參數(shù)資料
型號(hào)： HSP43216VC-52Z
廠商： Intersil
文件頁(yè)數(shù)： 19/20頁(yè)
文件大?。?/td> 0K
描述： IC HALFBAND FILTER 100-MQFP
標(biāo)準(zhǔn)包裝： 66
濾波器類型： 半帶
濾波器數(shù)： 4
電源電壓： 4.75 V ~ 5.25 V
安裝類型： 表面貼裝
封裝/外殼： 100-BQFP
供應(yīng)商設(shè)備封裝： 100-MQFP（14x20）
包裝： 托盤
8
FN3365.10
October 6, 2008
Operational Modes
Decimate By 2 Filter Mode (Mode1-0 = 00)
The concept of operation for Decimate by Two Filter mode is
most easily understood by comparing the 7 tap transversal
filter implementation to the equivalent polyphase
implementation. The transversal implementation is shown in
Figure 5.
By inspecting the sum-of-products for the decimated output
in Figure 5, it is seen that even indexed input samples are
always multiplied by the even filter coefficients and the odd
samples are always multiplied by the odd coefficients. This
computational partitioning is realized in the polyphase
implementation shown in Figure 6.
In the polyphase implementation, the input data is broken into
even and odd sample streams which are processed by a set
of polyphase filters running at one half of the input data rate.
These filters are designated as even or odd tap filters
depending upon whether the coefficients were derived from
the even or odd indexed coefficients of the original transversal
filter. This architecture only produces the outputs which are
not discarded by the decimation process. NOTE: Since the
only non-zero tap for a halfband filter is the center tap,
the Odd Tap Filter reduces to a delay and multiply
operation.
The operation of the HSP43216 in Decimate by Two mode is
analogous to the polyphase implementation in Figure 6. In
this mode, the internal data paths are routed as shown in
Figure 7A and Figure 7B. The different data flows depend on
whether internal or external multiplexing has been selected
using the INT/EXT control input. In either case, an input data
stream is decomposed into even and odd sample streams
which are then routed to the even and odd tap polyphase
filters. The output of each polyphase filter is summed and
output via AOUT0-15.
TABLE 5. OUTPUT ROUNDING CONTROL
RND
2-0
ROUND FUNCTION
000
Round output to 8-bits, AOUT15-8 and BOUT15-8, zero
lower bits.
001
Round output to 9-bits, AOUT15-7 and BOUT15-7, zero
lower bits.
010
Round output to 10-bits, AOUT15-6 and BOUT15-6,
zero lower bits.
011
Round output to 11-bits, AOUT15-5 and BOUT15-5,
zero lower bits.
100
Round output to 12-bits, AOUT15-4 and BOUT15-4,
zero lower bits.
101
Round output to 14-bits, AOUT15-2 and BOUT15-2,
zero lower bits.
110
Round output to 16-bits, AOUT15-0 and BOUT15-0.
111
Zero all outputs.
C0 C1 C2 C3 C4 C5 C6
X3,X2,X1,X0
Y(0) = X0(C0)+X1(C1)+X2(C2)+X3(C3)+X4(C4)+X5(C5)+X6(C6)
Y(1) = X1(C0)+X2(C1)+X3(C2)+X4(C3)+X5(C4)+X6(C5)+X7(C6)
Y(2) = X2(C0)+X3(C1)+X4(C2)+X5(C3)+X6(C4)+X7(C5)+X8(C6)
Y(3) = X3(C0)+X4(C1)+X5(C2)+X6(C3)+X7(C4)+X8(C5)+X9(C6)
...,Y1,Y0
2
..,Y4,Y2,Y0
Indicates samples discarded by decimation process
FIGURE 5. TRANSVERSAL IMPLEMENTATION OF
DECIMATE BY 2 HALFBAND FILTER
C0 C2 C4 C6
...,X4,X2,X0
Y(0) = X0(C0)+X1(C1)+X2(C2)+X3(C3)+X4(C4)+X5(C5)+X6(C6)
Y(1) = X2(C0)+X3(C1)+X4(C2)+X5(C3)+X6(C4)+X7(C5)+X8(C6)
..,Y2,Y1,Y0
C1 C3 C5
R
E
G
ODD TAP FILTER
EVEN TAP FILTER
...,X5,X3,X1
+
FIGURE 6. POLYPHASE IMPLEMENTATION OF DECIMATE
BY 2 HALFBAND FILTER
HSP43216
相關(guān)PDF資料
PDF描述
MC9S08RE8FJE IC MCU 8K FLASH 8MHZ 32-LQFP
LTC1061ACN IC FILTER BUILDNG BLK TRPL 20DIP
S9S08SG4E2CTG IC MCU 8BIT 4KB FLASH 16TSSOP
S9S08SG4E2CSC MCU 4K FLASH 8-SOIC
MC9S08SH8CFK MCU 8BIT 8K FLASH 24-QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HSP43220 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Decimating Digital Filter
HSP43220/883 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Decimating Digital Filter
HSP43220_04 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Decimating Digital Filter
HSP43220883 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Decimating Digital Filter
HSP43220GC-15 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*