TFA9810T NXP Semiconductors, TFA9810T Datasheet - Page 20

• Manufacturer Part Number: TFA9810T
• Description: Audio Amplifiers 2X15W BTL POWER COMPARATOR
• Manufacturer: NXP Semiconductors

Specifications of TFA9810T

• Product: Class-D
• Output Power: 15 W
• Available Set Gain: 19.7 dB
• Thd Plus Noise: 0.04 %
• Operating Supply Voltage: 12 V
• Maximum Power Dissipation: 2500 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 8 Ohms
• Input Bias Current (max): 1 uA
• Input Signal Type: Differential
• Minimum Operating Temperature: - 40 C
• Output Signal Type: Differential
• Supply Type: Single
• Supply Voltage (max): 20 V
• Supply Voltage (min): 8 V
• Output Type: 2-Channel Stereo
• Package / Case: SOIC-32
• Operational Class: Class-D
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 15x2@8OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.04@8Ohm@1W%
• Single Supply Voltage (typ): 12V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Power Dissipation: 2.5W
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 8V
• Single Supply Voltage (max): 20V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: SO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TFA9810T/N1,112

NXP Semiconductors
TFA9810_3
Product data sheet
14.3 Speaker configuration and impedance
14.4 Differential input
14.5 Single-ended input
Example:
A 4
running into current limiting. Current limiting (clipping) will avoid audio holes, but it causes
a sound distortion similar to voltage clipping.
For a flat-frequency response (second-order Butterworth filter) it is necessary to change
the low-pass filter components L
impedance.
Table 12.
For a high common-mode rejection ratio and a maximum of flexibility in the application,
the audio inputs of the application are fully differential.
The input configuration for a differential-input application is illustrated in
When using an audio source with a single-ended ‘out’, it is important to connect the IN1N
from the application board to the VSS/GND of the audio source (e.g. Audio DSP).
The input configuration for single-ended ‘in’ application is illustrated in
Configuration
BTL
Fig 28. Input configuration for differential input
•
•
•
R
R
R
L
DSon
s
speaker in BTL configuration can be used up to a supply voltage of 12 V without
= series resistance [ ].
= load resistance [ ].
= drain-source on-state resistance [ ].
Filter component values
Table 12
AUDIO
DSP
V
SS
shows the practical required values:
Rev. 03 — 20 February 2008
+
Impedance [ ]
4
6
8
LC
and C
IN1N
IN1P
LC
according to the speaker configuration and
L
10
16
22
LC
[ F]
OUT1N
OUT1P
Audio amplifier 2 x 12 W
C
1500
1000
680
010aaa021
LC
Figure
© NXP B.V. 2008. All rights reserved.
TFA9810
[nF]
Figure
29.
28.
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