The DS1065 is a fixed frequency oscillator that requires no external components for operation. Numerous operating frequencies are possible in the range of approximately 30 kHz to 100 MHz through the use of an on-chip programmable prescaler and divider. The DS1065 features a master oscillator followed by a prescaler and then a programmable divider. The prescaler and programmable divider are user-programmable with the desired values being stored in nonvolatile memory. This allows the user to buy an off the shelf component and program it on site prior to board production. Design changes can be accommodated easily by simply programming different values into the device (or reprogramming previously programmed devices). The DS1065 is shipped from the factory configured for half the maximum operating frequency. Contact the factory for specially programmed devices. The DS1065 features a dual-purpose Input/Output pin. If the device is powered up in Program mode this pin can be used to input or output voltage.
The DS1065 is a fixed‑frequency oscillator that requires no external components. It provides output frequencies from roughly 30 kHz to 100 MHz using an on‑chip programmable prescaler (1, 2, 4) and a programmable divider (1‑513). The device is supplied in a TO‑92 (3‑lead) package and uses a single 5 V supply.
Programming is performed via the 1‑Wire™ protocol on the dual‑purpose I/O pin. By applying a pull‑up resistor before power‑up the part enters programming mode, allowing the MUX and DIV registers to be written. After programming, the device returns to normal operation when powered down and the pull‑up is removed.
| Output frequency range | 30 kHz to 100 MHz |
|---|---|
| Supply voltage (VCC) | 5 V ±5 % |
| Package | TO‑92 (3‑lead) |
| Programmable divider range (N) | 2 to 513 |
| Maximum output frequency (DS1065‑100) | 100 MHz |
The default DIV register value is 0, which results in a divider of two.
The voltage on any pin relative to ground may not exceed –1.0 V to +7.0 V.