10/2009 APS3606 active splitter for analog/digital catv set-top boxes adv anced product informa tion - r ev 0.4 s29 package 28 pin qfn 5 mm x 5 mm x 1 mm fea tures ? single input, triple output design ? high linearity, low distortion outputs support video tuner applications ? wideband operation: to above 1 ghz ? 4.5 db typical noise figure at 3.5 db gain ? extended dynamic range gain control, independent for each rf path ? single +5 v supply ? balanced 75 ohm inputs/outputs ? rohs compliant/lead free applica tions ? catv set-top boxes with multiple tuners, and analog or analog/digital input signals. product description this active splitter from anadigics accepts a balanced rf input in the 50 mhz to 1.1 ghz frequency range and provides three balanced rf outputs with minimal degradation in signal quality. the single- package surface mount device amplifes the input signals using highly linear, low noise amplifcation stages, and couples the amplifed signal to three separate output paths that can drive video tuner inputs. each of the rf paths includes independent gain control. the overall linearity of each path is maintained figure 1: functional block diagram across a wide gain range, ensuring low distortion effects on each output signal. requiring only a single +5 volt supply, the active splitter design is implemented using the anadigics gaas mesfet process. the rohs-compliant surface mount packaging makes the device ideal for use in todays multiple-tuner set-top boxes for cable tv. rf1 out- rf1 out+ rf in- rf in+ agc1 agc2 agc3 rf2 out- rf2 out+ rf3 out- rf3 out+ APS3606
2 advanced product information - rev 0.4 10/2009 APS3606 t able 1: pin description figure 2: pinout (x-ray t op v iew) v cc a gc2 n/c 1 bias2 rf in+ 5 4 3 2 7 28 22 23 24 25 26 27 8 14 13 12 11 10 21 16 17 18 19 20 15 n/c agc1 rf in- rf2 out+ n/c n/c n/c rf2 out- bias2b bias3b n/c rf3 out- agc3 bias3a bias1b n/c rf1 out- n/c rf1 out+ n/c bias1a rf3 o u + n/c gnd (exposed heat slug) pin name description pin name description 1 supply voltage 28 bias1a rf1 bias 2 rf in+ rf input (+) 27 n/c no connection 3 n/c no connection 26 rf1 out+ rf1 output (+) 4 rf in- rf input (-) 25 n/c no connection 5 n/c no connection 24 rf1 out- rf1 output (-) agc1 rf1 gain control input 23 n/c no connection 7 agc2 rf2 gain control input 22 bias1b rf1 bias 8 agc3 rf3 gain control input 21 bias2b rf2 bias bias3a rf3 bias 20 n/c no connection 10 n/c no connection 19 rf2 out- rf2 output (-) 11 rf3 out+ rf3 output (+) 18 n/c no connection 12 rf3 out- rf3 output (-) 17 rf2 out+ rf2 output (+) 13 n/c no connection 16 n/c no connection 14 bias3b rf3 bias 15 bias2a rf2 bias
advanced product information - rev 0.4 10/2009 APS3606 3 electric al characteristics t able 2: absolute minimum and maximum ratings stresses in excess of the absolute ratings may cause permanent damage. f unctional operation is not implied under these conditions. e xposure to absolute ratings for extended periods of time may adversely affect reliability. t able 3: operating ranges t he device may be operated safely over these conditions; however, parametric performance is guaranteed only over the conditions defned in the electrical specifcations. parameter min max unit comments supply voltage (v ) 0 +8 agc input voltage (v agc ) 0 +5 rf input power (p in ) +25 dbmv differential into 75 ? parameter min typ max unit comments operating frequency (f) 50 1100 mhz supply voltage (v ) +5 agc input voltage (v agc ) +0.3 +3.0 max. gain at +3 v rf input power (p in ) -15 +15 dbmv differential into 75 ? case temperature (t ) -20 +85
4 advanced product information - rev 0.4 10/2009 APS3606 table 4: dc electrical specifcations (t c = +25 c, v cc = +5 v , 75 ? system) notes: (1) 132 channels, +6 dbmv fat output, up to +15 dbmv fat input table 5: video tuner path ac electrical specifcations (t c = +25 c, v cc = +5 v , 75 ? system) parameter min typ max unit comments current consumption 175 ma from +5 v supply acg input leakage current 50 b each agc input parameter min typ max unit comments gain at maximum agc 3 3.5 at 1 ghz gain at minimum agc -28 at 1 ghz agc range 33 at 1 ghz noise figure 4.3 at maximum gain -70 see note 1 cso - channel 1 -63 see note 1 cso - channel 2 & 3 -70 see note 1 xmod -67 see note 1 isolation between output and any other output port 35 isolation between input and output 35 input return loss -12 75 n differential input output impedance 75 n
advanced product information - rev 0.4 10/2009 APS3606 5 applica tion informa tion f igure 3: application circuit 2 16 15 1 2 1 20 19 18 17 7 5 4 3 agc2 agc1 rf in rf in + n/ n/ agc3 bias2 (75 oh ms ) agc1 rf input 0.01uf bias3 8 10 14 13 12 11 26 22 23 24 25 28 27 bias1b n/ n/ rf 2 out- bias2 rf 2 out+ n/ bias3 n/ rf 3 out+ rf 3 out- 0.01uf agc3 agc2 470n h n/ n/ n/ 0.01uf 0.01uf 0.01uf 0.01uf 0.01uf rf2 ouput (75 oh ms ) 0.01uf 0.01uf rf3 outp u (75 oh ms ) 0.01uf 0.01uf rf1 ouput (75 oh ms ) 0.01u f bias1a rf 1 out+ rf 1 out- n/ 470n h 0.01uf 470nh 0.01uf 470n h 0.01uf 470nh 0.01uf 470n h 0.01uf
6 advanced product information - rev 0.4 10/2009 0 n e : 29 e te 2 1 n
advanced product information - rev 0.4 10/2009 APS3606 7 notes
w arning anadigics products are not intended for use in life support appliances, devices or systems. use of an anadigics product in any such application without written consent is prohibited. import ant notice anadigics, inc. 141 mount bethel road warren, new jersey 07059, u.s.a. tel: +1 (908) 668-5000 fax: +1 (908) 668-5132 url: http://www.anadigics.com e-mail: mktg@anadigics.com anadigics, inc. reserves the right to make changes to its products or to discontinue any product at any time without notice. the product specifcations contained in advanced product information sheets and preliminary data sheets are subject to change prior to a products formal introduction. information in data sheets have been carefully checked and are assumed to be reliable; however, anadigics assumes no responsibilities for inaccuracies. anadigics strongly urges customers to verify that the information they are using is current before placing orders. advanced product information - rev 0.4 10/2009 8 APS3606 ordering informa tion order number temperature range package description component packaging APS3606rs29p8 -20 c to +85 rohs compliant 28 pin 5 mm x 5 mm x 1 mm qfn package tape and reel, 2500 pieces per reel
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