- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄9104 > ADF4252BCPZ-RL (Analog Devices Inc)IC PLL FREQ SYNTHESIZER 24LFCSP PDF資料下載
參數(shù)資料
| 型號(hào)： | ADF4252BCPZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 4/28頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC PLL FREQ SYNTHESIZER 24LFCSP |
| 標(biāo)準(zhǔn)包裝： | 5,000 |
| 類型： | 時(shí)鐘/頻率合成器（RF/IF），分?jǐn)?shù)-N，整數(shù)-N， |
| PLL： | 是 |
| 輸入： | CMOS，TTL |
| 輸出： | 時(shí)鐘 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 3:2 |
| 差分 - 輸入:輸出： | 是/無(wú) |
| 頻率 - 最大： | 3GHz |
| 除法器/乘法器： | 是/無(wú) |
| 電源電壓： | 2.7 V ~ 3.3 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤(pán)，CSP |
| 供應(yīng)商設(shè)備封裝： | 24-LFCSP-VQ（4x4） |
| 包裝： | 帶卷 (TR) |
| 配用： | EVAL-ADF4252EBZ2-ND - BOARD EVAL ADF4252 NO VCO/FILTER |
第1頁(yè)第2頁(yè)第3頁(yè)當(dāng)前第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)
REV. B
–12–
ADF4252
Phase Frequency Detector (PFD) and Charge Pump
The PFD takes inputs from the R counter and N counter and
produces an output proportional to the phase and frequency
difference between them. Figure 6 is a simplified schematic. The
antibacklash pulse. This pulse ensures that there is no dead zone
in the PFD transfer function and minimizes phase noise and
reference spurs.
+IN
D1
Q1
CLR1
U1
U3
DELAY
ELEMENT
HI
UP
D2
Q2
CLR2
U2
HI
DOWN
CHARGE
PUMP
CP
–IN
Figure 6. PFD Simplified Schematic
MUXOUT and Lock Detect
The output multiplexer on the ADF4252 allows the user to
access various internal points on the chip. The state of MUXOUT
is controlled by M4, M3, M2, and M1 in the master register.
Table I shows the full truth table. Figure 7 shows the MUXOUT
section in block diagram format.
LOGIC LOW
IF ANALOG LOCK DETECT
IF R DIVIDER OUTPUT
IF N DIVIDER OUTPUT
RF ANALOG LOCK DETECT
IF/RF ANALOG LOCK DETECT
IF DIGITAL LOCK DETECT
LOGIC HIGH
RF R DIVIDER OUTPUT
RF N DIVIDER OUTPUT
THREE STATE OUTPUT
RF DIGITAL LOCK DETECT
RF/IF DIGITAL LOCK DETECT
LOGIC HIGH
LOGIC LOW
MUX
CONTROL
MUXOUT
DVDD
DGND
Figure 7. MUXOUT Circuit
Lock Detect
MUXOUT can be programmed for two types of lock detect: digital
and analog. Digital is active high. The N-channel open-drain
analog lock detect should be operated with an external pull-up
resistor of 10 k
nominal. When lock has been detected, this
output will be high with narrow low going pulses.
Input Shift Register
Data is clocked in on each rising edge of CLK. The data is
clocked in MSB first. Data is transferred from the input register
to one of seven latches on the rising edge of LE. The destination
latch is determined by the state of the three control bits (C2, C1,
and C0) in the shift register. These are the three LSBs: DB2,
DB1, and DB0, as shown in Figure 1. The truth table for these
bits is shown in Table I. Table II summarizes how the registers
are programmed.
Table I. Control Bit Truth Table
C2
C1
C0
Data Latch
000
RF N Divider Reg
001
RF R Divider Reg
010
RF Control Reg
011
Master Reg
100
IF N Divider Reg
101
IF R Divider Reg
110
IF Control Reg
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS27513E16F6S | CONN RCPT 6POS BOX MNT W/SCKT |
| X9317TV8I-2.7 | IC XDCP 100TAP 100K 3WIRE 8TSSOP |
| X9317TV8I | IC XDCP 100TAP 100K 3WIRE 8TSSOP |
| VI-BWD-MV-S | CONVERTER MOD DC/DC 85V 150W |
| MS27513E16A6S | CONN RCPT 6POS BOX MNT W/SCKT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADF4350 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Wideband Synthesizer with Integrated VCO |
| ADF4350ABCPZ | 制造商:Analog Devices 功能描述:F-N WITH HIGH PERFORMANCE INTEGRATED VCO - Trays |
| ADF4350ABCPZ-RL7 | 制造商:Analog Devices 功能描述:F-N WITH HIGH PERFORMANCE INTE 制造商:Analog Devices 功能描述:F-N WITH HIGH PERFORMANCE INTEGRATED VCO - Tape and Reel |
| ADF4350BCPZ | 功能描述:IC SYNTH PLL VCO FN/IN 32LFCSP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:Precision Edge® 類型:時(shí)鐘/頻率合成器 PLL:無(wú) 輸入:CML，PECL 輸出:CML 電路數(shù):1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/是 頻率 - 最大:10.7GHz 除法器/乘法器:無(wú)/無(wú) 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤(pán)，16-MLF? 供應(yīng)商設(shè)備封裝:16-MLF?（3x3） 包裝:帶卷 (TR) 其它名稱:SY58052UMGTRSY58052UMGTR-ND |
| ADF4350BCPZ-RL | 功能描述:IC SYNTH PLL VCO FN/IN 32LFCSP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:Precision Edge® 類型:時(shí)鐘/頻率合成器 PLL:無(wú) 輸入:CML，PECL 輸出:CML 電路數(shù):1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/是 頻率 - 最大:10.7GHz 除法器/乘法器:無(wú)/無(wú) 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤(pán)，16-MLF? 供應(yīng)商設(shè)備封裝:16-MLF?（3x3） 包裝:帶卷 (TR) 其它名稱:SY58052UMGTRSY58052UMGTR-ND |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。