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ADRF6701ACPZ-R7 датащи(PDF) 23 Page - Analog Devices |
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ADRF6701ACPZ-R7 датащи(HTML) 23 Page - Analog Devices |
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23 / 36 page ![]() Data Sheet ADRF6701 Rev. 0 | Page 23 of 36 REGISTER 3—Σ-Δ MODULATOR DITHER CONTROL (DEFAULT: 0x10000B) With Register 3, Bits[2:0] set to 011, the on-chip Σ-Δ modulator dither control register is programmed as shown in Figure 44. The recommended and default setting for dither enable is enabled (1). The default value of the dither magnitude (15) should be set to a recommended value of 1. The dither restart value can be programmed from 0 to 217 − 1, though a value of 1 is typically recommended. DITHER ENABLE DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 DITH1 DITH0 DEN DV16 DV15 DV14 DV13 DV12 DV11 DV10 DV9 DV8 DV7 DV6 DV5 DV4 DV3 DV2 DV1 DV0 C3(0) C2(1) C1(1) DITH1 DITH0 00 01 10 11 DEN 0 1 DITHER MAGNITUDE DITHER RESTART VALUE CONTROL BITS DITHER MAGNITUDE 15 (DEFAULT) 7 3 1 (RECOMMENDED) DITHER ENABLE DISABLE ENABLE (DEFAULT, RECOMMENDED) DV16 DV15 DV14 DV13 DV12 DV11 DV10 DV9 DV8 DV7 DV6 DV5 DV4 DV3 DV2 DV1 DV0 00 0 0 0 0 00 0 0 0 0 0 0 0 0 1 ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 11 1 1 1 1 11 1 1 1 1 1 1 1 1 DV2 0 ... ... 11 0x00001 (DEFAULT) ... ... 0x1FFFF DITHER RESTART VALUE Figure 44. Register 3—Σ-Δ Modulator Dither Control Register Map |
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