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PDF NJU26040-16A Data sheet ( Hoja de datos )
| Número de pieza | NJU26040-16A | |
| Descripción | Digital Signal Processor | |
| Fabricantes | New Japan Radio | |
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NJU26040-16A
Digital Signal Processor for 2ch Speaker System
■ General Description
The NJU26040-16A is a high performance 24-bit digital signal processor.
The NJU26040-16A provides 3D Surround function, Stereo Enhancement function,
Equalizer function, Dynamic Bass Boost function, AGC/Limiter function. These kinds of
sound functions are suitable for docking speaker, boom box, mini/micro-component, TV,
and other speaker system.
■ Package
■ FEATURES
NJU26040V-16A
- Software
• 3D Surround: eala (NJRC Original)
• Stable center image and natural sound field
• Stereo Enhancement: eala Stereo Expander (NJRC Original)
• Reproduce the amazing stereo image even narrow distance between two speakers
• Equalizer
• 5band biquad filter
• Band1, 2, 3 : HPF/Parametric Equalizer/is selectable.
• Band4,5 : HPF/Parametric Equalizer/Bass/Treble is selectable.
• Master Volume
• Dynamic Bass Boost (NJRC Original)
• Two-independent-channel processing for high channel separation
• AGC/Limiter
• Clock for Watch Dog Timer
- Hardware
• 24bit Fixed-point Digital Signal Processing
• Maximum System Clock Frequency
• Digital Audio Interface
• Digital Audio Format
• Master / Slave Mode
• Power Supply
• Input terminal
• Package
• Micro computer interface
: 38MHz Max
: 3 Input port / 2 Output ports
: I2S 24bit, Left-justified, Right-justified, BCK : 32fs/64fs
: Master Mode MCK : 1/2 fclk, 1/3 fclk
ex. MCK = 384Fs(1/2) or MCK = 256Fs(1/3) at fclk=768Fs
: 3.3V
: 5V Input tolerant
: SSOP32 (Pb-Free)
: I2C bus (standard-mode/100kbps, Fast-mode/400kbps)
: Serial interface (4 lines: clock, enable, input data, output data)
The detail hardware specification is described in the “ NJU26040 Series Data Sheet (NJU26040_E_REL.pdf)”.
Ver.2008-03-06
-1-
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
NJU26040-16A
■ Digital Audio Interface
The NJU26040-16A audio interface provides industry standard serial data format of I2S. The NJU26040-16A audio
interface provides three audio data inputs, two audio data outputs as shown in table 2, table 3.
Table 2 Serial Audio Input Pin
Pin No. Symbol
Description
14 SDI0 Audio Data Input 0 L / R
13 SDI1 Audio Data Input 1 L / R
12 SDI2 Audio Data Input 2 L / R
Table 3 Serial Audio Output Pin
Pin No. Symbol
Description
19 SDO0 Audio Data Output 0 L / R
20 SDO1 Audio Data Output 1 L / R
■ Host Interface
The NJU26040-14A can be controlled via Serial Host Interface (SHI) using either of two serial bus formats:I2C bus or 4-Wire
serial bus.(Table 4) Data transfers are in 8-bit packets (1 byte) when using either format.
Table 4 Serial Host Interface Pin Description
Pin No.
29
Symbol
SEL
Setting
“Low”
“High”
Host Interface
I2C bus
4-Wire serial bus
Table 5 Serial Host Interface Pin Description
Pin No.
Symbol
(I2C bus / Serial)
I2C bus Format
2
SDA / SDOUT *
Serial Data Input/Output
(Open Drain Input/Output)
3 SCL / SCK * Serial Clock
4 AD1 / SDIN *
I2C bus address Bit1
5 AD2 / SSb *
I2C bus address Bit2
4-Wire Serial bus Format
Serial Data Output
(Open-Drain Output)
Serial Clock
Serial Data Input
Serial enable
Note : SDA pin is a bi-directional open drain.
This pin requires a pull-up resistance in both I2C bus and 4-Wire serial mode.
When the power supply (VDD= +3.3V) is supplied to NJU26040-16A, these pins become +5.0V
Input tolerant.
Ver.2008-03-06
-5-
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
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