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ISL5216KI-1Z Datasheet

  • ISL5216KI-1Z

  • Four-Channel Programmable Digital DownConverter

  • 1095.01KB

  • 65頁

  • INTERSIL   INTERSIL

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ISL5216
.
TABLE 55. BIT WEIGHTING FOR AGC LOOP FEEDBACK PATH
AGC LOOP FILTER GAIN
AGC LOOP
(EXPONENT)
FILTER
GAIN
MULTIPLIER SHIFT SHIFT SHIFT SHIFT
=0
=4
=8
= 15
(OUTPUT)
2
2
2
2
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
=2
=1
= 0.
=1
=2
=3
=4
=5
=6
=7
=8
=9
= 10
= 11
= 12
= 13
0.
x
x
x
x
2
1
0.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
0.
1
2
3
4
5
6
7
8
9
10
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
0.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
2
2
2
2
2
2
2
2
2
2
2
1
0.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
G
G
G
G
2
2
2
2
2
1
0.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
G
G
G
G
G
G
G
G
G
G
G
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
AGC BIT WEIGHTS
TO
OUTPUT
SECTION
0
E
E
E
E
M
M
M
M
M
M
M
M
M
M
M
M
M
M
TO
碌P
0
E
E
E
E
M
M
M
M
M
M
M
M
M
M
M
48
24
12
6
3
1.5
0.75
0.375
0.1875
0.09375
0.04688
0.02344
0.01172
0.00586
0.00293
0.00146
0.000732
0.000366
0.000183
0.0000916
0.0000458
0.0000229
0.0000114
0.00000572
0.00000286
AGC GAIN
RESOLUTION
(dB)
GAIN
AGC
ERROR
GAIN
ACCUM
BIT
ERROR
BIT
POSITION INPUT WEIGHT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
AGC LOOP
FILTER GAIN
(MANTISSA)
LIMITS
Appendix A - Changes from HSP50216
The ISL5216 is pin and register compatible with the
HSP50216 facilitating an easy migration to the ISL5216 from
previous designs. Certain changes to hardware and possibly
software will be required to make this transition, however.
The listing below details the changes that should be
considered.
TCLK, TMS, and TRST), four additional exponent bits (one
for each input bus: Am1, Bm1, Cm1 and Dm1), and four
additional channel-specific SYNCI inputs (SYNCI0, SYNCI1,
SYNCI2, and SYNCI3). All new input pins have weak pull-
ups / pull-downs to allow them to be left floating if not used.
In addition to the newly-assigned pins, some of the 3.3V
VCC lines of the HSP50216 have been changed to 2.5V on
the ISL5216. The ISL5216 now has VCC1 (2.5V core supply
pins) and VCC2 (3.3V for I/O pads).
See pin descriptions for additional information.
Pinout Changes
Thirteen previously no-connect pins have been assigned to
ISL5216 features. These are five JTAG pins (TDI, TDO,
62
July 8, 2005

ISL5216KI-1Z 產(chǎn)品屬性

  • Intersil

  • + 85 C

  • BGA

  • - 40 C

  • Tray

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