AD6674 datasheet(51/91 Pages) AD

51 / 91 page

Data Sheet

AD6674

Chip

Application

Layer

Chip

Decimation

Ratio

DDC Input

Type

DDC

Output

Type

Bandwidth

Per DDC1

No. of Virtual

Converters

Required

Two DDCs

Real

Complex

19.25% × fS

0x200 = 0x02 (two DDCs; I/Q selected)

0x201 = 0x02 (chip decimate by 4)

0x310, 0x330 = 0x40 (real mixer; 6 dB gain;

variable IF; complex output; HB2 + HB1 filters)

0x311 = 0x00 (DDC 0 I input = ADC Channel A;

DDC 0 Q input = ADC Channel A)

0x331 = 0x05 (DDC 1 I input = ADC Channel B;

DDC 1 Q input = ADC Channel B)

0x314, 0x315, 0x320, 0x321 = FTW and POW set

as required by application for DDC 0

0x334, 0x335, 0x340, 0x341 = FTW and POW set

as required by application for DDC 1

Two DDCs

Real

4.81% × fS

0x200 = 0x22 (two DDCs; I only selected)

0x201 = 0x03 (chip decimate by 8)

0x310, 0x330 = 0x4A (real mixer; 6 dB gain;

variable IF; real output; HB4 + HB3 + HB2 + HB1

filters)

0x311 = 0x00 (DDC 0 I input = ADC Channel A;

DDC 0 Q input = ADC Channel A)

0x331 = 0x05 (DDC 1 I input = ADC Channel B;

DDC 1 Q input = ADC Channel B)

0x314, 0x315, 0x320, 0x321 = FTW and POW set

as required by application for DDC 0

0x334, 0x335, 0x340, 0x341 = FTW and POW set

as required by application for DDC 1

Four DDCs

Real

Complex

9.63% × fS

0x200 = 0x03 (four DDCs; I/Q selected)

0x201 = 0x03 (chip decimate by 8)

0x310, 0x330, 0x350, 0x370 = 0x41 (real mixer;

6 dB gain; variable IF; complex output; HB3 +

HB2 + HB1 filters)

0x311 = 0x00 (DDC 0 I input = ADC Channel A;

DDC 0 Q input = ADC Channel A)

0x331 = 0x00 (DDC 1 I input = ADC Channel A;

DDC 1 Q input = ADC Channel A)

0x351 = 0x05 (DDC 2 I input = ADC Channel B;

DDC 2 Q input = ADC Channel B)

0x371 = 0x05 (DDC 3 I input = ADC Channel B;

DDC 3 Q input = ADC Channel B)

0x314, 0x315, 0x320, 0x321 = FTW and POW set

as required by application for DDC 0

0x334, 0x335, 0x340, 0x341 = FTW and POW set

as required by application for DDC 1

0x354, 0x355, 0x360, 0x361 = FTW and POW set

as required by application for DDC 2

0x374, 0x375, 0x380, 0x381 = FTW and POW set

as required by application for DDC 3

Rev. B | Page 51 of 91

AD6674 Datasheet(PDF) 51 Page - Analog Devices

AD6674 Datasheet(HTML) 51 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91

Datasheet Download

Link URL