CS6403 datasheet(3/54 Pages) CIRRUS

3 / 54 page

DAC CHARACTERISTICS (TA = 25 °C; All DVDD, AVDD, and PVDD = 5.0V, Digital Input Levels:

Logic 0 = 0V, Logic 1 = DVDD; Signal test frequency 1kHz, word rate (Fs) = 8kHz, audio signal measurement

bandwidth is 20Hz to 20kHz; Microphone amp gain = 0dB; SPRKOUT outputs connected to 8

Ω load; CLKIN fre-

quency = 8.192MHz; unless otherwise specified)

Parameter

Symbol

Min

Typ

Max

Units

DAC Resolution

bits

DAC step size error

±0.5

LSB

Instantaneous Dynamic Range (20 Hz - 20 kHz)

IDR

Frequency Response

-0.8

+0.6

Programmable Output Level Attenuator Range

(Note 5)

-92.2

Gain Step Size

2.49

Gain Drift

(Note 2)

150

ppm/°C

VREF Reference Output Voltage

2.0

VCM Output Voltage

constant load only, >100k

Ω

-1.0

Offset Error

Full Scale Output Voltage

(SPKROUT pins)

(Note 6)

1.40

1.75

1.93

Common Mode Output Voltage (SPKROUT pins)

1.30

Total Harmonic Distortion at -0.5dBFS level, SPKROUT(Note 9)

THD

0.8

Output Impedance SPKROUT pins

0.4

Ω

Load Impedance SPKROUT pins

Ω

Output Capacitance

Audible Stop Band Attenuation (<20kHz)

Integrated Inaudible Energy

(>20kHz to 100kHz)

(Note 7)

mVrms

Power Supply Rejection

(1kHz)

PSR

Filter Transition Band

0.45

0.6

Group Delay

(Note 8)

Notes:

5. Attenuation settings greater than 92.2 dB will cause a full scale input signal to be completely

attenuated to zero signal level.

6. This is the peak differential output voltage. The peak-to-peak signal level on each output pin is

equal to the peak differential value.

7. Assuming an external 43.2 kHz RC output filter.

8. This group-delay specification is for the DAC only; additional group delay is introduced by the

AGC and high-pass filter that is implemented on the CS6403 in software.

9. Room temperature only.

CS6403

DS192PP6

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