Document
NJU26107
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■ General Description
Digital Signal Processor for TV ■Package
The NJU26107 is a high performance 24-bit digital signal processor. The NJU26107 provides ‘eala’ 3D Surround function, ‘eala BASS’ Dynamic Bass Boost function, SRS 3D, TruBass, 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 : eala(NJRC Original Surround), SRS 3D • Sound Enhancement: : ealaBASS (NJRC Original Dynamic Bass Boost), SRS TruBass • AGC • Tone Control • Master Volume / Balance control • LPF/HPF crossover network • WatchDog Clock Output
NJU26107FR1
- Hardware • 24bit Fixed-point Digital Signal Processing • Maximum System Clock Frequency : 38MHz Max. • Digital Audio Interface : 2 Input ports / 3 Output ports • Digital Audio Format : 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 : 2.5V • Input terminal : 3.3V Input tolerant • Package : QFP32-R1 (Pb-Free) • Two kinds of micro computer interface : I2C bus (standard-mode/100kbps) : Serial interface (4 lines: clock, enable, input data, output data)
The detail hardware specification is described in the “ NJU26100 Series Hardware Data Sheet”.
Ver.2006-11-27
-1-
NJU26107
www.DataSheet4U.com
■ Function Block Diagram
AD1/SDIN AD2/SSb
NJU26107
DSP ARITHMETIC UNIT SERIAL AUDIO INTERFACE BCK0 PROGRAM CONTROL L/R ” ‚ • ‚ • ‚ 24-BIT x 24-BIT MULTIPLIER L/R ” ‚ • ‚ • ‚ L/R ” ‚ • ‚ • ‚ L/R in LR0 SDO0 SDO1 SDO2 SDI0 SDI1 BCKI LRI WDC
SCL/SCK
SERIAL HOST INTERFACE
SDA/SDOUT
RESETb MCK XI XO TIMING GENERATOR
ALU
L/R in ADDRESS GENERATION UNIT
DATA RAM
FIRMWARE ROM
GPIO AND CONFIGURATION INTERFACE
SEL1
Fig. 1 NJU26107 Block Diagram
■ DSP Block Diagram
SDI0 SDI1
eala AGC SRS 3D TruBass
ealaBASS
BBE
Tone Control
Master Volume/ Balance
ealaBASS
LPF
SDO0
HPF
*Either "ealaBass" is selected.
SDO1
SDO2
Fig. 2 NJU26107Function Diagram
-2-
Ver.2006-11-27
NJU26107
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VDDR VDDR VDDC
18
24
23
22
21
20
19
SDI0 SDI1 TEST LRI BCKI MCK BCKO LRO
25
17
VDDC
VSSR
VSSR
VSSC
VSSC
■ Pin Configuration
16 26 15 27 14 28
WDC VSSC VDDC RESETb VSSO XO XI VDDO
NJU26107
13 12 11
31
30
29
10 32 9
1
2
3
4
5
6
7
SDO2
SDO1
SDO0
SEL1
Fig. 3 NJU26107 Pin Configuration
■ Pin Description
Table 1 Pin Description
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol SDO2 SDO1 SDO0 SEL1 *1 SCL/SCK SDA/SDOUT AD1/SDIN AD2/SSb VDDO XI XO VSSO RESETb VDDC VSSC WDC *2 I/O O O O I I I/O I I -I O -I --O Description Audio Data Output 2 L/R Audio Data Output 1 L/R HPF Audio Data Output 0 L/R LPF Select I2C or Serial bus I2C Clock / Serial Clock I2C I/O / Serial Output This pin requires a pull-up resistance. I2C Address / Serial Input I2C Address / Serial Enable OSC Power Supply +2.5V X’tal Clock Input OSC Output OSC GND RESET (active Low) Core Power Supply +2.5V Core GND Clock for Watch Dog Timer No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Symbol VDDC VSSC VDDR VSSR SDI0 SDI1 TEST LRI BCKI MCK BCKO LRO I/O Description Core Power Supply +2.5V Core GND I/O Power Supply +2.5V I/O GND Audio Data Input 0 L/R Audio Data Input 1 L/R Connect to GND LR Clock Input Bit Clock Input Master Clock Output Bit Clock Output LR Clock Output
SDA/SDOUT
AD1/SDIN
SCL/SCK
AD2/SSb
8
----I I I I I O O O
* I : Input, O : Output, I/O: Bi-directional *1 SEL1 : Input *2 WDC : Output
Ver.2006-11-27
-3-
NJU26107
www.DataSheet4U.com
■ Digital Audio Interface
The NJU26107 audio interface provides industry standard serial data formats of I2S, MSB-first left-justified or MSB-first right-justified. The NJU26107 audio interface provides two data inputs, SDI0, SDI1 and three data outputs, SDO0, SDO1, SDO2 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 Pin No. 25 26 Table 3 Pin No. 3 2 1
Serial Audio Input Pin Symbol Description SDI0 Audio Data Input 0 L / R SDI1 Audio Data Input 1 L / R
Serial Audio Output Pin Symbol Description SDO0 Audio Data Output 0 L / R LPF SDO1 Audio Data Output 1 L / R HPF SDO2 Audio Data Output 2 L / R
■ Host Interface
The NJU26107 can be controlled via Serial Host Interface (SHI) using either of two serial bus format : 4-Wire serial bus or I2C 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. 4 Symbol SEL1 Setting “Low” “High” Host Interface I2C bus 4-Wire serial bus
Table 5 Serial Host Interface Pin Description Symbol 4-Wire Serial bus Format Pin No. I2C bus Format (I2C bus / Serial) 5 SCL / SCK Serial Clock Serial Clock Serial Data Input/Output Serial Data Output 6 SDA / SDOUT (Open Drain Input/Output) (CMOS) 2 7 AD1 / SDIN I C bus a.