ak2573a AKM Semiconductor, Inc., ak2573a Datasheet - Page 37

• Manufacturer Part Number: ak2573a
• Description: 125m / 156m Laser Diode Driver Apc - Asahi Kasei Microsystems
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Fig-A illustrates circuit example of AK2573A.
Fig-A Circuit Example
<MS0189-E-01>
VDD or Open
C17
TD +
Open
TD -
C19
LVPECL I/F
(see below)
R101 = 100
C101 = C102 >= 0.01uF
C101
C102
R101
C18
C20
For write protection: Open or VDD
NC
VSSDR
BIASMON
MODMON
TEST3
TEST5
TEST6
VDDDR
TEST1
TEST2
TEST4
AC Coupling
VDDMD
DATA Only
SEL
CLKP
CLKN
DATAN
DATAP
For full access: GND
AK2573AVB
LD
VDD or Open
C11 C12 C13 C14
DC Coupling
DATA Only
TD +
L1
TD -
R113
R114
R111 = R113 = 130
R112 = R114 = 82
. Circuit Example
R111
R112
C15
TEMPMON
TEMPALM
LVPECL I/F
DATAALM
CURRALM
OPTALM
SEL
DATAN
CLKP
CLKN
DATAP
PDMON
PD
RPD
CPD
DVSS
VCC = 3.3V +/- 0.2V
AVSS
BIAS
C16
SCL
SDA
NC
-37-
VCC or GND
R6
Tx_Fault
C1
R2
DATA & CLK
DC Coupling
CLK +
R1
CLK -
TD +
TD -
Normal Operation with Open: Pull-down
Shutdown Operation with Open: Pull-up
Mod_def 2
Mod_def 1
R128
R127
R123
R124
Tx_Disable
R5
R3 = R4 = R5 = R6 = 4.7k10k
L1: Ferrite Bead (Murata BLM18BD102)
fpd = 1/ (2**RPD*CPD) = 1kHz10kHz
R1 = 10 +/- 1%
R2 = 12k +/- 1%
C1 = 1uF
C12=C14=C16=C18=C20 = 0.01uF or 0.001uF
C11=C13=C15=C17=C19 = 0.1uF
R121 = R123 = R125 = R127 = 130
R122 = R124 = R126 = R128 = 82
R125
R126
R4
R122
R3
R121
CLKP
SEL
CLKN
DATAP
DATAN
[AK2573A]
2004/5