NJU26207V NJRC [New Japan Radio], NJU26207V Datasheet

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NJU26207V

Manufacturer Part Number
NJU26207V
Description
Dolby Volume Decoder
Manufacturer
NJRC [New Japan Radio]
Datasheet
The NJU26207 is a digital signal processor that provides the function of Dolby Volume.
Dolby Volume solves volume level difference among channels, input sources and etc.
The mix balance is reproduced by high or low volume level.
The applications of NJU26207 are suitable for Digital TV, Front Surround Speaker and
speakers system.
-Software
-Hardware
Ver.2008-12-03
General Description
Features
* The detail hardware specification of the NJU26207 is described in the “ NJU26200 Series Hardware Data Sheet”.
24bit Fixed-point Digital Signal Processing
Maximum Clock Frequency
Digital Audio Interface
Digital Audio Format
Master / Slave Mode
Microcomputer Interface
Operating Voltage
Input Terminal
Package
Dolby Volume (512FFT Window / 20Band)
Delay
Master Volume / Balance Control
Sampling Frequency : 32kHz, 44.1kHz, 48kHz
2 Input channels, 2 Output channels
I
4-Wire Serial Bus (4-Wire: Clock, Enable, Input data, Output data)
2
C Bus (Standard-mode/100kbps, Fast-mode/400kbps)
: V
: V
: +5.0V Input tolerant
: SSOP44 (Pb-Free)
DD
DDIO
= 3.3V
= V
Dolby Volume Decoder
: 12.288MHz(Standard), built-in PLL Circuit
: 4 Input ports / 3 Output ports
: I
DDPLL
2
S 24bit,
= 1.8V
left-justified,
right-justified,
BCK : 32fs/64fs
Package
NJU26207
NJU26207V
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NJU26207V Summary of contents

Page 1

... Package : SSOP44 (Pb-Free) * The detail hardware specification of the NJU26207 is described in the “ NJU26200 Series Hardware Data Sheet”. Ver.2008-12-03 Dolby Volume Decoder : 12.288MHz(Standard), built-in PLL Circuit : 4 Input ports / 3 Output ports 24bit, left-justified, right-justified 1.8V DDPLL = 3.3V NJU26207 ■ Package NJU26207V BCK : 32fs/64fs - 1 - ...

Page 2

NJU26207 Hardware Block Diagram AD1/SDIN AD1/SDIN AD1/SDIN AD1/SDIN SCL/SCK SCL/SCK SCL/SCK SCL/SCK SERIAL SERIAL SERIAL SERIAL HOST HOST HOST HOST INTERFACE INTERFACE INTERFACE INTERFACE SDA/SDOUT SDA/SDOUT SDA/SDOUT SDA/SDOUT RESETb RESETb RESETb RESETb MCK MCK MCK MCK TIMING TIMING TIMING TIMING ...

Page 3

Pin Configuration SDI3 1 SDI2 2 SDI1 3 SDI0 4 LRI 5 VDDIO 6 BCKI 7 VSS 8 VDD 9 TEST 10 MUTEb 11 WDC 12 PROC 13 VSSIO 14 VDDIO 15 SEL 16 VDDPLL 17 VSSPLL 18 VSS 19 ...

Page 4

NJU26207 Pin Description Table 1 Pin Description Pin No. Symbol 1 SDI3 2 SDI2 3 SDI1 4 SDI0 5 LRI 6 VDDIO 7 BCKI 8 VSS 9 VDD 10 TEST * 11 MUTEb * 12 WDC * 13 PROC * ...

Page 5

Audio Interface The NJU26207 audio interface provides industry serial data formats of I Right-justified. The NJU26207 audio interface provides four data inputs, SDI0, SDI1, SDI2 and SDI3, and three data outputs, SDO0, SDO1 and SDO2 as shown in table 2 ...

Page 6

NJU26207 Bus When the NJU26207 is configured for I data on the SDA pin and clocks data on the SCL pin. The SDA is an open drain pin requiring a pull-up resistance. Pins AD1 and AD2 are ...

Page 7

Pin setting The NJU26207 operates default command setting after resetting the NJU26207. In addition, the NJU26207 restricts operation at power on by setting PROC pin and MUTEb pin. These pins are input pin. However, these pins operate as bi-directional pins. ...

Page 8

NJU26207 Firmware Command Table Host processor can control the NJU26207 via I summarizes the available user commands. Table 9 Command Table No. Command Description 1 Set Task Command 2 System State Command 3 Sample rate Select Command 4 Smooth Control ...

Page 9

License Information The Word “DOLBY”, “Dolby Volume” and the double D mark are trademarks of Dolby Laboratories. The NJU26207 can only be delivered to licensees of Dolby Laboratories. Please refer to the licensing application manual issued by Dolby Laboratories. Ver.2008-12-03 ...

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