參數(shù)資料
型號(hào)： HSP45106
廠商： Intersil Corporation
英文描述： 16-Bit Numerically Controlled Oscillator
中文描述： 16位數(shù)控振蕩器
文件頁(yè)數(shù)： 7/14頁(yè)
文件大?。?/td> 379K
代理商： HSP45106
7
The timing for loading the Center Frequency Register (MSB
and LSB) and data being output on COS(15:0) and SIN(15:0)
is shown in Figure 3. This timing is independent of whether
the output data represents the phase accumulator data or the
SIN/COS Generator output.
When it is desired for the output of the NCO16 to be switched
back and forth between sine/cosine and the phase
accumulator, a circuit such as the one shown in Figure 4 could
be used. In this case, the sinusoidal output cannot be
interrupted, so the phase accumulator must be read out
between samples. This is possible due to the fact that the
TEST signal is simply the control line for a multiplexer on the
output of the SIN/COS Generator, but carries with it a
limitation on the maximum possible clock rate. Since TEST is
a synchronous input, the output of the NCO16 must be either
driven by the SIN/COS Generator or the phase accumulator
for an entire clock cycle. Therefore, the part must be driven at
twice the desired speed at all times so there is a clock cycle
available for TEST, when necessary. Note that the processor
must be driven from the same clock that generates the NCO
clock in order to maintain synchronous operation.
MOD0(2:0)
PMSEL
C(15:0)
WR
A(2:0)
CS
ENPOREG
ENCFREG
OES
OEC
ENOFREG
ENPHAC
ENTIGEG
INHOFR
INITPAC
PACI
INITTAC
TEST
PAR/SER
BINFMT
CLK
SIN0-15
COS(15:0)
HSP45106
DECODE
MICROPROCESSOR
DATA
WE
ADDRESS
GND
V
CC
GND
V
CC
GND
V
V
CC
V
CC
V
CC
V
CC
V
CC
START
LOGIC
OSCILLATOR
FIGURE 2. CIRCUIT FOR READING PHASE ACCUMULATOR
OF NCO16
(15:0)
WR
A0-2
ENCFREG,
ENOFREG
COS0-15,
SIN0-15
TRANSFER DATA
TO CENTER OR OFFSET
FREQUENCY REGISTER
NEW
FREQUENCY
DATA
CS
FIGURE 3. NCO16 PIPELINE DELAY
CLK
WRITE
MS INPUT
REGISTER
WRITE
LS INPUT
REGISTER
C0-15
MOD0-2
PMSEL
C0-15
WR
A0-2
CS
ENPOREG
ENCFREG
OES
OEC
ENOFREG
ENPHAC
ENTIGEG
INHOFR
INITPAC
PACI
INITTAC
TEST
PAR/SER
BINFMT
CLK
SIN0-15
COS0-15
HSP45106
DECODE
MICROPROCESSOR
DATA
WE
ADDRESS
GND
V
CC
GND
V
CC
GND
V
CC
V
CC
V
CC
V
CC
V
CC
OSCILLATOR
÷
2
REGISTER
DAC
DAC
>
FIGURE 4. CIRCUIT FOR READING PHASE ACCUMULATOR
OF NCO16 WHILE GENERATING SINUSOID
START
LOGIC
HSP45106
相關(guān)PDF資料
PDF描述
HSP45106883 16-Bit Numerically Controlled Oscillator
HSP45106JC-25 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT06; Number of Contacts:21; Connector Shell Size:22; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight
HSP45106JC-33 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT06; No. of Contacts:21; Connector Shell Size:22; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HSP45106/883 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:16-Bit Numerically Controlled Oscillator
HSP45106_04 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:16-Bit Numerically Controlled Oscillator
HSP45106883 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:16-Bit Numerically Controlled Oscillator
HSP45106GC-33 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:16-Bit Numerically Controlled Oscillator
HSP45106GM-25/883 制造商:Rochester Electronics LLC 功能描述:- Bulk
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