參數(shù)資料
型號: HDM8515P
廠商: Hynix Semiconductor Inc.
英文描述: Operational Amplifier (Op-Amp) IC; Number of Amplifiers:4; Package/Case:14-DIP; Op Amp Type:Low Power; Single Supply Voltage Min (+V):3V; Dual Supply Voltage Max (+/- V):16V; Amplifier Type:Operational; Mounting Type:Through Hole
中文描述: 的DVB /決策支持系統(tǒng)兼容接收器
文件頁數(shù): 48/75頁
文件大?。?/td> 272K
代理商: HDM8515P
48
6. Register Definitions
6.1 Write Registers
ADDRESS (Hex)
00, 01, 02
Symbol Timing Frequency
The 20 bit straight binary number in this field establishes the symbol
timing frequency utilized within the demodulator. Bit 7 of address 00 is
the MSB and bit 4 of address 02 is the LSB. If Rs is the symbol rate
and f
c
is the clock frequency, the value to be stored in this 20 bit field is
the integer portion of Rs(2
20
)/fc.
Symbol Timing Loop Gain Control
This field establishes the K1 and K2 gain values for the second order
loop filter of the symbol tracking loop. Bits 0,1,2 and 3 determine the
straight-through gain, and bits 4,5,6 and 7 determine the integration
path gain. The nominal value of this parameter in Hex, is expressed
below for different ranges of symbol rate to clock rate ratios:
Clock/Symbol Rate Value
2 FB
4 DA
8 B9
16 98
32 77
64 56
Carrier Frequency
The 20 bit, two's complement number in this field establishes the
nominal carrier frequency of the demodulator. Bit 7 of address 04 is the
MSB and bit 4 of address 06 is the LSB. The number in this 20 bit field
multiplied by the clock frequency divided by 2
20
is the carrier frequency
in Hertz. When the carrier sweep function is active, this value defines
the starting frequency.
03
04, 05, 06
相關(guān)PDF資料
PDF描述
HE6SF200 High efficiency super fast silicon rectifier diode
HE82005 8-BIT MICRO-CONTROLLER
HE82006 8-BIT MICRO-CONTROLLER
HE82015 8-BIT MICRO-CONTROLLER
HE83000 8-BIT MICRO-CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HDM9010 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer
HDM9020 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer
HDM9030 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer
HDM9040 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer
HDM9050 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer