參數(shù)資料
型號: AD9520-3/PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 10/80頁
文件大?。?/td> 0K
描述: BOARD EVAL AD9520-3
設(shè)計資源: Synchronizing Multiple AD9910 1 GSPS Direct Digital Synthesizers (CN0121)
Phase Coherent FSK Modulator (CN0186)
AD9520 Eval Brd Schematic
AD9520 BOM
標準包裝: 1
主要目的: 計時,時鐘發(fā)生器
已用 IC / 零件: AD9520-3
已供物品:
AD9520-3
Data Sheet
Rev. A | Page 18 of 80
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
07216-
003
NOTES
1. EXPOSED DIE PAD MUST BE CONNECTED TO GND.
PIN 1
INDICATOR
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
S
D
IO/S
D
A
S
DO
G
ND
SP1
SP0
EEPR
O
M
R
ESET
PD
O
UT
9
(
O
UT
9A)
O
UT
9
(
O
UT
9B)
V
S
_DRV
O
UT
10
(
O
UT
10A)
O
UT
10
(
O
UT
10B)
O
UT
11
(
O
UT
11A)
O
UT
11
(
O
UT
11B)
VS
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
RE
F
IN
(
RE
F
1)
RE
F
IN
(
RE
F
2)
C
PR
SET
VS
G
ND
R
SET
VS
O
UT
0
(
O
UT
0A)
O
UT
0
(
O
UT
0B)
V
S
_DRV
O
UT
1
(
O
UT
1A)
O
UT
1
(
O
UT
1B)
O
UT
2
(
O
UT
2A)
O
UT
2
(
O
UT
2B)
VS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VS
REFMON
LD
VCP
CP
STATUS
REF_SEL
SYNC
LF
BYPASS
VS
CLK
CS
SCLK/SCL
OUT3 (OUT3A)
OUT3 (OUT3B)
VS_DRV
OUT4 (OUT4A)
OUT4 (OUT4B)
OUT5 (OUT5A)
OUT5 (OUT5B)
VS
OUT8 (OUT8B)
OUT8 (OUT8A)
OUT7 (OUT7B)
OUT7 (OUT7A)
VS_DRV
OUT6 (OUT6B)
OUT6 (OUT6A)
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AD9520
TOP VIEW
(Not to Scale)
Figure 5. Pin Configuration
Table 21. Pin Function Descriptions
Pin No.
Input/
Output
Pin
Type
Mnemonic
Description
1, 11, 12,
32, 40, 41,
49, 57, 60,
61
I
Power
VS
3.3 V Power Pins.
2
O
3.3 V CMOS
REFMON
Reference Monitor (Output). This pin has multiple selectable outputs.
3
O
3.3 V CMOS
LD
Lock Detect (Output). This pin has multiple selectable outputs.
4
I
Power
VCP
Power Supply for Charge Pump (CP); VS ≤ VCP ≤ 5.25 V. VCP must still be connected
to 3.3 V if the PLL is not used.
5
O
Loop filter
CP
Charge Pump (Output). This pin connects to an external loop filter; it can be left
unconnected if the PLL is not used.
6
O
3.3 V CMOS
STATUS
Programmable Status Output.
7
I
3.3 V CMOS
REF_SEL
Reference Select. This pin selects REF1 (low) or REF2 (high) and has an internal 30 k
pull-down resistor.
8
I
3.3 V CMOS
SYNC
Manual Synchronization and Manual Holdover. This pin initiates a manual
synchronization and is used for manual holdover. Active low. This pin has an
internal 30 k pull-up resistor.
9
I
Loop filter
LF
Loop Filter (Input). This pin connects internally to the VCO control voltage node.
10
O
Loop filter
BYPASS
This pin is for bypassing the LDO to ground with a 220 nF capacitor. It can be left
unconnected if the PLL is not used.
13
I
Differential
clock input
CLK
Along with CLK, this pin is the differential input for the clock distribution section.
14
I
Differential
clock input
CLK
Along with CLK, this pin is the differential input for the clock distribution section.
If a single-ended input is connected to the CLK pin, connect a 0.1 F bypass capacitor
from this pin to ground.
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