AK2571 Datasheet, PDF (50/52 Pages) Asahi Kasei Microsystems – Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes

AKM Confidential
AK2571
Pin / Function
Pin# Pin name
Function
Note
1
TEST1
AKM Test pin. Connect to GND .
2
IOUT4H
I-DAC4 output(50mA max).TEC control (Heating)
3
NC
NC pin. Connect to GND.
4
IOUT4C
I-DAC4 output (50mA max). TEC control (Cooling)
5
NC
NC pin. Connect to GND.
6
IOUT3
I-DAC3 output (20mA max). LD drive
7
L2VDD
Voltage supply for I-DAC2 and 3
8
IOUT2
I-DAC2 output (20mA max). LD drive
9
LVSS
I-DAC GND
10
NC
NC pin. Connect to GND.
11
NC
NC pin. Connect to GND.
12
IOUT1
I-DAC1 output (120mA max). LD drive
13
WAVE1
14
WAVE0
Wavelength select. Switch EEPROM space.
15
SHUT_APCN Shut down APC. ”L” = Shut down.
16
SHUT_ATCN Shut down ATC and APC. ”L” = Shut down.
17
RESETN
Reset input. ”L”= reset
18
TSK
AKM Test pin. Connect to GND in ordinary
19
TDI
20
L1VDD
Voltage supply for I-DAC1
21
NC
NC pin. Connect to GND.
22
PDIN
Monitors PD voltage input. PD current is averaged by the external
resistor and capacitor input.
23
PDMON
Output gained thermister voltage
24
TESTA
AKM Test pin. Connect to GND in ordinary
25
TEMPIN
Input voltage from the thermister; divided by an external resistor.
26
REFOUT
Supply reference voltage for the thermister.
27
AVDD
Voltage supply for analog circuit.
28
NC
NC pin. Connect to GND.
29
AVSS
GND for analog circuit.
30
BIAS
Set the internal BIAS currents. Connect 12kΩ±1% to GND.
31
AMON
Outputs analog monitor signals through the DAC. Internal digital signal
monitoring by analog.
32
NC
NC pin. Connect to GND.
33
CSN
Chip select
34
NC
NC pin. Connect to GND.
35
READY
Output = “L” when writing to the EEPROM .
36
DO
Data output
37
NC
NC pin. Connect to GND.
38
DI
Data input
39
SK
Serial clock input
40
DAVSS
GND for digital substrate. Connect to GND.
41
DVDD
Voltage supply for digital circuit
42
NC
NC pin. Connect to GND.
<Rev. 0.6E Preliminary>
-50-
2001/11