
binary multiples of clock cycles relative to each
other, going from slowest to the fastest, but
because of the internal data buffering the filter
actually takes one more filter output word to
settle than a strict analysis of the filter
coefficients would imply. The filter settles to
full accuracy to a input step in 57 output words.
Tables 2, 3 and 4 list the filter coefficients for
the three FIR filter stages.
The CS5322 digital filter consumes only 11
milliwatt
power
although
approximately 76,000 transistors. An analog
filter of comparable complexity would consist of
over 233,000 reactive elements.
it
consist
of
c3(1)=-26.0d0
c3(2)=-247.0d0
c3(3)=-822.0d0
c3(4)=-1362.0d0
c3(5)=-839.0d0
c3(6)=1012.0d0
c3(7)=2197.0d0
c3(8)=212.0d0
c3(9)=-3443.0d0
c3(10)=-3077.0d0
c3(11)=3156.0d0
c3(12)=7168.0d0
c3(13)=-256.0d0
c3(14)=-10709.0d0
c3(15)=-7644.0d0
c3(16)=10713.0d0
c3(17)=18055.0d0
c3(18)=-3873.0d0
c3(19)=-28007.0d0
c3(20)=-11826.0d0
c3(21)=31641.0d0
c3(22)=35194.0d0
c3(23)=-22177.0d0
c3(24)=-60427.0d0
c3(25)=-5404.0d0
c3(26)=77065.0d0
c3(27)=51056.0d0
c3(28)=-71982.0d0
c3(29)=-106905.0d0 c3(63)=-162173.0d0
c3(30)=33416.0d0
c3(31)=156296.0d0
c3(32)=43678.0d0
c3(33)=-175718.0d0
c3(34)=-152409.0d0 c3(68)=-152409.0d0
c3(35)=139856.0d0
c3(36)=270573.0d0
c3(37)=-29083.0d0
c3(38)=-360427.0d0
c3(39)=-162173.0d0
c3(40)=371807.0d0
c3(41)=417807.0d0
c3(42)=-246840.0d0
c3(43)=-693181.0d0
c3(44)=-78388.0d0
c3(45)=902497.0d0
c3(46)=685231.0d0
c3(47)=-865217.0d0
c3(48)=-1713558.0d0
c3(49)=-262.0d0
c3(50)=3276208.0d0
c3(51)=4950471.0d0
c3(52)=3276208.0d0
c3(53)=-262.0d0
c3(54)=-1713558.0d0
c3(55)=-865217.0d0
c3(56)=685231.0d0
c3(57)=902497.0d0
c3(58)=-78388.0d0
c3(59)=-693181.0d0
c3(60)=-246840.0d0
c3(61)=417807.0d0
c3(62)=371807.0d0
c3(69)=-175718.0d0
c3(70)=43678.0d0
c3(71)=156296.0d0
c3(72)=33416.0d0
c3(73)=-106905.0d0
c3(74)=-71982.0d0
c3(75)=51056.0d0
c3(76)=77065.0d0
c3(77)=-5404.0d0
c3(78)=-60427.0d0
c3(79)=-22177.0d0
c3(80)=35194.0d0
c3(81)=31641.0d0
c3(82)=-11826.0d0
c3(83)=-28007.0d0
c3(84)=-3873.0d0
c3(85)=18055.0d0
c3(86)=10713.0d0
c3(87)=-7644.0d0
c3(88)=-10709.0d0
c3(89)=-256.0d0
c3(90)=7168.0d0
c3(91)=3156.0d0
c3(92)=-3077.0d0
c3(93)=-3443.0d0
c3(94)=212.0d0
c3(95)=2197.0d0
c3(96)=1012.0d0
c3(97)=-839.0d0
c3(98)=-1362.0d0
c3(99)=-822.0d0
c3(100)=-247.0d0
c3(101)=-26.0d0
c3(64)=-360427.0d0
c3(65)=-29083.0d0
c3(66)=270573.0d0
c3(67)=139856.0d0
Table 4. FIR3 Filter Coefficients
c2(1)=8192.0d0
c2(2)=98304.0d0
c2(3)=540672.0d0
c2(4)=1802240.0d0
c2(5)=4055040.0d0
c2(6)=6488064.0d0
c2(7)=7569408.0d0
c2(8 =6488064.0d0
c2(9)=4055040.0d0
c2(10)=1802240.0d0
c2(11)=540672.0d0
c2(12)=98304.0d0
c2(13)=8192.0d0
Table 3. FIR2 Filter Coefficients
CS5322 Filter
AN53REV2
3