CS42448-CQZR Cirrus Logic Inc, CS42448-CQZR Datasheet - Page 15

• Manufacturer Part Number: CS42448-CQZR
• Description: IC,Soundcard Circuits,CMOS,QFP,64PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

DS648F2
ANALOG OUTPUT CHARACTERISTICS (AUTOMOTIVE)
(Test Conditions (unless otherwise specified): T
Full-scale 997 Hz output sine wave (see
ment Bandwidth is 10 Hz to 20 kHz.)
Notes:
Fs = 48 kHz, 96 kHz, 192 kHz
Dynamic Range
18 to 24-Bit
16-Bit
Total Harmonic Distortion + Noise
18 to 24-Bit
16-Bit
Interchannel Isolation
Analog Output
Full-Scale Output
Interchannel Gain Mismatch
Gain Drift
Output Impedance
DC Current draw from an AOUT pin
AC-Load Resistance (R
Load Capacitance (C
10. Guaranteed by design. The DC current draw represents the allowed current draw from the AOUT pin
11. One-half LSB of triangular PDF dither is added to data.
12. Guaranteed by design. See
due to typical leakage through the electrolytic DC-blocking capacitors.
maximum capacitance required for the internal op-amp's stability and signal integrity. In this circuit to-
pology, C
this value beyond the recommended 100 pF can cause the internal op-amp to become unstable. See
“External Filters” on page 53
Parameter
L
L
)
will effectively move the dominant pole of the two-pole amp in the output stage. Increasing
L
)
unweighted
unweighted
A-weighted
A-weighted
(Note 10)
(Note 12)
(Note 12)
(1 kHz)
-20 dB
-60 dB
-20 dB
-60 dB
0 dB
0 dB
1.210•VA 1.300•VA 1.392•VA 0.605•VA 0.650•VA 0.696•VA
Note
Figure
for a recommended output filter.
100
Min
97
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
11) in
A
2. R
Differential
= -40 to +85°C; VD = VLS = VLC = 3.3 V±5%, VA = 5 V±5%;
Figure 32 on page 57
±100
L
Typ
108
105
100
100
-98
-85
-45
-93
-76
-36
0.1
99
96
and C
-
-
-
L
reflect the recommended minimum resistance and
Max
0.25
100
-90
10
-
-
-
-
-
-
-
-
-
-
-
-
-
and
Min
97
94
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Figure 32 on page
Single-Ended
±100
Typ
105
102
100
100
-95
-82
-42
-90
-73
-33
0.1
96
93
-
-
-
Max
0.25
100
-87
57; Measure-
10
-
-
-
-
-
-
-
-
-
-
-
-
-
CS42448
ppm/°C
Unit
Vpp
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
μA
kΩ
pF
Ω
15