tza3014 NXP Semiconductors, tza3014 Datasheet - Page 12

• Manufacturer Part Number: tza3014
• Description: 2.5 Gbits/s Postamplifier With Level Detector
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Supply current
For the supply current I
Using a positive supply voltage
Although the TZA3014 has been designed to use a single
taken with respect to RF transmission lines. The on-chip
signals refer to the various V
transmission lines will most likely be referred to the
pins GNDA and GNDB, being the system ground.
The RF signals will change from one reference plane to
another when interfacing the RF inputs and outputs.
A positive supply application is very vulnerable to
interference with respect to this point. For a successful
+3.3 V application, special care should be taken when
designing the PCB layout in order to reduce the influence
of interference and to keep the positive supply voltage as
clean as possible.
2001 Jun 25
handbook, halfpage
3.3 V supply voltage (see Fig.11), some care should be
2.5 Gbits/s postamplifier with level detector
V
V
CC
CC
V
V
EE
EE
a. Positive supply and positive logic.
< 7 V.
< 7 V.
TZA3014
5 k
CCB
, see Fig.10.
CC
LOS
GNDA
handbook, halfpage
pins. The external
MGU132
c. Negative supply and negative logic.
56 k
Fig.9 Loss of signal output pin LOS.
I LOS
TZA3014
V CC
GND
5 k
12
LOS
GNDA
handbook, halfpage
(1) T
Fig.10 Supply current as a function of the output
GND
I CCB
(mA)
MGU130
amb
56 k
b. Negative supply and positive logic.
= 25 C.
60
50
40
30
20
10
voltage.
I LOS
17
5
0
TZA3014
0
GND
V EE
0.2
5 k
LOS
GNDA
0.5
V o(se)(p-p) (V)
Product specification
MGU131
TZA3014
5.6 k
I LOS
(1)
0.8
V CC
V EE
MGU133
1