w i r e l e s s c o m m u n i c a t i o n s TQ9114 if/agc amplifier features n 30 C 500 mhz operation n 30 db gain @ 100 mhz n 60 db agc range n single + 5 v supply n 3.1 ma supply current n so-8 plastic package applications n gps (global positioning systems) n cellular communications n spread-spectrum receivers t r i q u i n t s e m i c o n d u c t o r , i n c . the TQ9114 if/agc (intermediate frequency/automatic gain control) amplifier is part of triquint's rfic downconverter building block family. intended for use as an automatic gain control amplifier in an if stage, a wide range of gain control is available. the TQ9114 provides wide-bandwidth operation from a standard +5 v power supply. its low current consumption and small, plastic surface-mount package are ideally suited for low-cost hand-held and battery-powered applications. 2 - 9 ics v gnd out gnd agc TQ9114 7 6 5 8 v gnd in gnd dd 2 3 4 1 electrical specifications test conditions: v dd = +5 v, t a = 25 c, frequency = 100 mhz parameter (1) min. typ. max. units frequency of operation 30 500 mhz gain mhz 27 30 db agc range (2) 50 60 db dc supply current 3.1 4.5 ma gain control voltage 0 5 v note: 1. min/max values listed are production tested. 2. v agc = 0 v, max. gain; v agc = +5 v, min. gain 3. voltages which produce min. and max. gain www.datasheet.in
2 - 10 TQ9114 parameters condition min. typ. max. units frequency of operation 30 500 mhz gain freq. = 100 mhz 27 30 db gain freq. = 500 mhz 17 21 db gain control range max. gain = 30 db 60 db noise figure 50 w system 6.0 db output 3rd order intercept -5 dbm output 1db compression -15 dbm gain control voltage 0 5 v supply current 3.1 4.5 ma supply voltage 4.5 5.0 5.5 v electrical specifications test conditions: v dd = 5 v, t a = 25 c, frequency = 100 mhz v out agc TQ9114 7 6 5 8 v in dd 2 3 4 1 .01 m f 20 w
(optional) .01 m f test circuit www.datasheet.in
2 - 11 TQ9114 ics input and output impedance freq (mhz) | s11 | e s11 | s21 | e s21 | s12 | 2 - 12 TQ9114 gain/nf (db) 35
30
25
20
15
10
5
0 0 50 100 150 200 250 300 350 400 450 500 frequency (mhz) -40? +25? +85? noise figure gain 0 50 100 150 200 250 300 350 400 450 500 0
-2
-4
-6
-8
-10
-12
-14
-16
-18 output power (dbm) frequency (mhz) ip3 p1db -40? +25? +85? agc voltage gain (db) -40? +25? +85? 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 50 mhz 40
30
20
10
0
-10
-20
-30
-40
-50 1 k 1 4 3 2 8 5 6 7 i = 5.0 ma .01 ? out v agc dd 1 4 3 2 8 5 6 7 i = 3.1 ma .01 ? out v agc dd p1db ip3 10
5
0
-5
-10
-15
-20 0 100 200 300 400 500 output power (dbm) ip3 w/rl=1k ip3 w/o rl p1db w/rl= 1k p1db w/o rl frequency (mhz) p1db and ip3 vs. frequency vs. load resistor p1db and ip3 vs. frequency vs. temperature increased-dynamic-range output circuit standard output circuit agc transfer curve vs. temperature gain / nf vs. frequency vs. temperature www.datasheet.in
2 - 13 TQ9114 ics pin name pin # description v dd 1 +5 v power supply. decouple with 0.01 uf within 0.25 inch of package. in 3 input is dc-blocked. vswr and gain may be improved with external impedance matching, if desired. v agc 8 gain control input. 0 v = maximum gain, +5 v = minimum gain. slope of gain vs. voltage transfer function can be decreased by the addition of a series resistance in the v agc line. (see schematic.) gnd 2, 4, 5, 7 ground connection. keep physically short for stability and performance. pins are internally connected. note: refer to block diagram for pin location pin descriptions TQ9114 pinout vagc
gnd
out
gnd vdd
gnd
in
gnd TQ9114 7 6 5 8 2 3 4 1 circuit schematic 2.1 k bias v in out bias dd v 20 k 10 k 20 k 10 k agc www.datasheet.in
parameter min. typ. max. units dc power supply 7 v v agc 7v power dissipation 70 mw input power +10 dbm storage temperature -55 +150 c operating temperature -40 +85 c note: esd-sensitive device - class 1 TQ9114 the information provided herein is believed to be reliable; triquint assumes no responsibility for inaccuracies or omissions. triquint assumes no responsibility for the use of this information, and all such information shall be entirely at the users own risk. prices and specifications are subject to change without notice. no patent rights or licenses to any of the circuits described herein are implied or granted to any third party. triquint does not authorize or warrant any triquint product for use in life-support devices and/or systems. copyright ? 1995 triquint semiconductor, inc. all rights reserved. revision b.1, june 8, 1995 .199 in
?010 .164 in
?014 .236 in
?008 absolute maximum ratings so-8 plastic package (n suffix) .0075
+.0045 .050
typ .0165 +.0035 4? ? .061
?008 .164
?014 .236
?008 .0325
?0175 .0075
?0045 www.datasheet.in
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