PCM4201

SBAS342B − DECEMBER 2004 − REVISED APRIL 2006

www.ti.com

3

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, all characteristics are measured with TA = +25°C, VCC = +5V, and VDD = +3.3V. System clock frequency is set to

24.576 MHz. Device is operated in Slave mode.

PCM4201

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

RESOLUTION

24

Bits

AUDIO DATA FORMAT

Format

Two’s complement, MSB first data

Left-Justified / DSP Compatible

Word length

24

Bits

DIGITAL I/O

Input logic level

VIH

0.7 x VDD

VDD

V

Input logic level

VIL

0

0.3 x VDD

V

Output logic level

VOH

IOH = −2mA

0.8 x VDD

V

Output logic level

VOL

IOL = +2mA

0.2 x VDD

V

Input current

IIH

VIN = VDD

+10

µA

Input current

IIL

VIN = 0V

−10

µA

Input current(1)

IIH

VIN = VDD

+25

µA

Input current(1)

IIL

VIN = 0V

−25

µA

DIGITAL SWITCHING

Normal speed, low power

8

54

kHz

Output sampling frequency

fS

Normal speed, high performance

8

54

kHz

Output sampling frequency

fS

Double speed

54

108

kHz

System clock duty cycle

45

50

55

%

System clock frequency

2.048

27.65

MHz

AUDIO SERIAL-PORT TIMING

Delay from FSYNC rising to BCK rising

tDBK

5

ns

Delay from BCK rising to FSYNC rising

tDLK

5

ns

BCK high pulse width

tBCKH

72

ns

BCK low pulse width

tBCKL

72

ns

Data setup time

tS

10

ns

Data hold time

tH

10

ns

ANALOG INPUTS

Input voltage, full-scale range (FSR)

Differential input

5.0

VPP

Input impedance

Per analog input pin

15

k

Ω

Common-mode rejection

100

dB

DC PERFORMANCE

Output offset error

High-pass filter disabled

±4

% of FSR

Gain error

±4

% of FSR

(1) Applies to RATE (pin 5) and S/M (pin 6) inputs.

(2) All typical dynamic performance specifications were measured using an Audio Precision System Two Cascade or Cascade Plus test system and a PCM4201EVM

evaluation module. For Normal Speed operation, the measurement bandwidth is limited using the Audio Precision 22Hz high-pass filter and 20kHz low-pass filter.

For Double Speed mode, the measurement bandwidth is limited using the Audio Precision 22Hz high-pass filter and a user-defined 40kHz low-pass filter (the

fS/2 low pass filter may be utilized with similar results). All A-weighted measurements are made using the Audio Precision A-weighting filter in combination with

the filters previously noted here. Minimum and maximum dynamic performance limits are based upon the capability of the production test solution.