Datasheet

iC-NZN
N-TYPE LASER DIODE DRIVER
Rev C1, Page 10/17
LDA MONITOR
+
-
Bandgap, Reference, Overtemp
VDD
VDD
OverTemp.
OverCurrent
Low V(LDA)
INPUT INTERFACE
OUTPUT DRIVER
OUTPUT MONITOR
0.68..
..10 nF..
100 nF..
9kΩ
100 nF..
LVDS/TTL
iC-NZN
x240
i(RSI)x540
CI
RGND
CIS
T.PAD
AGND
RVDD
SYN
VSY
VDD
RSI
GND
LDK
MD
LDA
NSLP
REGE
NERR
AVG
CID
IMON
TTL
EN
EP
RMD
CI
..300mA
1
&
PMD
P
&
1
+
-
CLDA
REF
ECI
CVDD
+3..+5.5V
ECI
GND
RSI
1
RMD
CI
..300mA
PMD
P
&
RSI
1
&
Figure 4: Circuit example for P-type laser diodes.
M-type diodes
INPUT INTERFACE
CI
100 nF..
100 nF..
CLDA
..10 nF..
LDA
+
VDD
&
RSI
TTL
-
GND
RMD
Bandgap, Reference, Overtemp
OverCurrent
EP
VSY
CVDD
OverTemp.
RSI
REGE
i(RSI)x540
0.68..
OUTPUT DRIVER
..300mA
CI
EN
CID
NERR
x240
VDD
PMD
M
OUTPUT MONITOR
CIS
REF
NSLP
RMD
AVG
IMON
1
-
&
RSI
1
RGND
&
T.PAD
GND
LDK
RVDD
Low V(LDA)
MD
+3..+5.5V
CI
ECI
AGND
PMD
..300mA
1
ECI
LDA MONITOR
iC-NZN
+
1
VDD
9kΩ
LVDS/TTL
SYN
&
M
Figure 5: Circuit example for M-type laser diodes
Althought this type of laser diode are supported by iC-
NZN, it’s strongly recommended to use iC-NZP instead
since in this configuration, all the pulses at LDK will be
coupled directly to pin MD due to monitor diode’s in-
ternal capacitance, thus making an accurate control
much more difficult. Moreover, applications with M-
type laser diode case grounded are possible with iC-
NZP only.