Features and Benefits
- Processor-controlled or stand-alone solid-state oscillator
- Frequency changes on the fly
- Dual, low-jitter, synchronous fixed-frequency outputs
- 2-wire serial interface
- Frequency outputs 4.87kHz to 66.666MHz ±1.25% variation over temperature and voltage
- ±0.5% initial tolerance
- Nonvolatile frequency settings
- Single 2.7V to 3.6V supply
- No external components
- Power-down mode
- Synchronous output gating
The DS1077L is a dual-output, programmable, fixed-frequency oscillator requiring no external components for operation. The DS1077L can be used as a processor-controlled frequency synthesizer or as a stand-alone oscillator. The two synchronous output operating frequencies are user-adjustable in submultiples of the master frequency through the use of two on-chip programmable prescalers and dividers. The specific output frequencies chosen are stored in nonvolatile (EEPROM) memory. The DS1077L defaults to these values upon power-up.
The DS1077L features a 2-wire serial interface that allows in-circuit on-the-fly programming of the programmable prescalers (P0 & P1) and divider (N) with the desired values being stored in nonvolatile (EEPROM) memory. Design changes can be accommodated in-circuit, on-the-fly by simply programming different values into the device (or reprogramming previously programmed devices). Alternatively, for fixed-frequency applications previously programmed devices can be used and no connection to the serial interface is required. Preprogrammed devices can be ordered in customer-requested frequencies.
The DS1077L is available in SO or µSOP packages, allowing the generation of a clock signal easily, economically, and using minimal board area. Chip-scale packaging is also available on request.
- Cable Modems
- Cell Phones
- Computer Peripherals
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The DS1070K EconOscillator programming kit is a complete hardware/software solution for programming Dallas Semiconductor's 2-wire EconOscillator™ products for evaluation and prototyping new designs. The kit is compatible with the DS1077(L), DS1085(L), DS1086(L), and DS1087(L).
Features & Benefits
- Programs and Reads the Registers of the DS1077(L), DS1085(L), DS1086(L), DS1087(L)
- Built-in Settings Calculator Determines the Settings Required for the Desired Frequency
- Win95/WinNT 4.0-Compatible Software
- ZIF Sockets for Both 8-Pin µSOP and 8-Pin SO Devices
- 2.7V to 5.5V Operation
Documentation & Resources
DS1077L Reliability Data1/12/2023
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.