tza3019 NXP Semiconductors, tza3019 Datasheet - Page 14

• Manufacturer Part Number: tza3019
• Description: 2.5 Gbits/s Dual Postamplifier With Level Detectors And 2 X 2 Switch
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Supply current
For the supply currents I
Using a positive supply voltage
Although the TZA3019 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 V
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.13), some care should be
2.5 Gbits/s dual postamplifier with level
detectors and 2
V
CC
GND1A
V
EE
a. Positive supply and positive logic.
, V
TZA3019
< 7 V.
GND2A
, V
5 k
GND1B
CC1B
CC
2 switch
handbook, halfpage
and I
and V
LOS1,
LOS2
GND1A,
GND2A
pins. The external
Fig.11 Loss of signal output pins LOS1 and LOS2.
CC2B
GND2B
MGS563
c. Negative supply and negative logic.
, see Fig.0.
56 k
I LOS
TZA3019
, being the
V CC
GND
5 k
14
LOS1,
LOS2
GND1A,
GND2A
handbook, halfpage
I CC1B,
I CC2B
(1) I
Fig.0
(mA)
GND
MGS561
CC1B
b. Negative supply and positive logic.
56 k
60
50
40
30
20
10
I LOS
17
58
5
0
and I
Supply current as a function of output
voltage.
TZA3019
0
GND
V EE
CC2B
0.2
at T
amb
5 k
= 25 C.
LOS1,
LOS2
GND1A,
GND2A
0.5
V o(se)(p-p) (V)
Product specification
MGS562
5.6 k
I LOS
TZA3019
0.8
V CC
V EE
(1)
MGS566
1