Knowledge (XXG)

Spurious-free dynamic range

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of the receiver or the system. The difference between this value and the input level which will produce distortion products equal to the minimum detectable signal referred to the input of the system is the SFDR of the system. However, this procedure is mainly reliable for
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systems where output spurious signals are nonlinear function of input power, more precise measurement is required to take into account this non-linearity in power.
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MT-003: Understand SINAD, ENOB, SNR, THD, THD + N, and SFDR so You Don't Get Lost in the Noise Floor
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In case of a radio receiver application, the definition is slightly different. The reference is the
282: 85:). Depending on the test condition, SFDR is observed within a pre-defined frequency window or from 58: 307: 90: 369: 54: 46: 241: 210: 17: 299: 86: 74: 412: 100:
level at the input of a receiver, which can be calculated through a knowledge of the
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is the noise floor of the component, expressed in dB or dBm.
114: 373: 198:{\displaystyle DR_{f}(dB)={\tfrac {2}{3}}(P_{3}-N_{0})} 155: 244: 213: 125: 42:(ADCs and DACs, respectively) and radio receivers. 257: 226: 197: 69:”) at its output. SFDR is usually measured in 393: 8: 304:Microwave and RF Design of Wireless Systems 400: 386: 249: 243: 218: 212: 186: 173: 154: 133: 124: 274: 368:This electronics-related article is a 7: 358: 356: 61:component (which is referred to as “ 45:SFDR is defined as the ratio of the 372:. You can help Knowledge (XXG) by 25: 360: 349:(Signal-to-Noise-And-Distortion) 81:(i.e. with respect to the ADC's 93:of the converter (ADC or DAC). 192: 166: 148: 139: 1: 306:. Wiley. pp. 103, 104. 40:digital-to-analog converters 343:(Total Harmonic Distortion) 336:Digital-to-analog converter 331:Analog-to-digital converter 236:third-order intercept point 28:Spurious-free dynamic range 18:Spurious-Free Dynamic Range 440: 355: 73:(i.e. with respect to the 419:Digital signal processing 98:minimum detectable signal 289:, Retrieved 26 July 2011 259: 228: 199: 260: 258:{\displaystyle N_{0}} 229: 227:{\displaystyle P_{3}} 200: 104:and the input signal 242: 211: 123: 59:harmonic distortion 255: 224: 195: 164: 424:Electronics stubs 381: 380: 163: 91:Nyquist frequency 77:amplitude) or in 36:analog-to-digital 16:(Redirected from 431: 402: 395: 388: 364: 357: 318: 317: 296: 290: 279: 264: 262: 261: 256: 254: 253: 233: 231: 230: 225: 223: 222: 204: 202: 201: 196: 191: 190: 178: 177: 165: 156: 138: 137: 83:full-scale range 21: 439: 438: 434: 433: 432: 430: 429: 428: 409: 408: 407: 406: 353: 327: 322: 321: 314: 300:Pozar, David M. 298: 297: 293: 280: 276: 271: 245: 240: 239: 214: 209: 208: 182: 169: 129: 121: 120: 23: 22: 15: 12: 11: 5: 437: 435: 427: 426: 421: 411: 410: 405: 404: 397: 390: 382: 379: 378: 365: 351: 350: 344: 338: 333: 326: 323: 320: 319: 312: 291: 287:Analog Devices 273: 272: 270: 267: 252: 248: 221: 217: 194: 189: 185: 181: 176: 172: 168: 162: 159: 153: 150: 147: 144: 141: 136: 132: 128: 75:carrier signal 24: 14: 13: 10: 9: 6: 4: 3: 2: 436: 425: 422: 420: 417: 416: 414: 403: 398: 396: 391: 389: 384: 383: 377: 375: 371: 366: 363: 359: 354: 348: 345: 342: 339: 337: 334: 332: 329: 328: 324: 315: 313:9780471322825 309: 305: 301: 295: 292: 288: 284: 281:Walt Kester, 278: 275: 268: 266: 250: 246: 237: 219: 215: 205: 187: 183: 179: 174: 170: 160: 157: 151: 145: 142: 134: 130: 126: 118: 116: 112: 107: 103: 99: 94: 92: 88: 84: 80: 76: 72: 68: 64: 60: 56: 52: 49:value of the 48: 43: 41: 37: 33: 29: 19: 374:expanding it 367: 352: 303: 294: 286: 277: 206: 119: 102:noise figure 95: 66: 62: 51:carrier wave 44: 31: 27: 26: 413:Categories 269:References 180:− 106:bandwidth 325:See also 302:(2001). 65:” or a “ 63:spurious 234:is the 310:  207:Where 89:up to 347:SINAD 113:. In 55:noise 370:stub 308:ISBN 238:and 111:ADCs 79:dBFS 67:spur 38:and 32:SFDR 341:THD 71:dBc 57:or 47:RMS 415:: 285:, 115:RF 87:DC 401:e 394:t 387:v 376:. 316:. 251:0 247:N 220:3 216:P 193:) 188:0 184:N 175:3 171:P 167:( 161:3 158:2 152:= 149:) 146:B 143:d 140:( 135:f 131:R 127:D 30:( 20:)

Index

Spurious-Free Dynamic Range
analog-to-digital
digital-to-analog converters
RMS
carrier wave
noise
harmonic distortion
dBc
carrier signal
dBFS
full-scale range
DC
Nyquist frequency
minimum detectable signal
noise figure
bandwidth
ADCs
RF
third-order intercept point
MT-003: Understand SINAD, ENOB, SNR, THD, THD + N, and SFDR so You Don't Get Lost in the Noise Floor
Pozar, David M.
ISBN
9780471322825
Analog-to-digital converter
Digital-to-analog converter
THD
SINAD
Stub icon
stub
expanding it

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