CS42418(2004) 查看數據表（PDF） - Cirrus Logic

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CS42418
(Rev.:2004)

110 dB, 192 kHz 8-Ch Codec with PLL

Cirrus Logic 

CS42418

ANALOG OUTPUT CHARACTERISTICS (TA = 25° C; VA = 5 V, VD = 3.3 V, Logic "0" = DGND

=AGND = 0 V; Logic "1" = VLS = VLC = 5V; Measurement Bandwidth 10 Hz to 20 kHz unless otherwise specified.;

Full scale output 997 Hz sine wave, Test load RL = 3 kΩ, CL = 30 pF; OMCK = 12.288 MHz; Single speed Mode,

DAC_SCLK = 3.072 MHz; Double Speed Mode, DAC_SCLK = 6.144 MHz; Quad Speed Mode, DAC_SCLK =

12.288 MHz.)

Parameter

CS42418-CQ

CS42418-DQ

Symbol Min

Typ

Max Min

Typ

Max Unit

Dynamic performance for all modes

Dynamic Range(Note 8)

24-bit A-weighted

unweighted

16-bit A-Weighted

(Note 9) unweighted

104

110

101

107

-

97

-

94

-

104

110

-

dB

- 101 107

-

dB

-

-

97

-

dB

-

-

94

-

dB

Total Harmonic Distortion + Noise

THD+N

24-bit

0 dB

-

-20 dB

-

-60 dB

-

16-bit

0 dB

-

(Note 9)

-20 dB

-

-60 dB

-

-100

-91

-51

-94

-74

-34

-94

-

-

-

-

-

-

-

-

-

-

-100

-94

dB

-91

-

dB

-51

-

dB

-94

-

dB

-74

-

dB

-34

-

dB

Idle Channel Noise/Signal-to-noise

ratio

-

110

-

-

110

-

dB

Interchannel Isolation

(1 kHz)

-

90

-

-

90

-

dB

Analog Output Characteristics for all modes

Full Scale Differential Output

.88VA .92VA .94VA .88VA .92VA .94VA Vpp

Interchannel Gain Mismatch

-

0.1

-

-

0.1

-

dB

Gain Drift

Output Impedance

AC-Load Resistance

Load Capacitance

-

ZOUT

-

RL

3

CL

-

100

-

-

100

- ppm/°C

100

-

-

100

-

Ω

-

-

3

-

-

kΩ

-

30

-

-

30

pF

Notes: 8. One-half LSB of triangular PDF dither is added to data.

9. Performance limited by 16-bit quantization noise.

55

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