参数资料
型号: PNP-1050-L22
元件分类: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 250 MHz, QCC22
文件页数: 5/8页
文件大小: 182K
代理商: PNP-1050-L22
Attribute Definitions
PNP-1050-L22
FIGURE 4: FUNCTION SELECT (DB28 - DB31). After the data in FREQUENCY/CHANNEL (DB0 - DB23)
is multiplied by 10
n where the value of n is determined by the contents of MULTIPLIER (Figure 3), it is then
routed internally to the START, STOP, STEP, REF or CHANNEL registers based on the contents of FUNC-
TION SELECT as shown below.
DB31
DB30
DB29
DB28
FUNCTION SELECT
FS3
FS2
FS1
FS0
0
CHANNEL. Routes data from DB0-DB23 to the CHANNEL REGISTER.
0
1
START. Routes data from DB0-DB23 to the START REGISTER.
0
1
0
STOP. Routes data from DB0-DB23 to the STOP REGISTER.
0
1
STEP. Routes data from DB0-DB23 to the STEP REGISTER.
0
1
0
REFERENCE. Routes data from DB0-DB23 to the REFERENCE REGISTER
All FUNCTION SELECT values not shown above are reserved for factory use.
DBn
DB3
DB2
DB1
DB0
FREQUENCY/CHANNEL
FCn
FC3
FC2
FC1
FC0
0
1
0
1
0
2
0
1
3
0
1
15
DB23
FC23
0
FIGURE 2: FREQUENCY/CHANNEL (DB0 - DB23) This is a 24 bit string used to set the synthesizer’s
START Frequency, STOP Frequency, STEP Frequency, REF Frequency or CHANNEL number.
FIGURE 3: MULTIPLIER (DB24 - DB27) The data in FREQUENCY/CHANNEL (DB0-DB23) is multiplied
by 10
n where the value of n is determined by the contents of MULTIPLIER (DB24-DB27) as shown below.
DB27 DB26 DB25 DB24
MULTIPLIER
M3
M2
M1
M0
0
10
0 X contents of DB0-DB23
0
1
10
1 X contents of DB0-DB23
0
1
0
10
2 X contents of DB0-DB23
0
1
10
3 X contents of DB0-DB23
n
10
n X contents of DB0-DB23
相关PDF资料
PDF描述
PNP-1050-L22 PLL FREQUENCY SYNTHESIZER, 250 MHz, QCC22
PNP-1125B-L22 PLL FREQUENCY SYNTHESIZER, QCC22
PNP-1125C-L22 PLL FREQUENCY SYNTHESIZER, QCC22
PNP-1125A-L22 PLL FREQUENCY SYNTHESIZER, QCC22
PNP-1125-L22 PLL FREQUENCY SYNTHESIZER, QCC22
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