TFA9879HN/N1,157 NXP Semiconductors, TFA9879HN/N1,157 Datasheet - Page 52

• Manufacturer Part Number: TFA9879HN/N1,157
• Description: IC AMP AUDIO DGTL MONO D 24HVQFN
• Manufacturer: NXP Semiconductors
• Type: Class Dr

Specifications of TFA9879HN/N1,157

• Output Type: 1-Channel (Mono)
• Package / Case: 24-VFQFN Exposed Pad
• Max Output Power X Channels @ Load: 2.75W x 1 @ 4 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Features: Depop, Digital Inputs, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Tone and Volume Control
• Mounting Type: Surface Mount
• Product: Class-D
• Output Power: 2.75 W
• Thd Plus Noise: 0.02 %
• Operating Supply Voltage: 3.7 V
• Supply Current: 5.7 mA
• Mounting Style: SMD/SMT
• Audio - Load Impedance: 4 Ohms, 8 Ohms
• Audio Load Resistance: 4 Ohms, 8 Ohms
• Input Signal Type: Serial
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
TFA9879
Product data sheet
Fig 26. Power dissipation as a function of output power
Fig 27. Efficiency as a function of output power
(%)
(W)
η
P
(1) V
(2) V
(1) V
(2) V
0.20
0.15
0.10
0.05
0.00
a. R
a. R
100
80
60
40
20
0
10
0
−3
DDP
DDP
DDP
DDP
L
L
= 8 Ω, f
= 8 Ω, f
= 3.7 V
= 5 V
= 3.7 V
= 5 V
10
0.5
−2
i
i
(2)
(1)
= 1 kHz, clip control off
= 1 kHz, clip control off
(1)
(2)
10
1
−1
1.5
1
All information provided in this document is subject to legal disclaimers.
P
P
010aaa694
010aaa695
o
o
(W)
(W)
Rev. 02 — 15 October 2010
10
2
Mono BTL class-D audio amplifier with digital input
(%)
(W)
η
P
(1) V
(2) V
(1) V
(2) V
b. R
b. R
100
0.5
0.4
0.3
0.2
0.1
0.0
80
60
40
20
0
10
0
−3
DDP
DDP
DDP
DDP
L
L
= 4 Ω, f
= 4 Ω, f
= 3.7 V
= 5 V
= 3.7 V
= 5 V
10
−2
i
i
= 1 kHz, clip control off
= 1 kHz, clip control off
1
10
−1
(2)
(1)
(1)
(2)
2
1
TFA9879
© NXP B.V. 2010. All rights reserved.
P
o
P
010aaa696
010aaa697
(W)
o
(W)
10
3
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