AK5554VN_16 datasheet(16/68 Pages) AKM

Il numero della parte	AK5554VN

Spiegazioni elettronici	4-Channel Differential 32-bit ADC

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Produttore elettronici	AKM [Asahi Kasei Microsystems]

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16 / 68 page

[AK5554]

015099864-E-00

2016/03

- 16 -

■ ADC Filter Characteristics (fs= 384 kHz)

(Ta=

40 - +105 C; AVDD= 4.5-5.5 V, TVDD=1.7-1.98 V (LDOE pin=“L”) or 3.0-3.6 V (LDOE pin=“H”),

VDD18= 1.7-1.98 V (LDOE pin=

“L”))

Parameter

Symbol

Min.

Typ.

Max.

Unit

Digital Filter (Decimation LPF) (Figure 15)

(SD pin=

“X”, SLOW pin=“X”) * It does not depend on the SD pin and SLOW pin.

Frequency

Response

(Note 13)

0.1 dB

1.0 dB

3.0 dB

6.0 dB

FR

-

81.75

114

137.63

157.2

-

kHz

Stopband (Note 13)

SB

277.4

-

kHz

Stopband Attenuation

SA

85

-

dB

Group Delay Distortion 0 - 40.0 kHz

GD

-

0

-

1/fs

Group Delay (Note 14)

GD

-

7

-

1/fs

Note 13. The passband and stopband frequencies scale with fs.

Note 14. The calculated delay time induced by digital filtering. This time is from the input of an analog

signal to the L channel MSB output timing of the SDTO. It may have an error of +1[1/fs] at

maximum when outputting data via audio interfaces.

Figure 15. Frequency Response (fs = 384 kHz)

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