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參數(shù)資料
| 型號： | MSM7580 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | ITU-T G.721 ADPCM TRANSCODER |
| 中文描述： | ITU - T的G.721差分PcM碼器 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大小： | 207K |
| 代理商： | MSM7580 |
15/17
Semiconductor
MSM7580
(3) PCM
ADPCM, ADPCM
PCM during Transcode
(a) CODER Timing Diagram
1
2
3
4
5
6
1
2
3
4
7
8
MSB
LSB
MSB
LSB
T
sip
t4
A
PCM Input Data
PCM Output Data
104.2
m
s
119.8
m
s
t1
t2
MSB
LSB
LSB
MSB
t5
T
soa
MSB
LSB
MSB
ADPCM Input Data
T
sia
t6
t7
t3
T
sop
B
65.2
m
s
119.8
m
s
t2
t0
*
*
t5 is the rising edge of SYNCA.
*
t7 is the rising edge of SYNCP.
SYNCA
SYNCP
BLCKP
SIP
Internal (1)
Timing (2)
Timing (3)
SOA
SYNCA
BCLKA
SIA
Internal (6)
SYNCP
Timing (4)
Timing (5)
SOP
t4 is the falling edge of the 8th BCLK
counted from the rising edge of SYNCP.
*
t6 is the falling edge of the 4th BCLK
counted from the rising edge of SYNCA.
(b) DECODER Timing Diagram
(c) Internal Circuit Configuration
SIP
SYNCP
BCLKP
SOP
SOA
SYNCA
BCLKA
SIA
(1)
8bit
8bit
8bit
To CODER
From
DECODER
To
DECODER
SYNCA
From CODER
(2)
(5)
(3)
(4)
(6)
8bit
S
/
P
Latch
P
/
S
Latch
PLL
Latch
S
/
P
P
/
S
Latch
相關PDF資料 |
PDF描述 |
|---|---|
| MSM7581 | ITU-T G.721 4ch ADPCM TRANSCODER |
| MSM7582 | pie/4 Shift QPSK MODEM |
| MSM7582B | pie/4 Shift QPSK MODEM |
| MSM7583GS-BK | pie/4 Shift QPSK MODEM |
| MSM7583 | pie/4 Shift QPSK MODEM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7580GS-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM7581 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:ITU-T G.721 4ch ADPCM TRANSCODER |
| MSM7582 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pie/4 Shift QPSK MODEM |
| MSM7582B | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pie/4 Shift QPSK MODEM |
| MSM7583 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pie/4 Shift QPSK MODEM |
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