參數(shù)資料
型號(hào)： LC72146M
廠商： SANYO SEMICONDUCTOR CO LTD
元件分類： PLL合成/DDS/VCOs
英文描述： PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24
封裝： MFP-24
文件頁(yè)數(shù)： 9/22頁(yè)
文件大?。?/td> 157K
代理商： LC72146M
Charge Pump
The charge pump configuration is shown in Figure 9.
Figure 9 Charge Pump
When unlock is detected following a channel change, PDS (the sub-charge pump) operates. The value of R1 changes to
R1M // R1S (R1S
≈ 100 ), as shown in Figure 10, decreasing the low-pass filter time-constant and accelerating PLL
locking.
Figure 10 Charge Pump Connections
No. 4922-17/22
LC72146, 72146M, 72146V
PDC1
PDC0
PDS (sub-charge pump state)
0
—
High impedance
1
Charge pump operates (normal operation)
1
0
Charge pump operates (when unlocked)
DLC
PD1, PD0, PDS
0
Normal operation
1
Forced to low
PD1
PD0
A IN
PDS
R1S
DO, I/O-5 pin
PDC1
Unlock
Detector
and
Subcharge
Pump Cont.
Phase
Detector
Clock
fref
fvco/N
UL0
DZ0
DZ1
DLC
UL1
PDC0
R1S = 100
(typ)
(SUB)
(MAIN)
A OUT
PDO
PDS
R1S
R1M
V tune
VCC
相關(guān)PDF資料
PDF描述
LC72147V PLL FREQUENCY SYNTHESIZER, 180 MHz, PDSO24
LC72148V PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24
LC72191M PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24
LC7730M PULSE; RECTANGULAR, TIMER, PDSO16
LC8390M SPECIALTY ANALOG CIRCUIT, PDSO30
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC72146MA-AH 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
LC72146MHSQR-U-TRM-E 制造商:Sony Semiconductor Solutions Division 功能描述:
LC72146V 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
LC72147V 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems
LC72148V 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Electronic Tuning PLL Frequency Synthesizer for Car Stereo Systems
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*