AD1954 Analog Devices, AD1954 Datasheet - Page 3

• Manufacturer Part Number: AD1954
• Description: SigmaDSP Digital Audio Processor
• Manufacturer: Analog Devices

AD1954–SPECIFICATIONS
TEST CONDITIONS UNLESS OTHERWISE NOTED
Supply Voltages (AV
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 25°C
Input Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.288 MHz
Input Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD
Input Sample Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 kHz
Measurement Bandwidth . . . . . . . . . . . . . . . 20 Hz to 20 kHz
Word Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 bits
Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD
Load Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD
Input Voltage HI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 V
Input Voltage LO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 V
ANALOG PERFORMANCE
RESOLUTION
SIGNAL-TO-NOISE RATIO (20 Hz to 20 kHz) (Left/Right Output)
DYNAMIC RANGE (20 Hz to 20 kHz, –60 dB Input) (Left/Right Output)
TOTAL HARMONIC DISTORTION PLUS NOISE (Left/Right Output)
OUT-OF-BAND ENERGY (0.5 × f
SIGNAL-TO-NOISE RATIO (20 Hz to 20 kHz) (Subwoofer Output)
DYNAMIC RANGE (20 Hz to 20 kHz, –60 dB Input) (Subwoofer Output)
TOTAL HARMONIC DISTORTION PLUS NOISE (Subwoofer Output)
OUT-OF-BAND ENERGY (0.5 × f
ANALOG OUTPUTS
CMOUT
DC ACCURACY
INTERCHANNEL CROSSTALK (EIAJ method)
INTERCHANNEL PHASE DEVIATION
MUTE ATTENUATION
DE-EMPHASIS GAIN ERROR
NOTES
Performance of right and left channels are identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications).
Specifications subject to change without notice.
No Filter (Stereo)
With A-Weighted Filter
No Filter
With A-Weighted Filter
V
V
V
No Filter (Stereo)
With A-Weighted Filter
No Filter
With A-Weighted Filter
V
V
V
Differential Output Range (± Full Scale)
Output Capacitance at Each Output Pin
Gain Error
Interchannel Gain Mismatch
Gain Drift
O
O
O
O
O
O
= –0.5 dB
= –20 dB
= –60 dB
= –0.5 dB
= –20 dB
= –60 dB
DD
, DV
DD
) . . . . . . . . . . . . . . . . . . . 5.0 V
PRELIMINARY TECHNICAL DATA
S
S
to 100 kHz) (Left/Right Output)
to 100 kHz) (Subwoofer Output)
Min
TBD
TBD
TBD
Typ
24
109
112
109
112
–100
–92
–52
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
2.50
± 1.0
± 0.015
150
–120
± 0.1
–100
Max
–72.5
TBD
TBD
± 0.1
Unit
bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V p-p
pF
V
%
dB
ppm/°C
dB
Degrees
dB
dB