AD1887_15 datasheet(3/16 Pages) AD

部品番号	AD1887

部品情報	AC 97 SoundMAX Codec

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メーカー	AD [Analog Devices]

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REV. 0

AD1887

–3–

ANALOG-TO-DIGITAL CONVERTERS

Parameter

Min

Typ

Max

Unit

Resolution

16

Bits

Total Harmonic Distortion (THD)

–84

dB

Dynamic Range (–60 dB Input THD + N Referenced to Full Scale, A-Weighted)

84

87

dB

Signal-to-Intermodulation Distortion* (CCIF Method)

85

dB

ADC Crosstalk*

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

–100

–90

dB

LINE_IN to Other

–90

–85

dB

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

±10

%

Interchannel Gain Mismatch (Difference of Gain Errors)

±0.5

dB

ADC Offset Error

±5mV

DIGITAL-TO-ANALOG CONVERTERS

Parameter

Min

Typ

Max

Unit

Resolution

16

Bits

Total Harmonic Distortion (THD) HP_OUT

–75

dB

Dynamic Range (–60 dB Input THD + N Referenced to Full Scale, A-Weighted)

85

90

dB

Signal-to-Intermodulation Distortion* (CCIF Method)

–100

dB

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

±10

%

Interchannel Gain Mismatch (Difference of Gain Errors)

±0.7

dB

DAC Crosstalk* (Input L, Zero R, Measure R_OUT; Input R, Zero L,

–80

dB

Measure L_OUT)

Total Audible Out-of-Band Energy (Measured from 0.6

× fS to 20 kHz)*

–40

dB

ANALOG OUTPUT

Parameter

Min

Typ

Max

Unit

Full-Scale Output Voltage; HP_OUT

1

V rms

2.83

V p-p

Output Impedance*

800

Ω

External Load Impedance*

32

Ω

Output Capacitance*

15

pF

External Load Capacitance

100

pF

VREF

2.05

2.25

2.45

V

VREF_OUT

2.25

V

VREF_OUT Current Drive

5mA

Mute Click (Muted Output Minus Unmuted Midscale DAC Output)

±5mV

STATIC DIGITAL SPECIFICATIONS

Parameter

Min

Typ

Max

Unit

High-Level Input Voltage (VIH): Digital Inputs

0.65

× DV

DD

V

Low-Level Input Voltage (VIL)

0.35

× DVDD V

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

0.9

× DVDD

V

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

0.1

× DV

DD

V

Input Leakage Current

–10

+10

µA

Output Leakage Current

–10

+10

µA

POWER SUPPLY

Parameter

Min

Typ

Max

Unit

Power Supply Range—Analog (AVDD)

4.75

5.25

V

Power Supply Range—Digital (DVDD)

3.15

3.45

V

Power Dissipation—5 V/3.3 V

253

mW

Analog Supply Current—5 V (AVDD)36

mA

Digital Supply Current—3.3 V (DVDD)22

mA

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

40

dB

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

*Guaranteed but not tested.

同様の部品番号 - AD1887_15

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