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參數(shù)資料
| 型號： | ML2039CP |
| 元件分類： | 數(shù)字信號處理外設(shè) |
| 英文描述： | 1-BIT, DSP-NUM CONTROLLED OSCILLATOR, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 152K |
| 代理商： | ML2039CP |
October 1998
ML2039
500kHz, Serial Input
Programmable Sine Wave Generator
1
GENERAL DESCRIPTION
The ML2039 is a precision programmable sine wave
generator with a frequency range of DC to 500kHz. The
device is capable of generating a wide frequency range
of low distortion sine waves with no external passive
components. The frequency of the sine wave output is
programmed by a 16-bit word that is loaded through a
serial input. The sine wave output frequency determined
by of the programmed value and the clock frequency.
The clock frequency is derived from either an external
crystal connected to the device or an external clock input
to provide a stable and accurate frequency reference.
This clock is available as an output at a frequency of of
the input clock.
The sine wave output of the ML2039 has an amplitude of
2.0VP-P centered at a 2.5V level. The device functions
from a single 5V power supply.
BLOCK DIAGRAM
FEATURES
s
Programmable output frequency:
DC to 400kHz—using a crystal
DC to 500kHz—using an external digital clock
s
3-wire SPI compatible serial interface with double
buffered latch for programming the frequency
s
On board smoothing filter
s
Clock output available at frequency of clock in
s
Single 5V power supply operation
OUT
S ENABLE
S CLK
S DATA IN
4
2
3
6
8-BIT
DAC
GAIN
CONTROL &
SMOOTHING
FILTER
REFERENCE
PHASE
ACCUMULATOR
512 POINT
SINE LOOK-UP
TABLE
8
16
16-BIT DATA LATCH
16-BIT SHIFT REGISTER
CRYSTAL
OSCILLATOR
÷2
CLK IN
7
CLK OUT
1
GND
5
VCC
8
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