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PDF NJU26040-08B Data sheet ( Hoja de datos )
| Número de pieza | NJU26040-08B | |
| Descripción | Digital Signal Processor | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU26040-08B
Digital Signal Processor for TV
■ General Description
■Package
The NJU26040-08B is a high performance 24-bit digital signal processor.
The NJU26040-08B provides SRS 3D, TruBass, FOCUS, BBE, AGC, Tone
Control, and LPF/HPF. These kinds of sound functions are suitable for TV,
mini-component, CD radio-cassette, speakers system and other audio products.
■ FEATURES
- Software
• 3D sound : SRS 3D
• Sound Enhancement: : SRS TruBass, SRS FOCUS
• BBE
• AGC
• Tone Control
• Master Volume / Balance control
• LPF/HPF crossover network
• WatchDog Clock Output
NJU26040V
- Hardware
• 24bit Fixed-point Digital Signal Processing
• Maximum System Clock Frequency : 38MHz Max.
• Digital Audio Interface
• Digital Audio Format
: 1 Input port / 2 Output ports
: I2S 24bit, Left- justified, Right-justified, BCK : 32/64fs
• Master / Slave Mode
: Master Mode MCK 1/2 fclk, 1/3 fclk
ex. MCK = 384Fs(1/2) or MCK = 256Fs(1/3) at fclk=768Fs
• Power Supply
: 3.3V
• Input terminal
: 5V Input tolerant
• Package
: SSOP32 (Pb-Free)
• Two kinds of micro computer interface : 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 Hardware Data Sheet”.
Ver.2007-03-13
-1-
1 page  
NJU26040-08B
■ Digital Audio Interface
The NJU26040-08B audio interface provides industry standard serial data formats of I2S, MSB-first left-justified or
MSB-first right-justified. The NJU26040-08B audio interface provides one data input, SDI0 and two data outputs,
SDO0, SDO1 as shown in table 2, table 3 and Fig.2. An audio interface input and output data format become the same
data format.
Table 2 Serial Audio Input Pin
Pin No. Symbol
Description
14 SDI0 Audio Data Input 0 L / R
Table 3 Serial Audio Output Pin
Pin No. Symbol
Description
19 SDO0 Audio Data Output 0 L / R LPF/HPF
20 SDO1 Audio Data Output 1 L / R
■ Host Interface
The NJU26040-08B 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.
Serial Host Interface Pin Description.(Table 5)
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 /SDOUT 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, these pins become
+5.0V Input tolerant.
Ver.2007-03-13
-5-
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet NJU26040-08B.PDF ] | |
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