參數(shù)資料
型號: S1M8836
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
中文描述: 分?jǐn)?shù)N射頻/整數(shù)N如果雙鎖相環(huán)
文件頁數(shù): 14/29頁
文件大小: 234K
代理商: S1M8836
S1M8836/37
FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
14
Programming Description
The S1M8836/37 can be programmed via the serial bus interface. The interface is made of 3 functional signals:
clock, data, and latch enable(LE). Serial data is moved into the 22-bit shift register on the rising edge of the
clock. These data enters MSB first. When LE goes HIGH, data in the shift register is moved into one of the 4
latches (by the 2-bit control).
DATA[21:2]
CTL[1:0]
LSB
MSB
Data Flow (MSB First)
Control
Bit Map (CTL[1:0])
Control Bits
DATA Location
CTL2(CTL[1])
CTL1(CTL[0])
0
0
WORD1
0
1
WORD2
1
0
WORD3
1
1
WORD4
Data Bit Map (DATA[21:2])
First Bit REGISTER BIT LOCATION Last Bit
21 20 19 18 17 16 15 14 13 12 11 10
IF_CTL_
WORD
(2Bit)
CMOS
IF_CP_
WORD
FoLD(4Bit)
RF_CP_WORD
RF_NB_CNTR(7Bit)
9
8
7
6
5
4
3
2
1
0 0
0
WORD1(W1)
RF_R
IF _R_CNTR(15Bit)
WORD2(W2)
IF_NB_CNTR(12Bit)
IF_NA_
CNTR(3Bit)
RF_NA_CNTR
(36:3Bit)
RF_NA_CNTR
(37:4Bit)
0 1
WORD3(W3)
1 0
WORD4(W4)
RF_CTL_
WORD
FRAC_CNTR(17Bit)
1 1
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S1M8836X01-G0T0 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
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