參數(shù)資料
型號(hào): 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(yè)數(shù): 10/18頁(yè)
文件大?。?/td> 207K
代理商: MSM7580
10/17
Semiconductor
MSM7580
PAD/MUTE Processing Timing
78.125
m
s
121.09
m
s
Internal MUTE Processing Timing
78.125
m
s
Internal 12dBPAD Processing Timing
78.125
m
s
BCLKA
SIA
SYNCA
MSB
LSB
PAD Mode; MUTE1 and MUTE 2 Timings PAD/MUTE="H"
SYNCP
MUTE1, 2
BCLKP
SOP
0dB transmit data
12dB loss transmit data
MSB
LSB
0dB transmit data
MUTE Mode; MUTE1 and MUTE 2 Timings PAD/MUTE="L"
SYNCP
MUTE1, 2
BCLKP
SOP
0dB transmit data
MUTE (idle channel state)
MSB
LSB
0dB transmit data
As mentioned above, PAD and MUTE processings are carried out according to the rising edge
of SYNCA.
Even if BCLK is not 128 kHz, these processings are performed in the absolute time counted from
the rising edge of SYNCA.
Therefore, MUTE1 and MUTE 2 pins must be controlled so as to cover there processsings.
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