AK7752 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK7752

Audio/Hands Free DSP with Stereo CODEC

Asahi Kasei Microdevices 

[AK7752]

2) fs=48kHz

(Ta = 25°C; AVDD, DVDD = 3.3V; VREFH = AVDD, VREFL = AVSS;

BITCLK = 64fs; Signal frequency 1kHz; Measurement frequency = 20Hz to 3.4kHz; fs = 48kHz;

CKM Mode 0 (CKM [3:0]=LLLL) Unless otherwise specified. )

Parameter

min

typ

max

ADC

Resolution

24

Section Dynamic Characteristics

S/(N+D) (-1dBFS)

76

86

Dynamic Range (A-weighted)

(Note 12)

83

91

S/N (A-weighted)

83

91

Inter-Channel Isolation (f=1kHz) (Note 13)

90

110

DC accuracy

Channel Gain Mismatch

0.2

0.5

Analog Input

Input Voltage

(Note 14)

1.80

2.00

2.20

Input Impedance

35

50

DAC

Resolution

18

Section Dynamic Characteristics

S/(N+D) (0 dB)

78

88

Dynamic Range (A-weighted)

(Note 12)

87

95

S/N (A-weighted)

87

95

Inter-Channel Isolation (f=1kHz) (Note 15)

85

100

DC Accuracy

Channel Gain Mismatch

0.2

0.5

Analog input

Output Voltage

(Note 16)

1.85

2.00

2.15

Load Resistance

10

Load Capacitance

50

Note 12. S/(N+D) when -60dB signal is applied.

Note 13. Inter-channel isolation between ALINE_IN and ANE_IN at –1 dB FS signal input.

Note 14. The full scale for analog input voltage is FS=(VREFH-VREFL)×0.606.

Note 15. Between ANE_OUT and ALINE_OUT.

Note 16. Full scale output voltage when VREFH=AVDD, VREFL=AVSS.

Units

Bits

dB

dB

dB

dB

dB

Vp-p

kΩ

Bits

dB

dB

dB

dB

dB

Vp-p

kΩ

pF

MS0578-E-01-PB

- 10 -

2007/09

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