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參數(shù)資料
| 型號： | PS2500AIT |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | XO, clock |
| 英文描述： | Low-Power Direct Digital Modulation Frequency Synthesizer |
| 中文描述： | 低功耗直接數(shù)字調(diào)制頻率合成器 |
| 文件頁數(shù)： | 22/28頁 |
| 文件大?。?/td> | 184K |
| 代理商： | PS2500AIT |
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PS2500 2.2 GHz Fractional-N Frequency Synthesizer
- 22 -
Philsar Semiconductor Inc.
146 Colonnade Road S.
Nepean, Ontario, Canada
K2E 7Y1
Tel: 613-274-0922
Fax: 613-274-0915
www.philsar.com
PMP-001-DS2 V1.2
General Synthesizer Registers
Figure 9: Hex5
Reference Frequency Dividers Register
(Write only)
This register configures the dual-programmable reference frequency dividers for the main and auxiliary
synthesizers.
The dual-programmable reference frequency dividers provide the reference frequencies to the phase
detectors by dividing the crystal oscillator frequency. The lower five bits hold the reference frequency
divide index for the main phase detector. The next five bits hold the reference frequency divide index for
the auxiliary phase detector. Divide ratios from 1 to 32 are possible for each reference frequency divider.
Values to be loaded are:
Main Reference Frequency Divider Index
= Desired main oscillator frequency division ratio - 1. Default
value on power up is 0, signifying that the reference frequency is not divided for the main phase detector.
Auxiliary Reference Frequency Divider Index
=
Desired Auxiliary oscillator frequency division ratio - 1.
Default value on power up is 0, signifying that the reference frequency is not divided for the auxiliary
phase detector.
Figure 10: Hex6
Phase Detectors Register
(Write only)
This register permits control of the gain for both phase detectors, and configuration of the
LD/PS
pins for
frequency power steering or lock detection.
Main Reference Frequency Divider Index
Auxiliary Reference Frequency Divider Index
A3
0
0
1
2
3
4
5
6
7
8
9
10
X
11
X
A0
1
A1
0
A2
1
Main Phase Detector Gain
Main Power Steering/Lock Detect Enable
Auxiliary Phase Detector Gain
Auxiliary Power Steering/Lock Detect Enable
A3
0
1
2
3
4
5
6
7
8
9
10
11
0
A0
A1
A2
1
1
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PS2501L-1M-F3 | NPN-OUTPUT DC-INPUT OPTOCOUPLER |
| PS2501L-1M-F4 | NPN-OUTPUT DC-INPUT OPTOCOUPLER |
| PS2501L-1N-E3 | NPN-OUTPUT DC-INPUT OPTOCOUPLER |
| PS2501L-1N-E4 | NPN-OUTPUT DC-INPUT OPTOCOUPLER |
| PS2501L-1N-F3 | NPN-OUTPUT DC-INPUT OPTOCOUPLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PS2500AIT-ES2/2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low-Power Direct Digital Modulation Frequency Synthesizer |
| PS2500GA | 制造商:SENSORTECHNICS 制造商全稱:Sensortechnics GmbH 功能描述:OEM silicon stainless steel pressure sensor |
| PS2500GC | 制造商:SENSORTECHNICS 制造商全稱:Sensortechnics GmbH 功能描述:OEM silicon stainless steel pressure sensor |
| PS2500VA | 制造商:SENSORTECHNICS 制造商全稱:Sensortechnics GmbH 功能描述:OEM silicon stainless steel pressure sensor |
| PS2500VC | 制造商:SENSORTECHNICS 制造商全稱:Sensortechnics GmbH 功能描述:OEM silicon stainless steel pressure sensor |
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