratio are fixed , so that it is not required to set the divider ratios by a microcontroller...
MB15C700 Key Features
- Pulse swallow function
- 400 MHz High-speed Prescaler : 8/9, 16/17, 32/33
- MASK ROM optinal the parison and reference dividers : parison counter : Main counter : 5 to 4095, Swallow counter : 0 to
- Lock detector circuit: Digital lock detector circuit which is “H” level when PLL is locked
- Charge pump options : H type: Super charger circuit for high speed tuning. (IOH = -4.5 mA, IOL = 4.5 mA at PLLVDD = 2.5
- Integrates vari-cap for VCO
- Operating frequency can be arranged by the number of the external inductor and capacitor connected TANK circuit <<MON>>
- Low power supply voltage : 2.3 V to 2.7 V
- Low power supply current : 4.5 mA typ. (PLLVDD = VCOVDD = 2.5 V, fvco = 400 MHz)
- Operating temperature : -20 °C to +85 °C