CS4244 datasheet(16/63 Pages) CIRRUS

16 / 63 page

DS900F2

CS4244

ANALOG OUTPUT CHARACTERISTICS (AUTOMOTIVE GRADE)

Test Conditions (unless otherwise specified): Device configured as shown in Section 2. on page 8. VA_SEL = 0 for

VA = 3.3 VDC, 1 for VA = 5.0 VDC.; TA = -40 to +85 C; Full-scale 1 kHz input sine wave; Sample Rate = 48 kHz;

Measurement Bandwidth is 20 Hz to 20 kHz; Specifications apply to all channels unless otherwise indicated; all

Power Down DACx bits = 0. See (Note 19).

Notes:

18. One LSB of triangular PDF dither added to data.

19. Loading configuration is given in Figure 5 below.

Figure 5. Equivalent Output Test Load

20. Parallel combination of all DAC DC loads. See Section 4.2.3.

21. Valid with the recommended capacitor values on FILT+ and VQ. See Figure 4 for test configuration.

VA, VREF= 3.3 V

(Differential/Single-ended)

VA, VREF= 5.0 V

(Differential/Single-ended)

Parameter

Min

Typ

Max

Min

Typ

Max

Unit

Dynamic Performance

Dynamic Range

18 to 24-Bit

A-weighted

unweighted

16-Bit

A-weighted

unweighted

98/94

95/91

106/102

103/99

101/97

98/94

109/105

106/102

Total Harmonic Distortion + Noise

-90/-88

-82/-80

-90/-88

-82/-80

Full-scale Output Voltage

1.48•VA/

0.74•VA

1.56•VA/

0.78•VA

1.64•VA/

0.82•VA

1.48•VA/

0.74•VA

1.56•VA/

0.78•VA

1.64•VA/

0.82•VA

Vpp

Interchannel Isolation (1 kHz)

100

Interchannel Gain Mismatch

0.1

0.25

0.1

0.25

Gain Drift

±100

ppm/°C

AC-Load Resistance (RL)(Note 19)



Load Capacitance (CL)(Note 19)

100

Parallel DC-Load Resistance(Note 20)



Output Impedance

100



PSRR (Note 21)

1 kHz

60 Hz

AOUTx

GND

22 µF

VOUT

R L

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