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參數(shù)資料
| 型號： | S1M8831A |
| 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)： | 16/32頁 |
| 文件大小： | 248K |
| 代理商： | S1M8831A |
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S1M8831A/33
FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
16
Control Words
OSC
Control bits
IF_N[22]
Acronym
OSC
LOW (0)
HIGH (1)
Comments
Reference
oscillator input
control
IF
IF
RF and IF
Separate inputs;
OSCin: for IF,
OSCx: for RF
Normal operation
Power up
Asynchronous
power down
1X
Negative slope
Normal operation
Power up
Integer-N mode
Common input
through OSCin for
both RF and IF
IF counter reset
Power down
Synchronous
power down
8X
Positive slope
RF counter reset
Power down
Fractional-N
mode
Speedy Lock
mode
Voltage HIGH
Voltage HIGH
IF_CTL_WORD
IF_N[21]
IF_N[20]
IF_N[19]
IF_CNT_RST
PWDN_IF
PWDN
IF_CP_WORD
IF_N[18]
IF_N[17]
RF_N[23]
RF_N[22]
RF_N[21]
IF_CP_GAIN
IF_PFD_POL
RF_CNT_RST
PWDN_RF
Frac-N_SEL
IF charge pump
IF PFD
RF
RF
RF; PLL mode
selection
RF_CTL_WORD
CMOS
RF_N[20]
Speedy_Lock
CMOS output
RF_N[19]
RF_N[18]
RF_N[17:14]
OUT1
OUT0
Voltage LOW
Voltage LOW
Select 16-level charge pump current
(RF charge pump gain for control
codes in detail)
Negative slope
Select LDs and monitoring mode of
internal counters. (foLD control for
control codes in detail)
pin #23
pin #24
RF charge pump
RF_CP_WORD
RF_CP_LVL
RF_N[13]
RF_N[5:2]
RF_PFD_POL
foLD
Positive slope
RF PFD
Lock Detector
(LD), test mode
foLD
— Counter reset mode resets R & N counters.
— IF charge pump current can be selected to high current (8X) or low current (1X) mode.
— In the Speedy Lock mode, the OUT0 and OUT1 pins can be utilized as synchronous switches between active
low and tri-state. The Speedy Lock mode activates the OUT0 and OUT1 pins to be connected to GROUND
with a low impedance (< 150
) while a high charge pump gain (
≥
S 8X) is selected and otherwise to the
TRISTATE.
— For using a programmable CMOS output, the CMOS output bit(RF_N[20]=L) should be activated and then
the desired logic level should be programmed with the control bits RF_N[18] for OUT0 and RF_N[19] for
OUT1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S1M8831A/33 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FRACTIONAL-N RF/INTEGER-N IF DUAL PLL |
| S1M8831A01-G0T0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FRACTIONAL-N RF/INTEGER-N IF DUAL PLL |
| S1M8833 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FRACTIONAL-N RF/INTEGER-N IF DUAL PLL |
| S1M8833X01-G0T0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FRACTIONAL-N RF/INTEGER-N IF DUAL PLL |
| S1M8836 | 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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