TDA8931 Datasheet, PDF (23/31 Pages) NXP Semiconductors – Power comparator 1 X 20 W

Philips Semiconductors
TDA8931
Power comparator 1 × 20 W
40
P_o
(W)
30
20
10
001aac016
(1)
(2)
(3)
(4)
22
G
(dB)
18
(1) (2)
14
001aab814
0
10
15
20
25
30
35
V_P (V)
(1) R_L = 4 Ω; THD = 10 %.
(2) R_L = 4 Ω; THD = 0.5 %.
(3) R_L = 8 Ω; THD = 10 %.
(4) R_L = 8 Ω; THD = 0.5 %.
Conditions: f_i = 1 kHz.
Fig 12. Output power as a function of supply voltage
10
10
10²
10³
10⁴
10⁵
f_i (Hz)
(1) R_L = 8 Ω.
(2) R_L = 4 Ω.
Conditions: V_P = 22 V; V_i = 100 mV.
Fig 13. Gain as a function of frequency
0
SVRR
(dB)
−20
001aac017
(1)
−40
(3)
(2)
(4)
−60
10
10²
10³
10⁴
10⁵
f_i (Hz)
(1) R_L = 8 Ω.
(2) R_L = 4 Ω.
(3) R_L = 4 Ω with feed forward network 470 kΩ /15 nF.
(4) R_L = 8 Ω with feed forward network 470 kΩ /15 nF.
Conditions: V_ripple = 2 V (p-p).
Fig 14. SVRR as a function of frequency
100
S/N
(dB)
90
001aac018
80
70
60
10^−2
10^−1
1
10
10²
P_o (W)
Conditions: V_P = 22 V; R_L = 4 Ω; including AES
20 kHz filter.
Fig 15. Signal-to-noise ratio as a function of output
power
9397 750 13847
Preliminary data sheet
Rev. 01 — 14 January 2004
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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