參數(shù)資料
型號(hào)： HSP50215
廠商： Intersil Corporation
英文描述： Digital UpConverter(數(shù)字上變頻器)
中文描述： 數(shù)字上變頻器（數(shù)字上變頻器）
文件頁(yè)數(shù)： 1/21頁(yè)
文件大?。?/td> 162K
代理商： HSP50215
3-1
TM
File Number
4346.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil and Design is a trademark of Intersil Corporation.
Copyright
Intersil Corporation 2000
HSP50215
Digital UpConverter
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.
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.
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.
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.
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.
Features
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
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
μ
Processor Interface for Configuration and User
Data Input
Applications
Single or Multiple Channel Digital Software Radio
Transmitters (Wide-Band or Narrow-Band)
Base Station Transceivers
Operates with HSP50214 in Software Radio Solutions
Compatible with the HI5741 D/A Converter
HSP50215EVAL Evaluation Board Available
Block Diagram
Ordering Information
PART
NUMBER
TEMP
RANGE (
o
C)
PACKAGE
PKG. NO
HSP50215VC
0 to 70
100 Ld MQFP
Q100.14x20
HSP50215VI
-40 to 85
100 Ld MQFP
Q100.14x20
1
F
FM
MOD
GAIN
CTRL
NCO
SAMPCLK
CONTROL
C(15:0)
A(9:0)
FIFORDY
RST
WR
RD
CE
M
MUX
S
M
I FM
Q FM
IFIFO
QFIFO
REFCLK
SYNCIN
I
F
S
C
+
CAS(15:0)
CASZ
O
OE
OFM
OUT(15:0)
=
μ
P CONTROL SIGNALS
IIN(15:0)
QIN(15:0)
CF(31:0)
IIN(15:0)
CF(31:0)
QIN(15:0)
SF(29:0)
+
L
SYNCOUT
NCO
Data Sheet
January 1999
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