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參數(shù)資料
| 型號(hào)： | SP8852EIGHCAR |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 2·7GHz Parallel Load Professional Synthesiser |
| 中文描述： | 2.7 GHz的并聯(lián)負(fù)載專業(yè)合成器 |
| 文件頁(yè)數(shù)： | 6/13頁(yè) |
| 文件大小： | 174K |
| 代理商： | SP8852EIGHCAR |
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6
SP8852E
1
5V
1k
+
1
44
SP8852E
7
8
9
10
11
12
13
14
15
16
17
2
3
4
5
6
43 42 41 40
23 24
22
21
20
19
18
25 26 27 28
39
38
37
36
35
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33
32
31
30
29
F
PD
1n
REF IN
F
REF
1
5V
1
μ
10n
2·2k
100p
1
5V
1n
1n
1n
VCO
LOOP FILTER
1
30V
SP8852E
27
28
33p
100p
10MHZ
Application using
crystal reference
CONTROL
MICRO
ADDRESS
STROBE
VALUES DEPEND
ON APPLICATION
OP27
ETC
*
*
*
*
Fig. 5 Typical application diagram
DESCRIPTION
Prescaler and AMcounter The programmable divider
chain is of A and M counter construction and therefore
contains a dual modulus front end prescaler, an A counter
which controls the dual modulus ratio and an M counter which
performs the bulk multi-modulus division. A programmable
divider of this construction has a division ratio of MN
1
Aand
a minimum integer steppable division ratio of N(N
2
1), where
Nis the prescaler value.
Data Entry and Storage
Data is loaded from the 16-bit bus into one of the internal
buffers by applying a positive pulse to the STROBE input. The
input bus can be driven from TTL or CMOS logic levels. When
STROBE is low, the inputs are isolated and the data can be
changed without affecting the programmed state.
The data is loaded into the RF buffer when the address
input is high and into the reference buffer when low. When the
STROBE input is taken high, the Aand M and reference
counters are reset and the input data is applied to the internal
storage register. When STROBE is again taken low, the data
on the input bus is stored in the selected register and the
counters released. The STROBE input is level triggered so
that if the data is changed whilst the input is high, the final
value before STROBE goes low will be stored.
In order to prevent disturbances on the VCO control voltage
when frequency changes are made, the STROBE input disables
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP8852 | 2·7GHz Parallel Load Professional Synthesiser |
| SP8852E | 2·7GHz Parallel Load Professional Synthesiser |
| SP8852EKGHCAR | 2·7GHz Parallel Load Professional Synthesiser |
| SP8854EKGHCAR | 2·7GHz Parallel Load Professional Synthesiser |
| SP8854 | MOSFET; Transistor Polarity:N Channel; Drain Source Voltage, Vds:30V; Continuous Drain Current, Id:20A; On-Resistance, Rds(on):7mohm; Rds(on) Test Voltage, Vgs:10V; Package/Case:TO-252; Leaded Process Compatible:Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP8852EKGHCAR | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2·7GHz Parallel Load Professional Synthesiser |
| SP8853 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:1·3GHz Professional Synthesiser |
| SP8853/A/DG | 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: |
| SP8853/A/HC | 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: |
| SP8853/AC/DG | 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: |
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