參數(shù)資料
型號(hào)： UT7R995C-XCA
廠商： Aeroflex Inc.
英文描述： RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
中文描述： RadHard 2.5V/3.3V的200MHz的高速多相PLL時(shí)鐘緩沖器
文件頁(yè)數(shù)： 3/22頁(yè)
文件大?。?/td> 185K
代理商： UT7R995C-XCA
3
1.0 DEVICE CONFIGURATION:
The outputs of the UT7R995/C can be configured to run at fre-
quencies ranging from 6 MHz to 200 MHz. Each output bank
has the ability to run at separate frequencies and with various
phase skews. Furthermore, numerous clock division and multi-
plication options exist.
The following discussion and list of tables will summarize the
available configuration options for the UT7R995/C. Tables 1
through 12, are relevant to the following configuration discus-
sions.
Table 1. Feedback Divider Settings (N-factor)
Table 2. Reference Divider Settings (R-Factor)
Table 3. Output Divider Settings - Bank 3 (K-factor)
Table 4. Output Divider Settings - Bank 4 (M-Factor)
Table 5. Frequency Divider Summary
Table 6. Calculating Output Frequency Settings
Table 7. Frequency Range Select
Table 8. Multiplication Factor (MF) Calculation
Table 9. Signal Propagation Delays in Various Media
Table 10: Output Skew Settings
Table 11. PE/HD Settings
Table 12. Power Supply Constraints
1.1 Divider Configuration Settings:
The feedback input divider is controlled by the 3-level DS[1:0]
pins as indicated in Table 1 and the reference input divider is
controlled by the 3-level PD/DIV pin as indicated in Table 2.
Although the Reference divider will continue to operate when
the UT7R995/C is in the standard TEST mode of operation, the
Feedback Divider will not be available.
Notes:
1. When PD/DIV = LOW, the device enters power-down mode.
In addition to the reference and feedback dividers, the
UT7R995/C includes output dividers on Bank 3 and Bank 4,
which are controlled by 3F[1:0] and 4F[1:0] as indicated in Ta-
bles 3 and 4, respectively.
Notes:
1. These states are used to program the phase of the respective banks. Please see
Equation 1 along with Tables 8 and 10.
Notes:
1. These states are used to program the phase of the respective banks. Please see
Equation 1 along with Tables 8 and 10.
Each of the four divider options and their respective settings are
summarized in Table 5. By applying the divider options in Ta-
ble 5 to the calculations shown in Table 6, the user determines
the proper clock frequency for every output bank.
Table 1: Feedback Divider Settings (
N-factor
)
DS[1:0]
Feedback Input
Divider -
(N)
Permitted Output
Divider (K or M)
Connected to FB
LL
2
1 or 2
LM
3
1
LH
4
1, 2, or 4
ML
5
1 or 2
MM
1
1, 2, or 4
MH
6
1 or 2
HL
8
1 or 2
HM
10
1
HH
12
1
Table 2: Reference Divider Settings (
R-factor
)
PD/DIV
Operating Mode
Reference Input
Divider -
(R)
LOW
1
Powered Down
Not Applicable
MID
Normal Operation
2
HIGH
Normal Operation
1
Table 3: Output Divider Settings - Bank 3 (
K-factor
)
3F(1:0)
Bank 3 Output Divider -
(K)
LL
2
HH
4
Other
1
1
Table 4: Output Divider Settings - Bank 4 (
M-factor
)
4F[1:0]
Bank 4 Output Divider
(M)
LL
2
Other
1
1
Table 5: Frequency Divider Summary
Division
Factors
Available Divider Settings
N
1, 2, 3, 4, 5, 6, 8, 10, 12
R
1, 2
K
1, 2, 4
M
1, 2
相關(guān)PDF資料
PDF描述
UT7R995C-XCC RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XCX RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XPA RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XPC RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XPX RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UT7R995C-XCC 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XCX 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XPA 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XPC 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
UT7R995C-XPX 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard 2.5V/3.3V 200MHz High-Speed Multi-phase PLL Clock Buffer
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