參數(shù)資料
型號: TVP3026-250AMDN
廠商: Texas Instruments, Inc.
英文描述: Video Interface Palette
中文描述: 視頻接口面板
文件頁數(shù): 24/107頁
文件大?。?/td> 513K
代理商: TVP3026-250AMDN
2–10
2.4.2
The memory clock (MCLK) PLL may be used at frequencies up to 100 MHz. Appendix A provides optimal
register values for all frequencies that can be synthesized using the common 14.31818 MHz reference. The
MCLK PLL maximum output frequency of 100 MHz may not be exceeded. The equations for the VCO
frequency and for the PLL output frequency are the same as for the pixel clock PLL.
Memory Clock PLL
Provided:
FVCO
8
FREF
65
65
M
N
Minimum VCO Frequency
FVCO
Maximum VCO Frequency
(3)
Then the PLL output frequency is :
FPLL
FVCO
2P
(4)
The N-, M-, and P-value registers may be programmed to any value within the following limits:
40
1
0
N(5–0)
M(5–0)
P(1,0)
62
62
3
The bit assignments of the N-, M-, and P-value and the status register for the MCLK PLL are given in
Table 2–12. The bits shown as 0 or 1 must be written with these fixed values. PLLEN resets the PLL with
0 and enables the PLL to oscillate when set to 1. When set to 1, the LOCK status bit indicates that the PLL
has locked to the selected frequency. The remaining status register bits are for test purposes. The MCLK
PLL and loop clock PLL are further controlled by the MCLK/loop clock control register shown in Table 2–13.
Table 2–12. MCLK PLL Registers
REGISTER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
N value
1
1
N5
N4
N3
N2
N1
N0
M value
0
0
M5
M4
M3
M2
M1
M0
P value
PLLEN
0
1
1
0
0
P1
P0
Status
X
LOCK
X
X
X
X
X
X
X = do not care
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相關代理商/技術參數(shù)
參數(shù)描述
TVP3026-250APCE 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3026-250BMDN 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3026-250BPCE 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
TVP3026-250CPCE 制造商:Rochester Electronics LLC 功能描述:- Bulk
TVP3026-250MDN 制造商:Rochester Electronics LLC 功能描述:- Bulk