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參數(shù)資料
| 型號(hào)： | SP8861NAHP |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 1·3GHz Low Power Single-Chip Frequency Synthesiser |
| 中文描述： | 1.3 GHz的低功耗單芯片頻率合成器 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 200K |
| 代理商： | SP8861NAHP |
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SP8861
1·3GHz Low Power Single-Chip Frequency Synthesiser
The SP8861 is a low power single chip synthesiser
intended for professional radio applications, containing all the
elements (apart from the loop amplifier) required to build a PLL
frequency synthesis loop
The device is serially programmable by a three-wire data
highway and contains three independent buffers to store one
reference divider word and two local oscillator divider words.
A digital phase detector with two charge pumps,
programmable in phase and gain, are provided to improve
lock-up performance. The preset operation of the charge
pumps can be overwritten or the comparison frequencies
switched to output ports under control of the divider word. The
dual modulus ratio and so operating range is also
programmable through the same word.
A power down mode is incorporated as a battery economy
feature.
Supersedes version in the1996 Professional Products IC Handbook, HB2480 - 3.0
DS3640 - 4.0 April 1998
Fig. 1 Pin identification diagram (top view)
*F
and F
outputs are reversed by the phase
detector sense bit in the F1/F2 programming word. The
above diagram is correct when the sense bit is low. See
Table 2 and Fig. 7.
V
CC
1, V
EE
1 – preamplifier and prescaler supplies
V
CC
2, V
EE
2 – oscillator supplies
V
CC
3, V
EE
3 – charge pump 2 supplies
V
CC
4, V
EE
4 – ECL supplies
2
0·3V to
1
7V
2
55
°
C to
1
150
°
C
2
40
°
C to
1
85
°
C
2·5V p-p
FEATURES
I
Improved Digital Phase Detector Eliminates
‘Dead Band’ Effects
I
Low Operating Power, Typically 175mW
I
1·3GHz Operating Frequency
I
Complete Phase Locked Loop
I
High Input Sensitivity
I
Programmed throughThree-Wire Bus
I
Wide Range of Reference Division Ratios
I
Local Storage for Two Frequency Words, giving
Rapid Frequency Toggling
I
Programmable Phase Detector Gain
I
Power Down Mode
ABSOLUTE MAXIMUM RATINGS
Supply voltage
Storage temperature
Operating temperature
Prescaler input voltage
ORDERING INFORMATION
SP8861/NA/HP
4
3
2
1
28
27
26
12
13
14
15
16
17
18
5
6
7
8
9
10
11
25
24
23
22
21
20
19
PD2 OUTPUT
RPD
V
CC
3
GROUND
XTAL 1
XTAL2
V
EE
2
F
REF
*
POWER DOWN
V
EE
4
V
CC
4
V
CC
1
RF INPUT
RF INPUT
F
P
*
P
V
E
3
I
C
L
N
V
E
1
F
D
C
E
N
V
C
2
SP8861
HP28
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相關(guān)代理商/技術(shù)參數(shù) |
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| SP8902 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:5GHZ/ 2 Fixed Modulus Divider |
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