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| 型号： | HSP50214BVCZ |
| 厂商： | Intersil |
| 文件页数： | 57/62页 |
| 文件大小： | 0K |
| 描述： | IC DOWNCONVERTER 14BIT 120-MQFP |
| 标准包装： | 24 |
| 功能： | 降频器 |
| RF 型： | AMPS，CDMA，GSM，TDMA |
| 封装/外壳： | 120-BQFP |
| 包装： | 托盘 |
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HSP50214B
CONTROL WORDS 64-95: DISCRIMINATOR COEFFICIENT REGISTERS (SYNCHRONIZED TO PROCCLK)
BIT
POSITION
31-10
FUNCTION
Discriminator FIR
Coefficient
DESCRIPTION
The discriminator FIR coefficients are 22-bit-two’s complement. If the filter is symmetric, the coefficients
are loaded from the center coefficient at address 64 to the last coefficient. If the filter is asymmetric the
coefficients C 0 to C N are loaded with C 0 in address 64 up to 64+N, where N is number of asymmetric
coefficients.
CONTROL WORDS 128-255: 255 PROGRAMMABLE COEFFICIENT REGISTERS
BIT
POSITION
31-10
FUNCTION
Programmable FIR
Coefficient
DESCRIPTION
The programmable FIR coefficients are 22-bit-two’s complement. If the filter is symmetric, the
coefficients are loaded from the center coefficient at address 128 to the last coefficient. If the filter is
asymmetric the coefficients C 0 to C N are loaded with C 0 in address 128 up to 128+N, where N is number
of asymmetric coefficients.
Real Filters are computed as:
Xn-k+1 Ck1 + Xn-k+2 Ck-2 + ... XnC0),
where C0 is the coefficient in address 128 and Xo is the oldest data sample.
Complex filters outputs are computed as follows:
Xn is the most recent data sample.
k is the number of samples = number of (complex) taps.
C0_re is the coefficient loaded into CW128.
C0_im is the coefficient loaded into CW129.
The convolution starts with the oldest data, times the last complex coefficient, and ends with the newest
data, times the first complex coefficient loaded.
Iout
= (-Xn-k+1_q * Ck-1_im + Xn-k+1_i * Ck-1_re).
+ (-Xn-k+2_q * Ck-2_im + Xn-1+2_i * Ck-2_re).
+ ...
+ (-Xn_q
* C0_im + Xn_i
* C0_re).
Qout = (Xn-k+1_i * Ck-1_im + Xn-k+1_q * Ck-1_re).
+ (Xn-k+2_i * Ck-2_im + Xn-1+2_q * Ck-2_re).
+ ...
57
+ (Xn_i
* C0_im + Xn_q
* C0_re).
FN4450.4
May 1, 2007
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HSP50214BVI | 功能描述:上下转换器 120L MQFP INDTEMP 14-BIT PROGRAMMABLE DOWNCONVERTER 65MSPS RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128 |
| HSP50214BVIZ | 功能描述:上下转换器 120L MQFP INDTEMP 14-BIT PROG DWNCNVRT RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128 |
| HSP50214VC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HSP50214VI | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HSP50215 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:DSP Modulator Evaluation Board |
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