STW5094 datasheet(31/37 Pages) STMICROELECTRONICS

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STw5094

STEREO AUDIO DAC and FM CHARACTERISTICS (Unless otherwise specified, VCC = 2.7V to 3.3V,

Tamb = -30°C to 85°C; typical characteristics are specified at VCC =3V, Tamb = 25°C; OCK = 12.288MHz;

Full-Scale Input Sine Waves, 1015.625Hz; Input Sample Rate (Fs) = 48kHz; Input Data = 18Bits;

SCK = 3.072 MHz;

Measurement

Bandwidth

20Hz

20kHz,

unweighted.

Resistive

load

HPL, HPR = 30

Ω)

(*) Valid for I2S input (Audio Mode).

NOTE: Fs range: 8kHz - 48kHz.

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Resolution (*)

Bits

DYNR

Dynamic Range

A-weighted

THDL

Total Harmonic Distortion

maximum load

2Vpp output

HPL, HPR gain set to -6dB

Ω load

0.01

0.03

THD

Total Harmonic Distortion

2Vpp output

HPL, HPR gain set to -6dB

Ω load

0.004

Deviation from Linear Phase (*)

Measurement Bandwidth 20Hz to

20kHz, Fs= 48kHz.Combined

digital and analog filter

characteristics.

fPB

Passband (*)

Combined Digital and Analog

filter characteristics.

0.45Fs

kHz

Passband Ripple (*)

Combined Digital and Analog

filter characteristics.

0.2

fSB

StopBand (*)

Combined Digital and Analog

filter characteristics.

0.55Fs

kHz

StopBand Attenuation (*)

Combined Digital and Analog

filter characteristics.

Measurement Bandwidth up to

3.45Fs

TSF

Transient suppression filter cutoff

frequency

Out Of Band Noise

Measurement Bandwidth 20kHz

to 100kHz. Zero input signal

-90

dBr

tgd

Group Delay (*)

0.4

Interchannel Isolation (*)

HPR, HPL unloaded

100

Interchannel Gain Mismatch

0.2

Gain Error

0.5

SUT

Startup Time from Power Up

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