SA58631TK PHILIPS [NXP Semiconductors], SA58631TK Datasheet - Page 12

• Manufacturer Part Number: SA58631TK
• Description: 3 W BTL audio amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
SA58631
Preliminary data sheet
14.3 Single-ended application
14.4 General remarks
T
20 kHz.
The Single-Ended (SE) application diagram is shown in
The capacitor value of C3 in combination with the load impedance determines the low
frequency behavior. The total harmonic distortion + noise as a function of frequency was
measured with a low-pass filter of 80 kHz. The value of the capacitor C2 influences the
behavior of the PSRR at low frequencies; increasing the value of C2 increases the
performance of PSRR.
The frequency characteristics can be adapted by connecting a small capacitor across the
feedback resistor. To improve the immunity of HF radiation in radio circuit applications, a
small capacitor can be connected in parallel with the feedback resistor (56 kΩ); this
creates a low-pass filter.
amb
Fig 20. SE application circuit configuration
= 25 °C; V
Gain
1 µF
C1
V
=
I
CC
R2
------ -
R1
11 kΩ
R1
= 7.5 V; f = 1 kHz; R
Rev. 01 — 1 December 2005
R2
110 kΩ
C2
47 µF
MODE
SVR
IN−
IN+
4
3
2
1
L
= 8 Ω; G
SA58631
6
7
GND
v
= 20 dB; audio band-pass 20 Hz to
5
8
OUT−
OUT+
Figure
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
470 µF
100 nF
20.
C3
3 W BTL audio amplifier
SA58631
R L
100 µF
002aac041
V
CC
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