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參數(shù)資料
| 型號(hào)： | UPC1853 |
| 廠商： | NEC Corp. |
| 英文描述： | CONN SEALING FOR WALL RCPT #14 |
| 中文描述： | 矩陣環(huán)繞集成電路I2C總線(xiàn) |
| 文件頁(yè)數(shù)： | 30/76頁(yè) |
| 文件大?。?/td> | 544K |
| 代理商： | UPC1853 |
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μ
PC1853
30
Caution After power-on, be sure to initialize the subaddress data (see 4.2 Initialization).
The automatic increment function increments subaddress automatically.
Automatic increment function is ON :
Subaddress is incremented automatically.
If once slave address and subaddress are set, without setting the next
subaddress, data of the next subaddress can be transferred.
Subaddress is fixed.
Data of the fixed subaddress can be set repeatedly.
Automatic increment function is OFF:
The automatic increment ON/OFF bit is in the subaddress 01H to 08H. The increment of subaddress is controlled
individually by each automatic increment ON/OFF bit. As for 00H, subaddress is not incremented automatically (see
4.1 Subaddress List
).
For example, when the automatic increment function of subaddress 01H is ON and that of 02H is OFF, subaddress
is incremented from 01H to 02H automatically and is fixed on 02H.
In case of the automatic increment function of 08H is ON, subaddress is not incremented. If next data is transferred
after setting data of 08H (acknowledge bit: L), the acknowledge condition is changed into NAK state (acknowledge
bit: H). And the data transfer from the master CPU is stopped.
(9) Effect control
By the data of subaddress 08H, bit D3 to D0, the level of indirect sound signal (surround signal) added to the
original signal can be adjusted in 16 levels.
Fig. 4-9 Effect Control
D7
D6
D5
D4
D3
D2
D1
D0
Automatic
increment
Effect control
Effect control
Data
D3 ··· D0
Large
Small
1111
0000
08H
Subaddress
Normal
1000
Effect
Units of
phase
shifters
Surround
ON/OFF
Monaural/
stereo
selection
(10) Monaural/Stereo selection
By the data of subaddress 08H, bit D4, the surround mode can be selected (stereo mode or simulated mode).
Stereo mode
:
Surround signal processing for stereo source.
The phase of the difference between L-channel and R-channel signals is shifted and
added to the original signal.
Stereo sound simulation for monaural source.
The phase of the difference between the signal through HPF and the signal through LPF
is shifted, and the signals are added to the original signal. When the output frequency
characteristics of L-channel and R-channel signals become the form of comb, stereo
sound simulation can be realized.
Simulated mode :
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPC1857 | SOUND CONTROL IC WITH SURROUND AND I2C BUS |
| UPC1857ACT | SOUND CONTROL IC WITH SURROUND AND I2C BUS |
| UPC1857A | CONN SEALING FOR WALL RCPT #24 |
| UPC1876GT | US MTS DECODER |
| UPC1876 | US MTS DECODER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPC1853CT | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Surround-Sound Processor |
| UPC1853CT-01 | 制造商:NEC Electronics Corporation 功能描述: |
| UPC1853CT-02 | 制造商:NEC 制造商全稱(chēng):NEC 功能描述:MATRIX SURROUND IC WITH I2C BUS |
| UPC1854A | 制造商:NEC 制造商全稱(chēng):NEC 功能描述:I2C BUS-COMPATIBLE US MTS PROCESSING LSI |
| UPC1854ACT | 制造商:NEC 制造商全稱(chēng):NEC 功能描述:I2C BUS-COMPATIBLE US MTS PROCESSING LSI |
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