SA58637_15 Datasheet, PDF (15/22 Pages) NXP Semiconductors – 2 x 2.2 W BTL audio amplifier

NXP Semiconductors
SA58637
2 × 2.2 W BTL audio amplifier
14.4 General remarks
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.
14.5 SA58637BS PCB demo
The application demo board may be used for evaluation single-ended input, BTL
differential output configuration as shown in the schematic in Figure 3. The demo PCB
(Figure 16) is laid out for a 64.5 mm² (10 in²) heat spreader (total of top and bottom heat
spreader area).
SA58637_1
Product data sheet
Rev. 01 — 25 February 2008
© NXP B.V. 2008. All rights reserved.
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