TZA3041 PHILIPS [NXP Semiconductors], TZA3041 Datasheet - Page 21

• Manufacturer Part Number: TZA3041
• Description: Gigabit Ethernet/Fibre Channel laser drivers
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
APPLICATION INFORMATION
2002 Aug 13
handbook, full pagewidth
Gigabit Ethernet/Fibre Channel laser
drivers
(1) Ferrite bead e.g. Murata BLM31A601S.
(2) C5 is required to meet the minimum capacitance value on pin MONIN (optional, see Section “Automatic laser control”).
(3) C6 enhances modulation control loop time constant (optional).
(4) C7 enhances bias control loop time constant (optional).
(5) R1 and R2 are used for setting optical 0 and optical 1 reference currents (see Section “Automatic laser control”).
(6) R3 and R4 are used for setting minimum and maximum bias currents (see Section “Bias alarm for TZA3041AHL”).
(7) Z1 is required for balancing the output stage (see Section “Power supply connections”).
Fig.18 Application diagram with the TZA3041AHL configured for 1.2 Gbits/s (Gigabit Ethernet/Fibre Channel).
V CC
1 F
C1
C5
(2)
22 nF
C6
C7
(1)
(1)
(1)
C8
(3)
(4)
TZERO
MONIN
BGAP
TONE
C2
22 nF
C3
22 nF
C4
22 nF
2
4
5
6
7
V CC(G)
1, 3, 8, 9, 11,
14, 16, 17,
24, 25, 32
11
10
V CC(B)
GND
19, 20,
27, 30
4
TZA3041AHL
MPD
V CC(R)
15
BIAS
L1
R5
18
31
(CML/PECL compatible)
ALS
13
21
LA
normal mode
data inputs
29
DINQ
12
28
LAQ
Z1
DIN
(7)
laser
TZA3041AHL; TZA3041BHL;
23
22
21
18
26
ALARM
ZERO
ONE
ALARMLO
ALARMHI
C9
R1
(5)
R2
(5)
Product specification
R3
TZA3041U
(6)
MBK877
R4
(6)