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參數(shù)資料
| 型號： | AD807 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Fiber Optic Receiver with Quantizer and Clock Recovery and Data Retiming(帶數(shù)字轉(zhuǎn)換,時(shí)鐘恢復(fù)和重定時(shí)功能的光纖接收器) |
| 中文描述： | 光纖接收器與量化和時(shí)鐘恢復(fù)和數(shù)據(jù)重定時(shí)（帶數(shù)字轉(zhuǎn)換，時(shí)鐘恢復(fù)和重定時(shí)功能的光纖接收器） |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 234K |
| 代理商： | AD807 |
AD807
REV. A
–11–
C12 0.1
1
2
5
6
7
3
4
8
16
15
12
11
10
14
13
9
V
EE
SDOUT
AV
CC2
PIN
NIN
AV
CC1
THRADJ
AV
EE
AD807
R10
154
R9
154
R6 100
C7 0.1μF
R5 100
R1
100
R2
100
C1 0.1μF
0C2
0C3
0C4
0C6
R4
R8 100
R7 100
R3
C8
R12
R11
150
0C5
CD
0.1μF
C11 0.1
R13
THRADJ
C10 0.1
R14
47
R15
47
+5V
DATAOUTN
DATAOUTP
V
CC2
CLKOUTN
CLKOUTP
V
CC1
CF1
CF2
J1
J2
J3
J4
SDOUT
330
R17
120nH
0.1
C9 10
30pF
30pF
0.1
EPITAXX
1μF
1
2
3
PIN TIA
NOTE
PIN TIA PIN 4 (CASE)
IS CONNECTED TO
GROUND
NOISE FILTER
0.1μF
Figure 26. AD807 Application with Epitaxx PIN—Transimpedance Amplifier Module
T he entire circuit was enclosed in a shielded box. T able I sum-
marizes results of tests performed using a 2
23
-1 PRN Sequence,
and varying the average power at the PIN diode.
T he circuit acquires and maintains lock
with an average input
power as low as –39.25 dBm.
T able II. AD807—E pitaxx E RM504 PIN T IA 155 Mbps
Fiber Optic Receiver Circuit:
Output Bit E rror Rate & Output Jitter vs. Average Input Power
Average Optical
Input Power
(dBm)
Output Bit
E rror Rate
Output Jitter
(ps rms)
0
–3
–10
–20
–30
–32
–34
–35
–35.5
–36
–37.0
–37.6
–38.0
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.0
×
10
–10
0.5
×
10
–10
4
×
10
–6
29
35
40
37
33
35
36
39
40
41
42
43
50
SONE T (OC-3)/SDH (ST M-1) Fiber Optic Receiver Circuit
A light wave receiver circuit for SONET /SDH application at
155 Mbps is shown in Figure 26, with test results given in T able
II. T he circuit operates from a single +5 V supply, and uses two
major components: an Epitaxx ERM504 PIN-T IA module with
AGC, and the AD807 IC.
A 120 MHz, third order, low-pass Butterworth filter at the out-
put of the PIN-T IA module provides adequate bandwidth (70%
of the bit rate), and attenuates high frequency (out of band)
noise.
250mV
50mV/
DIV
–250mV
38.12ns
1ns/DIV
48.12ns
Figure 27. Receiver Output (Data) Eye Diagram,
0 dBm Optical Input
250mV
50mV/
DIV
–250mV
38.12ns
1ns/DIV
48.12ns
Figure 28. Receiver Output (Data) Eye Diagram,
–38 dBm Optical Input
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