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TZA3019AVH

2.5 Gbits/s dual postamplifier with level detectors and 2 × 2 switch

Philips Electronics 

Philips Semiconductors

2.5 Gbits/s dual postamplifier with level

detectors and 2 × 2 switch

Product specification

TZA3019

FEATURES

• Dual postamplifier

• Single 3.3 V power supply

• Wideband operation from 50 kHz to 2.5 GHz (typical

value)

• Fully differential

• Channels are delay matched

• On-chip DC-offset compensations without external

capacitor

• Interfacing with positive or negative supplied logic

• Switching possibility between channels

• Positive Emitter Coupled Logic (PECL) or Current-Mode

Logic (CML) compatible data outputs adjustable from

200 to 800 mV (p-p) single-ended

• Power-down capability for unused outputs and detectors

• Rise and fall times 80 ps (typical value)

• Possibility to invert the output of each channel

separately

• Input level-detection circuits for Received Signal

Strength Indicator (RSSI) or Loss Of Signal (LOS)

detection, programmable from 0.4 to 400 mV (p-p)

single-ended, with open-drain comparator output for

direct interfacing with positive or negative logic

• Reference voltage for output level and LOS adjustment

• Automatic strongest input signal switch possibility

(TZA3019 version B)

• HTQFP32 or HBCC32 plastic package with exposed

pad.

APPLICATIONS

• Postamplifier for Synchronous Digital Hierarchy and

Synchronous Optical Network (SDH/SONET)

transponder

• SDH/SONET wavelength converter

• Crosspoint or channel switch

• PECL driver

• Fibre channel arbitrated loop

• Protection ring

• Monitoring

• Signal level detectors

• Swing converter CML 200 mV (p-p) to

PECL 800 mV (p-p)

• Port bypass circuit

• 2.5 GHz clock amplification.

GENERAL DESCRIPTION

The TZA3019 is a low gain postamplifier multiplexer with a

dual RSSI and/or LOS detector that is designed for use in

critical signal path control applications, such as

loop-through, redundant channel switching or Wavelength

Division Multiplexing (WDM). The signal path is

unregistered, so no clock is required for the data inputs.

The signal path is fully differential and delay matched. It is

capable of operating from 50 kHz to 2.5 GHz.

The TZA3019 HTQFP32 and HBCC32 packages can be

delivered in three versions:

• TZA3019AHT and TZA3019AVH with two RSSI signals

• TZA3019BHT and TZA3019BVH with one RSSI and

one LOS signal

• TZA3019CHT and TZA3019CVH with two LOS signals.

ORDERING INFORMATION

TYPE

NUMBER

TZA3019AHT

TZA3019BHT

TZA3019CHT

TZA3019AVH

TZA3019BVH

TZA3019CVH

TZA3019U

NAME

HTQFP32

HTQFP32

HTQFP32

HBCC32

HBCC32

HBCC32

−

PACKAGE

DESCRIPTION

plastic, heatsink thin quad flat package; 32 leads; body 5 × 5 × 1.0 mm

plastic, heatsink thin quad flat package; 32 leads; body 5 × 5 × 1.0 mm

plastic, heatsink thin quad flat package; 32 leads; body 5 × 5 × 1.0 mm

plastic, heatsink bottom chip carrier; 32 terminals; body 5 × 5 × 0.65 mm

plastic, heatsink bottom chip carrier; 32 terminals; body 5 × 5 × 0.65 mm

plastic, heatsink bottom chip carrier; 32 terminals; body 5 × 5 × 0.65 mm

bare die; 2.22 × 2.22 × 0.28 mm

VERSION

SOT547-2

SOT547-2

SOT547-2

SOT560-1

SOT560-1

SOT560-1

−

2001 Jun 25

2

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