Datasheet

Table Of Contents
AD9852
Rev. E | Page 9 of 52
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
2
D6
3
D5
4
D4
7
D1
6
D2
5
D3
1
D7
8
D0
9
DVDD
10
DVDD
12
DGND
13
NC
14
A5
15
A4
16
A3
17
A2/IO RESET
18
A1/SDO
19
A0/SDIO
20
I/O UD CLK
11
DGND
59
58
57
54
55
56
60
53
52
AGND
NC
NC
AVDD
DACBP
DAC R
SET
AVDD
AGND
IOUT2
51
IOUT2
49
IOUT1
48
IOUT1
47
AGND
46
AGND
45
AGND
44
AVDD
43
VINN
42
VINP
41
AGND
50
AVDD
NC = NO CONNECT
21
WR/SCLK
22
RD/CS
23
DVDD
24
DVDD
25
DVDD
26
DGND
27
DGND
28
DGND
29
FSK/BPSK/HOLD
30
OSK
31
AVDD
32
AVDD
33
AGND
34
AGND
35
NC
36
VOUT
37
AVDD
38
AVDD
39
AGND
40
AGND
80
DVDD
79
DVDD
78
DGND
77
DGND
76
DGND
75
DGND
74
DVDD
73
DVDD
72
DGND
71
MASTER RESET
70
S/P SELECT
69
REFCLK
68
REFCLK
67
AGND
66
AGND
65
AVDD
64
DIFF CLK ENABLE
63
NC
62
AGND
61
PLL FILTER
PIN 1
AD9852
TOP VIEW
(Not to Scale)
00634-002
Figure 2. Pin Configuration
Table 5. Pin Function Descriptions
Pin Number Mnemonic Description
1 to 8 D7 to D0 8-Bit Bidirectional Parallel Programming Data Inputs. Used only in parallel programming mode.
9, 10, 23, 24, 25,
73, 74, 79, 80
DVDD
Connections for the Digital Circuitry Supply Voltage. Nominally 3.3 V more positive than AGND
and DGND.
11, 12, 26, 27, 28,
72, 75 to 78
DGND Connections for Digital Circuitry Ground Return. Same potential as AGND.
13, 35, 57, 58, 63 NC No Internal Connection.
14 to 16 A5 to A3
Parallel Address Inputs for Program Registers (Part of 6-Bit Parallel Address Inputs for Program
Register, A5:A0). Used only in parallel programming mode.
17 A2/IO RESET
Parallel Address Input for Program Registers (Part of 6-Bit Parallel Address Inputs for Program
Register, A5:A0)/IO Reset. A2 is used only in parallel programming mode. IO RESET is used when
the serial programming mode is selected, allowing an IO RESET of the serial communication bus
that is unresponsive due to improper programming protocol. Resetting the serial bus in this
manner does not affect previous programming, nor does it invoke the default programming
values seen in
Table 9. Active high.
18 A1/SDO
Parallel Address Input for Program Registers (Part of 6-Bit Parallel Address Inputs for Program
Register, A5:A0)/Unidirectional Serial Data Output. A1 is used only in parallel programming
mode. SDO is used in 3-wire serial communication mode when the serial programming mode is
selected.