CS53L30 datasheet(9/67 Pages) CIRRUS

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DS992F2

CS53L30

3 Characteristics and Specifications

Section 8 provides additional details about parameter definitions.

Table 3-1. Recommended Operating Conditions

Test conditions: GNDA = GNDD = 0 V; all voltages are with respect to ground.

Parameters 1

1.Device functional operation is guaranteed within these limits; operation outside them is not guaranteed or implied and may reduce device reliability.

Symbol

Min

Max

Unit

DC power supply

Analog/Digital

1.71

1.89

VP_MIN = 1

VP_MIN = 0

3.2

3.0

5.25

External voltage applied to pin 2

2.The maximum over/under voltage is limited by the input current.

VA domain pins

VIN-AI

–0.3

VA + 0.3

VP domain pins

VIN-PI

–0.3

VP + 0.3

Ambient temperature

Commercial

–10

+70

C

Table 3-2. Absolute Maximum Ratings

Test conditions: GNDA = GNDD = 0 V; all voltages are with respect to ground.

Parameters

Symbol

Min

Max

Units

DC power supply

Analog/digital

Mic bias

–0.3

2.22

5.6

Input current 1

1.Any pin except supplies. Transient currents of up to ±100 mA on the capture-path pins do not cause SCR latch-up.

Iin

—±10

Ambient operating temperature (power applied)

–50

+115

°C

Storage temperature (no power applied)

Tstg

–65

+150

°C

CAUTION: Operation at or beyond these limits may permanently damage the device.

Table 3-3. Combined ADC On-Chip Analog, Digital Filter, SRC, and DMIC Characteristics

Test conditions (unless otherwise specified): TA = +25°C; MCLK = 12.288 MHz; characteristics do not include the effects of external AC-coupling

capacitors. Path is INx to SDOUT. Analog and digital gains are all set to 0 dB; HPF disabled.

Parameters 1

1.Specifications are normalized to Fs and can be denormalized by multiplying by Fs.

Min

Typ

Max

Units

Fsint = Fsext =

Fs = 48 kHz [2]

2.See Section 5.6 for information about combined filter response when Fsint is not equal to Fsext.

ADC notch filter on

(ADCx_NOTCH_

DIS = 0)

Passband

–0.05-dB corner

–3.0-dB corner

—

0.391

0.410

—

Passband ripple (0 Hz to 0.394 Fs; normalized to 0 Hz)

–0.13

—

0.14

Stopband @ –70 dB

—

0.492

—

Total group delay

—

15.3/Fsint +6.5/Fsext

—s

ADC notch filter off

(ADCx_NOTCH_

DIS = 1)

Passband

–0.05-dB corner

–3.0-dB corner

—

0.445

0.470

—

Passband ripple (0 Hz to 0.447 Fs; normalized to 0 Hz)

–0.09

—

0.14

Stopband @ –70 dB

—

0.639

—

Total group delay

—

15.5/Fsint +6.6/Fsext

—s

Table 3-4. ADC High-Pass Filter (HPF) Characteristics

Test conditions (unless specified otherwise): Analog and digital gains are all set to 0 dB; ADCx_HPF_CF = 00.

Parameters 1

1.Response scales with Fsint. Specifications are normalized to Fsint and are denormalized by multiplying by Fsint.

Min

Typ

Max

Units

Passband 2

2.Characteristics do not include effects of the analog HPF filter formed by the external AC-coupling capacitors and the input impedance.

–0.05-dB corner

–3.0-dB corner

—

3.57x10–4

3.88x10–5

—

Fsint

Passband ripple (0.417x10–3 Fs to 0.417 Fs; normalized to 0.417 Fs)

—

0.01

Phase deviation @ 0.453 x 10–3 Fs

—

4.896

—

Filter settling time 3

3.Required time for the magnitude of the DC component present at the output of the HPF to reach 5% of the applied DC signal.

ADCx_HPF_CF = 00 (3.88 x 10–5 x Fsint mode)

ADCx_HPF_CF = 01 (2.5 x 10–3 x Fsint mode)

ADCx_HPF_CF = 10 (4.9 x 10–3 x Fsint mode)

ADCx_HPF_CF = 11 (9.7 x 10–3 x Fsint mode)

—

12260/Fsint

200/Fsint

100/Fsint

50/Fsint

—

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