TZA3033 Datasheet PDF - NXP Semiconductors
| Part Number | TZA3033 | |
| Description | SDH/SONET STM1/OC3 transimpedance amplifier | |
| Manufacturers | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TZA3033
SDH/SONET STM1/OC3
transimpedance amplifier
Objective specification
File under Integrated Circuits, IC19
1998 Jul 08
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Philips Semiconductors
SDH/SONET STM1/OC3 transimpedance amplifier
Objective specification
TZA3033
Pad centre locations
SYMBOL
DREF
TESTA
GND
GND
IPhoto
TESTB
GND
GND
GND
GND
OUT
OUTQ
VCC
VCC
AGC
PAD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
COORDINATES(1)
xy
95 881
95 735
95 618
95 473
95 285
95 147
215 95
360 95
549 95
691 95
785 501
785 641
567 1055
424 1055
259 1055
Note
1. All coordinates (µm) are measured with respect to the
bottom left-hand corner of the die.
FUNCTIONAL DESCRIPTION
The TZA3033 is a transimpedance amplifier intended for
use in fibre optic links for signal recovery in STM1/OC3
applications. It amplifies the current generated by a photo
detector (PIN diode or avalanche photodiode) and
transforms it into a differential output voltage. The most
important characteristics of the TZA3033 are high receiver
sensitivity and wide dynamic range.
High receiver sensitivity is achieved by minimizing noise in
the transimpedance amplifier.
The signal current generated by a PIN diode can vary
between 0.25 µA to 1.6 mA (peak-to-peak value).
An AGC loop (see Fig.1) is implemented to make it
possible to handle such a wide dynamic range.
The AGC loop increases the dynamic range of the
receiver by reducing the feedback resistance of the
preamplifier. The AGC loop hold capacitor is integrated
on-chip, so an external capacitor is not needed for AGC.
The AGC voltage can be monitored at pad 15 on the naked
die (TZA3033U). Pad 15 is not bonded in the packaged
device (TZA3033T). This pad can be left unconnected
during normal operation. It can also be used to force an
external AGC voltage. If pad 15 (AGC) is connected to
VCC, the internal AGC loop is disabled and the receiver
gain is at a maximum. The maximum input current is then
about 10 µA.
A differential amplifier converts the output of the
preamplifier to a differential voltage. The data output circuit
is given in Fig.4.
The logic level symbol definitions are shown in Fig.5.
1998 Jul 08
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TZA3033 electronic component. |
| Information | Total 16 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ TZA3033.PDF Datasheet ] | |
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