HFBR-5111 Agilent(Hewlett-Packard), HFBR-5111 Datasheet - Page 7

• Manufacturer Part Number: HFBR-5111
• Description: Low Cost/ Industry Standard FDDI MIC Transceivers
• Manufacturer: Agilent(Hewlett-Packard)

98
SIGNAL DETECT
SIGNAL DETECT
(a) HFBR-5111
(b) HFBR-5112/-5113
Figure 7. Recommended Decoupling Circuit Diagram.
VIEW
TOP
NOTES:
1. PLACE TERMINATION RESISTORS NEAR INPUT DATA PINS OF TRANSCEIVER AND PHY DEVICES.
2. MAKE DIFFERENTIAL SIGNAL PATHS SHORT AND OF THE SAME LENGTH WITH EQUAL TERMINATIONS TO V
3. SIGNAL TRACES SHOULD BE 50
4. RESISTORS IN . CAPACITORS IN MICROFARADS. INDUCTORS IN MICROHENRIES.
5. USE HIGH-FREQUENCY MONOLITHIC CERAMIC BYPASS CAPACITORS AND LOW SERIES DC RESISTANCE INDUCTORS.
6. CAUTION: DO NOT DIRECTLY CONNECT FIBER-OPTIC MODULE PECL OUTPUTS (DATA, DATA, SIGNAL DETECT, SIGNAL DETECT)
7. DEVICE GROUND PINS SHOULD BE DIRECTLY AND INDIVIDUALLY CONNECTED TO GROUND.
8. DEVICE SOLDER POSTS SHOULD BE DIRECTLY CONNECTED TO PCB FOR OPTIMUM MECHANICAL SUPPORT.
DATA
DATA
(OR MULTI-LAYER) PRINTED CIRCUIT BOARD FOR BEST HIGH FREQUENCY PERFORMANCE.
FERRITE INDUCTORS CAN BE USED.
LOCATE POWER SUPPLY FILTER COMPONENTS CLOSE TO FIBER-OPTIC DEVICES.
TO GROUND WITHOUT PROPER CURRENT LIMITING IMPEDANCE.
R9
82
R11
130
V
CC
R1
82
130
R3
R10
82
L1
1
C1
R12
130
20
R2
82
R4
130
TRANSMISSION LINES: MICROSTRIP (OR STRIPLINE). USE GROUND PLANE
C5
0.1
10
11
1
2
3
4
5
6
7
8
9
C2
0.1
GND
NC
V
V
GND
GND
SD
SD
V
DATA OUT
DATA OUT
DATA OUT
DATA OUT
Rx
CC
CC
CC
GND
GND
DATA IN
DATA IN
RX V
TX V
TOP VIEW
GND
GND
GND
GND
V
CC
CC
SD
SD
B
DATA IN
DATA IN
GND
GND
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
GND
GND
GND
V
V
V
V
V
Tx
CC
CC
CC
CC
BB
22
21
20
19
18
17
16
15
14
13
12
0.1
C4
C5
0.1
L2
1
C1
20
L2
1
130
R7
L1
1
R5
82
C2
0.1
C3
10
C4
0.1
C3
10
R8
130
R6
82
130
R8
R6
82
R9
82
CC
R11
130
– 2 VOLTS.
R10
82
R5
82
R12
130
DATA
DATA
130
R7
R2
82
R4
130
R1
82
R3
130
DATA IN
DATA IN
V
SD
SD
DATA OUT
DATA OUT
CC