AD1849K Analog Devices, AD1849K Datasheet - Page 2

• Manufacturer Part Number: AD1849K
• Description: Serial-Port 16-Bit SoundPort Stereo Codec
• Manufacturer: Analog Devices

ELECTRICAL SPECIFICATIONS
STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED
Temperature
Digital Supply (V
Analog Supply (V
Clock (SCLK)
Master Mode
Word Rate (F
Input Signal
Analog Output Passband
V
V
External Load Impedance
External Load Impedance
External Load Capacitance
ANALOG INPUT
Input Voltage*
Input Capacitance
*Accounts for Sum of Worst Case Reference Errors and Worst Case Gain Errors.
PROGRAMMABLE GAIN AMPLIFIER—ADC
Step Size (0 dB to 22.5 dB)
PGA Gain Range*
DIGITAL DECIMATION AND INTERPOLATION FILTERS*
Passband Ripple
Transition Band
Stopband
Stopband Rejection
Group Delay
Group Delay Variation Over Passband
AD1849K–SPECIFICATIONS
Passband
IH
IL
(Line 0)
(Line 1)
(Line 0, 1)
(RMS Values Assume Sine Wave Input)
(All Steps Tested, –30 dB Input)
Line and Mic with 0 dB Gain
Mic with +20 dB Gain
Line and Mic with 0 dB Gain
Mic with +20 dB Gain
S
)
DD
CC
)
)
25
5.0
5.0
256
256 Bits per Frame
48
1
20 Hz to 20 kHz
2.4
0.8
10
48
100
V
V
F
kHz
kHz
V
V
k
pF
C
S
Min
0 94
2.66
0.094
0.266
Min
1.3
–0.2
19.8
Min
0
0.45
74
0.55
–2–
F
F
S
S
DAC Input Conditions
ADC Input Conditions
All tests are performed on all ADC and DAC channels.
0 dB Attenuation
Full-Scale Digital Inputs
16-Bit Linear Mode
OLB = 1
0 dB PGA Gain
–3.0 dB Relative to Full Scale
Line Input
16-Bit Linear Mode
Typ
0.99
2.80
0.099
0.280
Typ
1.5
Max
1.04
2.94
0.104
0.294
15
Max
1.7
22.7
42.7
Max
0.45
0.55
30/F
0.0
0.1
S
F
F
S
S
Units
V rms
V p-p
V rms
V p-p
pF
Units
dB
dB
dB
Units
Hz
dB
Hz
Hz
dB
s
REV. 0