參數(shù)資料
型號(hào): TDA8931
廠商: NXP Semiconductors N.V.
英文描述: Power comparator 1 X 20 W
中文描述: 功率比較1 × 20瓦
文件頁(yè)數(shù): 23/31頁(yè)
文件大小: 165K
代理商: TDA8931
9397 750 13847
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Preliminary data sheet
Rev. 01 — 14 January 2004
23 of 31
Philips Semiconductors
TDA8931
Power comparator 1
×
20 W
(1) R
L
= 4
; THD = 10 %.
(2) R
L
= 4
; THD = 0.5 %.
(3) R
L
= 8
; THD = 10 %.
(4) R
L
= 8
; THD = 0.5 %.
Conditions: f
i
= 1 kHz.
Fig 12. Output power as a function of supply voltage
(1) R
L
= 8
.
(2) R
L
= 4
.
Conditions: V
P
= 22 V; V
i
= 100 mV.
Fig 13. Gain as a function of frequency
001aac016
V
P
(V)
10
35
30
25
20
15
20
10
30
40
P
o
(W)
0
(1)
(2)
(3)
(4)
001aab814
14
18
22
G
(dB)
10
f
i
(Hz)
10
10
5
10
4
10
2
10
3
(1)
(2)
(1) R
L
= 8
.
(2) R
L
= 4
.
(3) R
L
= 4
with feed forward network 470 k
/15 nF.
(4) R
L
= 8
with feed forward network 470 k
/15 nF.
Conditions: V
ripple
= 2 V (p-p).
Fig 14. SVRR as a function of frequency
Conditions: V
P
= 22 V; R
L
= 4
; including AES
20 kHz filter.
Fig 15. Signal-to-noise ratio as a function of output
power
001aac017
40
20
0
SVRR
(dB)
60
f
i
(Hz)
10
10
5
10
4
10
2
10
3
(1)
(2)
(3)
(4)
001aac018
80
70
90
100
S/N
(dB)
60
P
o
(W)
10
2
10
2
10
10
1
1
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