CS5376A datasheet(11/107 Pages) CIRRUS

tên linh kiện	CS5376A

Giải thích chi tiết về linh kiện	LOW POWER MULTI CHANNEL DECIMATION FILTER

PDF	107 Pages

Scroll/Zoom	100%

nhà sản xuất	CIRRUS [Cirrus Logic]

Trang chủ	http://www.cirrus.com

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11 / 107 page

CS5376A

Bits

23:20

19:16

15:12

11:8

7:4

3:0

Selection

0000

IIR2

IIR1

FIR2

FIR1

Figure 3. FIR and IIR Coefficient Set Selection Word

Bits 15:12

IIR2 Coefficients

0000

3 Hz @ 2000 SPS

0001

3 Hz @ 1000 SPS

0010

3 Hz @ 500 SPS

0011

3 Hz @ 333 SPS

0100

3 Hz @ 250 SPS

Bits 11:8

IIR1 Coefficients

0000

3 Hz @ 2000 SPS

0001

3 Hz @ 1000 SPS

0010

3 Hz @ 500 SPS

0011

3 Hz @ 333 SPS

0100

3 Hz @ 250 SPS

Bits 7:4

FIR2 Coefficients

0000

Linear Phase

0001

Minimum Phase

Bits 3:0

FIR1 Coefficients

0000

Linear Phase

0001

Minimum Phase

Test Bit Stream Characteristic Equation:

(Signal Freq) * (# TBS Data) * (Interpolation + 1) = Output Rate

Example: (31.25 Hz) * (1024) * (0x07 + 1) = 256 kHz

Signal

Frequency

(TBSDATA)

Output

Rate

(TBSCLK)

Output Rate

Selection

(RATE)

Interpolation

Selection

(INTP)

10.00 Hz

256 kHz

0x4

0x18

10.00 Hz

512 kHz

0x5

0x31

25.00 Hz

256 kHz

0x4

0x09

25.00 Hz

512 kHz

0x5

0x13

31.25 Hz

256 kHz

0x4

0x07

31.25 Hz

512 kHz

0x5

0x0F

50.00 Hz

256 kHz

0x4

0x04

50.00 Hz

512 kHz

0x5

0x09

125.00 Hz

256 kHz

0x4

0x01

125.00 Hz

512 kHz

0x5

0x03

Table 2. TBS Configurations Using On-Chip Data

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