EVAL-AD1955EB Datasheet, PDF (2/24 Pages) Analog Devices – High Performance Multibit
- DAC with SACD Playback

AD1955–SPECIFICATIONS
TEST CONDITIONS
(Unless otherwise noted.)
Analog Supply Voltages (AV_DD) . . . . . . . . . . . . . . . . . . . . 5 V
Digital Supply Voltages (DV_DD) . . . . . . . . . . . . . . . . . . . . 5 V
Reference Current (I_REF) . . . . . . . . . . . . . . . . . . . . . 0.960 mA
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 25°C
Input Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.288 MHz
Input Signal . . . . . . . . . . . . . . . . . 984.375 Hz, 0 dB Full Scale
Input Sample Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 kHz
Measurement Bandwidth . . . . . . . . . . . . . . . . 20 Hz to 20 kHz
Word Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Bits
Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 pF
Load Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 kΩ
Input Voltage HI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 V
Input Voltage LO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 V
ANALOG PERFORMANCE (See figures. I_REF = 0.960 mA, V_BIAS = 2.80 V.)
Parameter
Min
Typ
Max
Unit
Resolution
24
Bits
SIGNAL-TO-NOISE RATIO (20 Hz to 20 kHz)*
Differential Output (A-Weighted, RMS) (Stereo)
Differential Output (A-Weighted, RMS) (Mono)
Single-Ended (A-Weighted, RMS) (Stereo)
120
114
dB
123
dB
119
dB
DYNAMIC RANGE (20 Hz to 20 kHz, –60 dB Input)*
Differential Output (A-Weighted, RMS) (Stereo)
Differential Output (A-Weighted, RMS) (Mono)
Single-Ended (A-Weighted, RMS) (Stereo)
120
114
dB
123
dB
119
dB
Total Harmonic Distortion + Noise (Stereo) at 0 dBFS
–110
–102.5
dB
ANALOG OUTPUTS
Differential Output Range (Full Scale)
Output Capacitance at Each Output Pin
Output Bias Current, Each Output
8.64
100
–3.24
mA p-p
pF
mA
Out-of-Band Energy (0.5 Ï« f_S to 100 kHz)
Reference Voltage
–90
dB
2.245
2.39
2.505
V
DC ACCURACY
Gain Error
Interchannel Gain Mismatch
Gain Drift
±6
0.01
0.26
25
%
dB
ppm/°C
Interchannel Crosstalk (EIAJ Method)
Interchannel Phase Deviation
Mute Attenuation
De-Emphasis Gain Error
–125
± 0.1
–100
± 0.1
dB
Degrees
dB
dB
*Measured with Audio Precision System Two Cascade in RMS Mode. Averaging Mode will show approximately 2 dB better performance.
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.
–2–
REV. 0