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參數(shù)資料
| 型號： | MSM7705-01 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 元件分類： | Codec |
| 英文描述： | 4ch Single Rail CODEC |
| 中文描述： | 4路單鐵編解碼器 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大?。?/td> | 144K |
| 代理商： | MSM7705-01 |
Semiconductor
MSM7705-01/02/03
17/20
BCLK (kHz)
64
128
256
512
1024
1544
2048
385.6
190.3
92.7
43.8
19.4
11.2
7.2
C
L
= 10 pF
192.8
95.2
46.3
21.9
9.7
5.6
3.6
C
L
= 20 pF
77.1
38.1
18.5
8.8
3.9
2.2
1.4
C
L
= 50 pF
38.6
19.0
9.3
4.4
1.9
1.1
0.7
C
L
= 100 pF
Rpull (k
W
)
Choice of Actual Resistor Value
If the calculated value is more than or equal to 100 k
W
, 100 k
W
should be employed. +10% of the
calculated value is within a tolerance, thus, for example, the value of 10 k
W
can be used for the
calculated value of 9.3 k
W
in the above examples.
Channel Crosstalk
The MSM7705 contains the 4-channel CODEC. The circuit and trace design and pin layout are
made to minimize crosstalk between channels inside the LSI device provided the following
should be taken into consideration.
Transmit side
The GSX1 – AIN2, AIN3, and AIN4 traces should not be kept closer.
The GSX2 – AIN1, AIN3, and AIN4 traces should not be kept closer.
The GSX3 – AIN1, AIN2, and AIN4 traces should not be kept closer.
The GSX4 – AIN1, AIN2, and AIN3 traces should not be kept closer.
AIN1, AIN2, AIN3, and AIN4, which are op-amp inverting input pins, have higher resistance,
therefore proximity of these lines to signal lines of other channels may cause crosstalk.
Receive side
The channel outputs AOUT1, AOUT2, AOUT3, and AOUT4 of the receive side are amplifier
outputs with lower resistance, thus crosstalk due to PCB traces is smaller. Nevertheless, the
PCB traces should not be run closer together and in parallel wherever possible.
Calculation Example for Typical Values
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| MSM7715 | Multi-Function Telecommunication LSI |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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: |
| MSM7705-02 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:4ch Single Rail CODEC |
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