ML2035 Microsemi Corporation, ML2035 Datasheet

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ML2035

Manufacturer Part Number
ML2035
Description
Manufacturer
Microsemi Corporation
Datasheet

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GENERAL DESCRIPTION
The ML2035 is a monolithic sinewave generator whose
output is programmable from DC to 25kHz. No external
components are required. The frequency of the sinewave
output is derived from either an external crystal or clock
input, providing a stable and accurate frequency
reference. The frequency is programmed by a 16-bit serial
data word. The ML2035 has a V
The ML2035 is intended for telecommunications and
modem applications that need low cost and accurate
generation of precise test tones, call progress tones, and
signaling tones.
BLOCK DIAGRAM
Serial Input Programmable Sine Wave Generator
8
4
2
3
CLK IN
LATI
SCK
SID
OUT
OSCILLATOR
CRYSTAL
amplitude of ±V
4
16-BIT SHIFT REGISTER
16-BIT DATA LATCH
ACCUMULATOR
SINE LOOK-UP
& 512 POINT
PHASE
TABLE
8-BIT
DAC
CC
8
/2.
16
16
FEATURES
SMOOTHING
Programmable output frequency - DC to 25kHz
Low gain error and total harmonic distortion
3-wire SPI compatible serial microprocessor interface
with double buffered data latch
Fully integrated solution - no external components
required
Frequency resolution of 1.5Hz (±0.75Hz) with a
12MHz clock input
Onboard 3 to 12MHz crystal oscillator
Synchronous or asynchronous data loading capability
Compatible with ML2031 and ML2032 tone detectors
and ML2004 logarithmic gain/attenuator
FILTER
5k
DETECT
+
-
ZERO
5k
V OUT
GND
V CC
V SS
6
5
7
1
ML2035
February 1997
1

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ML2035 Summary of contents

Page 1

... Serial Input Programmable Sine Wave Generator GENERAL DESCRIPTION The ML2035 is a monolithic sinewave generator whose output is programmable from DC to 25kHz. No external components are required. The frequency of the sinewave output is derived from either an external crystal or clock input, providing a stable and accurate frequency reference ...

Page 2

... SID Serial input data which programs the frequency of V OUT 4 LATI Digital input which latches serial data into the internal data latch on falling edges. 2 ML2035 8-Pin PDIP (P08 CLK IN SCK 2 7 GND SID 3 6 ...

Page 3

... IH I Input Low Current IL I Input High Current IH Lead Temperature (Soldering, 10 sec) ...................... 260ºC Thermal Resistance ( OPERATING CONDITIONS 6.5V -6.5V Temperature Range - 0. 0.3V ML2035CP ................................................. 0ºC to 70º 0.3V ML2035IP ............................................... -40ºC to 85º Range ................................................... 4. Range ................................................. -4.5V to -5. -4.5V to -5.5V, CLK IN = 12.352MHz CONDITIONS 20Hz to 5kHz 5kHz to 25kHz 200Hz to 3 ...

Page 4

... ML2035 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER LOGIC (Continued) V Output Low Voltage OL V Output High Voltage OH t Serial Clock On/Off Period SCK t SID Data Setup Time DS t SID Data Hold Time DH t LATI Pulse Width LPW t LATI Hold Time LH t LATI Setup Time ...

Page 5

... If a crystal is used, it must be placed between CLK IN and GND of the ML2035. An on-chip crystal oscillator will then generate the internal clock. No other external (2) capacitors or components are required. The crystal should be a parallel-resonant type with a frequency between 3MHz to 12 ...

Page 6

... ML2035 BINARY PHASE ACCUMULATOR CRYSTAL CLK IN OSCILLATOR Figure 3. Detailed Block Diagram of the ML2035. 6 16-BIT SID SHIFT REGISTER (16 BITS) • • • 16-BIT LATI DATA LATCH (16 BITS) • • • • • • – 21-BIT ADDER SUM (21 BITS) • ...

Page 7

... SCK and LATI. POWER DOWN MODE The power down mode of the ML2035 can be selected by entering all zeros in the shift register and applying a logic “1” to LATI and holding it high. A zero data detect circuit detects when all bits in the shift register are zeros ...

Page 8

... TONE DETECTOR ML2003 GENERATOR ML2004 ML2008 ML2009 ATTENUATION /GAIN Figure 6. 4-Wire Termination Equipment. 5V ML2035 V CC 0.1µF GND V OUT 0.1µ 25kHz SINEWAVE –5V Figure 7. Sine Wave Ratiometric to ±V ML2020 ML2021 LINE LOOPBACK RELAY ML2035 TONE /2. CC ...

Page 9

... BSC) 0.015 MIN (0.38 MIN) 0.016 - 0.020 0º - 15º (0.40 - 0.51) SEATING PLANE TEMPERATURE RANGE 0ºC to 70ºC -40ºC to 85ºC ML2035 0.008 - 0.012 (0.20 - 0.31) PACKAGE 8-Pin PDIP (P08) 8-Pin PDIP (P08) 2092 Concourse Drive San Jose, CA 95131 Tel: (408) 433-5200 Fax: (408) 432-0295 DS2035-01 ...

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