STA333ML View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA333ML

2-channel microless high-efficiency digital audio system Sound Terminal ®

STMicroelectronics 

STA333ML

Electrical specifications

Table 7. Electrical specifications for power section (continued)

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

tf

Fall time

Resistive load Figure 4

-

8

10

ns

Supply current from

VCC in power down

PWRDN = 0

0.03 0.06

0.2

mA

PCM Input signal =

Ivcc

-60 dBFs.

Supply current from

VCC in operation

Switching frequency =

384 kHz

-

30

50

mA

No LC filters

Ivdd_dig

Supply current DDX

processing (reference

only)

Internal clock =

49.152 MHz

Supply current in

standby

-

10

30

50

mA

8

11

25

mA

ISCP short-circuit protection Hi-Z output

UVL

Undervoltage

protection threshold

-

2.7

3.8

5.0

A

-

3.5

4.3

V

tmin

Output minimum pulse

width

No load

DR Dynamic range

-

20

30

60

ns

-

100

-

dB

SNR Signal-to-noise ratio

THD+N

Total harmonic

distortion + noise

A-weighted

Po = 1 W, f = 1 kHz

-

100

-

dB

-

0.05

0.2

%

PSRR

Power supply rejection

ratio

DDX stereo, <5 kHz

Vripple = 1 V RMS

Audio input = dither only

-

80

-

dB

XTALK Crosstalk

DDX stereo, <5 kHz

One chan. driven at 1 W

-

80

-

dB

other channel measured



Peak efficiency, DDX

mode

Po = 2 x 20 W into 8 

-

90

-

%

fsw

PWM carrier frequency

switching

-

-

384

-

kHz

DocID13177 Rev 8

9/23

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