TDA7572 datasheet(25/64 Pages) STMICROELECTRONICS

部件名	TDA7572

功能描述	200W mono bridge PWM amplifier with built-in step-up converter

PDF	64 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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25 / 64 page

TDA7572

Electrical specifications

25/64

4.4.1

Digital to analog converter

VOH_BST

BST gate high voltage

Isource = 0.5A

Isource = 20mA

9.2

VOL_BST

BST gate low voltage

Isink = 0.5A

Isink = 20mA

1.75V

0.080

Table 13.

Voltage booster

Symbol

Parameters

Test conditions

Min.

Typ.

Max.

Units

Table 14.

Digital to analog converter

Symbol

Parameters

Test conditions

Min.

Typ.

Max.

Units

Dynamic range at

-60dBFS

At output of analog filter

-60dBFS input 1KHz sine tone

Noise floor

At output of analog filter after >

25mS of –97dBFS input 20-20k Hz

flat

µV

THD+N

at maximum useful input

level

Input=-1.5dBFS

The DAC output is limited to

prevent operation in regions of

degraded DAC performance. This

spec represents the performance

at this maximum practical value

-60

Silent Mute

Must engage after 25mS of <-

96dbFS input signal

Differential output voltage

Magnitude of –1.5dBFS sine,

1 KHz

-10%

2.1

+10%

Vrms

Output resistance

1.8K

2.5K

2.8K

Ohms

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