SA58635 NXP Semiconductors, SA58635 Datasheet - Page 22

• Manufacturer Part Number: SA58635
• Manufacturer: NXP Semiconductors

NXP Semiconductors
SA58635_1
Product data sheet
Table 14.
The 3 dB cut-off frequency is calculated by
Since the values of the input coupling capacitor and the input resistor affects the low
frequency performance of the audio amplifier, it is important to consider in the system
design.
Steps
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
f
–
3dB
=
Input resistance as a function of amplifier gain
-----------------------------
2π
R
28.468
28.450
28.421
28.375
28.298
28.177
27.995
27.697
27.302
26.982
26.587
26.163
25.550
24.910
24.183
23.264
22.173
21.560
20.947
20.334
19.607
18.880
18.267
17.420
16.572
15.725
14.998
14.207
13.480
12.754
11.906
11.058
×
i
(kΩ)
R
1
i
×
C
i
Rev. 01 — 26 March 2010
Gain (dB)
−58.986
−55.185
−51.083
−47.117
−42.942
−38.819
−34.884
−30.758
−27.155
−24.997
−22.858
−20.981
−18.751
−16.826
−14.967
−12.953
−10.893
−9.846
−8.861
−7.925
−6.868
−5.857
−5.034
−3.930
−2.857
−1.804
−0.913
0.052
0.939
1.831
2.884
3.958
2 × 25 mW class-G stereo headphone driver
Equation
1:
SA58635
© NXP B.V. 2010. All rights reserved.
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