AD1981BBSTZ datasheet(3/32 Pages) AD

3 / 32 page

AD1981B

Rev. C | Page 3 of 32

SPECIFICATIONS

TEST CONDITIONS

Standard test conditions, unless otherwise noted.

Table 1.

Parameter

Test Condition

Temperature

25°C

Digital Supply (DVDD)

3.3 V

Analog Supply (AVDD)

5.0 V

Sample Rate (fS)

48 kHz

Input Signal

1008 Hz

Analog Output Pass Band

20 Hz to 20 kHz

DAC

Calibrated

−3 dB Attenuation Relative to Full Scale

0 dB Input

10 kΩ Output Load (LINE_OUT)

32 Ω Output Load (HP_OUT)

ADC

Calibrated

0 dB Gain

Input −3.0 dB Relative to Full Scale

GENERAL SPECIFICATIONS

Table 2.

Parameter

Min

Typ

Max

Unit

ANALOG INPUT

Input Voltage (RMS Values Assume Sine Wave Input)

LINE_IN, AUX, CD, PHONE_IN

V rms

2.83

V p-p

MIC_IN with 20 dB Gain

0.1

V rms

0.283

V p-p

MIC_IN with 0 dB Gain

V rms

2.83

V p-p

Input Impedance1

kΩ

Input Capacitance1

7.5

MASTER VOLUME

Step Size (0 dB to −46.5 dB): LINE_OUT_L, LINE_OUT_R

1.5

Output Attenuation Range1

46.5

Step Size (0 dB to −46.5 dB): MONO_OUT

1.5

Output Attenuation Range1

46.5

Step Size (0 dB to −46.5 dB): HP_OUT_R, HP_OUT_L

1.5

Output Attenuation Range Span1

46.5

Mute Attenuation of 0 dB Fundamental1

PROGRAMMABLE GAIN AMPLIFIER—ADC

Step Size (0 dB to 22.5 dB)

1.5

PGA Gain Range

22.5

ANALOG MIXER—INPUT GAIN/AMPLIFIERS/ATTENUATORS

Signal-to-Noise Ratio (SNR)

CD to LINE_OUT

Other to LINE_OUT1

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