Audio Amplifier. NTP8818 Datasheet

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NTP8818 Datasheet
Recommendation NTP8818 Datasheet
Part NTP8818
Description High Fidelity Power Driver Integrated Full Digital Audio Amplifier
Feature NTP8818; NEOFIDELITY NTP8818 High Performance, High Fidelity Power Driver Integrated Full Digital Audio Ampli.
Manufacture NeoFidelity
Datasheet
Download NTP8818 Datasheet




NeoFidelity NTP8818
NEOFIDELITY
NTP8818
High Performance, High Fidelity Power Driver Integrated Full Digital Audio Amplifier
Datasheet
ver. 1.2



NeoFidelity NTP8818
NEOFIDELITY, INC.
NTP8818
Power Driver Integrated Full Digital Audio Amplifier
General Description
The NTP8818 is a single chip full digital audio
amplifier including power stage for stereo
amplifier system. NTP8818 is integrated with
versatile digital audio signal processing
functions, high-performance, high-fidelity fully
digital PWM modulator and two high-power
full-bridge MOSFET power stages.
The NTP8818 receives digital serial audio
data with sampling frequencies of 32kHz,
44.1kHz, 48kHz, and 96kHz. It delivers 2 x 20
watts in stereo mode without heat sink.
The NTP8818 has a mixer and Bi-Quad filters
which can be used to implement the essential
audio signal processing functions like
loudness control, compensation of a loud
speaker response and parametric
equalization.
All the functions of the NTP8818 can be
controlled by internal register values via I2C
host interface bus.
Package
Features
2 CH Stereo (15W x 2 BTL)
Wide Operating Supply Voltage Range
(7V to 20V)
SDATA Generator (I2S output)
Floating Point Operation
24 Programmable Bi-Quad Filters
Speaker Compensation
LPF, HPF, DC Cut
Advanced Parametric Equalizer
3 Band Dynamic Range Control
Loudness Control
Protection Circuit
OCP(Over Current Protection)
OTP(Over Temperature Protection)
UVP(Under Voltage Protection)
BQ/DRC Check Sum
Vol/Soft Mute/Power Meter/NS Feedback
Smart PWM Switch on/off
High Efficiency
DC protection
DC cut filter
Coefficient memory checksum
Modulation Index check
NNCC 11
VVDDDD__PPLLLL 22
NNCC 33
GGNNDD 44
NNCC 55
DDVVDDDD 66
SSDDAATTAA 77
WWCCKK 88
NNCC 99
SSDDAA 1100
NTP8818
3300 OOUUTT11BB
2299 PPGGNNDD11BB
2288 BBSSTT11BB
2277 VVDDRR11
2266 NNCC
2255 AAGGNNDD
2244 VVDDRR22
2233 BBSSTT22AA
2222 PPGGNNDD22AA
2211 OOUUTT22AA
( 40 pin SAW QFN 6mm x 6mm Package )
Applications
LCD/OLED/UHD/FUD TV or Monitor TV
Docking Station
Mini-Component Audio Solution
Ordering Information
Product ID Package Type Pin
NTP8818
SAW QFN
40
Size
6 x 6mm
Disclaimer
NeoFidelity, Inc. reserves the right to make changes without notice in the product described in this datasheet including circuits, software
and ICs, described herein for the purpose of improvement of design and performance. NeoFidelity, Inc. assumes no responsibilities and
liabilities for the use of the product, conveys no license under any patent or copyright, and makes no warranties that the product is free
from patent or copyright infringement, unless otherwise specified.
Copyright NeoFidelity, Inc.
Document Number: DS8818 Rev1.2
Confidential.
Page 2
Revised 26 Feb 2019



NeoFidelity NTP8818
NEOFIDELITY, INC.
NTP8818
Power Driver Integrated Full Digital Audio Amplifier
Table of Contents
1. BLOCK DIAGRAM........................................................................................................................... 4
2. PIN ASSIGNMENTS ........................................................................................................................ 4
3. PIN DESCRIPTIONS........................................................................................................................ 5
4. CHARACTERISTICS AND SPECIFICATIONS ............................................................................... 6
4.1. Absolute Maximum Ratings ....................................................................................................... 6
4.2. Recommended Operating Conditions........................................................................................ 6
4.3. DC Electrical Characteristics ..................................................................................................... 6
4.4. Performance Specification ......................................................................................................... 6
4.5. Switching Characteristics I2C Control ..................................................................................... 7
4.6. Switching Characteristics Audio Interface .............................................................................. 7
5. I2C BUS OF NTP8818 ...................................................................................................................... 8
5.1. General Description of I2C Bus .................................................................................................. 8
5.1.1. Writing Operation .................................................................................................................... 8
5.1.2. Reading Operation.................................................................................................................. 9
5.1.3. I2C Glitch Filter ...................................................................................................................... 10
5.1.4. I2C Slave Address .............................................................................................................. 10
6. CLOCK, RESET & CONTROL ...................................................................................................... 11
6.1. System Clock ........................................................................................................................... 11
6.2. Timing Sequence 1 (recommend)............................................................................................ 11
6.2.1. Power-Up & Initialization Sequence ..................................................................................... 11
6.2.2. Power-Down Sequence ........................................................................................................ 11
6.3. Timing Sequence 2 (reference) ............................................................................................... 12
6.3.1. Power-Up & Initialization Sequence ..................................................................................... 12
6.3.2. Power-Down Sequence ........................................................................................................ 12
6.4. Sound On/Off Sequence.......................................................................................................... 12
7. AUDIO INPUT ................................................................................................................................ 13
7.1. I2S ............................................................................................................................................ 13
7.2. SDATA Generator .................................................................................................................... 13
8. MIXER ............................................................................................................................................ 15
9. PRE-PROCESSING ....................................................................................................................... 16
9.1. Bi-Quad Filter Chain ................................................................................................................ 16
9.2. Loudness Control..................................................................................................................... 17
9.3. Advanced Parametric Equalizer............................................................................................... 17
10. VOLUME & DYNAMIC RANGE CONTROL ................................................................................... 18
10.1. Master Volume Control .......................................................................................................... 18
10.2. Channel Volume Control ........................................................................................................ 18
10.3. Master Volume Fine Control .................................................................................................. 18
10.4. Mute and Soft Volume Change .............................................................................................. 18
10.5. Auto Mute ............................................................................................................................... 18
10.6. Dynamic Range Control......................................................................................................... 20
10.7. Power Meter........................................................................................................................... 20
11. OUTPUT INTERFACE ..................................................................................................................... 20
11.1. Output Configuration .............................................................................................................. 20
11.2. PWM Output Mapper ............................................................................................................. 20
11.3. Switching Output Mode .......................................................................................................... 20
11.4. Soft Start ................................................................................................................................ 21
12. DC PROTECTION ........................................................................................................................... 22
12.1 Memory Checksum ................................................................................................................. 22
12.2 Modulation Index Check ......................................................................................................... 23
12.3 Hard-wired DC cut .................................................................................................................. 23
13. TYPICAL APPLICATION SCHEMATICS ........................................................................................ 24
14. APPENDIX ....................................................................................................................................... 25
A. Configuration Register Summary........................................................................................... 25
B. Configuration Register Value Reference ............................................................................... 45
C. Typical Characteristics Graph ................................................................................................ 51
D. Outline and Mechanical Data................................................................................................. 63
Copyright NeoFidelity, Inc.
Document Number: DS8818 Rev1.2
Confidential.
Page 3
Revised 26 Feb 2019







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