CS5523-AS(2000) 데이터 시트보기 (PDF) - Cirrus Logic

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CS5523-AS
(Rev.:2000)

16-Bit or 24-Bit, 2/4/8-Channel ADCs with PGIA

Cirrus Logic 

CS5521/22/23/24/28

2.5.1 Conversion Data FIFO Descriptions

CS5521/23 (EACH 16-BIT CONVERSIONS)

D23

MSB

D11

3

D22 D21 D20 D19 D18 D17 D16 D15 D14 D13 D12

14 13 12 11 10

9

8

7

6

5

4

D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

2

1 LSB 1

1

1

0 CI1 CI0 OD OF

CS5522/24/28 (EACH 24-BIT CONVERSION LEVELS)

D23

MSB

D11

11

D22 D21 D20 D19 D18 D17 D16 D15 D14 D13 D12

22 21 20 19 18 17 16 15 14 13 12

D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

10 9

8

7

6

5

4

3

2

1 LSB

Conversion Data Bits [23:8 for CS5521/23; 23:0 for CS5522/24/28]

These bits depict the latest output conversion.

OD (Oscillation detect Flag Bit)

0

Bit is clear when oscillatory condition in modulator does not exist (bit is read only).

1

Bit is set any time an oscillatory condition is detected in the modulator. This does not occur under normal

operation conditions, but may occur when the input is extremely overranged. The OD flag will be cleared

to logic 0 when the modulator becomes stable.

OF (Over-range Flag Bit)

0

Bit is clear when over-range condition has not occurred (bit is read only).

1

Bit is set when input signal is more positive than the positive full scale, more negative than zero (unipolar

mode) or when the input is more negative than the negative full scale (bipolar mode).

CI (Channel Indicator Bits) [1:0]

These bits indicate which physical input channel was converted.

00

Physical Channel 1 (CS5521/23 only)

01

Physical Channel 2 (CS5521/23 only)

10

Physical Channel 3 (CS5523 only)

11

Physical Channel 4 (CS5523 only)

DS317F2

41

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