u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 1 (9) tv-tuner ic with two separate oscillators and mixers, lo output and band switch input description this tuner ic requires a power supply of 12 v and performs the function of two separate oscillators and mixers, dual state band switch and lo output in a small so16 plastic package. features band a (vhf); low resistance symmetrical mixer input in common-base connection and 2-pin oscillator band b (uhf); low resistance symmetrical mixer input in common-base connection and 4-pin oscillator decoupled symmetrical lo output for frequency divider or pll, one output is a simultaneous band- switch input voltage stabilization to avoid operating voltage de- pendency esd protection at all pins except for rf inputs and oscillator pins package: so16 block diagram 11 12 13 14 osc. b 35 osc. a band switch 8 7 10 9 band a band b voltage stabil. 6 16 15 12 4 1257 3 figure 1. block diagram
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 2 (9) pin description 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 osc a, base gnd 95 10929 osc a, coll. v s band sw. band sw. rf in, b rf in, b osc b, base 2 osc b, coll. 1 osc b, coll. 2 osc b, base 1 mix out mix out rf in, a rf in, a figure 2. pinning pin symbol function 1, 2 rf in, b rf inputs, band b 3 osc a, base oscillator band a, base 4 gnd ground 5 osc a, coll. oscillator band a, collector 6 v s supply voltage 7 and/or 8 band sw. band switch input 7, 8 lo outputs 9, 10 mix out mixer outputs, open collector 11 12 13 14 osc b, base 1 osc b, coll. 2 osc b, coll. 1 osc b. base 2 oscillator band b, base 1 collector 2 collector 1 base 2 15, 16 rf in, a rf inputs, band a absolute maximum ratings reference point pin 4, unless otherwise specified parameters symbol value unit supply voltage pin 6 v s 13.5 v switching current pin 7 i sw 1 ma rf inputs pins 1, 2, 15 and 16 v e 5 v if outputs pins 9 and 10 v if 13.5 v power dissipation p tot 450 mw junction temperature t j 125 c ambient temperature range t amb 25 to +80 c storage temperature range t stg 25 to +125 c thermal resistance junction ambient 1) parameters symbol typ unit mounted without glue r thja 110 k/w mounted with glue r thja 100 k/w 1) measured on a glass fibre printed circuit board 40 x 40 x 1.5 mm 3 with 35 m cu coating r(th) so16 u2321b
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 3 (9) electrical characteristics t amb = 25 c, v s = 12 v, reference point: pin 4, unless otherwise specified parameters test conditions / pins symbol min typ max unit supply voltage pin 6 v s 10.8 12.0 13.2 v supply current pins 6 + 9 + 10 i s 30 ma band switch thresholds pins 7 + 8 band b (uhf) band a (vhf) (v 7/8 is approximately 7 v. the current can be taken from one or both pins). i band 0 250 50 a a lo level (per output) r l = 50 pins 7, 8 p lo 20 27 dbmv lo output, harmonic spacing (referred to the fundamental wave) 10 dbc crosstalk rf input (sym.) to the lo (sym.) (referred to the funda- mental wave of the lo) v e = 150 mv eff 40 35 dbc for these lo measurements, the output must also be terminated with a balun (2 x 50 as input and 50 asym- metrical to the measurement receiver). if this circuit configuration is also used for measuring the lo level, the value obtained is 6 db higher. refer to page 7 for notes and explanations relating to the table above. electrical characteristics band a parameters test conditions / pins symbol min. typ. max. unit frequency range f e 48 470 mhz input impedance pins 15, 16 s 11 (see figure 1) gain 1) vhf -> if v p 4 db dsb noise factor f e = 50 mhz f e = 450 mhz f f 9.5 10.0 db db signal to noise ratio v(e) = 80 db v im 3rd order 2) im 2nd order 2) s/n s/n 60 60 db db lo pulling with input signal 80% am f mod = 50 khz v(e) = 80 db v 60 db n + 5 pulling 50 dbc 1) all levels at the vhf and uhf input are available voltages at outputs across 50 . the present voltage is therefore not measured at this point. 2) measured at if output at test circuit page 5.
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 4 (9) electrical characteristics band b parameters test conditions / pins symbol min. typ. max. unit frequency range f e 470 860 mhz input impedance pin 1, 2 s 11 (see figure 1) gain 1) vhf if v p 4 db dsb noise factor f e = 500 mhz f e = 800 mhz f f 10.5 11.5 db db signal-to-noise ratio v (e) = 80 db v im 3rd order 2) im 2nd order 2) s/n s/n 60 60 db db lo pulling with input sig- nal 80% am f mod = 50 khz v(e) = 80 db v 60 db n + 5 pulling 50 dbc 1) all levels at the vhf and uhf input are available voltages at outputs across 50 . the present voltage is therefore not measured at this point. 2) measured at if output at test circuit page 5.
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 5 (9) application and test circuit uhf-oscillator d3 bb729 c4 13 p c5 1 p 0 c6 1 p 5 l4 1.5 turns 2.0 vhf oscillator d1 bb729 d2 ba582 c1 3 p 3 c2 1 p2 c3 68 p l1 1.5 turns 2.5 l2 1.5 turns 2.8 l3 7.5 turns 2.5 16 123 4 u2321b 56 7 8 15 14 13 12 11 10 9 27 pf t1 27 k l4 d 3 c 4 l1 c 1 l2 d 1 1.5 k l3 band switch uhf vhf vhf / uhf 12574 bccb bc 1 nf 1 nf 1 nf bb729 13 pf c 2 1 nf 1 nf 3.3 pf 1.2 pf bb729 d 2 ba582 c 3 68 pf v (d) 180 deg. c 5 c 6 c 7 c 8 1 pf 1 pf 1.5 pf 1.5 pf 1 nf 1 nf if v (b) l.o. 180 deg. 180 deg. v (d) l1: 1.5 turns 2.5 dia l2: 1.5 turns 2.8 dia l3: 7.5 turns 2.5 dia l4: 1.5 turns 2.0 dia figure 3.
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 6 (9) input impedance s 11 0.2j 0.5j j 2j 5j 0 0.2j 0.5j j 2j 5j 0.2 0.5 1 2 5 96 12045 45 mhz 350 mhz 750 mhz 1045 mhz figure 4. input impedance s 11 of the mixer band a (pins 15, 16) and band b (pins 1, 2) the reference resistance is 50 . the measuring range is 45 mhz ( [ ] ) to 1045 mhz. control is symmetrical here. since the hybrid used has an output resistance of 100 , calibration to this value takes place followed by conver- sions to 50 .
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 7 (9) general notes the rf inputs a and b are controlled symmetrically by means of a hybrid with 180 degrees phase rotation. the source impedance is therefore 100 . for rf measure- ments, all other impedances are 50 . the baluns used have an impedance of 50 at all ports, meaning that the symmetrical side has an impedance of 100 . the h-9 from the anzac company is an example of this. since this is a power divider, the losses of approxi- mately 3 db are calculated within the measurement. other possibilities which are more simple to achieve may be a 4:1 transformer (disadvantage: at high frequencies > 600 mhz out of optimum) or a 50 cable with a suffi- cient number of ferrit pearls (disadvantage: at low frequencies out of optimum). however, neither has the impedance of 100 on the symmetrical side. the double sideband noise factor is stated here, which means that the measuremen is performed without rf selection. the source impedance is 100 symmetrical (see above). the n + 5 pulling is measured with an interference carrier interval of 1.1 mhz with respect to the oscillator frequency. the input level of the utilize carrier and the interference carrier is 27 dbm (80 db v) in each case. the interference interval is determined within the intermediate frequency relative to the utilize signal. im 2 test conditions im2: f(interference) = 2 x f(utilize) + 0.5 mhz. example: utilize frequency = 50 mhz, interference frequency = 100.5 mhz. the amplitude modulated im2 is shaped within the intermediate frequency at intervals of 0.5 mhz (see figure 5). im 3 test conditions im3: vhf interference carrier level in the range of +6.5 to 7. mhz, uhf in the range of +7 to 9 mhz. modulation is declared in the case of an oscillator pulling the interval between the lo utilize signal at the lo output and the impressed interference (see figure 6). 80 db v 8 db m = 80% 0.5 mhz im 2 12575 f mod = +50 khz f mod = 50 khz f util. f interf. f rf f if figure 5. im2 measurement 80 db v im 3 12576 f interf.1 f interf.2 f util. f rf f if figure 6. im3 measurement
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 8 (9) package information package: so16 dimensions in mm 94 8875
u2321b-afp telefunken semiconductors rev. a1, 18-sep-96 9 (9) ozone depleting substances policy statement it is the policy of temic telefunken microelectronic gmbh to 1. meet all present and future national and international statutory requirements. 2. regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. it is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( odss). the montreal protocol ( 1987) and its london amendments ( 1990) intend to severely restrict the use of odss and forbid their use within the next ten years. various national and international initiatives are pressing for an earlier ban on these substances. temic telefunken microelectronic gmbh semiconductor division has been able to use its policy of continuous improvements to eliminate the use of odss listed in the following documents. 1. annex a, b and list of transitional substances of the montreal protocol and the london amendments respectively 2 . class i and ii ozone depleting substances in the clean air act amendments of 1990 by the environmental protection agency ( epa ) in the usa 3. council decision 88/540/eec and 91/690/eec annex a, b and c ( transitional substances ) respectively. temic can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. we reserve the right to make changes to improve technical design and may do so without further notice . parameters can vary in different applications. all operating parameters must be validated for each customer application by the customer. should the buyer use temic products for any unintended or unauthorized application, the buyer shall indemnify temic against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. temic telefunken microelectronic gmbh, p.o.b. 3535, d-74025 heilbronn, germany telephone: 49 ( 0 ) 7131 67 2831, fax number: 49 ( 0 ) 7131 67 2423
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