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STEL-1175 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 32-Bit Resolution CMOS Phase Modulated Numerically Controlled Oscillator - Intel

भाग संख्या STEL-1175
समारोह 32-Bit Resolution CMOS Phase Modulated Numerically Controlled Oscillator
मैन्युफैक्चरर्स Intel 
लोगो Intel लोगो 
पूर्व दर्शन
1 Page
		
<?=STEL-1175?> डेटा पत्रक पीडीएफ

STEL-1175 pdf
FEATURES
s VERY HIGH CLOCK FREQUENCY
- 125 MHz MAXIMUM OVER FULL
MILITARY TEMPERATURE RANGE
s HIGH FREQUENCY RESOLUTION
- 32-BITS, 30 milli-Hz @ 125 MHz
s WIDE OUTPUT BANDWIDTH
- 0 TO 50 MHz @ 125 MHz CLOCK
s SHORT CLOCK TO OUTPUT DELAY FOR
DIRECT CLOCK CONNECT TO 1175 AND
DAC
s PRECISION PHASE MODULATION
www.DataSheet4U.c-om12-BITS, 0.09° RESOLUTION, CAN BE
USED FOR LINEAR PM OR PULSE-
SHAPED PSK
s SINE OR COSINE SIGNAL GENERATION
- 12-BIT OUTPUTS
s HIGH SPECTRAL PURITY
ALL SPURS < -75 dBc
(AT DIGITAL OUTPUT)
s MICROPROCESSOR COMPATIBLE
INPUTS
s LOW POWER DISSIPATION
s 68 PIN PLCC PACKAGE
(COMMERCIAL TEMPERATURE RANGE)
s 68 PIN CERAMIC LCC PACKAGE
(MILITARY TEMPERATURE RANGE)
BLOCK DIAGRAM
TYPICAL APPLICATIONS
s FREQUENCY SYNTHESIZERS
s PSK MODULATORS
s DIGITAL SIGNAL PROCESSORS
s FAST HOPPED FREQUENCY SOURCES
FUNCTIONAL DESCRIPTION
The STEL-1175 Modulated Numerically Controlled
Oscillator (MNCO) uses digital techniques to provide a
cost-effective solution for low noise signal sources. The
device can operate at clock frequency up to 125 MHz and
provides high frequency resolution and high spectral purity
of outputs up to 50 MHz. The STEL-1175 also features
phase modulation at rates up to 25% of the clock
frequency. The 12-bit output can be selected to be a sine
or cosine function, so that two STEL-1175 NCOs can be
used to generate quadrature signals with independent
phase modulation. Two independent frequency control
registers are provided, allowing high speed frequency
hopping or binary FSK at rates to 25% of the clock
frequency. The device combines low power 0.5µ CMOS
technology with a unique architectural design resulting in
a power efficient, high-speed sinusoidal waveform
generator able to achieve fine tuning resolution and high
spectral purity at clock frequencies up to 125 MHz. The
NCO is designed to provide a simple interface to an 8-bit
microprocessor bus.
PHLCK
PHLD
FRLD
PHSEL
ADDR 4
CSEL
WRSTB
ADDRESS
SELECT
LOGIC
DATA
8
PHASE
MOD
CONTROL
32
-PHASE
BUFFER
REGISTERS 32
MUX
PHASE
OUTPUT
12 PHASE
REGISTER
12
12 PSYNC
-PHASE 32
REGISTER
32
32-BIT
PHASE
ACCUMU-
LATOR
13 PHASE
ALU
13
SIN/COS 12
OUT
LUT
FRSEL
CIN
CLOCK
SINE
ROUND
RESET
TO ALL REGISTERS
COUT
FSYNC
TCP 39074-12/17/98
STEL-1175+125
2

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डाउनलोड[ STEL-1175 Datasheet.PDF ]


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भाग संख्याविवरणविनिर्माण
STEL-117532-Bit Resolution CMOS Phase Modulated Numerically Controlled OscillatorIntel
Intel


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