AK4342EN datasheet(7/43 Pages) AKM

7 / 43 page

ASAHI KASEI

[AK4342]

MS0506-E-02

2006/07

- 7 -

ANALOG CHARACTERISTICS

(Ta=25

°C; AVDD=DVDD=HVDD=PVDD=3.3V, TVDD=1.8V, AVSS=DVSS=HVSS=PVSS=0V; fs=44.1kHz;

Signal Frequency =1kHz; Measurement band width=10Hz

∼ 20kHz; Headphone-Amp: R

L =16Ω; Line output: RL =10kΩ,

Aux output: RL =10kΩ; Charge Pump Circuit External Capacitance: C1=C2= 2.2µF (see Figure 2); unless otherwise

specified)

Parameter

min

typ

max

Units

DAC Resolution

bit

LINEIN: (LIN/RIN pins)

Analog Input Characteristics:

Maximum Input Voltage (Note 7)

1.98

Vpp

Feedback Resistance

Ω

Gain (LIN/RIN pins: External resistor = 20k

Ω) (Note 8)

Vin = 1Vpp

LIN/RIN

→ HPL/HPR (Note 9)

−1.5

1.5

4.5

LIN/RIN

→ LOUT/ROUT (Note 10)

4.5

7.5

10.5

LIN/RIN

→ LAUX/RAUX

−4.7

−1.7

1.3

Headphone-Amp: (DAC

HPL/HPR pins) (Note 11)

Analog Output Characteristics

THD+N

fs=44.1kHz

0dBFS Output, Po=62.5mW

−40

BW=20kHz

−4dBFS Output, Po=25mW

−60

−50

fs=96kHz

0dBFS Output, Po=62.5mW

−40

BW=40kHz

−4dBFS Output, Po=25mW

−60

−50

Dynamic Range (

−60dBFS Output, A-weighted)

S/N (A-weighted)

Interchannel Isolation

DC Accuracy

Interchannel Gain Mismatch

0.2

1.0

Gain Drift

200

ppm/

°C

Load Resistance

Ω

Load Capacitance

300

Output Voltage (0dBFS Output) (Note 12)

0.9

1.0

1.1

Vrms

Line Output: (DAC

LOUT/ROUT pins) (Note 13)

Analog Output Characteristics

THD+N

fs=44.1kHz

0dBFS Output

−88

−78

BW=20kHz

-60dBFS Output

−37

fs=96kHz

0dBFS Output

−88

−78

BW=40kHz

-60dBFS Output

−35

Dynamic Range (

−60dBFS Output, A-weighted)

100

S/N (A-weighted)

100

Interchannel Isolation

100

DC Accuracy

Interchannel Gain Mismatch

0.2

0.8

Gain Drift

200

ppm/

°C

Load Resistance

Ω

Load Capacitance

(C3 in Figure 3)

Output Voltage

(Note 14)

1.8

2.0

2.2

Vrms

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