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DS1077L Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. DS1077L
Description  3V EconOscillator/Divider
Download  21 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1077L Datasheet(HTML) 1 Page - Maxim Integrated Products

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011006
FEATURES
§ 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
STANDARD FREQUENCY OPTION
Note: x denotes package option
DS1077Lx-40
40.000MHz to 4.87kHz
DS1077Lx-50
50.000MHz to 6.09kHz
DS1077Lx-60
60.000MHz to 7.32kHz
DS1077Lx-66
66.666MHz to 8.13kHz
Contact the factory for the availability of
additional frequencies.
PIN ASSIGNMENTS
OUT1
OUT0
1
2
3
4
GND
SCL
CTRL0
CTRL1
SDA
8
7
6
5
VCC
PIN DESCRIPTIONS
OUT1
- Main Oscillator Output
OUT0
- Reference Output
VCC
- Power-Supply Voltage
GND
- Ground
CTRL1
- Control Pin for OUT1
CTRL0
- Control Pin for OUT0
SDA
- 2-Wire Serial Data
Input/Output
SCL
- 2-Wire Serial Clock
ORDERING INFORMATION
Note: XXX denotes frequency option
DS1077LZ-XXX
8-pin 150mil SO
DS1077LU-XXX
8-pin 118mil µSOP
DESCRIPTION
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.
DS1077L
3V EconOscillator/Divider
www.maxim-ic.com
150mil SO
118mil µSOP


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