AD1981BLJST-REEL(Rev0) 데이터 시트보기 (PDF) - Analog Devices

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AD1981BLJST-REEL
(Rev.:Rev0)

AC ’97 SoundMAX® Codec

Analog Devices 

AD1981BL

Parameter

Min

Typ

ANALOG-TO-DIGITAL CONVERTERS

Resolution

Total Harmonic Distortion (THD)

Dynamic Range (–60 dB Input THD+N Referenced to Full Scale,

A-Weighted)

78

Signal-to-Intermodulation Distortion1 (CCIF Method)

ADC Crosstalk1

Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)

Line_In to Other

Gain Error2 (Full-Scale Span Relative to Nominal Input Voltage)

Interchannel Gain Mismatch (Difference of Gain Errors)

ADC Offset Error1

16

–87

83

85

–80

–100

DIGITAL-TO-ANALOG CONVERTERS

Resolution

Total Harmonic Distortion (THD) LINE_OUT

Total Harmonic Distortion (THD) HP_OUT

Dynamic Range (–60 dB Input THD+N Referenced to Full Scale,

82

A-Weighted)

Signal-to-Intermodulation Distortion1 (CCIF Method)

Gain Error2 (Output FS Voltage Relative to Nominal Output FS Voltage)

Interchannel Gain Mismatch (Difference of Gain Errors)

DAC Crosstalk1 (Input L, Zero R, Measure R_OUT; Input R,

Zero L, Measure L_OUT)

ANALOG OUTPUT

Full-Scale Output Voltage; LINE_OUT and MONO_OUT

Output Impedance1

External Load Impedance1

10

Output Capacitance1

External Load Capacitance1

Full-Scale Output Voltage; HP_OUT (0 dB Gain)

External Load Impedance1

32

VREF

1

VREF_OUT

VREF_OUT Current Drive

Mute Click (Muted Output Minus Unmuted Midscale DAC Output)

20

–88

–81

87.5

–100

0.707

2.0

15

1

1.12

2.25

±5

STATIC DIGITAL SPECIFICATIONS

High Level Input Voltage (VIH): Digital Inputs

Low Level Input Voltage (VIL)

High Level Output Voltage (VOH), IOH = 2 mA

Low Level Output Voltage (VOL), IOL = 2 mA

Input Leakage Current

Output Leakage Current

0.65 ϫ DVDD

0.9 ϫ DVDD

–10

–10

POWER SUPPLY

Power Supply Range—(AVDD and DVDD)

Power Dissipation

3.0

287

Analog Supply Current—3.3 V (AVDD)

39

Digital Supply Current—3.3 V (DVDD)

48

Power Supply Rejection (100 mV p-p Signal @ 1 kHz)1

(At Both Analog and Digital Supply Pins, Both ADCs and DACs)

40

Max

Unit

Bits

dB

dB

dB

dB

–80

dB

± 10

%

± 0.5

dB

±5

mV

Bits

dB

dB

dB

dB

± 10

%

± 0.7

dB

–80

dB

800

100

1.225

5

V rms

V p-p

Ω

kΩ

pF

pF

V rms

Ω

V

V

mA

mV

V

0.35 ϫ DVDD V

V

0.1 ϫ DVDD V

+10

µA

+10

µA

3.47

V

mW

mA

mA

dB

REV. 0

–3–

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