Philips Semiconductors
TDA8947J
4-channel audio amplifier
0
αcs
(dB)
−20
mce495
0
αcs
(dB)
−20
−40
−40
−60
−60
−80
−80
−100
10
102
103
104
105
f (Hz)
−100
10
102
103
VCC = 18 V; RL = 4 Ω.
a. SE
VCC = 18 V; RL = 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)
VCC = 18 V; Rsource = 0 Ω; Vripple = 300 mV (RMS).
A bandpass filter of 20 Hz to 22 kHz has been
applied.
Inputs short-circuited.
VCC = 18 V; Rsource = 0 Ω; Vripple = 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 14938
Product data sheet
Rev. 02 — 16 June 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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