NJU26207
- 1 -
Ver.2008-12-03
Dolby Volume Decoder
General Description
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.
Features
-Software
Dolby Volume (512FFT Window / 20Band)
Delay
Master Volume / Balance Control
Sampling Frequency : 32kHz, 44.1kHz, 48kHz
2 Input channels, 2 Output channels
-Hardware
24bit Fixed-point Digital Signal Processing
Maximum Clock Frequency
: 12.288MHz(Standard), built-in PLL Circuit
Digital Audio Interface
: 4 Input ports / 3 Output ports
Digital Audio Format
: I
2
S 24bit, left-justified, right-justified, BCK : 32fs/64fs
Master / Slave Mode
Microcomputer Interface
I
2
C Bus (Standard-mode/100kbps, Fast-mode/400kbps)
4-Wire Serial Bus (4-Wire: Clock, Enable, Input data, Output data)
Operating Voltage
: V
DD
= V
DDPLL
= 1.8V
: V
DDIO
= 3.3V
Input Terminal
: +5.0V Input tolerant
Package
: SSOP44 (Pb-Free)
* The detail hardware specification of the NJU26207 is described in the “ NJU26200 Series Hardware Data Sheet”.
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Package
NJU26207V
