TDA8931
Philips Semiconductors
Power comparator 1 × 20 W
001aac016
001aab814
40
22
P
(W)
o
G
(dB)
(1)
30
18
(2)
(3)
(1)
(2)
20
10
0
(4)
14
10
2
3
4
5
10
15
20
25
30
P
35
10
10
10
10
10
V
(V)
f (Hz)
i
(1) RL = 4 Ω; THD = 10 %.
(2) RL = 4 Ω; THD = 0.5 %.
(3) RL = 8 Ω; THD = 10 %.
(4) RL = 8 Ω; THD = 0.5 %.
Conditions: fi = 1 kHz.
(1) RL = 8 Ω.
(2) RL = 4 Ω.
Conditions: VP = 22 V; Vi = 100 mV.
Fig 12. Output power as a function of supply voltage
Fig 13. Gain as a function of frequency
001aac017
001aac018
0
100
S/N
(dB)
SVRR
(dB)
90
80
70
60
−20
(1)
−40
(3)
(2)
(4)
−60
2
3
4
5
−2
−1
2
10
10
10
10
10
10
10
1
10
10
f (Hz)
i
P (W)
o
(1) RL = 8 Ω.
(2) RL = 4 Ω.
Conditions: VP = 22 V; RL = 4 Ω; including AES
20 kHz filter.
(3) RL = 4 Ω with feed forward network 470 kΩ /15 nF.
(4) RL = 8 Ω with feed forward network 470 kΩ /15 nF.
Conditions: Vripple = 2 V (p-p).
Fig 14. SVRR as a function of frequency
Fig 15. Signal-to-noise ratio as a function of output
power
9397 750 13847
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Preliminary data sheet
Rev. 01 — 14 January 2004
23 of 31
NXP [ NXP ]
