ISL5416KIZ datasheet(11/71 Pages) INTERSIL

номер детали	ISL5416KIZ

подробное описание детали	Four-Channel Wideband Programmable DownConverter

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производитель	INTERSIL [Intersil Corporation]

домашняя страница	http://www.intersil.com/cda/home

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11

NCO/Mixer

After the input select/format section, the samples are

multiplied by quadrature sine wave samples from the carrier

NCO. The NCO has a 32-bit frequency control, providing

sub-hertz resolution at the maximum clock rate. The

quadrature sinusoids have exceptional purity. The purity of

the NCO should not be the determining factor for the

receiver dynamic range performance (A typical spectrum

plot is shown in Figure 20). The phase quantization to the

sine/cosine generator is 24 bits and the amplitude

quantization is 19 bits.

The carrier NCO center frequency is loaded via the uP bus. The

center frequency control is double buffered -- the input is loaded

into a holding register via the uP interface. The data is then

transferred from the holding register to the active register by a

write to a special address or by a SYNCInX signal, if enabled in

IWA = *000h. To synchronize multiple channels, the carrier

NCO phase accumulator feedback can be zeroed on loading to

restart all of the NCOs at the same phase (see IWA = *005h).

The phase of the NCO can be offset by programming IWA =

*003h. The phase offset is not double buffered.

R

E

G

ENA

ENB

ENC

END

EN

µP

EXPA

EXPB

EXPC

EXPD

EXP

µP

AMANT

BMANT

CMANT

DMANT

µPMANT

R

E

G

R

E

G

R

E

G

R

E

G

R

E

G

FIR

FILTER

R

E

G

R

E

G

R

E

G

0...-15

0...-23

R

E

G

0...-29

0...-23

69b

62b

53b

44b

34b

REG

SIN/COS

GEN

REG

SERIAL

FREQ

OFFSET

COF

COFSYNC

ENCOF

0...-23

0...-18

R

E

G

R

E

G

R

E

G

R

E

G

C

L

I

P

R

E

G

R

E

G

R

E

G

MAX EXP

BASE

SHIFT

VALUE

0...-23

R

E

G

R

E

G

R

E

G

DECIMATION

COUNTER

R

E

G

R

E

G

R

E

G

R

E

G

CIC ORDER

FIR COEFFICIENTS

11

-1

21

-2

1

31

-3

3

-1

41

-4

6

-4

1

5

1

-5

10

-10

5

-1

CENTER

FREQ

PHASE

OFFSET

(COMB)

FIGURE 3. NCO, MIXER AND CIC BLOCK DIAGRAM

(from uP)

NOTE:

BUS NUMBERING SUCH AS 0...-23 INDICATES BIT WEIGHTS

SUCH AS 20 ... 2-23

(TEST INPUT)

ISL5416

Аналогичный номер детали - ISL5416KIZ

производитель	номер детали	датащи	подробное описание детали
Intersil Corporation	ISL5416KIZ	1Mb / 71P	Four-Channel Wideband Programmable August 2004
Renesas Technology Corp	ISL5416KIZ	2Mb / 71P	Four-Channel Wideband Programmable DownConverter

More results

Аналогичное описание - ISL5416KIZ

производитель	номер детали	датащи	подробное описание детали
Intersil Corporation	ISL5416	1Mb / 71P	Four-Channel Wideband Programmable DownConverter
Renesas Technology Corp	ISL5416	2Mb / 71P	Four-Channel Wideband Programmable DownConverter
Intersil Corporation	HSP50216	786Kb / 58P	Four-Channel Programmable Digital Downconverter
Intersil Corporation	ISL5216KI	971Kb / 65P	Four-Channel Programmable Digital Downconverter July 13, 2007
Renesas Technology Corp	HSP50216	1Mb / 59P	Four-Channel Programmable Digital Downconverter October 5, 2015
Intersil Corporation	ISL5216	1Mb / 65P	Four-Channel Programmable Digital DownConverter
Intersil Corporation	HSP50216	767Kb / 58P	Four-Channel Programmable Digital DownConverter
Renesas Technology Corp	ISL5216	2Mb / 65P	Four-Channel Programmable Digital Downconverter
Intersil Corporation	HSP50216	561Kb / 53P	Four-Channel Programmable Digital DownConverter
Intersil Corporation	ISL5216	969Kb / 65P	Four-Channel Programmable Digital Downconverter

More results

ISL5416KIZ датащи(PDF) 11 Page - Intersil Corporation

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