參數(shù)資料
型號: MC145157-2
廠商: Motorola, Inc.
英文描述: PLL Frequency Synthesizer(PLL頻率合成器)
中文描述: 鎖相環(huán)頻率合成器(PLL頻率合成器)
文件頁數(shù): 8/26頁
文件大小: 423K
代理商: MC145157-2
MC145151–2 through MC145158–2
8
MOTOROLA
Figure 2. 666–Channel, Computer–Controlled, Mobile Radiotelephone Synthesizer
for 800 MHz Cellular Radio Systems
LOCK DETECT SIGNAL
R1
+
RECEIVER FIRST L.O.
825.030
844.980 MHz
(30 kHz STEPS)
MC12017
÷
64/65 PRESCALER
NOTE 6
MC145152–2
NOTE 5
MC
LD
A0
A5
N9
OSCin
VDD
VSS
OSCout
RA2
RA1
φ
R
φ
V
fin
VCO
RA0
N0
+ V
R1
R2
C
R2
C
“1”
“1”
“1”
NO CONNECTS
CHANNEL PROGRAMMING
NOTES:
1. Receiver 1st I.F. = 45 MHz, low side injection; Receiver 2nd I.F. = 11.7 MHz, low side injection.
2. Duplex operation with 45 MHz receiver/transmit separation.
3. fR = 7.5 kHz;
÷
R = 2048.
4. Ntotal = N 64 + A = 27501 to 28166; N = 429 to 440; A = 0 to 63.
5. MC145158–2 may be used where serial data entry is desired.
6. High frequency prescalers (e.g., MC12018 [520 MHz] and MC12022 [1 GHz]) may be used for higher frequency VCO and fref
implementations.
7. The
φ
R and
φ
V outputs are fed to an external combiner/loop filter. See the Phase–Locked Loop — Low–Pass Filter Design page for
additional information. The
φ
R and
φ
V outputs swing rail–to–rail. Therefore, the user should be careful not to exceed the common mode
input range of the op amp used in the combiner/loop filter.
REF. OSC.
15.360 MHz
(ON–CHIP OSC.
OPTIONAL)
X2
X4
NOTE 6
X4
NOTE 6
TRANSMITTER
MODULATION
TRANSMITTER SIGNAL
825.030
844.980 MHz
(30 kHz STEPS)
RECEIVER 2ND L.O.
30.720 MHz
NOTE 7
MC145152–2 Data Sheet Continued on Page 15
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC145158-2 制造商:Motorola Inc 功能描述:
MC145158DW2 功能描述:IC SER-IN PLL FREQ SYNTH 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器,PLL,頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:*
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: