CS4215 datasheet(2/52 Pages) CIRRUS

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ANALOG CHARACTERISTICS( TA = 25°C; VA1, VA2, VD1, VD2 = +5V;

Input Levels: Logic 0 = 0V, Logic 1 = VD1, VD2; Full Scale Input Sine wave, No Gain, No Attenuation 1 kHz;

Conversion Rate = 48 kHz; No Gain, No Attenuation, SCLK = 3.072 MHz; Measurement Bandwidth is 10 Hz to

20 kHz; Slave mode; Unless otherwise specified.)

Parameter *

Symbol

Min

Typ

Max

Units

Analog Input Characteristics - Minimum gain setting (0 dB); unless otherwise specified.

ADC Resolution

Bits

ADC Differential Nonlinearity

±0.9

LSB

Instantaneous Dynamic Range

Line Inputs

IDR

Mic Inputs

Total Harmonic Distortion

Line Inputs

THD

0.012

Mic Inputs

0.032

Interchannel Isolation

Line to Line Inputs

Line to Mic Inputs

Interchannel Gain Mismatch

Line Inputs

0.5

Mic Inputs

0.5

Frequency Response (Note 1)

(0 to 0.45 Fs)

-0.5

+0.2

Programmable Input Gain

Line Inputs

-0.2

23.5

Mic Inputs

19.8

Gain Step Size

1.5

Absolute Gain Step Error

0.75

Offset Error

Line Inputs (AC Coupled)

±150

±400

with HPF = 0

Line Inputs (DC Coupled)

±10

±150

LSB

(No Gain)

Mic Inputs

±400

Offset Error

Line Inputs (AC Coupled)

±5

with HPF = 1 (Notes 1,2)

Line Inputs (DC Coupled)

±5LSB

(No Gain)

Mic Inputs

±5

Full Scale Input Voltage:

(MLB=0) Mic Inputs

0.250

0.28

0.310

Vpp

(MLB=1) Mic Inputs

2.50

2.8

3.10

Vpp

Line Inputs

2.50

2.8

3.10

Vpp

Gain Drift

100

ppm/

°C

Input Resistance

(Note 3)

Ω

Input Capacitance

CMOUT Output Voltage

(Note 4)

1.9

2.1

2.3

(Maximum output current = 400

µA)

Specifications are subject to change without notice.

* Parameter definitions are given at the end of this data sheet.

Mwave

™ is a trademark of the IBM Corporation.

Notes: 1. This specification is guaranteed by characterization, not production testing.

2. Very low frequency signals will be slightly distorted when using the HPF.

3. Input resistance is for the input selected. Non-selected inputs have a very high (>1M

Ω) input

resistance.

4. DC current only. If dynamic loading exists, then CMOUT must be buffered or the performance of

ADC’s and DAC’s may be degraded.

CS4215

DS76F2

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