DSD1794 Datasheet, PDF (4/47 Pages) Texas Instruments – 24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STRRO DIGITAL-TO-ALALOG CONVERTER

DSD1794
SLES077A − MARCH 2003 − REVISED NOVEMBER 2003
www.ti.com
ELECTRICAL CHARACTERISTICS (Continued)
all specifications at TA = 25°C, VCC1 = VCC2L = VCC2R = 5 V, VDD = 3.3. V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unless
otherwise noted
PARAMETER
DYNAMIC PERFORMANCE (MONO MODE) ⁽¹⁾⁽²⁾
TEST CONDITIONS
DSD1794DB
MIN
TYP
MAX
UNIT
fS = 44.1 kHz
THD+N at VOUT = 0 dB
fS = 96 kHz
fS = 192 kHz
EIAJ, A-weighted, fS = 44.1 kHz
Dynamic range
EIAJ, A-weighted, fS = 96 kHz
EIAJ, A-weighted, fS = 192 kHz
EIAJ, A-weighted, fS = 44.1 kHz
Signal-to-noise ratio
EIAJ, A-weighted, fS = 96 kHz
EIAJ, A-weighted, fS = 192 kHz
DSD MODE DYNAMIC PERFORMANCE ^{(1) (3)} (44.1 kHz, 64 FS)
THD+N at FS
4.5 V rms
0.0004%
0.0008%
0.0015%
132
132
dB
132
132
132
dB
132
0.0005%
Dynamic range
–60 dB, EIAJ, A-weighted
128
dB
Signal-to-noise ratio
EIAJ, A-weighted
128
dB
ANALOG OUTPUT
Gain error
–6
±2
6
% of FSR
Gain mismatch, channel-to-channel
–3
±0.5
3
% of FSR
Bipolar zero error
At BPZ
–2
±0.5
2
% of FSR
Output current
Full scale (0 dB)
7.8
mA p-p
Center current
At BPZ
–6.2
mA
DIGITAL FILTER PERFORMANCE
De-emphasis error
±0.004
dB
FILTER CHARACTERISTICS-1: SHARP ROLLOFF
Pass band
Stop band
Pass-band ripple
±0.00001 dB
–3 dB
0.546 fS
0.454 fS
0.49 fS
±0.00001 dB
Stop-band attenuation
Delay time
FILTER CHARACTERISTICS-2: SLOW ROLLOFF
Stop band = 0.546 fS
–130
dB
55/fS
s
Pass band
Stop band
Pass-band ripple
±0.04 dB
–3 dB
0.732 fS
0.254 fS
0.46 fS
±0.001
dB
Stop-band attenuation
Stop band = 0.732 fS
–100
dB
Delay time
(1) _{Filter condition:}
18/fS
s
THD+N: 20-Hz HPF, 20-kHz apogee LPF
Dynamic range: 20-Hz HPF, 20-kHz AES17 LPF, A-weighted
Signal-to-noise ratio: 20-Hz HPF, 20-kHz AES17 LPF, A-weighted
Channel separation: 20-Hz HPF, 20-kHz AES17 LPF
Analog performance specifications are measured using the System Two Cascade audio measurement system by Audio Precision in the averaging
mode.
(2) _{Dynamic performance and dc accuracy are specified at the output of the postamplifier as shown in Figure 34.}
(3) _{Dynamic performance and dc accuracy are specified at the output of the postamplifier as shown in Figure 35.}
4