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參數資料
| 型號： | TSA5060A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 1.3 GHz I2C-bus controlled low phase noise frequency synthesizer |
| 中文描述： | 1.3千兆赫的I2C控制的低相位噪聲頻率合成器總線 |
| 文件頁數： | 15/24頁 |
| 文件大小： | 119K |
| 代理商： | TSA5060A |
2000 Oct 24
15
Philips Semiconductors
Product specification
1.3 GHz I
2
C-bus controlled low phase
noise frequency synthesizer
TSA5060A
APPLICATION INFORMATION
An example of a typical application is given in Fig.4. In this application the VCO centre frequency is 600 MHz with a slope
of 18 MHz/V. The expected loop bandwidth is 13 kHz with a charge pump current of 1230
μ
A and a comparison
frequency of 166.67 kHz. Filter components need to be adapted to each application depending on the VCO
characteristics and the required performance of the loop.
handbook, full pagewidth
FCE719
BC847
AS
XT/COMP
XTAL
CP
SDA
SCL
P3
P2
DRIVE
GND
RFB
RFA
VCC
P1
P0
ADC
180 pF
10 nF
1 nF
1 nF
10 k
1 k
5 V
33 V
27 k
1.8 nF
tuning
voltage
VCO
output
VCO
MICRO-
CONTROLLER
47 nF
TSA5060A
1
2
3
4
5
6
7
8
18 pF
4 MHz
9
10
11
12
16
15
14
13
Fig.4 Typical application.
Loop bandwidth
Most of the applications that the TSA5060A are dedicated
for require a large loop bandwidth, in the order of a
few kHz to a few tens of kHz. The calculation of the loop
filter elements has to be done for each application, while it
dependsontheVCOslopeandphasenoise,aswellasthe
reference frequency and charge pump current.
A simulation of the loop can easily be done by using the
SIMPATA software from Philips.
Reference source
The TSA5060A is well suited to be used with a 4 MHz
crystal connected to pin XTAL. Philips crystal ordering
code 4322 143 04093 is recommended in this case.
It is however possible to use a crystal with a higher
frequency (up to 16 MHz) to improve the noise
performance. When choosing a crystal, care should be
taken to select a crystal able to withstand the drive level of
the TSA5060A without suffering from accelerated ageing.
It is also possible to feed pin XTAL with an external signal
between2 and 20 MHz,comingfromanexternaloscillator
or from the pin XT/COMP of another TSA5060A, when
more than one synthesizer is present in the same
application. The application given in Fig.5 should then be
used.
If the signal at pin XT/COMP is not used in an application,
the output should be switched off (bits XCE = 0, XCS = 0).
This pin should then be left open.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TSA5060AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:1.3 GHz I2C-bus controlled low phase noise frequency synthesizer |
| TSA5060AT/C1,518 | 功能描述:IC SYNTH FREQ 1.3GHZ 16-SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:- 產品變化通告:Product Discontinuation 04/May/2011 標準包裝:96 系列:- 類型:時鐘倍頻器，零延遲緩沖器 PLL:帶旁路 輸入:LVTTL 輸出:LVTTL 電路數:1 比率 - 輸入:輸出:1:8 差分 - 輸入:輸出:無/無 頻率 - 最大:133.3MHz 除法器/乘法器:是/無 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:管件 其它名稱:23S08-5HPGG |
| TSA5060AT/C2,118 | 制造商:NXP Semiconductors 功能描述: |
| TSA5060AT/C2,518 | 制造商:NXP Semiconductors 功能描述: |
| TSA5060ATS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:1.3 GHz I2C-bus controlled low phase noise frequency synthesizer |
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