DSD1791_08 Datasheet, PDF (3/56 Pages) Texas Instruments – 24 BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER

www.ti.com
DSD1791
SLES072B − MARCH 2003 − REVISED NOVEMBER 2006
ELECTRICAL CHARACTERISTICS (Continued)
all specifications at TA = 25°C, VCC = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unless otherwise noted
PARAMETER
TEST CONDITIONS
DSD1791DB
MIN
TYP
MAX
UNIT
DIGITAL INPUT/OUTPUT
Logic family
TTL compatible
VIH
Input logic level
VIL
IIH
Input logic current
IIL
VOH
Output logic level
VOL
DYNAMIC PERFORMANCE (PCM MODE) ⁽¹⁾
VIN = VDD
VIN = 0 V
IOH = –2 mA
IOL = 2 mA
2
VDC
0.8
10
µA
–10
2.4
VDC
0.4
THD+N at VOUT = 0 dB
Dynamic range
Signal-to-noise ratio
Channel separation
Level linearity error
DYNAMIC PERFORMANCE (DSD MODE) ^{(1) (2)}
fS = 44.1 kHz
fS = 96 kHz
fS = 192 kHz
EIAJ, A-weighted, fS = 44.1 kHz
EIAJ, A-weighted, fS = 96 kHz
EIAJ, A-weighted, fS = 192 kHz
EIAJ, A-weighted, fS = 44.1 kHz
EIAJ, A-weighted, fS = 96 kHz
EIAJ, A-weighted, fS = 192 kHz
fS = 44.1 kHz
fS = 96 kHz
fS = 192 kHz
VOUT = –120 dB
0.001% 0.002%
0.0015%
0.003%
110
113
113
dB
113
110
113
113
dB
113
106
110
110
dB
109
±1
dB
THD+N at VOUT = 0 dB
Dynamic range
2.1 V rms
–60 dB, EIAJ, A-weighted
0.001%
113
dB
Signal-to-noise ratio
EIAJ, A-weighted
113
dB
ANALOG OUTPUT
Gain error
–8
±3
8 % of FSR
Gain mismatch, channel-to-channel
–3
±0.5
3 % of FSR
Bipolar zero error
At BPZ
–2
±0.5
2 % of FSR
Differential output voltage ⁽³⁾
Full scale (0 dB)
3.2
V p-p
Bipolar zero voltage ⁽³⁾
At BPZ
1.4
V
Load impedance ⁽³⁾
R1 = R2
1.7
kΩ
(1) _{Dynamic performance and dc accuracy are specified at the output of the postamplifier as shown in Figure 33. Analog performance specifications}
are measured using the System Twot Cascade audio measurement system by Audio Precisiont in the averaging mode. For all
sampling-frequency operations, measurement bandwidth is limited with a 20-kHz AES17 filter.
(2) _{Analog performance in the DSD mode is specified as the DSD modulation index of 100%. This is equivalent to PCM mode performance at}
44.1 kHz and 64 fS.
(3) _{These parameters are defined at the DSD1791 output pins. Load impedances, R1 and R2, are input resistors of the postamplifier. They are defined}
as dc loads.
Audio Precision and System Two are trademarks of Audio Precision, Inc.
Other trademarks are the property of their respective owners.
3