TDA8928ST View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA8928ST

Power stage 2 x 10 or 1 x 20 W class-D audio amplifier

Philips Electronics 

Philips Semiconductors

Power stage 2 x 10 or 1 x 20 W class-D

audio amplifier

Preliminary specification

TDA8928J

13 AC CHARACTERISTICS

VP = ±12.5 V; Tamb = 25 °C; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX. UNIT

Single-ended application; note 1

Po

output power

THD

η

total harmonic distortion

efficiency endstage

RL = 8 Ω

THD = 0.5 %

7(2)

8

−

W

THD = 10 %

9(2)

10

−

W

RL = 16 Ω

THD = 0.5 %

−

4

−

W

THD = 10 %

−

5

−

W

Po = 1 W; note 3

fi = 1 kHz

−

fi = 10 kHz

−

Po = 2 × 10 W; fi = 1 kHz; note 4 −

0.05 0.1 %

0.2 −

%

90

−

%

Notes

1. VP = ±12.5 V; RL = 8 Ω; fi = 1 kHz; fosc = 310 kHz; Rs = 0.1 Ω (series resistance of filter coil); Tamb = 25 °C;

measured in reference design (SE application) shown in Fig.5; unless otherwise specified.

2. Indirectly measured; based on Rds(on) measurement.

3. Total Harmonic Distortion (THD) is measured in a bandwidth of 22 Hz to 20 kHz (AES 17 brickwall filter). When

distortion is measured using a low-order low-pass filter a significantly higher value will be found, due to the switching

frequency outside the audio band. Measured using the typical application circuit, given in Fig.5.

4. Efficiency for power stage.

2004 May 05

9

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