RC6505

The RC6505 incorporates IF gain stages, reference generators and a crystal oscillator on a single chip. The high input impedance enables direct interface to a SAW filter, while maintaining a low noise figure. The IF output can be further filtered externally and fed to the on-chip fully differential buffer/driver. This buffer is extremely useful when driving low impedance terminations like a differential input to an A/D. The RC6505 is specially suited in IF sampling applications for minimizing the parts count and thus achieving smaller board sizes and lower system costs. The IF section Works on a 12V supply voltage. The oscillator section runs on 5V supply. The RC6505 is available in a 24 Lead SOIC package.

The features of RC6505 can be summarized as (1)integrated analog IF front-end; (2)fully differential I/O; (3)if flat bandwidth from 25 MHZ to 55 MHx; (4)48dB minimum gain at IF frequency; (5)simple interface to SAW filter; (6)9dB input noise ugure; (7)direct interface to A/D converter; (8)XTAL oscillator operating to SOMI-Iz; (9)more than 50dB IMD3; (10)industry standard 24-lead SOIC package.

The absolute maximum ratings of RC6505 are (1)VCC supply voltages ,VCC_IF1 VCC_lF2, VCC_BUF, VCC-RF : 135V; (2)Vin input voltages BUF_lN+, BUF_IN-, XTL1 XTL2: GND-03  to VCC+03V; (3)input current (power on or off): ±10 mA; (4)Tstg (storage temperature):  -40°C to 125 °C; (5)Tj junction temperature:150 °C; (6)JA (SO24 thermal resistance): 70°C/W; (7)lead soldering 10 seconds: 300°C; (8)snort circuit tolerence(no output can be snorted to ground).(Functional operation under any of these conditions is NOT implied. performance and reliability are guaranteed only if operating conditions are no exceeded.)