Datasheet > L2340

L2340

更新时间： 2024-01-31 06:07:04

品牌	Logo	应用领域
逻辑 - LOGIC		/
页数	文件大小	规格书
11页	270K
描述
Digital Synthesizer

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数据手册

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L2340 数据手册

L2340

DEVICES INCORPORATED

Digital Synthesizer

L2340

Digital Synthesizer

DEVICES INCORPORATED

FEATURES

DESCRIPTION

The L2340 is a digital synthesizer that selects the numeric format. A valid

❑ Digital Waveform Synthesis at

50 MHz

performs waveform synthesis, modu-

lation, and demodulation.

transformed result is seen at the

output after 22 clock cycles and will

continue upon every clock cycle

thereafter.

❑ 24-Bit Polar Phase Angle Accuracy

❑ User-selectableWaveformSynthesis,

Frequency Modulation, or Phase

Modulation.

The L2340 automatically generates

quadrature matched pairs of 16-bit

sine and cosine waves in DAC-

15-bit amplitude and 32-bit phase data

❑ Amplitude Input for Amplitude

compatible 16-bit offset binary format are input into the L2340 to produce an

with15-bit amplitude and 32-bit phase output of 16-bit rectangular data. The

Modulation and Gain Adjustment.

inputs.

user may select the data format to

either 16-bit offset binary or 15-bit

unsigned magnitude format. High

accuracy phase increment values with

minimal accumulation error is accom-

plished by use of a 32-bit phase

accumulator.

❑ Replaces TRW/Raytheon/Fairchild

TMC2340A

Output waveforms can be phase or

frequency modulated. Digital output

frequencies are restricted to the

Nyquist limit.

❑ 120-pin PQFP

Functional Description

The phase accumulator structure

supports frequency or phase modula-

tion and is selected by ENP1-0 and

accumulator controls FM and PM.

The L2340 converts Polar (Phase and

Magnitude) data into Rectangular

(Cartesian) coordinates. The user

L2340 BLOCK DIAGRAM

ENA

AM14-0

OEI

ENP1-0

15-0

PH31-0

Digital

Synthesizer

OEQ

15-0

OBIQ

CLK

Special Arithmetic Functions

08/16/2000–LDS.2340-E

12 3 4 5 6 7...11

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与L2340相关器件

型号	品牌	获取价格	描述	数据表
L234-0.25M	CONNOR-WINFIELD	获取价格	LVDS Output Clock Oscillator, 25MHz Nom, ROHS COMPLIANT, HERMETIC SEALED, CERAMIC PACKAGE-
L234-019.44M	CONNOR-WINFIELD	获取价格	LVDS Output Clock Oscillator, 19.44MHz Min, 312.5MHz Max, 19.44MHz Nom, ROHS COMPLIANT, HE
L234-025.0M	CONNOR-WINFIELD	获取价格	LVDS Output Clock Oscillator, 25MHz Nom, ROHS COMPLIANT, HERMETIC SEALED, CERAMIC PACKAGE-
L234-044.736M	CONNOR-WINFIELD	获取价格	LVDS Output Clock Oscillator, 44.736MHz Nom, ROHS COMPLIANT, HERMETIC SEALED, CERAMIC PACK
L2340G	LOGIC	获取价格	Digital Synthesizer
L2340GC20	ETC	获取价格	Parallel-Input Frequency Synthesizer
L2340GC25	ETC	获取价格	Parallel-Input Frequency Synthesizer
L2340GC50	ETC	获取价格	Parallel-Input Frequency Synthesizer
L2340GM20	ETC	获取价格	Parallel-Input Frequency Synthesizer
L2340GM25	ETC	获取价格	Parallel-Input Frequency Synthesizer