tza3031ahl NXP Semiconductors, tza3031ahl Datasheet - Page 22

• Manufacturer Part Number: tza3031ahl
• Description: Sdh/sonet Stm1/oc3 Laser Drivers
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2002 Aug 13
handbook, full pagewidth
SDH/SONET STM1/OC3 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) Z1 is required for balancing the output stage (see Section “Power supply connections”).
V CC
1 F
Fig.19 Application diagram showing the TZA3031BHL configured for 155 Mbits/s (STM1/OC3).
C1
C5
(2)
22 nF
C6
C7
(1)
(1)
(1)
C8
(3)
(4)
TZERO
MONIN
TONE
BGAP
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
18, 21,
27, 30
4
TZA3031BHL
MPD
V CC(R)
15
BIAS
L1
R3
18
31
(CML/PECL compatible)
ALS
22
13
normal mode
LA
data inputs
29
DINQ
12
28
LAQ
Z1
DIN
(6)
laser
TZA3031AHL; TZA3031BHL;
26
23
22
20
19
ENL
ZERO
ONE
DLOOPQ
DLOOP
C9
R1
(5)
loop mode inputs
(CML/PECL
compatible)
R2
(5)
Product specification
TZA3031U
MBK847