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參數資料
型號: UMA1016AT
廠商: NXP SEMICONDUCTORS
元件分類: XO, clock
英文描述: Frequency synthesizer for radio communication equipment
中文描述: PLL FREQUENCY SYNTHESIZER, 800 MHz, PDSO16
封裝: 3.90 MM, PLASTIC, MS-012AC, SOT-109-1, SOP-16
文件頁數: 12/16頁
文件大?。?/td> 85K
代理商: UMA1016AT
1995 Jul 12
12
Philips Semiconductors
Product specification
Frequency synthesizer for
radio communication equipment
UMA1016xT
APPLICATION INFORMATION
In a typical single-synthesizer application, the circuit is
connected as shown in Fig.6. Both analog and digital
supplies are decoupled to ground with HF and LF filter
capacitors. Correct oscillator operation requires capacitors
both to ground and to provide feedback across the
amplifier. Five signals are shown fed from a
microcontroller to provide serial programming, control
TDD frequency selection and initiate the power-down
mode. Other system logic may also be clocked by a crystal
frequency output from the synthesizer.
A passive 2nd-order loop filter giving a 3rd-order system
response is shown in Fig.6. Indicated values are intended
for rapid frequency switching (500
μ
s), 200 kHz channel
spacing (reference
÷
27) and breakthrough levels below
60 dB. The VCO output shows a power splitter supplying
both the synthesizer RF input and drive buffer for other
system components (RF amplifier in transmit mode, input
mixer in receive mode). The minimizing of loop filter node
leakage currents requires careful board layout.
Fig.6 Application diagram.
handbook, full pagewidth
MGA197 - 2
UMA1016XT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
P4
P3
P2
P1
P0
10
nF
47
μ
F
33
68 pF
33 pF
220
pF
5.4 MHz
REFCK
10 nF
VP
47
μ
F
VP
1
nF
VCO
12
12
RFout
100
82
330 pF
4.7
nF
18 k
相關PDF資料
PDF描述
UMA1016BT Frequency synthesizer for radio communication equipment
UMA1017M Low-voltage frequency synthesizer for radio telephones
UMA1018M Low-voltage dual frequency synthesizer for radio telephones
UMA1019AM Low-voltage frequency synthesizer for radio telephones
UMA1020 Low-voltage dual frequency synthesizer for radio telephones
相關代理商/技術參數
參數描述
UMA1016BT 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Frequency synthesizer for radio communication equipment
UMA1016XT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Serial-Input Frequency Synthesizer
UMA1017M 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage frequency synthesizer for radio telephones
UMA1018M 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage dual frequency synthesizer for radio telephones
UMA1018M/C3 制造商:NXP Semiconductors 功能描述:
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