CS42438-CMZR(2006) View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS42438-CMZR
(Rev.:2006)

108 dB, 192 kHz 6-In, 8-Out TDM CODEC

Cirrus Logic 

CS42438

ANALOG INPUT CHARACTERISTICS (AUTOMOTIVE)

(Test Conditions (unless otherwise specified): TA = -40 to +85°C; VD = VLS = VLC = 3.3 V±5%, VA = 5 V±5%;

Full-scale input sine wave: 1 kHz through the active input filter in Figure 20 on page 50 and Figure 21 on page 50;

Measurement Bandwidth is 10 Hz to 20 kHz.)

Differential

Single-Ended

Parameter

Min

Typ

Max Min

Typ

Max Unit

Fs=48 kHz, 96 kHz

Dynamic Range

A-weighted 97

105

-

unweighted 94

102

-

40 kHz bandwidth unweighted -

99

-

94

102

-

dB

91

99

-

dB

-

96

-

dB

Total Harmonic Distortion + Noise -1 dB -

-98

-90

-

-95

-87

dB

(Note 5)

-20 dB -

-82

-

-

-79

-

dB

-60 dB -

-42

-

-

-39

-

dB

40 kHz bandwidth

-1 dB -

-87

-

-

-87

-

dB

ADC1-3 Interchannel Isolation

-

90

-

-

90

-

dB

ADC3 MUX Interchannel Isolation

-

85

-

-

85

-

dB

DC Accuracy

Interchannel Gain Mismatch

-

0.1

-

-

0.1

-

dB

Gain Drift

-

±100

-

-

±100

- ppm/°C

Analog Input

Full-Scale Input Voltage

1.04*VA 1.12*VA 1.20*VA 0.52*VA 0.56*VA 0.60*VA Vpp

Differential Input Impedance

(Note 6) 18

-

-

-

-

-

kΩ

Single-Ended Input Impedance (Note 7) -

-

-

18

-

-

kΩ

Common Mode Rejection Ratio (CMRR)

-

82

-

-

-

-

dB

Notes:

5. Referred to the typical full-scale voltage.

6. Measured between AINx+ and AINx-.

7. Measured between AINxx and AGND.

DS646F1

15

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