hsp50214a Intersil Corporation, hsp50214a Datasheet - Page 10

• Manufacturer Part Number: hsp50214a
• Description: Programmable Downconverter
• Manufacturer: Intersil Corporation

FIGURE 6. INTERPOLATION SPECTRUM: INTERPOLATE BY 8 THE INPUT DATA WITH ZERO STUFFING; SAMPLE AT RATE R = f’
x
x
x
x
x x
x x
x x
x
x
x
x
x
x
x
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
x
xx
xx
xx xx
xx
xxxx
xxxx
xxxx
xxxx
xxxx
4MHz
xx xx
xx
xx
xx
xx
O.5MHz
5MHz
5MHz
f’
S
f
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x
x
x
x
x
x
x
x x
x x
x x
x
x
x
x
x x
x x
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x
S
/8
FIGURE 7. ALIAS PROFILE AND THE 85dB DYNAMIC RANGE BANDWIDTH
DECIMATE BY 10 AND CIC FILTER; SAMPLE AT RATE R = f’
8MHz
10MHz
10MHz
85dB DYNAMIC RANGE BANDWIDTH
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xx xx
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xx
xx
xx
xx
f’
2f
1MHz
S
x
x
x
x
x x
x x
x
x
x
x
x
x
x x
x x
x
x
S
/4
12MHz 16MHz 20MHz 24MHz 28MHz 32MHz 36MHz 40MHz
INPUT
FIGURE 8. PROCESSOR BASED EXTERNAL IF AGC
THE INPUT DATA SPECTRUM SAMPLED AT RATE R = fs
15MHz
15MHz
3f’
IF
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xx xx
xx xx
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xx
3f
S
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x
x x
x x
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x
x x
x x
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x
S
/8
CIC FILTER ALIAS PROFILE
DAC
GCA
20MHz
20MHz
f’
xx
xx
xx
xx
xx xx
xx xx
xx
xx
xx
xx
2MHz
4f
S
x
x
x
x
x x
x x
x
x
x
x
x x
/2
S
HSP50214A
PROC
25MHz
25MHz
5f’
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xx
xx xx
x x
x
x
x
x
5f
S
x
x
x
x
x x
x x
x
x
x
x
x x
x x
x
x
S
/8
10
A/D
30MHz
30MHz
3f’
3MHz
xx
xx
xx
xx
xx xx
xx xx
xx
xx
xx
xx
6f
S
x
x
x
x
x x
x x
x
x
x
x
x
x
x x
x x
x
x
S
/4
INPUT LEVEL
DETECTOR (24-BIT
ERROR VALUE)
THRESH
35MHz
35MHz
7f’
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xx
xx xx
xx xx
xx
xx
xx
xx
7f
S
S
x
x
x
x
x x
x x
x
x
x
x
x x
x x
x
x
PDC
S
/10
/8
40MHz
40MHz
4MHz
xx
xx
xx
xx
xx xx
xx xx
xx
xx
xx
xx
f’
8f
x
x
x
x
x x
x x
x
x
x
x
S
x
x
x
x
x x
x x
x
x
S
CIC FILTER
FREQUENCY
RESPONSE
45MHz
xx
xx
xx
xx
xx xx
9f
x
x
x
x
x x
S
50MHz
xx
xx
xx
xx
xx xx
10f
x
x
x
x
x x
S
S