TDA8927ST datasheet(13/36 Pages) PHILIPS

13 / 36 page

2001 Dec 11

Philips Semiconductors

Objective speciﬁcation

Power stage 2

× 80 W class-D

audio ampliﬁer

TDA8927

13 AC CHARACTERISTICS

Notes

1. VP = ±25 V; RL =4 Ω; fi = 1 kHz; Tamb =25 °C; measured in reference design in Figs 9 and 11; 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 22 kHz. 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.

4. Efficiency for power stage; output power measured across the loudspeaker load.

5. VP = ±25 V; RL =8 Ω; fi = 1 kHz; Tamb =25 °C; measured in reference design in Figs 9 and 11; unless otherwise

specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Single-ended application; note 1

output power

RL =4 Ω; THD = 0.5%; VP = ±25 V

50(2)

−

RL =4 Ω; THD = 10%; VP = ±25 V

60(2)

−

RL =4 Ω; THD = 0.5%; VP = ±27 V

60(2)

−

RL =4 Ω; THD = 10%; VP = ±27 V

74(2)

−

THD

total harmonic distortion

Po = 1 W; note 3

fi = 1 kHz

−

0.01

0.05

fi = 10 kHz

−

0.1

−

Gv(cl)

closed-loop voltage gain

efﬁciency

Po = 30 W; fi = 1 kHz; note 4

−

Mono BTL application; note 5

output power

RL =8 Ω; THD = 0.5%; VP = ±25 V

100(2)

112

−

RL =8 Ω; THD = 10%; VP = ±25 V

128(2)

140

−

RL =4 Ω; THD = 0.5%; VP = ±17 V

80(2)

−

RL =4 Ω; THD = 10%; VP = ±17 V

100(2)

110

−

THD

total harmonic distortion

Po = 1 W; note 3

fi = 1 kHz

−

0.01

0.05

fi = 10 kHz

−

0.1

−

Gv(cl)

closed loop voltage gain

efﬁciency

Po = 30 W; fi = 1 kHz; note 4

−

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