Datasheet > HSP50215VI

HSP50215VI

更新时间： 2024-09-30 22:35:19

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
21页	159K
描述
Digital UpConverter

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HSP50215VI 数据手册

HSP50215

Data Sheet

January 1999

File Number 4346.4

Digital UpConverter

Features

The HSP50215 Digital UpConverter (DUC) is a QASK/FM

modulator/FDM upconverter designed for high dynamic range

applications such as cellular basestations. The DUC combines

shaping and interpolation filters, a complex modulator, and

Timing and Carrier NCO’s into a single package. Each DUC

can create a single FDM channel. Multiple DUC’s can be

cascaded digitally for multi-channel applications.

• Output Sample Rates Up to 52 MSPS (48 MSPS

Industrial); Input Data Rates Up to 3.25 MSPS

• I/Q Vector, FM, and Shaped FM Modulation Formats

• 32-Bit Programmable Carrier NCO; 30-Bit Programmable

Symbol Timing NCO

• Programmable I and Q, 256 Tap, Shaping FIR Filters with

Interpolation by 4, 8 or 16

The HSP50215 supports both vector and FM modulation. In

vector modulation mode, the DUC accepts 16-bit I and Q

samples to generate virtually any quadrature AM or PM

modulation format. The DUC also has two FM modulation

modes. In the FM with pulse shaping mode, the 16-bit

frequency samples are pulse shaped/bandlimited prior to FM

modulation. No bandlimiting filter follows the FM modulator.

This FM mode is useful for GMSK type modulation formats. In

the FM with bandlimiting filter mode, the 16-bit frequency

samples directly drive the FM modulator. The FM modulator

output is filtered to limit the spectral occupancy. This FM mode

is useful for analog FM or FSK modulation formats.

• Interpolation Filter Up Samples Shaping Filter Output to

Output Sample Rate Under NCO Control

• Processing Capable of >90dB SFDR

• Cascade Input for Multiple Channel Transmissions

• 16-Bit µProcessor Interface for Conﬁguration and User

Data Input

Applications

• Single or Multiple Channel Digital Software Radio

Transmitters (Wide-Band or Narrow-Band)

The DUC includes an NCO driven interpolation ﬁlter, which

allows the input and output sample rate to have a non-

integer or variable relationship. This re-sampling feature

simpliﬁes cascading modulators with sample rates that do

not have harmonic or integer frequency relationships.

• Base Station Transceivers

• Operates with HSP50214 in Software Radio Solutions

• Compatible with the HI5741 D/A Converter

• HSP50215EVAL Evaluation Board Available

The DUC offers digital output spectral purity that exceeds

85dB at the maximum output sample rate of 52 MSPS, for

input sample rates as high as 300 KSPS.

Ordering Information

PART

NUMBER

TEMP

RANGE ( C)

A 16-bit microprocessor compatible interface is used to load

configuration and baseband data. A programmable FIFO depth

interrupt simplifies the interface to the I and Q input FIFOs.

PACKAGE

PKG. NO

HSP50215VC

HSP50215VI

0 to 70

100 Ld MQFP Q100 .14x20

s100 Ld MQFP Q100 .14x20

-40 to 85

Block Diagram

† = µP CONTROL SIGNALS

CAS(15:0)

CASZ

IFIFO

IIN(15:0) †

GAIN

CTRL

OUT(15:0)

QFIFO

QIN(15:0) †

MUX

REFCLK

SYNCIN

MOD

OFM

I FM

Q FM

NCO

RST

NCO

QIN(15:0) †

IIN(15:0) †

CF(31:0) †

SYNCOUT

CF(31:0) †

SF(29:0) †

CONTROL

C(15:0)

FIFORDY

A(9:0)

SAMPCLK

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

3-422

12 3 4 5 6 7...21

中文翻译

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