Philips Semiconductors
SDH/SONET STM4/OC12 laser drivers
Product specification
TZA3001AHL; TZA3001BHL;
TZA3001U
PINNING
SYMBOL
GND
MONIN
GND
IGM
TONE
PIN
TZA3001AHL TZA3001BHL
1
1
2
2
3
3
−
−
4
4
TZERO
5
5
BGAP
6
6
VCC(G)
7
7
VCC(G)
−
−
GND
8
8
GND
9
9
VCC(B)
10
10
VCC(B)
−
−
GND
11
11
LAQ
12
12
LA
13
13
GND
14
14
BIAS
15
15
GND
16
16
GND
17
17
GND
−
−
ALARMHI
18
−
VCC(R)
−
18
VCC(R)
19
−
DLOOP
−
19
VCC(R)
20
−
DLOOPQ
−
20
VCC(R)
−
−
ALARMLO
21
−
VCC(R)
−
21
ONE
22
22
ZERO
23
23
GND
24
24
GND
25
25
ALARM
26
−
ENL
−
26
VCC(R)
27
27
PAD
TZA3001U
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
−
24
−
25
26
27
−
28
29
30
31
32
33
34
DESCRIPTION
ground
monitor photodiode current input
ground
not connected
connection for external capacitor used for setting
optical 1 control loop time constant (optional)
connection for external capacitor used for setting
optical 0 control loop time constant (optional)
connection for external band gap decoupling capacitor
supply voltage (green domain); note 1
supply voltage (green domain); note 1
ground
ground
supply voltage (blue domain); note 2
supply voltage (blue domain); note 2
ground
laser modulation output inverted
laser modulation output
ground
laser bias current output
ground
ground
ground
maximum bias current alarm reference level input
supply voltage (red domain); note 3
supply voltage (red domain); note 3
loop mode data input
supply voltage (red domain); note 3
loop mode data input inverted
supply voltage (red domain); note 3
minimum bias current alarm reference level input
supply voltage (red domain); note 3
optical 1 reference level input
optical 0 reference level input
ground
ground
alarm output
loop mode enable input
supply voltage (red domain); note 3
2002 Aug 13
4