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Part: OQ2545HP/C1
Category:
Communication
-> Network
Description: Sdh/sonet Stm16/oc48 Laser Drivers
Company: Philips Semiconductors
Datasheet: Download OQ2545HP/C1 datasheet File size : 68 kB
Request For quote: Find where to buy OQ2545HP/C1
Datasheet text preview:
INTEGRATED CIRCUITS
DATA SHEET
OQ2545HP; OQ2545BHP SDH/SONET STM16/OC48 laser drivers
Product specification Supersedes data of 1997 Nov 27 File under Integrated Circuits, IC19 1999 Aug 24
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 laser drivers
FEATURES · Differential 50 inputs for direct connection to Current-Mode Logic (CML) outputs · Internal retiming to minimize jitter (OQ2545HP only) · Input clock phase margin of 320° at 2.5 Gbits/s (OQ2545HP only) · RF output current sinking capability of 60 mA · Bias output current sinking capability of 100 mA · TTL compatible control inputs · Loop mode for system testing · Continuous output monitoring · Power dissipation <1500 mW (for typical application) · Low cost LQFP48 plastic package. APPLICATIONS · Digital fibre optical modulation driver in STM16/OC48 short, medium and long haul optical transmission systems · Optical modulation driver in high-speed data networks · High current driver for electro-optical converters · High current electrical line driver. ORDERING INFORMATION TYPE NUMBER OQ2545HP OQ2545BHP PACKAGE NAME LQFP48 DESCRIPTION
OQ2545HP; OQ2545BHP
GENERAL DESCRIPTION The OQ2545 is a driver IC intended to be used with a directly modulated laser diode or with an Electro Absorption Modulator (EAM) in SDH/SONET 2.5 Gbits/s optical transmission systems. The IC features differential data inputs. Loop mode inputs are provided for system testing, along with an output for continuous monitoring. In addition, the OQ2545HP features differential clock inputs for internal retiming resulting in a better jitter performance. The IC has bias and modulating current outputs, the levels of which can be set separately. As an additional safety measure, the active HIGH-level input for automatic laser shutdown (pin ALS) can be used to switch off the laser modulation and bias currents. Although the IC is intended for 2.5 Gbits/s optical transmission systems, it can be used in any application requiring high current drive at high frequencies. The IC is transparent from input to output.
VERSION SOT313-2
plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm
1999 Aug 24
2
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 laser drivers
BLOCK DIAGRAMS
OQ2545HP; OQ2545BHP
handbook, full pagewidth
DIOA
3 33 34 22
DIGITAL SECTION
ANALOG SECTION
40 39
MON MONQ IBIAS
DIN DINQ DLOOP DLOOPQ
MONITOR BUFFER
10
19
21
OQ2545HP
FF PREAMPLIFIER EMITTER FOLLOWERS
SIBIAS
CIN CINQ CLOOP CLOOPQ
30 31 28 27
MODULATION DRIVER
5, 6 7, 8
LA LAQ
18 SIMOD BAND GAP REFERENCE 43 BGCAP 45 ENL 17 SMOD 42 VEE1 16 AMPADJ 15 EFADJ 44 ALS
(1) (2)
46
MGK368
8 VEE2
14 GND VCC
(1) Pins 1, 12, 13, 24, 25, 36, 37 and 48. (2) Pins 2, 4, 9, 11, 14, 20, 23, 26, 29, 32, 35, 38, 41 and 47.
Fig.1 Block diagram of OQ2545HP.
1999 Aug 24
3
Others parts begin by oq
OQ-1
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