hsp50214 Intersil Corporation, hsp50214 Datasheet - Page 10

• Manufacturer Part Number: hsp50214
• Description: Programmable Downconverter
• Manufacturer: Intersil Corporation

FIGURE 6. INTERPOLATION SPECTRUM: INTERPOLATE BY 8 THE INPUT DATA WITH ZERO STUFFING; SAMPLE AT RATE R = f’
†
Controlled via microprocessor interface.
INTEGRATION_INTERVAL
IN(13:0)
INTEGRATION_MODE
INPUT_THRESHOLD
x
x
x
x
x x
x x
x
x
x
x
xx
xx
xx
xx xx
xx
xxxx
xxxx
xxxx
xxxx
xxxx
4MHz
xx xx
xx
xx
xx
xx
O.5MHz
5MHz
f’
5MHz
S
f
x
x
x
x
x
x
x
x
x x
x x
x x
x
x
x
x
x
x
x x
x x
x
x
S
/8
CLKIN
GATING
FIGURE 7. ALIAS PROFILE AND THE 85dB DYNAMIC RANGE BANDWIDTH
LOGIC
INPUT
DECIMATE BY 10 AND CIC FILTER; SAMPLE AT RATE R = f’
8MHz
START
10MHz
10MHz
85dB DYNAMIC RANGE BANDWIDTH
xx
xx
xx
xx
xx xx
xx
xx
xx
xx
xx
f’s/4
†
2f
1MHz
†
x
x
x
x
x x
x x
x
x
x
x
x
x
x x
x x
x
x
S
†
12MHz 16MHz 20MHz 24MHz 28MHz 32MHz 36MHz 40MHz
†
INPUT
FIGURE 8. PROCESSOR BASED EXTERNAL IF AGC
THE INPUT DATA SPECTRUM SAMPLED AT RATE R = f
15MHz
15MHz
3f’
IF
xx
xx
xx
xx
xx xx
xx xx
xx
xx
xx
xx
3f
CONTINUOUS
S
x
x
x
x
x x
x x
x
x
x
x
x x
x x
x
x
G
R
E
S
|X|
/8
CIC FILTER ALIAS PROFILE
COUNTER
16
DAC
GCA
20MHz
20MHz
f’
xx
xx
xx
xx
xx xx
xx xx
xx
xx
xx
xx
2MHz
4f
“0”
S
x
x
x
x
x x
x x
x
x
x
x
x
x
x
x
S
/2
+
HSP50214
PROC
25MHz
25MHz
5f’
FIGURE 9.
xx
xx
xx
xx
xx xx
x x
x
x
x
x
5f
ACCUMULATOR
CLKIN
S
x
x
x
x
x x
x x
x
x
x
x
x x
x x
x
x
S
/8
10
+
SINGLE
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
32
R
E
G
INPUT LEVEL
DETECTOR (24-BIT
ERROR VALUE)
THRESH
35MHz
35MHz
7f’
xx
xx
xx
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
S
xx
xx
xx
xx
xx xx
xx xx
xx
xx
xx
xx
f’
8f
S
x
x
x
x
x x
x x
x
x
x
x
x
x
x
x
x
x
x x
x x
x
x
S
G
R
E
CIC FILTER
FREQUENCY
RESPONSE
24
ADDR(2:0)
45MHz
xx
xx
xx
xx
xx xx
9f
x
x
x
x
x x
S
M
U
X
8
50MHz
xx
xx
xx
xx
xx xx
10f
x
x
x
x
x x
TO
S
PROC
S