Philips Semiconductors
2.5 Gbits/s dual postamplifier with level
detectors and 2 × 2 switch
handbook, full pagewidth
GND1A,
GND2A
R1
100 Ω
LEVEL1,
LEVEL2 Vlevel
GND1B,
GND2B
100 Ω OUT1,
OUT2
Vo
OUT1Q,
OUT2Q
R2
Vref
REG
0
Vlevel
Vo
(V)
Vlevel = 0.5 × Vo(se)(p-p).
Vlevel = Vref × R-----1---R--+---1--R-----2-- .
Level detector in power-down mode: VLEVEL1 or VLEVEL2 = VGND.
a. DC-coupling.
handbook, full pagewidth
GND1A,
GND2A
GND1B,
GND2B
100 Ω
R1
LEVEL1,
LEVEL2 Vlevel
R2
Vref
REG
100 Ω OUT1,
OUT2
Vo
OUT1Q,
OUT2Q
0
Vlevel
Vo
(V)
Vlevel = 1.5 × Vo(se)(p-p).
Vlevel = Vref × R-----1---R--+---1--R-----2-- .
Level detector in power-down mode: VLEVEL1 or VLEVEL2 = VGND.
b. AC-coupling.
Fig.7 RF output configurations.
2000 Apr 10
10
Preliminary specification
TZA3019
50 50
ΩΩ
Vo(se)(p-p)
MGS556
50 50
ΩΩ
Vo(se)(p-p)
MGL811