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參數(shù)資料
| 型號： | S1T8825B01-R0B0 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 1.3GHZ DUAL PLL |
| 中文描述： | 1.3GHz的雙鎖相環(huán) |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 275K |
| 代理商： | S1T8825B01-R0B0 |
1.3GHZ DUAL PLL
S1T8825B
9
LOCK DETECTOR OUTPUT
When the phase comparator detects a phase difference, LD (Pin5) outputs
“
L
”
.
When the phase comparator locks, LD outputs
“
H
”
. On standby, it outputs
“
H
”
.
When T is less than 2/fosc (T<2 /fosc ) for more than three cycles of reference divider output as in the figure below,
the lock detector outputs
“
H
”
.
fosc: OSCI operating frequency (LOCAL OSC).
T: time difference of the pulse between reference divider output and channel divider output.
Number of divisions by reference divider
fosc
PROGRAMMABLE STANDBY MODE (SB1, SB2, SBR)
Standby mode can be controlled by 3-control bits such as SB1, SB2 and SBR. SB1 and SB2 can control the
standby mode of channel 1 and channel2. The
“
SBR
”
bit can do ON / OFF control of reference divider.
Figure 3. Lock Detector Output
Control Bit
Standby Mode State
SB1
SB2
SBR
CH1
CH2
REF
Mode Status
0
0
×
ON
ON
ON
Inter locking Mode
0
1
×
ON
OFF
ON
CH1 Locking Mode
1
0
×
OFF
ON
ON
CH2 Locking Mode
1
1
0
OFF
OFF
ON
REF On Mode
1
1
1
OFF
OFF
OFF
Standby Mode
B
A
T
T<2/fosc
Reference
Divider output
Channel
Divider output
Charge pump
output
Lock detector
output
A =
(s)
B =
(s)
2
fosc
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S1T8825X01-R0B0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:1.1GHZ DUAL PLL |
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| S1TFCGY | 制造商:Hubbell Wiring Device-Kellems 功能描述:FRPT, TILE FLNG. SYSTEM 1, GRAY |
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