參數(shù)資料
型號(hào)： TDA5101
廠商： INFINEON TECHNOLOGIES AG
英文描述： ASK Transmitter 315 MHz
中文描述： ASK發(fā)射315兆赫
文件頁(yè)數(shù)： 13/21頁(yè)
文件大小： 260K
代理商： TDA5101
Functional Description
3 - 5
TDA 5101A
Preliminary
Semiconductor Group
Confidential
Specification, May 1999
3.4
Functional Blocks
1. PLL Synthesizer
The Phase Locked Loop synthesizer consists of a voltage controlled oscillator
(VCO), an asynchronous divider chain, a phase detector, a charge pump and a
loop filter and is fully implemented on chip. The tuning circuit of the VCO con-
sisting of spiral inductors and varactor diodes is on chip, too. Therefore no
additional external components are necessary. The nominal center frequency
of the VCO is 630 MHz. The oscillator signal is fed both to the synthesizer
divider chain and to the power amplifier. The overall division ratio of the asyn-
cronous divider chain is 64. The phase detector is a Typ IV PD with charge
pump. The passive loop filter is realized on chip.
2. Crystal Oscillator
The crystal oscillator operates at a frequency of 9.84 MHz. It achieves a turn
on time of typically less than 1ms. To attend this, a NIC oscillator type is imple-
mented in the TDA 5101A.
The oscillator type has the property, that the input impedance is a negative
resistance in series to an inductance. Therefore the load capacitance of the
crystal CL (specified by the crystal supplier) is transformed to the capacitance
Cv.
CL:
ω
:
l:
crystal load capacitance for nominal frequency
angular frequency
inductivity of the crystal oscillator (typically 11μH)
The crystal oscillator signal is divided in the frequency by 4 and guided to the
open collector output CLKOUT to drive the clock input of a micro controller.
TDA 5101A
-R
I
f, CL
Cv
Cv
1
1
CL
-------
ω
2l
+
------------------------
=
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參數(shù)描述
TDA5101A 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK Transmitter 315 MHz
TDA5102 功能描述:射頻接收器 2.1-4 V ASK/FSK Transmitter IC RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
TDA5102GEG 制造商:Infineon Technologies AG 功能描述:RF Transmitter ASK/FSK 2.5V/3.3V 16-Pin TSSOP
TDA5102NT 制造商:Infineon Technologies AG 功能描述:RF Transmitter ASK/FSK 2.5V/3.3V 16-Pin TSSOP T/R
TDA5102-TDA5212_915_5 制造商:Infineon Technologies AG 功能描述:KIT SAMPLE FSK TX/RX 915MHZ
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