參數(shù)資料
型號: T8538B
元件分類: Codec
英文描述: T8538B Quad Programmable Codec
中文描述: T8538B四可編程編解碼器
文件頁數(shù): 7/44頁
文件大?。?/td> 847K
代理商: T8538B
Agere Systems Inc.
7
Preliminary Data Sheet
August 2001
T8538B Quad Programmable Codec
Pin Information
(continued)
5-7187iF
Figure 3. 64-Pin TQFP Pin Diagram
Table 3. Pin Assignments 64-Pin TQFP, Per-Channel Functions
Ckt
Name
Type
Name/Description
a
9
b
21
c
d
34
22
AGND
GND
Analog Ground.
A common AGND, DGND plane is highly
recommended.
Analog Power Supply.
Voice Frequency Transmit Input.
For complex terminations,
this node requires a 10 M
or 20 M
resistance to AGND.
Voice Frequency Receive Output, Positive Polarity.
This
pin can drive 2000
(or greater) loads.
Voice Frequency Receive Output, Negative Polarity.
This
pin can drive 2000
(or greater) loads.
SLIC Control 0.
SLIC Control 1.
SLIC Control 2.
SLIC Control 3.
SLIC Control 4.
8
7
20
19
23
24
35
36
V
DD
VF
X
I
PWR
I
6
18
25
37
VF
R
OP
O
5
17
26
38
VF
R
ON
O
4
3
16
14
13
12
10
28
29
30
31
33
39
40
51
52
53
SLIC0
SLIC1
SLIC2
SLIC3
SLIC4
I/O
I/O
I/O
I/O
I/O
64
63
62
60 59 58 57 56 55 54 53 52
61
D
D
S
R
I
S
S
D
62
63
64
51 50 49
V
D
D
S
S
C
S
D
30
28
27
26
25
24
23
22
21
20
29
V
D
b
V
X
I
V
DD
SLIC0b
V
R
O
V
R
O
S
S
A
31 32
19
18
17
V
X
I
V
D
c
SLIC1b
V
R
O
V
R
O
V
D
A
13
14
15
16
12
11
10
9
8
7
6
5
4
SLIC0a
VF
R
ONa
V
DD
a
AGNDa
SLIC4b
V
DD
DGND
SLIC1a
DGND
SLIC3b
SLIC2b
VF
R
OPa
VF
X
Ia
3
2
1
36
35
34
33
38
37
39
40
41
42
43
44
45
46
SLIC1d
SLIC0d
VF
X
Id
V
DD
d
DX0
DGND
BCLK
FS
V
DD
AGNDd
SLIC4c
D
S
VF
R
ONd
VF
R
OPd
47
48
S
DX1
TSX0
DR0
T
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