AD1846 Analog Devices, AD1846 Datasheet - Page 2

• Manufacturer Part Number: AD1846
• Description: Low Cost Parallel-port 16-bit Soundport Stereo Codec
• Manufacturer: Analog Devices

STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED
Temperature
Digital Supply (V
Analog Supply (V
Word Rate (F
Input Signal
Analog Output Passband
FFT Size
V
V
V
V
ANALOG INPUT
Full Scale Input Voltage (RMS Values Assume Sine Wave Input)
Input Impedance
Input Capacitance
PROGRAMMABLE GAIN AMPLIFIER—ADC
Step Size (0 dB to 22.5 dB)
PGA Gain Range Span
AUXILIARY INPUT ANALOG AMPLIFIERS/ATTENUATORS
Step Size (+12 dB to –28.5 dB, Referenced to DAC Full Scale)
Auxiliary Gain/Attenuation Range Span
Auxiliary Input Impedance*
AD1846–SPECIFICATIONS
IH
IL
OH
OL
Line
Mic
(All Steps Tested)
MGE = 0
MGE = 1
(–30 dB to –34.5 dB, Referenced to DAC Full Scale)
S
)
DD
CC
)
)
25
5.0
5.0
48
1007
20 Hz to 20 kHz
4096
2.4
0.8
2.4
0.4
Min
1.0
21.0
V
V
kHz
Hz
V
V
V
V
C
–2–
Typ
1.5
22.5
DAC Output Conditions
ADC Input Conditions
Min
2.5
2.5
0.29
100
Min
1.3
1.0
45.5
10
Post-Autocalibrated
0 dB Attenuation
Full Scale (0 dB)
16-Bit Linear Mode
No Output Load
Mute Off
Post-Autocalibrated
0 dB Gain
–1.0 dB Relative to Full Scale
Line Input
16-Bit Linear Mode
Inputs Driven with Low Impedance ( 50 ) Source
46.5
Typ
1
2.8
1
2.8
0.36
Typ
1.5
1.5
Max
2.0
24.0
3.1
47.5
Max
3.1
0.43
15
Max
1.7
2.0
V p-p
k
Units
dB
dB
dB
dB
Units
V rms
V p-p
V rms
V p-p
pF
Units
dB
k
REV. A