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参数资料
| 型号： | MC145158-2 |
| 厂商： | Motorola, Inc. |
| 英文描述： | PLL Frequency Synthesizer(PLL频率合成器) |
| 中文描述： | 锁相环频率合成器（PLL频率合成器） |
| 文件页数： | 19/26页 |
| 文件大小： | 423K |
| 代理商： | MC145158-2 |
MC145151–2 through MC145158–2
MOTOROLA
19
FREQUENCY CHARACTERISTICS
(Voltages References to VSS, CL = 50 pF, Input tr = tf =10 ns unless otherwise indicated)
VDD
V
– 40
°
C
25
°
C
85
°
C
Symbol
Parameter
Test Condition
Min
Max
Min
Max
Min
Max
Unit
fi
Input Frequency
(fin, OSCin)
R
≥
8, A
≥
0, N
≥
8
Vin = 500 mV p–p
ac coupled sine wave
3
5
9
—
—
—
6
15
15
—
—
—
6
15
15
—
—
—
6
15
15
MHz
R
≥
8, A
≥
0, N
≥
8
Vin = 1 V p–p ac coupled
sine wave
3
5
9
—
—
—
12
22
25
—
—
—
12
20
22
—
—
—
7
20
22
MHz
R
≥
8, A
≥
0, N
≥
8
Vin = VDD to VSS
dc coupled square wave
3
5
9
—
—
—
13
25
25
—
—
—
12
22
25
—
—
—
8
22
25
MHz
NOTE: Usually, the PLL’s propagation delay from fin to MC plus the setup time of the prescaler determines the upper frequency limit of the system.
The upper frequency limit is found with the following formula: f = P/(tP + tset) where f is the upper frequency in Hz, P is the lower of the dual
modulus prescaler ratios, tP is the fin to MC propagation delay in seconds, and tset is the prescaler setup time in seconds.
For example, with a 5 V supply, the fin to MC delay is 70 ns. If the MC12028A prescaler is used, the setup time is 16 ns. Thus, if the 64/65
ratio is utilized, the upper frequency limit is f = P/(tP + tset) = 64/(70 + 16) = 744 MHz.
VH= High Voltage Level.
VL= Low Voltage Level.
* At this point, when both fR and fV are in phase, the output is forced to near mid–supply.
NOTE: The PDout generates error pulses during out–of–lock conditions. When locked in phase and frequency the output is high
and the voltage at this pin is determined by the low–pass filter capacitor.
fR
REFERENCE
OSC
÷
R
fV
FEEDBACK
(fin
÷
N)
PDout
φ
R
φ
V
LD
*
VH
VL
VH
VL
VH
HIGH IMPEDANCE
VH
VL
VH
VL
VH
VL
VL
Figure 9. Phase Detector/Lock Detector Output Waveforms
相关PDF资料 |
PDF描述 |
|---|---|
| MC145158DW | Serial-Input PLL Frequency Synthesizer |
| MC145158P2 | Parallel-Input PLL Frequency Synthesizer |
| MC145158FN | Non-inverting Dual High-Speed MOSFET Drivers with Internal Regulator 8-PDIP |
| MC145158P | Serial-Input PLL Frequency Synthesizer |
| MC145158DW2 | Parallel-Input PLL Frequency Synthesizer |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC145158DW2 | 功能描述:IC SER-IN PLL FREQ SYNTH 16-SOIC RoHS:否 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:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| MC145158DW2R2 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| MC145159FN1R2 | 制造商:Motorola Inc 功能描述: |
| MC145159P1 | 制造商:Motorola Inc 功能描述: |
| MC14515BCP | 功能描述:编码器、解码器、复用器和解复用器 3-18V 4-Bit RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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