ASAHI KASEI

[AK4346]

MS0531-E-00

2006/07

- 6 -

SHARP ROLL-OFF FILTER CHARACTERISTICS

(Ta = 25

°C; AVDD, DVDD = 2.7 ∼ 3.6V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)

Parameter

Symbol

Min

Typ

Max

Units

Digital filter

Passband

±0.05dB

(Note 10)

-6.0dB

PB

0

-

22.05

20.0

-

kHz

kHz

Stopband

(Note 10)

SB

24.1

kHz

Passband Ripple

PR

± 0.02

dB

Stopband Attenuation

SA

54

dB

Group Delay

(Note 11)

GD

-

19.3

-

1/fs

Digital Filter + SCF

Frequency Response

20.0kHz

40.0kHz

80.0kHz

Fs=44.1kHz

Fs=96kHz

Fs=192kHz

FR

FR

FR

-

-

-

+ 0.06/-0.10

+ 0.06/-0.13

+ 0.06/-0.51

-

-

-

dB

dB

dB

Note 10. The passband and stopband frequencies scale with fs(system sampling rate). For example, PB=0.4535×fs

(@

±0.05dB), SB=0.546×fs.

Note 11. Calculated delay time caused by the digital filter. This time is measured from when the serial data of both

channels is in the input register to the output of the analog signal.

SLOW ROLL-OFF FILTER CHARACTERISTICS

(Ta = 25

°C; AVDD, DVDD = 2.7~3.6V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)

Parameter

Symbol

Min

Typ

Max

Units

Digital Filter

Passband

±0.04dB

(Note 12)

-3.0dB

PB

0

-

18.2

8.1

-

kHz

kHz

Stopband

(Note 12)

SB

39.2

kHz

Passband Ripple

PR

± 0.005

dB

Stopband Attenuation

SA

72

dB

Group Delay

(Note 11)

GD

-

19.3

-

1/fs

Digital Filter + SCF

Frequency Response

20.0kHz

40.0kHz

80.0kHz

fs=44.kHz

fs=96kHz

fs=192kHz

FR

FR

FR

-

-

-

+0.1/-4.3

+0.1/-3.3

+0.1/-3.7

-

-

-

dB

dB

dB

Note 12. The passband and stopband frequencies scale with fs. For example, PB = 0.185×fs (@

±0.04dB), SB = 0.888×fs.

DC CHARACTERISTICS

(Ta = 25

°C; AVDD, DVDD = 2.7 ∼ 3.6V)

Parameter

Symbol

Min

Typ

Max

Units

High-Level Input Voltage

Low-Level Input Voltage

VIH

VIL

70%DVDD

-

-

-

30%DVDD

V

V

High-Level Output Voltage

(Iout = -80µA)

Low-Level Output Voltage

(Iout = 80µA)

VOH

VOL

DVDD-0.4

-

-

-

0.4

V

V

Input Leakage Current

(Note 13)

Iin

-

-

± 10

µA

Note 13. P/S pin has an internal pull-up device and TDM0 pin has an internal pull-down device, nominally 100k

Ω.