EKA8561A 查看數據表（PDF） - ELAN Microelectronics

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EKA8561A

USB Audio Controller

ELAN Microelectronics 

eKA8561A

USB Audio Controller

8.2 Analog Electrical Characteristic

Parameter

Condition

Min

Typ

Max

Unit

ADC

ADC Resolution

-

-

10

-

Bits

ADC Sampling Frequency

-

-

48

-

kHz

Internal High Reference Voltage for ADC

-

-

2.55

-

V

Internal Low Reference Voltage for ADC

-

-

0.75

-

V

Pre-Amplifier Spec.

Pre-Amplifier Voltage Gain

-

19.5

20

20.5

dB

Gain Amplifier Spec.

Voltage Amplifier Gain

-

49

50

51

dB

Output Voltage Swing

-

-

1.6

Vp-p

Output Voltage

-

0.85

-

2.45

V

ALC Circuit Spec.

ALC Detection Level

MIC input = 7.5mV -40

-

-

dBm

ALC Operating Range

-

36

40

44

dB

LPF Spec

Pass-Band Ripple

-

-

-

0.5

dB

Pass-Band Cutoff Frequency

-

-

4

-

kHz

Stop-Band Attenuation @ 24kHz

-

70

-

-

dB

Stop-Band Attenuation @ 48kHz

-

90

-

-

dB

DAC

DAC Resolution

-

-

10

-

Bits

DAC Sampling Frequency

-

-

48

-

kHz

Reference Voltage (Vref)

-

1.45

1.65

1.85

V

Minimum Analog Output Voltage

-

0.99

1.04

1.09

V

Maximum Analog Output Voltage

-

2.15

2.26

2.37

V

Full Scale Voltage Range

VDA=3.3V

-5%

1.2

+5%

V

Analog Output Impedance at Each Output Pin

-

-

-

200

Ω

Analog Output Capacitance at Each Output Pin

-

-

-

20

pF

External Load Impedance

-

-

32

-

Ω

Volume Control Step

-

-

16

-

Step

Product Specification (V0.1) 04.21.2006

•7

(This specification is subject to change without further notice)

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