NJU6318A

The NJU6318A is a kind of CMOS quartz crystal oscillator which includes an oscillator amplifier, 3-state divider and 3-state output buffer. The oscillation frequency of NJU6318A is as wide as up to 50 MHz and the symmetry of 45-55% us realized over full oscillation frequency range. The oscillation amplifier incorporates feed-back resistance and oscillation capacitors, therefore, NJU6318A requires no external component except quartz crystal. The 3-stage divider generates fo, fo/2, fo/4 and fo/8 and only one frequency selected by internal circuits is output. The 3-state output buffer is TTL compatible and capable of 10 TTL driving. And the input level of CONT terminal is also TTL compatible.

There are some features of NJU6318A as follows: (1)operating voltage: 3.0 to 6.0 V; (2)maximum oscillation frequency: 50 MHz; (3)low operation current; (4)high fan-out: TTL 10; (5)3-state output buffer; (6)selected frequency output (mask option): only one frequency out of fo, fo/2, fo/4 and fo/8 output; (7)oscillation capacitors Cg and Cd on-chip; (8)oscillation and/or output stand-by function; (9)package outline: CHIP/EMP 8; (10)CMOS technology.

The following is about the absolute maximum ratings of NJU6318A (Ta=25): (1)supply voltage, VDD: -0.5 to +7.0 V; (2)input voltage, VIN: -0.3 to VDD+0.5 V; (3)output voltage, VO: -0.3 to VDD+0.5 V; (4)input current, IIN: ±10 mA; (5)output current, IO: ±25 mA ; (6)power dissipation (EMP), PD: 200 mW; (7)operating temperature range, Topr: -40 to +85; (8)storage temperature range, Tstg: -65 to +150.