參數(shù)資料
型號: ISL5217KI
廠商: INTERSIL CORP
元件分類: 無繩電話/電話
英文描述: Quad Programmable Up Converter
中文描述: TELECOM, CELLULAR, BASEBAND CIRCUIT, PBGA196
封裝: 15 X 15 MM, PLASTIC, BGA-196
文件頁數(shù): 8/43頁
文件大?。?/td> 766K
代理商: ISL5217KI
8
Data Modulation Path
Three data path options are provided, one for each
modulation format. The modulation format is selected using
FIR Control (0xd, 3:2). The modulation paths are defined in
the following subsections.
FIGURE 5. FIFO DATA AND ENABLE TIMING
CLK
WR
DLY DATA
DFF 1
DFF 2
DFF 3
DFF 4
REG1
FIFORDY
Write_FIFO
1
2
3
4
FIFO NEEDS
MORE DATA
FIFO NEEDS
MORE DATA
FIGURE 6. I AND Q FIFO BLOCK DIAGRAM
ZERO’S
A(2:0)
C
D
C
0XC, 10:8
ALMOST EMPTY
THRESHOLD
8:1 MUX
WR
A(000)
WRITE_FIFO
WRITE_FIFO
IFIFO(15:0)
QFIFO(15:0)
FIFORDY
DFF1
DFF2
DFF3
DFF4
0
FM ENABLED
All Registers are clocked at CLK unless shown otherwise.
2
SERIAL_WRITE_TO_FIFO
CLOCK SYNCHRONIZATION
4
SDB
SDC
SDD
SDA
2
0X11, 1:0
S
P
0X13, 9:0
0X12, 9:0
2
Q SAMPLE (15:0)
I SAMPLE (15:0)
0X1, 15:0
0X0, 15:0
P<15:0>
A<6:0>
0X11, 15
C
Μ
P
0X11, 3:2
P
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
8:1 MUX
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
R
E
G
>
0X11, 15
ISL5217
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