TFA9810T NXP Semiconductors, TFA9810T Datasheet - Page 18

• 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
Table 11.
T
[1]
13. Quality specification
14. Application information
TFA9810_3
Product data sheet
Symbol
S/N
SVRR
amb
cs
Minimum value determined by R5, R10, R17, R22 equalling +1 % and R7, R14, R18, R20 equalling 1 %.
= 25 C; V
AC characteristics measured in typical application
Parameter
signal-to-noise ratio
supply voltage ripple
rejection
channel separation
P
14.1 Output power estimation
= 12 V; R
In accordance with SNW-FQ-611-E, ‘if this type is used as an audio amplifier’. The
number of the quality specification can be found in the Quality Reference Handbook. The
handbook can be ordered using the code 9398 510 63011.
For BTL configuration the output power just before clipping can be estimated using
Equation
Where,
The output power at 10 % THD can be estimated by using
Figure 26
THD = 10 % as a function of the BLT supply voltage for different load impedances.
P
L
•
•
•
•
•
o
BTL : P
10 %
= 8
V
R
R
R
P
P
o0.5 %
L
DSon
s
= supply voltage (V
= series resistance [ ]
= load resistance [ ]
=
f
1:
osc
o
1.25 P
and
= drain-source on-state resistance [ ]
0.5 %
= output power at the THD level of 0.5 % [W]
Conditions
V
V
P
= 550 kHz;
o
ripple
o
= 10 V (RMS); gain 20 dB
= 1 W; f
Figure 27
=
= 2 V
o
-------------------------------------------------------------------------------- -
0.5 %
----------------------------------------------------- -
R
Rev. 03 — 20 February 2008
i
L
(p-p)
= 1 kHz
Figure 33
+
below show the estimated output power at THD = 0.5 % and
; f
2
DDPx
i
= 1 kHz
R
R
2
L
DSon
unless otherwise specified.
V
R
SSPx
L
+
…continued
R
) [V]
s
V
[1]
P
Min
-
34
55
2
Equation
Typ
96
45
70
Audio amplifier 2 x 12 W
2:
Max
-
-
-
© NXP B.V. 2008. All rights reserved.
TFA9810
Unit
dB
dB
dB
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