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参数资料
| 型号： | ADF4106BRUZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC PLL FREQ SYNTHESIZER 16TSSOP |
| 标准包装： | 1,000 |
| 类型： | 时钟/频率合成器，RF |
| PLL： | 是 |
| 输入： | CMOS，TTL |
| 输出： | 时钟 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:1 |
| 差分 - 输入:输出： | 是/无 |
| 频率 - 最大： | 6GHz |
| 除法器/乘法器： | 无/无 |
| 电源电压： | 2.7 V ~ 3.3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
| 配用： | EVAL-ADF4106EBZ1-ND - BOARD EVAL FOR ADF4106 |
Data Sheet
ADF4106
Rev. E | Page 11 of 24
PHASE FREQUENCY DETECTOR (PFD) AND
CHARGE PUMP
The PFD takes inputs from the R counter and N counter
(N = BP + A) and produces an output proportional to the
phase and frequency difference between them. Figure 20 is a
simplified schematic. The PFD includes a programmable delay
element that controls the width of the antibacklash pulse. This
pulse ensures that there is no dead zone in the PFD transfer
function and minimizes phase noise and reference spurs. Two
bits in the reference counter latch, ABP2 and ABP1, control the
width of the pulse. See Table 7.
HI
D1
D2
Q1
Q2
CLR2
CP
U1
U2
UP
DOWN
ABP2
ABP1
CPGND
U3
R DIVIDER
PROGRAMMABLE
DELAY
N DIVIDER
VP
CHARGE
PUMP
02720-020
CLR1
Figure 20. PFD Simplified Schematic
MUXOUT AND LOCK DETECT
The output multiplexer on the ADF4106 allows the user
to access various internal points on the chip. The state of
MUXOUT is controlled by M3, M2, and M1 in the function
latch. Table 9 shows the full truth table. Figure 21 shows the
MUXOUT section in block diagram form.
Lock Detect
MUXOUT can be programmed for two types of lock detect:
digital lock detect and analog lock detect.
Digital lock detect is active high. When LDP in the R counter
latch is set to 0, digital lock detect is set high when the phase
error on three consecutive phase detector cycles is less than
15 ns. With LDP set to 1, five consecutive cycles of less than
15 ns are required to set the lock detect. It stays set high until a
phase error of greater than 25 ns is detected on any subsequent
PD cycle.
The N-channel, open-drain, analog lock detect should be
operated with an external pull-up resistor of 10 k nominal.
When lock is detected, this output is high with narrow, low-
going pulses.
02720-021
DGND
DVDD
CONTROL
MUX
ANALOG LOCK DETECT
DIGITAL LOCK DETECT
R COUNTER OUTPUT
N COUNTER OUTPUT
SDOUT
MUXOUT
Figure 21. MUXOUT Circuit
INPUT SHIFT REGISTER
The ADF4106 digital section includes a 24-bit input shift
register, a 14-bit R counter, and a 19-bit N counter, comprising a
6-bit A counter and a 13-bit B counter. Data is clocked into the
24-bit shift register on each rising edge of CLK. The data is
clocked in MSB first. Data is transferred from the shift register
to one of four latches on the rising edge of LE. The destination
latch is determined by the state of the two control bits (C2, C1)
in the shift register. These are the two LSBs, DB1 and DB0, as
shown in the timing diagram of Figure 2. The truth table for
these bits is shown in Table 5. Table 6 shows a summary of how
the latches are programmed.
Table 5. C1, C2 Truth Table
Control Bits
C2
C1
Data Latch
0
R Counter
0
1
N Counter (A and B)
1
0
Function Latch (Including Prescaler)
1
Initialization Latch
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| ADF4106BRUZ-RL | 功能描述:IC PLL FREQ SYNTHESIZER 16TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:- 标准包装:1,000 系列:Precision Edge® 类型:时钟/频率合成器 PLL:无 输入:CML，PECL 输出:CML 电路数:1 比率 - 输入:输出:2:1 差分 - 输入:输出:是/是 频率 - 最大:10.7GHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-VFQFN 裸露焊盘，16-MLF? 供应商设备封装:16-MLF?（3x3） 包装:带卷 (TR) 其它名称:SY58052UMGTRSY58052UMGTR-ND |
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