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DS1085LZ-12

Description
Programmable Oscillators 3.3V EconOscillator f Synthesizer
CategoryPassive components   
File Size340KB,21 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS1085LZ-12 Overview

Programmable Oscillators 3.3V EconOscillator f Synthesizer

DS1085LZ-12 Parametric

Parameter NameAttribute value
Product CategoryProgrammable Oscillators
ManufacturerMaxim
PackagingTube
Factory Pack Quantity100
DS1085L
www.maxim-ic.com
3.3V EconOscillator Frequency
Synthesizer
FEATURES
§
§
§
§
§
§
§
§
§
§
§
§
User-Programmable Frequency Synthesizer
Programmable From 4.1kHz to 66MHz
Dual Synchronous Outputs
4.13MHz to 66MHz Reference Oscillator
Output
4.1kHz to 66MHz Main Oscillator Output
Single 3.0 to 3.6V Supply
Three Resolution Options
2-Wire Serial Interface
0.75% Absolute Accuracy
Nonvolatile (NV) Frequency Settings
No External Timing Components
Power-Down Mode
OUT1
OUT0
V
CC
GND
1
2
3
4
8
7
6
5
SCL
SDA
CTRL1
CTRL0
SO (150mil)
PIN DESCRIPTION
OUT1
- Main Oscillator Output
OUT0
- Reference Oscillator Output
- Power-Supply Voltage
V
CC
GND
- Ground
CTRL1 - Control Pin for OUT1
CTRL0 - Control Pin for OUT0
SDA
- 2-Wire Serial Data Input/Output
SCL - 2-Wire Serial Clock
OSCILLATOR
OUTPUT RANGE
4.1kHz to 66MHz
4.1kHz to 66MHz
4.1kHz to 66MHz
ORDERING INFORMATION
PIN ASSIGNMENT
DEVICE
DS1085LZ-5
DS1085LZ-12
DS1085LZ-25
PACKAGE
150mil SO
150mil SO
150mil SO
STEP
SIZE
5kHz
12.5kHz
25kHz
DESCRIPTION
The DS1085L is a dual-output frequency synthesizer requiring no external timing components for
operation. It can be used as a standalone oscillator or as a dynamically programmed, processor-controlled
peripheral device. An internal master oscillator can be programmed from 33MHz to 66MHz with three
resolution options of 5kHz, 12.5kHz, and 25kHz. A programmable 3-bit prescaler (divide-by-1, 2, 4, or 8)
permits the generation of a reference oscillator output (OUT0) from the master, ranging from 4.13MHz to
66MHz. A second independent prescaler and a 1-to-1025 divider allow the generation of a main oscillator
output (OUT1) from 4.1kHz to 66MHz. The two outputs, although synchronous with the master, can be
independently programmed. The combination of programmable master oscillator, prescalers, and dividers
allows the generation of thousands of user-specified frequencies. All master oscillator, prescaler, and
divider settings are stored in NV (EEPROM) memory, providing a default value on power-up that allows
it to be used as a standalone oscillator. A 2-wire serial interface allows in-circuit, on-the-fly programming
of the master oscillator, prescalers (P0 and P1), and divider (N). This allows dynamic frequency
modification, if required, or, for fixed-frequency applications, the DS1085L can be used with factory- or
user-programmed values.
EconOscillator is a trademark of Dallas Semiconductor.
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