參數(shù)資料
型號(hào)： MSM7705
廠商： OKI SEMICONDUCTOR CO., LTD.
元件分類(lèi)： Codec
英文描述： 4ch Single Rail CODEC
中文描述： 4路單鐵編解碼器
文件頁(yè)數(shù)： 6/20頁(yè)
文件大?。?/td> 144K
代理商： MSM7705
Semiconductor
MSM7705-01/02/03
6/20
XSYNC
Transmit synchronizing signal input.
PCM output signal from the DOUT1, DOUT2, DOUT3, and DOUT4 pins is output in
synchronization with this transmit synchronizing signal. This synchronizing signal triggers the
PLL and synchronizes all timing signals of the transmit section.
This synchronizing signal must be synchronized in phase with BCLK.
The frequency should be 8 kHz
±
50 ppm to guarantee the AC characteristics which are mainly
the frequency characteristics of the transmit section.
However, this device can be operated in the range of 6 kHz to 10 kHz unless the frequency
characteristics of the system used are strictly specified, but the electrical characteristics are not
guaranteed.
Setting this signal to logic "1" or "0" drives both transmit and receive circuits to power saving
state.
DOUT1
PCM signal output of channel 1 when the parallel mode is selected.
The PCM output signal is output from MSD in a sequential order, synchronizing with the rising
edge of the BCLK signal.
MSD may be output at the rising edge of the XSYNC signal, based on the timing between BCLK
and XSYNC.
This pin is in a high impedance state except during 8-bit PCM output. It is also in a high
impedance state during power-saving state or power-down state.
When the serial mode is selected, this pin is configured to be the output of serial multiplexed 4ch
PCM signal.
A pull-up resistor must be connected to this pin because it is an open drain output.
This device is compatible with the ITU-T recommendation on coding law and output coding
format.
The MSM7705-03 (A-law) outputs the character signal, inverting the even bits.
Input/Output Level
+Full scale
+0
–0
–Full scale
PCMIN/PCMOUT
MSM7705-02 (
m
-law)
MSD
1
0
0
0
1
1
1
1
0
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
MSM7705-03 (A-law)
MSD
1
0
1
0
1
1
0
1
0
1
0
1
0
0
1
0
1
0
0
1
0
1
1
0
1
0
0
1
0
1
1
0
相關(guān)PDF資料
PDF描述
MSM7705-01 4ch Single Rail CODEC
MSM7705-02 4ch Single Rail CODEC
MSM7705-03 4ch Single Rail CODEC
MSM7708-02 Serial Register Interface ADPCM CODEC for Telephone Recording(用于電話記錄的串行寄存器接口ADPCM編碼譯碼器)
MSM7712 Wireless LAN Baseband Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSM7705-01 制造商:OKI 制造商全稱(chēng):OKI electronic componets 功能描述:4ch Single Rail CODEC
MSM7705-01G3-2K 制造商:OKI Semiconductor 功能描述:4 Channels PCM Codec EOL211209
MSM7705-01G3-2K-7 制造商:ROHM Semiconductor 功能描述:
MSM7705-01GS-2K-7 制造商:ROHM Semiconductor 功能描述:
MSM7705-01GS-2KDR1 制造商:ROHM Semiconductor 功能描述:
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