CDB42438 Cirrus Logic Inc, CDB42438 Datasheet - Page 18

• Manufacturer Part Number: CDB42438
• Description: Eval Bd 108dB 6&8ch Multi-Chnl CODECs
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42438

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42438
• Primary Attributes: 6 Single-Ended and 2 Differential Analog Inputs and 8 Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: Graphic User Interface
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V to 12 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS42438
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
• Other names: 598-1500

18
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
11. Guaranteed by design. The DC current draw represents the allowed current draw from the AOUT pin
12. One-half LSB of triangular PDF dither is added to data.
13. 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 50
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 11)
(Note 13)
(Note 13)
(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
-
-
-
-
-
-
-
-
-
-
-
-
-
-
12) in
A
3. R
Differential
= -40 to +85°C; VD = VLS = VLC = 3.3 V±5%, VA = 5 V±5%;
Figure 26 on page 54
±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 26 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
54; Measure-
10
-
-
-
-
-
-
-
-
-
-
-
-
-
CS42438
DS646F2
ppm/°C
Unit
Vpp
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
μA
pF
Ω