TFA9879HN/N1,157 NXP Semiconductors, TFA9879HN/N1,157 Datasheet - Page 51

• 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 25. Output power as a function of supply voltage
(W)
P
(1) THD+N = 1 %, R
(2) THD+N = 10 %, R
(3) THD+N = 1 %, R
(4) THD+N = 10 %, R
a. f
o
4
3
2
1
0
2
i
= 100 Hz, clip control on
3
L
L
Fig 24. Signal-to-noise ratio as a function of output power
L
L
= 8 Ω
= 4 Ω
= 8 Ω
= 4 Ω
4
(1) A-weighted
(2) 20 kHz brickwall filter
V
DDP
(4)
(3)
(2)
(1)
5
= 5 V, R
All information provided in this document is subject to legal disclaimers.
V
010aaa688
DDP
(V)
L
(dB)
S/N
= 8 Ω, reference signal: 3.5 V (RMS)
Rev. 02 — 15 October 2010
120
100
6
80
60
40
20
10
−2
Mono BTL class-D audio amplifier with digital input
10
(W)
−1
P
(1) THD+N = 1 %, R
(2) THD+N = 10 %, R
(3) THD+N = 1 %, R
(4) THD+N = 10 %, R
(1)
(2)
b. f
o
4
3
2
1
0
2
i
= 100 Hz, clip control off
1
3
P
o
010aaa687
(W)
L
L
L
L
= 8 Ω
= 4 Ω
= 8 Ω
= 4 Ω
4
10
(4)
(3)
(2)
(1)
5
TFA9879
© NXP B.V. 2010. All rights reserved.
V
010aaa689
DDP
(V)
6
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