AK4537VN 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK4537VN

16-Bit ∆Σ Stereo CODEC with MIC/HP/SPK-AMP

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4537]

Parameter

min

typ

max

Mono Line Output Characteristics: RL=20kΩ, DAC → MOUT+/MOUT-

Output Voltage (Note 10) MOGN=1, -17dB

-

0.31

-

MOGN=0, +6dB

3.56

3.96

4.36

S/(N+D)

(-3dBFS) MOGN=1, -17dB

-

76

-

MOGN=0, +6dB

79

89

-

S/N

(A-weighted)

MOGN=1, -17dB

-

79

-

MOGN=0, +6dB

85

95

-

Load Resistance

MOGN=1, -17dB

2

-

-

MOGN=0, +6dB

20

-

-

Load Capacitance

-

-

30

Headphone-Amp Characteristics: RL=22.8Ω, DAC → HPL/HPR, DATT=0dB

Output Voltage (Note 11)

1.54

1.92

2.30

S/(N+D)

(−3dBFS)

60

70

-

S/N

(A-weighted)

80

90

-

Interchannel Isolation

70

85

-

Interchannel Gain Mismatch

-

0.1

0.5

Load Resistance

20

-

-

Load Capacitance

(C1 in Figure 2)

-

-

30

(C2 in Figure 2)

-

-

300

Speaker-Amp Characteristics: RL=8Ω, BTL, DAC → MOUT2 → MIN → SPP/SPN, ALC2=OFF

Output Voltage

SPKG= “0” (Po=150mW)

2.47

3.09

3.71

(Note 12) SPKG= “1” (Po=300mW)

-

4.38

-

SPKG= “0” (Po=150mW)

50

64

-

S/(N+D)

SPKG= “1” (Po=300mW)

-

20

-

(Po=250mW)

-

60

-

S/N

(A-weighted)

82

90

-

Load Resistance

8

-

-

Load Capacitance

-

-

30

Units

Vpp

Vpp

dBFS

dBFS

dB

dB

kΩ

kΩ

pF

Vpp

dBFS

dB

dB

dB

Ω

pF

pF

Vpp

Vpp

dB

dB

dB

dB

Ω

pF

Note 10. Output voltage is proportional to AVDD voltage. Vout = 1.2 x AVDD at Full-differential output.

Vout = 0.6 x AVDD at Single-end Output.

Note 11. Output voltage is proportional to AVDD voltage. Vout = 0.582 x AVDD.

Note 12. Output voltage is proportional to AVDD voltage.

Vout = 0.936 x AVDD(typ)@SPKG= “0”, 1.327 x AVDD(typ)@SPKG= “1” at Full-differential output.

HP-Amp

HPL/HPR pin

47µF

6.8Ω

C1

C2 16Ω

Figure 2. Headphone-amp output circuit

MS0202-E-04

-9-

2005/04

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