參數(shù)資料
型號(hào): AD9877ABS
廠商: ANALOG DEVICES INC
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Mixed-Signal Front End Set-Top Box, Cable Modem
中文描述: SPECIALTY TELECOM CIRCUIT, PQFP100
封裝: PLASTIC, MQFP-100
文件頁(yè)數(shù): 8/36頁(yè)
文件大?。?/td> 1094K
代理商: AD9877ABS
AD9877
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Rev. B | Page 8 of 36
3
T
3
T
3
D
3
D
3
P
3
P
3
R
3
D
3
D
4
D
4
S
4
C
4
S
4
S
2
DRGND
DRVDD
3
4
IF(11)
IF(10)
7
IF(8)
IF(7)
IF(6)
6
IF(9)
5
1
AVDD
8
9
10
IF(5)
IF(4)
12
IF(3)
IF(2)
IF(1)
IF(0)
13
14
15
16
RxIQ(3)
RxIQ(2)
RxIQ(1)
RxIQ(0)
RxSYNC
DRGND
DRVDD
MCLK
DVDD
DGND
17
18
19
20
21
22
23
24
25
26
TxSYNC
TxIQ(5)
TxIQ(4)
TxIQ(3)
TxIQ(2)
27
28
29
30
11
79
I IN+
I IN–
78
77
AGNDIQ
NC
74
AGNDIQ
AVDDIQ
DRVDD
75
NC
76
80
AGNDIQ
73
72
71
REFCLK
DRGND
69
DGNDSD
SDELTA0
SDELTA1
DVDDSD
CA_EN
CA_DATA
CA_CLK
DVDDOSC
OSCIN
XTAL
DGNDOSC
AGNDPLL
PLLFILT
AVDDPLL
68
67
66
65
64
63
62
61
60
59
58
57
56
55
DVDDPLL
DGNDPLL
AVDDTx
Tx+
Tx–
54
53
52
51
70
4
D
4
D
4
P
4
R
4
F
5
A
N
A
I
I
A
A
R
R
A
A
N
N
A
A
R
R
A
A
Q
Q
1
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
8
8
8
PIN 1
AD9877
TOP VIEW
(Not to Scale)
NC = NO CONNECT
0
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No.
1, 84, 87, 92, 95
2, 21, 70
3, 22, 72
25, 34, 39, 40
24, 33, 38
45
46
50
53
54
55
56
58
Mnemonic
AVDD
DRGND
DRVDD
DGND
DVDD
DGNDTx
DVDDTx
AGNDTx
AVDDTx
DGNDPLL
DVDDPLL
AVDDPLL
AGNDPLL
Description
12-Bit ADC Analog 3.3 V Supply.
Pin Driver Digital Ground.
Pin Driver Digital 3.3 V Supply.
Digital Ground.
Digital 3.3 V Supply.
Tx Path Digital Ground.
Tx Path Digital 3.3 V Supply.
Tx Path Analog Ground.
Tx Path Analog 3.3 V Supply.
PLL Digital Ground.
PLL Digital 3.3 V Supply.
PLL Analog 3.3 V Supply.
PLL Analog Ground.
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