JRC NJU26209 Manual
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JRC NJU26209 Manual

JRC NJU26209 Manual

Daep decoder
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General Description
The NJU26209 is a digital signal processor that provides the function of DAEP (Dolby
Automotive Entertainment Program).
A location of sound image forward is possible without a center speaker by all seats in the
car.
The applications of NJU26209 are suitable for Car Audio, Car Navigation system and other
audio products.
Features
-Software
DAEP (Dolby Automotive Entertainment Program)
Pro Logic II
Automotive (Advanced Surround Fader, Center Image Control)
Bass Management
Time Alignment
Master Volume
Input Trim
Channel Trim
-Hardware
24bit Fixed-point Digital Signal Processing
Maximum Clock Frequency
Digital Audio Interface
Digital Audio Format
Master / Slave Mode
Microcomputer Interface
2
I
C Bus (Standard-mode/100kbps, Fast-mode/400kbps)
4-Wire Serial Bus (4-Wire: Clock, Enable, Input data, Output data)
Operating Voltage
Input Terminal
Package
* The detail hardware specification of the NJU26209 is described in the " NJU26200 Series Hardware Data Sheet".
Ver.2008-12-04
DAEP Decoder
: 12.288MHz(Standard), built-in PLL Circuit
: 4 Input ports / 4 Output ports
2
: I
S 24bit,
left-justified,
: V
= V
= 1.8V
DD
DDPLL
: V
= 3.3V
DDIO
: +5.0V Input tolerant
: SSOP44 (Pb-Free)
right-justified,
BCK : 32fs/64fs
NJU26209
■
Package
NJU26209V
- 1 -

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Summary of Contents for JRC NJU26209

  • Page 1 Operating Voltage = 1.8V DDPLL = 3.3V DDIO Input Terminal : +5.0V Input tolerant Package : SSOP44 (Pb-Free) * The detail hardware specification of the NJU26209 is described in the “ NJU26200 Series Hardware Data Sheet”. Ver.2008-12-04 - 1 -...

  • Page 2: Hardware Block Diagram

    CLKOUT CLKOUT PROC PROC PROC PROC General I/O General I/O General I/O General I/O MUTEb MUTEb MUTEb MUTEb DATA DATA DATA DATA FIRMWARE FIRMWARE FIRMWARE FIRMWARE INTERFACE INTERFACE INTERFACE INTERFACE Fig. 1 NJU26209 Hardware Block Diagram Ver.2008-12-04 - 2 -...

  • Page 3: Function Block Diagram

    NJU26209 Function Block Diagram DAEP SDO1 Pro Logic II Time CPLII Phantom Center SDI0 Alignment Time SDO2 SDI1 Alignment Advanced Fader / Mixer SDO3 Time Pro Logic II SDI2 C/SW Alignment Bass Master Volume & Input Trimmer Management Channel Trim...

  • Page 4: Pin Configuration

    VSSIO SDI0 VDDIO SDO0 VDDIO SDO1 BCKI SDO2 SDO3 TEST BCKO NJU26209 MUTEb VDDIO SSOP44 PROC SDA/SDOUT VSSIO SCL/SCK VDDIO AD2/SSb AD1/SDIN VDDPLL TEST VSSPLL TEST TEST RESETb CLKOUT VDDIO VSSIO Fig. 3 NJU26209 Pin Configuration Ver.2008-12-04 - 4 -...

  • Page 5: Pin Description

    NJU26209 Pin Description Table 1 Pin Description Pin No. Symbol Function Audio Data Input ch.3 (LS/RS) SDI3 Audio Data Input ch.2 (C/SW) SDI2 Audio Data Input ch.1 (L/R) SDI1 Audio Data Input ch.0 (L/R) SDI0 LR Clock Input I/O Power Supply +3.3V...

  • Page 6: Audio Interface

    Audio Data Output 3 (LM/RM) Host Interface The NJU26209 can be controlled via Serial Host Interface (SHI) using either of two serial bus formats : I C bus or 4-Wire serial bus. Data transfers are in 8 bits packets (1 byte) when using either format. The SHI operates only in a SLAVE fashion.
  • Page 7 NJU26209 C Bus When the NJU26209 is configured for I C bus communication in SEL=”Low”, the serial host interface transfers data on the SDA pin and clocks data on the SCL pin. The SDA is an open drain pin requiring a pull-up resistance.

  • Page 8: Pin Setting

    NJU26209 operation. For example, a microcomputer monitors the WDC clock and checks the status of the NJU26209. When the WDC clock pulse is lost or not normal clock cycle, the NJU26209 does not operate correctly. Then reset the NJU26209 and set up the NJU26209 again. The WDC clock is able to be variable for 0msec to 100msec by command.
  • Page 9 Notes : In respect to detail command information, request New Japan Radio Co., Ltd. and permission of a licenser (Dolby) is required. Response of status NJU26209 returns the response of 4 types to the host controller. Table 10 Response of status Response...

  • Page 10: License Information

    License Information The Word “DOLBY”, “Pro Logic II”, DAEP and the double D mark are trademarks of Dolby Laboratories. The NJU26209 can only be delivered to licensees of Dolby Laboratories. Please refer to the licensing application manual issued by Dolby Laboratories.

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