TDA8944JN1 NXP Semiconductors, TDA8944JN1 Datasheet - Page 14

• Manufacturer Part Number: TDA8944JN1
• Manufacturer: NXP Semiconductors

Specifications of TDA8944JN1

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 7x2@8OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.03@8Ohm@1W%
• Single Supply Voltage (typ): 12V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Power Dissipation: 18W
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 6V
• Single Supply Voltage (max): 18V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 17
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
9397 750 06861
Product specification
14.1.2 Power supply decoupling
Proper supply bypassing is critical for low-noise performance and high supply voltage
ripple rejection. The respective capacitor locations should be as close as possible to
the device and grounded to the power ground. Proper power supply decoupling also
prevents oscillations.
For suppressing higher frequency transients (spikes) on the supply line a capacitor
with low ESR – typical 100 nF – has to be placed as close as possible to the device.
For suppressing lower frequency noise and ripple signals, a large electrolytic
capacitor – e.g. 1000 F or greater – must be placed close to the device.
The bypass capacitor on the SVR pin reduces the noise and ripple on the midrail
voltage. For good THD and noise performance a low ESR capacitor is recommended.
idth
Fig 15. Printed-circuit board layout (single-sided); components view.
Rev. 02 — 14 February 2000
100 nF
17
1
1.5 nF
OUT2
OUT2
OUT1
OUT1
220 nF
220 nF
54 mm
10 F
2 x 7 W stereo BTL audio amplifier
1000 F
IN2
IN2
IN1
IN1
MUTE
ON
GND
V CC
© Philips Electronics N.V. 2000. All rights reserved.
MGL951
TDA8944J
56 mm
14 of 21