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参数资料
| 型号： | STEL-1175+125/MC |
| 厂商： | INTEL CORP |
| 元件分类： | 数字信号处理外设 |
| 英文描述： | 8-BIT, DSP-NUM CONTROLLED OSCILLATOR, CQCC68 |
| 封装： | CERAMIC, LDCC-68 |
| 文件页数： | 7/14页 |
| 文件大小： | 253K |
| 代理商： | STEL-1175+125/MC |
STEL-1175+125
2
s
VERY HIGH CLOCK FREQUENCY
- 125 MHz MAXIMUM OVER FULL
MILITARYTEMPERATURERANGE
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
PRECISIONPHASEMODULATION
- 12-BITS, 0.09° RESOLUTION, CAN BE
USED FOR LINEAR PM OR PULSE-
SHAPEDPSK
s
SINE OR COSINE SIGNAL GENERATION
- 12-BIT OUTPUTS
s
HIGH SPECTRAL PURITY
ALL SPURS < -75 dBc
(AT DIGITAL OUTPUT)
s
MICROPROCESSORCOMPATIBLE
INPUTS
s
LOW POWER DISSIPATION
s
68 PIN PLCC PACKAGE
(COMMERCIAL TEMPERATURERANGE)
s
68 PIN CERAMIC LCC PACKAGE
(MILITARY TEMPERATURERANGE)
TYPICAL APPLICATIONS
s
FREQUENCYSYNTHESIZERS
s
PSKMODULATORS
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 0.5 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.
BLOCK DIAGRAM
PHLCK
PHLD
PHASE
MOD
CONTROL
PHSEL
FRLD
ADDRESS
SELECT
LOGIC
ADDR
CSEL
WRSTB
-PHASE
BUFFER
REGISTERS
DATA
8
FRSEL
CLOCK
SINE
MUX
32
-PHASE
REGISTER
32-BIT
PHASE
ACCUMU-
LATOR
32
PHASE
ALU
13
12
PSYNC
SIN/COS
LUT
PHASE
OUTPUT
REGISTER
12
PHASE
12
OUT
COUT
FSYNC
TCP 39074-12/17/98
4
12
CIN
ROUND
RESET
TO ALL REGISTERS
13
FEATURES
相关PDF资料 |
PDF描述 |
|---|---|
| STEL-1177/CF | 8-BIT, DSP-NUM CONTROLLED OSCILLATOR, CPGA84 |
| STG2000XC | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP208 |
| STK17C88-W45 | REAL TIME CLOCK, PDIP40 |
| STK17T88-R25I | REAL TIME CLOCK, PDSO48 |
| STK17T88-R45 | REAL TIME CLOCK, PDSO48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| STEL-1176/CM | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Numeric-Controlled Oscillator |
| STEL-1176/MC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Numeric-Controlled Oscillator |
| STEL-1177/CC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Numeric-Controlled Oscillator |
| STEL-1177/CF | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Numeric-Controlled Oscillator |
| STEL-1177/CM | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Numeric-Controlled Oscillator |
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