CS5378-ISZ datasheet(10/86 Pages) CIRRUS

部件名	CS5378-ISZ

功能描述	Low-power Single-channel Decimation Filter

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制造商	CIRRUS [Cirrus Logic]

网页	http://www.cirrus.com

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10 / 86 page

CS5378

DS639F1

10

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

类似零件编号 - CS5378-ISZ

制造商	部件名	数据表	功能描述
Cirrus Logic	CS5378-ISZ	1Mb / 88P	Low-power Single-channel Decimation Filter

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类似说明 - CS5378-ISZ

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