TAT8857-EB View Datasheet(PDF) - TriQuint Semiconductor
Part Name
Description
Manufacturer
TAT8857-EB Datasheet PDF : 8 Pages
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TAT8857
CATV Doubler – Hybrid RFIC
In the 24V case the voltage split ratio is left to the customer and is set by Vgate. In 24v applications, no capacitance should be
put on Vgate; this prevents a turn-on over-voltage condition from damaging the output FET.
J1
+24v
L20 910nH
Vbias
L9 82nH C9 82pF
GND
C24
.033uF
C25
.033uF
R18
2.7K
Vgate
Voltage divider should be done with same or
uF
C13 0.01uF
C15 2.2pF
R9 100 C11 0.01u
pF
1
8.09k2
LIN ADJ A
16
BIAS 2A
UPPER A
15
L11
470nH
L13
R20
33
R13
L15
9nH
R15
43
C17
0.5pF
R19
2K
lower resistor values to prevent gate leakage
currents in the output FET from affecting
Vgate.
3
600
4
2
5
2
600 6
.09k 7
8
7pF
k
LOWER A
BIAS 1A
U1
14
13
GATE A
27nH
1.3k
R11 18
L19 600
L17
8.2nH
T2
2 to 1
2 BALUN
OUT1 IN 1
L30
3.9nH
C2
.01uF
TAT888587D 57F3
12
BIAS 1B
GATE B
LOWER B
11
10
1
R12 18
L14
2
Vgate
R14
L18
8.2nH
SEC PRI
3
OUT2 GND 4
MABA-007681
-CT2010
Vbias
C22
.01uF
RF
OUT
LIN ADJ B
UPPER B
9
27nH
1.3k
43
0.5pF
AddBIiASt2iBonal information can Rb16e reqCu18ested from TriQuint Applications Engineering, sjcapplications.engineering@tqs.com.
R10 100 C12 0.01u
L12
R21
470nH
33
L16
9nH
uF
L10 82nH C10 82pF
C14 0.01uF
2.2pF
C16
Data Sheet: Rev C 06-05-12
© 2012 TriQuint Semiconductor, Inc.
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Disclaimer: Subject to change without notice
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