参数资料
型号: SA58637BS
厂商: NXP Semiconductors N.V.
元件分类: 音频放大器
英文描述: 2 x 2.2 W BTL audio amplifier
封装: SA58637BS<SOT910-1 (HVQFN20)|<<http://www.nxp.com/packages/SOT910-1.html<1<Always Pb-free,;
文件页数: 3/22页
文件大小: 156K
代理商: SA58637BS
SA58637_1
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 25 February 2008
11 of 22
NXP Semiconductors
SA58637
2
× 2.2 W BTL audio amplier
14.2 BTL dynamic characterization
The total harmonic distortion-plus-noise (THD+N) as a function of frequency (Figure 8)
was measured with a low-pass lter of 80 kHz. The value of capacitor C3 inuences the
behavior of PSRR at low frequencies; increasing the value of C3 increases the
performance of PSRR.
Po = 0.5 W; Gv =20dB.
(1) VCC =6V; RL =8 .
(2) VCC = 7.5 V; RL =16 .
VCC =6V; VO =2V; RL =8 .
(1) Gv =30dB.
(2) Gv =20dB.
(3) Gv = 6 dB.
Fig 8.
Total harmonic distortion-plus-noise as a
function of frequency
Fig 9.
Channel separation as a function of frequency
VCC =6V; RS =0 ; Vripple = 100 mV.
(1) Gv =30dB.
(2) Gv =20dB.
(3) Gv = 6 dB.
Fig 10. Power supply rejection ratio as a function of frequency
002aac083
f (Hz)
10
105
104
102
103
1
101
10
THD+N
(%)
102
(1)
(2)
002aac084
f (Hz)
10
105
104
102
103
100
70
80
90
60
αcs
(dB)
(1)
(2)
(3)
002aac085
f (Hz)
10
105
104
102
103
60
40
20
PSRR
(dB)
80
(1)
(2)
(3)
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