CS4218 datasheet(3/44 Pages) CIRRUS

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ANALOG CHARACTERISTICS( TA = 25°C; VA, VD = +5V; Input Levels: Logic 0 = 0V,

Logic 1 = VD; 1kHz Input Sine Wave; CLKIN = 12.288 MHz; SM3 Slave sub-mode, 256 BPF; 0dB gain/attenu-

ation;Conversion Rate = 48 kHz; SCLK = 12.288 MHz; Measurement Bandwidth is 10 Hz to 20 kHz; Unless oth-

erwise specified.)

Parameter *

Symbol

Min

Typ

Max

Units

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

ADC Resolution

Bits

ADC Differential Nonlinearity

(Note 1)

±0.9

LSB

Instantaneous Dynamic Range

(Note 3)

IDR

Total Harmonic Distortion

THD

0.02

Interchannel Isolation

Interchannel Gain Mismatch

±0.5

Frequency Response

(Note 1)

-0.5

+0.2

Programmable Input Gain

22.5

Gain Step Size

1.5

Absolute Gain Step Error

0.75

Gain Drift

(Note 1)

100

ppm/

°C

Offset Error

0dB Gain

±50

LSB

22.5dB Gain

−±500

LSB

Full Scale Input Voltage

2.5

2.8

3.1

Vpp

Input Resistance

(Notes 1,2)

Ω

Input Capacitance

(Note 1)

Notes:

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

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

Ω) input resistance.

3. Operation in Slave sub-modes may yield results lower than the 80 dB minimum.

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

Specifications are subject to change without notice.

RECOMMENDED OPERATING CONDITIONS (AGND, DGND = 0V, all voltages with respect

to 0V.)

Parameter

Symbol

Min

Typ

Max

Units

Power Supplies:

Digital

4.75

5.0

5.25

Digital (Low Voltage)

3.0

3.3

3.6

Analog

4.75

5.0

5.25

Operating Ambient Temperature

025

°C

CS4218

DS135F1

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