hsp50214b Intersil Corporation, hsp50214b Datasheet - Page 6
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hsp50214b
Manufacturer Part Number
hsp50214b
Description
Programmable Downconverter
Manufacturer
Intersil Corporation
Datasheet
1.HSP50214B.pdf
(62 pages)
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IN(13:0)
GAINADJ(2:0)
ENI
AGCGNSEL
μPROCESSOR
PROCCLK
INTERFACE
COFSYNC
SOFSYNC
REFCLK
DETECT
LEVEL
CLKIN
TO
A(2:0)
C(7:0)
COF
SOF
WR
RD
(CARRIER TRACKING)
MICROPROCESSOR
READ/WRITE
MIXER
NCO
5TH ORDER
DECIMATE
FROM 4-32
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM OF THE HSP50214B PROGRAMMABLE DOWNCONVERTER
CIC
CONTROL
SECTION
0 TO 5 HALFBAND FILTER;
DECIMATION UP TO 32
OUTPUT SECTION
DISCRIMINATOR SECTION
INPUT SECTION
LEVEL DETECT SECTION
SYNCHRONIZATION SECTION
CARRIER NCO SECTIONS
CIC, HALFBAND FILTER, AND FIR SECTIONS
DIGITAL AGC SECTION
RE-SAMPLER/INTERPOLATION HALFBAND SECTION
TIMING NCO
TO OUTPUT FORMATTER
AND MICROPROCESSOR
(DECIMATE UP TO 16)
PROGRAMMABLE
FIR FILTER
INTERFACE
255-TAP
(C
(C
C
C
O
n
O
n
= 0)
= 0)
= 1;
= 1;
(SYMBOL TRACKING)
AGCOUT
NCO
AGC
A
RE-SAMPLER
DIFFERENCE
LIMIT
PROCCLK
CLKIN
INTERPOLATE
DISCRIMINATOR
HALFBAND
FILTERS
BY 2/4
FILTER
dθ
t d
LOOP
PROGRAMMABLE
SYNCHRONIZATION
SYNCHRONIZATION
SYNCHRONIZATION
CARTESIAN
A
TIMING ERROR
FIR FILTER
63-TAP
POLAR
atan
FRONT END
I
Q
CIRCUITRY
BACK END
CIRCUITRY
CIRCUITRY
I
TO
2
AGCOUT
+
CHIP
DETECT
ERROR
⎛ ⎞
⎝ ⎠
Q
Q
--- -
I
2
DATARDY
INTRRP
AOUT(15:0)
BOUT(15:0)
OEAH
OEAL
OEBH
OEBL
INTRRP
SEL(2:0)
SEROUTA
SEROUTB
SERCLK
SERSYNC
SEROE
MSYNCI
SYNCOUT
MSYNCO
SYNCIN2
SYNCIN1