TDA8947J Datasheet, PDF (14/24 Pages) NXP Semiconductors – 4-channel audio amplifier (SE: 1 W to 25 W; BTL: 4 W to 50 W)

Philips Semiconductors
TDA8947J
4-channel audio amplifier
0
α_cs
(dB)
−20
MCE495
0
α_cs
(dB)
−20
−40
−40
−60
−60
−80
−80
−100
10
10²
10³
10⁴
10⁵
f (Hz)
−100
10
10²
10³
V_CC = 18 V; R_L = 4 Ω.
a. SE
V_CC = 18 V; R_L = 8 Ω.
b. BTL
Fig 10. Channel separation as function of frequency (no bandpass filter applied).
MCE496
10⁴
10⁵
f (Hz)
0
SVRR
(dB)
−20
MCE497
0
SVRR
(dB)
−20
MCE498
−40
−40
−60
−60
−80
10
10²
10³
10⁴
10⁵
f (Hz)
−80
10
10²
10³
10⁴
10⁵
f (Hz)
V_CC = 18 V; R_source = 0 Ω; V_ripple = 300 mV (RMS).
A bandpass filter of 20 Hz to 22 kHz has been applied.
Inputs short-circuited.
V_CC = 18 V; R_source = 0 Ω; V_ripple = 300 mV (RMS).
A bandpass filter of 20 Hz to 22 kHz has been applied.
Inputs short-circuited.
a. SE
b. BTL
Fig 11. Supply voltage ripple rejection as function of frequency.
9397 750 10779
Preliminary data
Rev. 01 — 06 February 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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