wb4916 |
2010-04-12 23:52 |
MC145162的说明书分翻译
帖子3的附件中,从p241开始,到最后,是别人已经翻译好的。(超星的pdg格式) 具体请参考: 《锁相环频率合成器motorola集成电路应用技术丛书》
由于以前没有玩过pll,ham-10m决定使用mc145162做频合。 理由:常见,参看程序多,也就是会的人,出了问题容易找到人问。 结果就找到了:bg2wah。 很热情的,帮忙校对了程序,并且给了mc145162中文说明书的扫描件。
第一页:
semiconductor technical data order this document by mc145162/d
60 mhz and 85 mhz universal programmable dual pll frequency synthesizers cmos
the mc145162 is a dual phase-locked loop (pll) frequency synthesizer especially designed for ct-1 cordless phone applications worldwide. this frequency synthesizer is also for any product with a frequency operation at 60 mhz or below.
the mc145162-1 is a high frequency derivative of the mc145162, for products with operating frequencies of 85 mhz or below.
the device features fully programmable receive, transmit, reference, and auxiliary reference counters accessed through an mcu serial interface. this feature allows this device to operate in any ct-1 cordless phone application. the device consists of two independent phase detectors for transmit and receive loops. a common reference oscillator, driving two independent reference frequency counters, provides independent reference frequencies for transmit and receive loops. the auxiliary reference counter allows the user to select an additional reference frequency for receive and transmit loops if required.
operating voltage range: 2.5 to 5.5 v operating temperature range: – 40 to + 75°c operating power consumption: 3.0 ma @ 2.5 v maximum operating frequency: mc145162 - 60 mhz @ 200 mv p–p, vdd = 2.5 v mc145162-1 - 85 mhz @ 250 mv p–p, vdd = 2.5 v three or four pins used for serial mcu interface din built-in mcu clock output with frequency of reference oscillator ÷3/÷4 power saving mode controlled by mcu mcuclk lock detect signal on-chip reference oscillator supports external crystals to 16.0 mhz reference frequency counter division range: 16 to 4095 auxiliary reference frequency counter division range: 16 to 16,383 transmit counter division range: 16 to 65,535 receive counter division range: 16 to 65,535 rev 3.1 2/98 (c) motorola, inc. 1998
半导体的技术手册 通过 mc145162/d 来订购本文
可达到60 mhz 和 85 mhz 的、通用的、可编程的双pll频率合成器 cmos(采用的工艺)
mc145162是一个双锁相环频率合成器,适用于全球范围内的ct-1制式的无绳电话。同样适用于需要60 mhz以下的频率其它产品。
mc145162-1是mc145162的高频版本,工作频率高达85 mhz。
通过mcu的串行接口,我们可以非常方便地操作它的完全可编程的接收、发射、参考、辅助参考计数器。正因为这样,所以它可使用于任何ct-1制式的无绳电话。本元件的发射环和接收环各有一个独立的相位检测器。一个共用的参考晶体,驱动两个独立的参考频率计数器,为发射环和接收环提供了独立的参考频率。如果有需要的话,辅助参考计数器可以让我们为发射环和接收环选择一个额外的参考频率。
工作电压范围:2.5 到 5.5 v。 工作温度范围:–40 到 +75℃ 功耗:3.0 ma @ 2.5 v最大工作频率: mc145162 - 60 mhz @ 200 mv p–p, vdd = 2.5 v mc145162-1 - 85 mhz @ 250 mv p–p, vdd = 2.5 v 可选3线或者4线的串行接口。 内置mcu时钟输出,值为参考晶体的频率÷3/÷4可选。 可由mcu的mcuclk脚控制省电模式 锁定检测信号。 内置的参考晶体,支持外置的晶体可达16.0 mhz 参考频率计数器的分频范围:16-4095 辅助参考频率计数器的分频范围:16-16,383 发射计数器的分频范围:16-65,535 接收计数器的分频范围:16-65,535 rev 3.1 2/98 (c) motorola, inc. 1998
第六页
pin descriptions
input pins
oscin/oscout reference oscillator input/output (pins 7, 8)
these pins form a reference oscillator when connected to an external parallel-resonant crystal. figure 6 shows the relationship of different crystal frequencies and reference frequencies for cordless phone applications in various countries. oscin may also serve as input for an externally generated reference signal which is typically ac coupled.
mcuclk system clock (pin 5)
this output pin provides a signal of the crystal frequency (oscout) divided by 3 or 4 that is controlled by a bit in the control register.
this signal can be a clock source for the mcu or other system clocks.
adin, din, clk, enb auxiliary data in, data in, clock, enable (pins 2, 3, 1, 4)
these four pins provide an mcu serial interface for programming the reference counter, the transmit-channel counter, and the receive-channel counter. they also provide various controls of the pll including the power saving mode and the programming format.
txps/ftx, rxps/frx transmit power save, receive power save (pins 13, 11)
for a normal application, these output pins provide the status of the internal power saving mode operation. if the transmit-channels counter circuitry is in power down mode, txps/ftx outputs a high state. if the receive-channels counter circuitry is in power down mode, rxps/frx is set high. these outputs can be applied for controlling the external power switch for the transmitter and the receiver to save mcu control pins.
in the tx/rx channel counter test mode, the txps/ftx and rxps/frx pins output the divided value of the transmit channel counter (ftx) and the receive channel counter (frx), respectively. this test mode operation is controlled by the control register. details of the counter test mode are in the tx/rx channel counter test section of this data sheet.
fin-t/fin-r transmit/receive counter inputs (pins 14, 9)
fin-t and fin-r are inputs to the transmit and the receive counters, respectively. these signals are typically driven from the loop vco and ac coupled. the minimum input signal level is 200 mv p-p @ 60.0 mhz.
output pins
txpdout/rxpdout transmit/receive phase detector outputs (pins 15, 10)
these are three-state outputs of the transmit and receive phase detectors for use as loop error signals (see figure 7 for phase detector output waveforms). phase detector gain is vdd/4 π volts per radian.
frequency fv > fr or fv leading: output = negative pulse. frequency fv < fr or fv lagging: output = positive pulse. frequency fv = fr and phase coincidence: output = high-impedance state.
note: fr is the divided-down reference frequency at the phase detector input and fv is the divided-down vco frequency at the phase detector input.
ld lock detect (pin 16)
the lock detect signal is associated with the transmit loop. the output at a high level indicates an out-of-lock condition (see figure 7 for the ld output waveform).
power supply
vdd positive power supply (pin 12)
vdd is the most positive power supply potential ranging from 2.5 to 5.5 v with respect to vss.
vss negative power supply (pin 6)
vss is the most negative supply potential and is usually connected to ground.
crystal ÷n value fr1→b fr2→c 11.150 mhz 446 6.25 khz 1.0 khz 11.150 mhz 223 12.5 khz 10.240 mhz 512 5.0 khz 12.000 mhz 600 5.0 khz
figure 6. reference frequencies for cordless phone applications of various countries
mc145162·mc145162-1 motorola
管脚定义:
输入脚
oscin/oscout 参考晶体输入/输出引脚(第7、8脚)
当连接到一个外接的并联谐振晶体的时候,这些引脚组成了一个参考振荡器。应用在各国的无绳电话时,图6显示了不同的晶体频率和参考频率的关系。作为一个外接产生的参考信号时,oscin可作为输入脚,通常是ac耦合的。
mcuclk 系统时钟脚(第5脚)
这个输出脚提供了一个3分频或者4分频的晶体频率信号(oscout),由控制寄存器中的专用位来配置。
本信号可以作为mcu或者其他系统的时钟源。
adin, din, clk, enb 辅助数据输入脚、数据输入脚、时钟脚、使能脚(第2、3、1、4脚)
这4个脚提供了一个mcu的串行接口,为参考计数器、发射通道计数器、接受通道计数器编程。他们还提供pll的各种控制功能,包括省电模式与编程格式。
txps/ftx, rxps/frx 发射省电模式、接收省电模式(第13、11脚)
正常情况下,这些输出引脚提供了内置节能模式工作的状态信息。假如发射通道计数器电路处于关机模式,txps/ftx脚被置高。假如接收通道计数器电路处于关机模式,rxps/frx脚被置高。这些输出脚被用来控制发射机和接收机的外置电源开关,以节省mcu的控制引脚。
在tx/rx通道计数器处于测试模式时, txps/ftx 与 rxps/frx引脚分别输出发射通道计数器(ftx)和接收通道计数器(frx)的分频值。控制寄存器控制这个测试模式。计数器的测试模式的详细资料,在本数据手册的 tx/rx 通道计数器测试部分。
fin-t/fin-r 发射/接收计数器输入引脚(第14、9脚)
fin-t 和 fin-r 被分别输入到发射与接收计数器。这些信号通常由vco环路驱动,且为ac耦合。最小的输入信号电平为 200 mv p-p @ 60.0 mhz。
输出引脚
txpdout/rxpdout 发射/接收相位检测器输出引脚(第15、10脚)
这些发射与接收相位检测器三态输出脚,被用作环路错误信号(参见图7:相位检测器的输出波形)。鉴相器增益为vdd/4 π v/弧度。
频率:fv > fr 或 fv 超前:输出 = 负脉冲 频率:fv < fr 或 fv 滞后:输出 = 正脉冲 频率:fv = fr 且同相: 输出 = 高阻抗状态
注意:fr为鉴相器输入脚经分压后的参考频率,而fv为鉴相器输入脚经分频后的vco频率。
ld 锁定检测脚(第16脚)
锁定检测信号与发射环相关联。输出脚为高电平表示失锁(参见图7:ld输出脚的波形)。
电源部分
vdd 电源正极(第12脚)
vdd对vss的范围为2.5-5.5 v。
vss 电源负极(第6脚)。
vss为电源负极,通常接地。
crystal ÷n value fr1→b fr2→c 11.150 mhz 446 6.25 khz 1.0 khz 11.150 mhz 223 12.5 khz 10.240 mhz 512 5.0 khz 12.000 mhz 600 5.0 khz
图6。各国无绳电话锁使用的参考频率。
mc145162·mc145162-1 motorola |
|