ADSP-1981BL AD [Analog Devices], ADSP-1981BL Datasheet - Page 3

• Manufacturer Part Number: ADSP-1981BL
• Description: AC 97 SoundMAX Codec
• Manufacturer: AD [Analog Devices]

SPECIFICATIONS
TEST CONDITIONS
Standard test conditions, unless otherwise noted.
Table 1.
Parameter
Temperature
Digital Supply (DV
Analog Supply (AV
Sample Rate (f
Input Signal
Analog Output Pass Band
DAC
ADC
GENERAL SPECIFICATIONS
Table 2.
Parameter
ANALOG INPUT
MASTER VOLUME
PROGRAMMABLE GAIN AMPLIFIER—ADC
ANALOG MIXER—INPUT GAIN/AMPLIFIERS/ATTENUATORS
Input Voltage (RMS Values Assume Sine Wave Input)
Input I
Input Capacitance
Step Size (0 dB to −46.5 dB): LINE_OUT_L, LINE_OUT_R
Output Attenuation Range
Step Size (0 dB to −46.5 dB): MONO_OUT
Output Attenuation Range
Step Size (0 dB to −46.5 dB): HP_OUT_R, HP_OUT_L
Output Attenuation Range Span
Mute Attenuation of 0 dB Fundamental
Step Size (0 dB to 22.5 dB)
PGA Gain Range
Signal-to-Noise Ratio (SNR)
LINE_IN, AUX, CD, PHONE_IN
MIC_IN with 20 dB Gain
MIC_IN with 0 dB Gain
CD to LINE_OUT
Other to LINE_OUT
mpedanc
S
)
DD
DD
e
1
)
)
1
1
1
1
1
Test Condition
25°C
3.3 V
3.3 V
48 kHz
1008 Hz
20 Hz to 20 kHz
Calibrated
−3 dB Attenuation Relative to Full Scale
0 dB Input
10 kΩ Output Load (LINE_OUT)
32 Ω Output Load (HP_OUT)
Calibrated
0 dB Gain
Input −3.0 dB Relative to Full Scale
1
Rev. A | Page 3 of 32
Min
80
Typ
0.707
2.0
0.0707
0.2
1.707
2.0
20
5
1.5
46.5
1.5
46.5
1.5
46.5
1.5
22.5
90
90
Max
7.5
AD1981BL
Unit
V rms
V p-p
V rms
V p-p
V rms
V p-p
kΩ
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB