Analog output characteristics – Cirrus Logic CS42526 User Manual

Page 9

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DS585F2

9

CS42526

ANALOG OUTPUT CHARACTERISTICS

(T

A

= 25° C; VA =VARX= 5 V, VD = 3.3 V, Logic “0” = DGND =AGND = 0 V; Logic “1” = VLS = VLC = 5V; Measure-

ment Bandwidth 10 Hz to 20 kHz unless otherwise specified.; Full-scale output 997 Hz sine wave, Test load R

L

=

3 k

, C

L

= 30 pF; PDN_RCVR = 1; SW_CTRL[1:0] = ‘01’; OMCK = 12.288 MHz; Single-Speed Mode, CX_SCLK =

3.072 MHz; Double-Speed Mode, CX_SCLK = 6.144 MHz; Quad-Speed Mode, CX_SCLK = 12.288 MHz.)

Notes:

7. One LSB of triangular PDF dither is added to data.
8. Performance limited by 16-bit quantization noise.

Parameter

Symbol

Min Typ Max

Unit

Dynamic performance for all modes

Dynamic Range

(Note 7)

24-bit A-Weighted

unweighted

16-bit A-Weighted

(Note 8)

unweighted

108
105

-
-

114

111

97
94

-
-
-
-

dB
dB
dB
dB

Total Harmonic Distortion + Noise

24-bit 0 dB

-20 dB
-60 dB

16-bit 0 dB

(Note 8)

-20 dB

-60 dB

THD+N

-
-
-
-
-
-

-100

-91
-51
-94
-74
-34

-94

-
-
-
-

dB
dB
dB
dB
dB
dB

Idle Channel Noise/Signal-to-Noise Ratio (A-Weighted)

-

114

-

dB

Interchannel Isolation

(1 kHz)

-

90

-

dB

Analog Output Characteristics for all modes

Unloaded Full-Scale Differential Output Voltage

V

FS

.89 VA

.94 VA

.99 VA

Vpp

Interchannel Gain Mismatch

-

0.1

-

dB

Gain Drift

-

300

-

ppm/°C

Output Impedance

Z

OUT

-

150

-

AC-Load Resistance

R

L

3

-

-

k

Load Capacitance

C

L

-

-

30

pF

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