參數(shù)資料
型號: MSM7584C
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: π/4 Shift QPSK MODEM(π/4移動QPSK調(diào)制解調(diào)器/ADPCM編碼譯碼器)
中文描述: π/ 4移位的QPSK調(diào)制解調(diào)器(π/ 4移動的QPSK調(diào)制解調(diào)器/差分PcM編碼譯碼器)
文件頁數(shù): 30/57頁
文件大?。?/td> 321K
代理商: MSM7584C
Semiconductor
MSM7584C
30/57
TIMING DIAGRAM
(Modem)
Transmit Data Input Timing
Transmit Clock (TXCO) Output Timing (When CR14 - B6 = 1)
Transmit Burst Position (BSTO) Output Timing (When CR14 - B6 = 0)
Figure 10 Modem Transmit Side (Modulator Side) Digital I/O Timing
Receive Side Data I/O Timing
t
XSM
t
DSM
t
DHM
1
2
3
N-2
N-1
N
N+1
TXCI [TXCO*]
(384 kHz)
TXW
TXD
1
2
3
N-2
N
N-1
t
XSM
*TXCO in brackets [ ] is when CR14 - B6 = 1
t
XDM1
1
2
3
4
5
6
7
8
9
10
t
XDM1
TXCI
(3.84 MHz)
TXCO
(384 kHz)
t
XDM2
TXCI
(384 kHz)
TXW
t
XDM3
1
2
8
9
N
N+1
N+17
N+18
N+19
BSTO
t
XDM4
RPR
RXC
RXD
t
RDM2
AFC
RCW
SLS
t
RMS4
t
RMS3
t
RMS2
t
RMS1
t
RDM1
t
RWM
Figure 11 Receive Side (Demodulator Side) Digital I/O Timing
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