TFA9879HN/N1,157 NXP Semiconductors, TFA9879HN/N1,157 Datasheet - Page 28

• 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
10.4.2 Serial interface control
Table 22.
Bit
15:12 reserved
11:10 MONO_SEL
9:6
5:3
2
I2S_FS
I2S_SET
SCK_POL
Symbol
Serial interface control registers (addresses 01h and 03h
All information provided in this document is subject to legal disclaimers.
R/W
Access Default
R/W
R/W
R/W
Rev. 02 — 15 October 2010
10
0
0000
1000
011
Mono BTL class-D audio amplifier with digital input
Description
mono selection:
sample frequency (f
I
enable SCK signal polarity inversion:
2
S format selection:
00: left channel; left channel content is amplified in
Amplifier mode
01: right channel; right channel content is amplified in
Amplifier mode
10: left + right channels; sum of left and right
channels, divided by two, is amplified in Amplifier
mode
11: reserved
0000: 8 kHz
0001: 11.025 kHz
0010: 12 kHz
0011: 16 kHz
0100: 22.05 kHz
0101: 24 kHz
0110: 32 kHz
0111: 44.1 kHz
1000: 48 kHz
1001: 64 kHz
1010: 88.2 kHz
1011: 96 kHz
1100 to 1111: reserved
000: reserved
001: reserved
010: MSB-justified data up to 24 bits
011: I
100: LSB-justified 16-bit data
101: LSB-justified 18-bit data
110: LSB-justified 20-bit data
111: LSB-justified 24-bit data
0: no SCK signal polarity inversion
1: SCK signal polarity inversion enabled
2
S data up to 24 bits
s
) of digital-in signal:
[1]
) bit description
TFA9879
© NXP B.V. 2010. All rights reserved.
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