HSP50214BVC Intersil, HSP50214BVC Datasheet - Page 17
HSP50214BVC
Manufacturer Part Number
HSP50214BVC
Description
IC's, Microprocessor Support
Manufacturer
Intersil
Datasheet
1.HSP50214BVC.pdf
(62 pages)
Specifications of HSP50214BVC
No. Of Pins
120
Mounting Type
Surface Mount
No. Of Channels
1
Package / Case
120-MQFP
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HSP50214BVCZ
Manufacturer:
AD
Quantity:
1 001
NOTE: If 14 input bits are not needed, the gain adjust can be in-
Since each halfband filter section decimates by 2, the total
decimation through the halfband filter is given by:
where N = Number of Halfband Filters Selected (1 - 5).
DEC
HB
creased by one for each bit that the input is shifted down
at the input. For example, if only 12-bits are needed, an
offset range of 24dB is possible for a decimation of 24.
=
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
2
FIGURE 16. CIC FILTER BIT WEIGHTING
N
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-32
-33
-34
-35
-36
-37
-38
-39
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
2
2
2
2
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-32
-33
-34
-35
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
17
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-1
-2
-3
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-1
-2
-3
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
(EQ. 9)
HSP50214B
CONTROL WORD 7, BIT 19
†
FIGURE 17. BLOCK DIAGRAM OF HALFBAND FILTER
Each halfband section decimates by 2.
CONTROL WORD 7, BIT 18
F
N
CONTROL WORD 7, BIT 17
F
= F
N
FILTER INPUT
= F
CONTROL WORD 7, BIT 16
F
HB4
HALFBAND
N
CONTROL WORD 7, BIT 15
F
HB3
= F
N
= F
HB2
SECTION
HB1
F
N
= f
S
0
HALFBAND FILTER 5
0
F
1
5
HALFBAND FILTER 4
= F
0
1
F
HB4
HALFBAND FILTER 3
HB4
0
F
1
HALFBAND FILTER 2
HB3
= F
0
OR F
1
F
HALFBAND FILTER 1
HB2
HALFBAND
FILTER OUTPUT
HB3
= F
1
F
HB4
HB1
HB2
= F
OR F
HB1
/2
= f
OR F
HB3
f
†
IN
S
OR F
OR f
May 1, 2007
= f
HB2
/2
†
FN4450.4
S
†
HB1
S
/2
/2
†
/2
†