VCC2 CLKOUTN CF1 CF2 V
參數(shù)資料
型號(hào): AD807A-155BR
廠商: Analog Devices Inc
文件頁(yè)數(shù): 3/12頁(yè)
文件大小: 0K
描述: IC FIBER OPTIC RCVR 16-SOIC
標(biāo)準(zhǔn)包裝: 1
類型: 接收器
驅(qū)動(dòng)器/接收器數(shù): 0/1
規(guī)程: SDHj Sonet
電源電壓: 4.5 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC
包裝: 管件
REV. B
AD807
–11–
AD807
DATAOUTN
DATAOUTP
VCC2
CLKOUTN
CF1
CF2
VEE
SDOUT
PIN
NIN
AVCC1
THRADJ
AVEE
SDOUT
VCC1
CLKOUTP
AVCC2
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
CD
R5 100
R6 100
R10
154
R9
154
C7 0.1 F
R7 100
R8 100
C8
0.1 F
R12
150
R11
150
R2
100
R1
100
C2 0.1 F
C3 0.1 F
C4 0.1 F
C5 0.1 F
R4
100
R3
100
C6
0.1 F
C1 0.1 F
J1
J2
J3
J4
R13
THRADJ
C11 0.1 F
C10
0.1 F
R14
47
R15
47
R16
330
C9
10 F
5V
C13
0.1 F
C14
0.1 F
30pF
NOISE FILTER
120nH
R17
3.9k
C12
0.1 F
EPITAXX
ERM504
1
2
PIN TIA
1 F
NOTE:
PIN TIA PIN 4 (CASE)
IS CONNECTED TO
GROUND
Figure 17. AD807 Application with Epitaxx PIN—Transimpedance Amplifier Module
The entire circuit was enclosed in a shielded box. Table I sum-
marizes results of tests performed using a 2
23-1 PRN Sequence,
and varying the average power at the PIN diode.
The circuit acquires and maintains lock with an average input
power as low as –39.25 dBm.
Table II. AD807—Epitaxx ERM504 PIN TIA 155 Mbps
Fiber Optic Receiver Circuit: Output Bit Error Rate and
Output Jitter vs. Average Input Power
Average Optical
Input Power
Output Bit
Output Jitter
(dBm)
Error Rate
(ps rms)
0
0.0
× 10–10
29
–3
0.0
× 10–10
35
–10
0.0
× 10–10
40
–20
0.0
× 10–10
37
–30
0.0
× 10–10
33
–32
0.0
× 10–10
35
–34
0.0
× 10–10
36
–35
0.0
× 10–10
39
–35.5
0.0
× 10–10
40
–36
0.0
× 10–10
41
–37.0
0.0
× 10–10
42
–37.6
0.5
× 10–10
43
–38.0
4
× 10–6
50
SONET (OC-3)/SDH (STM-1) Fiber Optic Receiver Circuit
A light wave receiver circuit for SONET/SDH application at
155 Mbps is shown in Figure 17, with test results given in Table
II. The circuit operates from a single 5 V supply, and uses two
major components: an Epitaxx ERM504 PIN-TIA module with
AGC, and the AD807 IC.
A 120 MHz, third order, low-pass Butterworth filter at the
output of the PIN-TIA 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 18. Receiver Output (Data) Eye Diagram,
0 dBm Optical Input
250mV
50mV/
DIV
–250mV
38.12ns
1ns/DIV
48.12ns
Figure 19. Receiver Output (Data) Eye Diagram,
–38 dBm Optical Input
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