DS1861B+ Maxim Integrated Products, DS1861B+ Datasheet - Page 18

• Manufacturer Part Number: DS1861B+
• Description: IC LASR CTRLR 1CHAN 5.5V 16CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controller (Fiber Optic)r

Specifications of DS1861B+

• Number Of Channels: 1
• Voltage - Supply: 2.85 V ~ 5.5 V
• Current - Supply: 5mA
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 16-CSBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Full Laser Control with Fault Management
Note: 0 indicates an unused bit that reads as 0.
18
ADDR
BYTE
ADDR
BASE
7Bh
7Dh
B2h
B4h
B5h
B7h
B8h
B9h
BAh
C3h
C5h
D1h
D6h
78h
B0h
B8h
C0h
D0h
78h
KEY:
____________________________________________________________________
High BIAS Alarm
Alarm Threshold
Alarm Threshold
I
I
DAC Codes
APC Config
BYTE NAME
BIASSET
MODSET
Fast Comp
Password
Password
MODLOAD
PWE High
High TX-P
Threshold
PWE Low
Low TX-P
NAME
PW High
PW Low
ROW
Control
Entry
ER (N)
Status
APC
Code
Code
SRAM
Threshold
BYTE 0/8
Reserved
Reserved
User EE
Status
HTXP
bit
MODLOAD
2
2
2
2
2
2
Shutdown
31
15
11
31
15
11
15
GAIN2
Enable
BIT 7
RSEL
WORD 0
Flag
EE
EE
2
2
7
7
bit
2
2
2
2
2
2
Threshold
BYTE 1/9
Reserved
User EE
I
30
14
10
30
14
10
14
BIASSET
SRAM
Code
LTXP
bit
Shutdown
2
2
2
2
2
2
29
13
29
13
Enable
13
GAIN1
9
9
HTXP
HTXP
EEPROM
BIT 6
EE
EE
2
2
2
6
6
6
BYTE 2/A
Threshold
bit
Reserved
Reserved
2
2
2
2
2
2
HBIAS
SRAM
28
12
28
12
APC
12
8
8
EXPANDED BYTES
WORD 1
bit
Shutdown
2
2
2
2
2
2
27
11
27
11
11
7
Enable
7
GAIN0
BIT 5
LTXP
LTXP
EE
EE
2
2
2
BYTE 3/B
Reserved
5
5
5
User EE
User EE
bit
2
2
2
2
2
2
26
10
26
10
10
6
6
PWE High
PW High
bit
Shutdown
2
2
2
2
2
2
Enable
HBIAS
HBIAS
25
25
BIT 4
9
5
9
5
9
EE
EE
2
2
2
2
BYTE 4/C
Reserved
4
4
4
4
User EE
bit
2
2
ER (N)
2
2
2
2
24
24
8
4
8
4
8
bit
2
2
WORD 2
2
2
2
2
23
23
DPOL
7
3
BIT 3
7
3
7
POA
EE
EE
2
2
2
2
3
3
3
3
bit
2
2
2
2
2
BYTE 5/D
2
Reserved
22
22
6
2
User EE
6
2
DS1861 Memory Map
6
bit
2
2
2
2
2
2
MODLOAD
21
5
1
21
PWE Low
5
Alarm
5
1
BIT 2
HTXP
TX-D
PW Low
Soft
2
2
2
2
2
2
2
2
2
2
2
2
bit
2
2
2
2
2
2
20
4
0
20
4
4
0
BYTE 6/E
User EE
bit
2
EE
2
2
2
I
Disable
0
MODSET
19
19
Alarm
Excite
3
3
BIT 1
LTXP
3
WORD 3
2
2
2
2
2
2
1
1
1
1
1
1
bit
2
EE
2
2
2
0
18
18
2
2
2
Code
BYTE 7/F
Reserved
Reserved
User EE
Control
bit
2
EE
2
2
2
0
HBIAS
17
17
Alarm
BIT 0
HALT
1
1
1
2
2
2
2
2
2
0
0
0
0
0
0
bit
2
EE
2
2
2
0
16
16
0
0
0