參數(shù)資料
型號(hào): AFE1231KG4
英文描述: G.SHDSL ANALOG FRONT-END
中文描述: 灣SHDSL的模擬前端
文件頁(yè)數(shù): 11/15頁(yè)
文件大?。?/td> 313K
代理商: AFE1231KG4
AFE1230
SBWS015A
11
FIGURE 8. AFE1230 Line Interface with 14.5dBm Line Power for G.SHDSL.
0.25x
0.38x
0.5x
30
40
50
60
70
80
90
100
110
120
P
10k
100k
1M
Logarithmic Scale (10kHz to 1000kHz)
FIGURE 9. AFE1230 Transmit PSD with 30MHz of Master Clock, Seventh-Order tx Filter and Cutoff Frequency Ratio of 0.5x,
0.38x, and 0.25x.
DV
DD
GNDD
txBaud
txData
MCLK
rxBaud
rxData
DV
DD
GNDD
GNDA
HybP
HybM
LineP
LineM
GNDA
GNDA
txOutP
AV
DD
txOutM
GNDA
AV
DD
AV
DD
AV
DD
V
REF
M
V
CM
V
REF
P
GNDA
GNDA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
AFE1230
C
(1)
C
(1)
C
(1)
C
(1)
10
μ
F
10
μ
F
0
0
DV
DD
GND
AV
DD
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
R
3
20k
C
(1)
C
(1)
C
(1)
C
(1)
C
(1)
C
(1)
6.8pF
(3)
10pF
(3)
3.3pF
(3)
R
5
20k
R
4
10k
R
6
10k
0.47
μ
F
135
1:3.7
(2)
53nF
Zi(f)
53nF
R
1
4.99
R
2
4.99
NOTES: (1) C = 0.1
μ
F (Ceramic SMT). (2) Transformer = Midcom
51185. (3) These components provide low-pass filtering to the input signal
and are optional, since the AFE1230 provides an internal low-pass filter
with 1MHz cutoff frequency on the front end of the receiver, as well as
oversampling by the A/D converter.
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