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Active Splitter for CATV Set-Top Boxes PRELIMINARY DATA SHEET - Rev 1.0

28 Pin QFN

FEATURES

  • Single Input, Triple Output Design - Three Video Tuner Outputs
  • 5 dB Typical Noise Figure at 5 dB Gain
  • Wide Dynamic Range AGC Control, Independent for each Tuner Path
  • High Linearity, Low Distortion
  • Single +5 V Supply
  • Balanced 75 Ohm Inputs/Outputs

APPLICATIONS

  • CATV Set-Top Boxes with Multiple Tuners PRODUCT DESCRIPTION This active splitter from ANADIGICS accepts a balanced RF input in the 50 to 860 MHz frequency range and provides three balanced RF outputs with minimal degradation in signal quality. The single- package surface mount device amplifies the input signals using highly linear, low noise amplification stages, and couples the amplified signal to three separate output paths to drive video tuner inputs. Each of the output paths includes independent Automatic Gain Control (AGC). The overall linearity Figure 1: Functional Block Diagram of each tuner path is maintained across a wide AGC 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 surface mount packaging makes the device ideal for use in today’s multiple-tuner set-top boxes for Cable TV. VID1OUT- VID1OUT+ VID2OUT- VID2OUT+ VID3OUT- VID3OUT+ RFIN- RFIN+ AGC VID1 AGCVID2 AGCVID3

2 PRELIMINARY DATA SHEET - Rev 1.0 APS3602 VCC AGCVID1 RFIN+ VID2OUT- GND 28 222324252627 8 14131211109 RFIN- GND GND VID2OUT+ GND GND GND VID1 OUT- VID1OUT+ GND GND GND AGCVID2 AGC VID OUT+ OUT- GND GND GND GND GND GND GND VID3 VID3 NIP EMAN NOITPIRCSED NIP EMAN NOITPIRCSED 1V CC egatloVylppuS8 2D NGd nuorG 2D NGd nuorG7 2D NGd nuorG 3F R +NI )+(tupnIFR6 2D NGd nuorG 4D NGd nuorG5 2D NGd nuorG 5F R -NI )-(tupnIFR4 2D NGd nuorG 6D NGd nuorG3 2D NGd nuorG 7C GA 1DIV tupnIlortnoCCGA1oediV2 2D NGd nuorG 8C GA 2DIV tupnIlortnoCCGA2oediV1 21 DIV +TUO )+(tuptuO1oediV 9C GA 3DIV tupnIlortnoCCGA3oediV0 2D NGd nuorG 01D NGd nuorG9 11 DIV -TUO )-(tuptuO1oediV

113 DIV +TUO )+(tuptuOhtaPataD8 1D NGd nuorG

21D NGd nuorG7 12 DIV +TUO )+(tuptuO2oediV

313 DIV -TUO )-(tuptuOhtaPataD6 1D NGd nuorG

41D NGd nuorG5 12 DIV -TUO )-(tuptuO2oediV Table 1: Pin Description Figure 2: Pinout (X-ray Top View)

PRELIMINARY DATA SHEET - Rev 1.0 APS3602

ELECTRICAL CHARACTERISTICS

Table 2: Absolute Minimum and Maximum Ratings Stresses in excess of the absolute ratings may cause permanent damage. Functional operation is not implied under these conditions. Exposure to absolute ratings for extended periods of time may adversely affect reliability. Table 3: Operating Ranges The device may be operated safely over these conditions; however, parametric performance is guaranteed only over the conditions defined in the electrical specifications. RETEMARAP NIM XAM TINU STNEMMOC V(egatloVylppuS CC )0 8 +V V(egatloVtupnICGA CGA )0 5 +V P(rewoPtupnIFR NI )- 5 2+V mBd5 7otnilaitnereffid Ω RETEMARAP NIM PYT XAM TINU STNEMMOC ycneuqerFgnitarepO0 5- 0 68 zHM V(egatloVylppuS CC )- 5 +- V V(egatloVtupnICGA CGA )3 .0+- 0 .3+V V 3+taniag.xam P(rewoPtupnIFR NI )5 1--5 1+V mBd5 7otnilaitnereffid Ω T(erutarepmeTesaC C)0 2--5 8+C °

4 PRELIMINARY DATA SHEET - Rev 1.0 APS3602 Table 4: DC Electrical Specifications (TC = +25 °C, VCC = +5 V, 75 ΩΩΩΩΩ system) Notes: (1) 132 channels, +6 dBmV flat output, up to +15 dBmV flat input RETEMARAP NIM PYT XAM TINU STNEMMOC noitpmusnoCtnerruC- 5 71- A m ylppusV5+morf tnerruCegakaeLtupnICGA- 0 5- µA tupniCGAhcae Table 5: Video Tuner Path AC Electrical Specifications (TC = +25 °C, VCC = +5 V, 75 ΩΩΩΩΩ system) RETEMARAP NIM PYT XAM TINU STNEMMOC CGAmumixaMtaniaG5 .45 - B d CGAmuminiMtaniaG- 1 2--B d erugiFesioN- 8 .46 B dn iagmumixamta BTC )1( -0 7-6 6-c Bd OSC )1( -0 7-6 6-c Bd DOMX )1( -7 6-- c Bd ynAdnatuptuOneewteBnoitalosI troPtuptuOrehtO -0 3- B d tuptuOdnatupnIneewteBnoitalosI -0 3- B d ssoLnruteRtupnI- 8 -- B d5 7 Ω tupnilaitnereffid ecnadepmItuptuO -5 7- Ω laitnereffid

6 PRELIMINARY DATA SHEET - Rev 1.0 APS3602 Figure 7: CSO vs. Input Power (T = +25 °C, V = +5 V, P = +6 dBmV, 132 channel flat input) A CC OUT -90 -85 -80 -75 -70 -65 -60 -55 -50 -45 5 1 01 52 02 5 Input Power (dBmV) CSO (dBc)

77 MHz

445 MHz

865 MHz

Figure 10: Gain vs. AGC Voltage (T = +25 °C, V = +5 V)AC C -25 -20 -15 -10 0 0.5 1 1.5 2 2.5 3 AGC Voltage (V) Gain (dB) Figure 9: Output Port-to-Port Isolation vs. Frequency (T = +25 °C, V = +5 V, P = +6 dBmV)A CC OUT -90 -80 -70 -60 -50 -40 -30 -20 0 500 1000 1500 2000 2500 3000 Frequency (MHz) Isolation (dB) Vagc = +3 V Vagc = 0 V Figure 8: CTB vs. Input Power (T = +25 °C, V = +5 V, P = +6 dBmVA CC OUT , 132 channel flat input) -90 -85 -80 -75 -70 -65 -60 -55 -50 -45 5 1 01 52 02 5 Input Power (dBmV) CTB (dBc)

PRELIMINARY DATA SHEET - Rev 1.0 APS3602

APPLICATION INFORMATION

V CC AGC VID1 GNDRF IN- GNDRF IN+ GND GND AGCVID2 VID1 OUT+ (75 Ohms) AGC VID1 RF Input +5 V 0.01uF AGCVID3 28 27 GND GND GND VID1 OUT- VID2 OUT- VID2 OUT+ GND GND GND VID3OUT+ OUT- 0.01uF AGCAGC VID2 /c87 270nH /c87 270nH /c87 270nH /c87 270nH /c87 270nH /c87 270nH GND GND GND 0.01uF 0.01uF 0.01uF 0.01uF 330pF 330pF Video 2 Ouput(75 Ohms) 330pF 330pF (75 Ohms) 330pF 330pF Video 1 Ouput(75 Ohms) +5 V +5 V +5 V 0.01uF 0.01uF 0.01uF GND GND GND VID3 VID3 Video 3 Ouput see note Figure 11: Application Circuit NOTE: Optional resistor across input pins may be used to tune input return loss.

8 PRELIMINARY DATA SHEET - Rev 1.0 APS3602 PACKAGE OUTLINE Figure 12: S29 Package Outline - 28 Pin 5mm x 5mm x 1mm QFN

PRELIMINARY DATA SHEET - Rev 1.0 APS3602 NOTES

10 PRELIMINARY DATA SHEET - Rev 1.0 APS3602 NOTES

PRELIMINARY DATA SHEET - Rev 1.0 APS3602 NOTES

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. IMPORTANT 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 specifications contained in Advanced Product Information sheets and Preliminary Data Sheets are subject to change prior to a product’s 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. PRELIMINARY DATA SHEET - Rev 1.0 APS3602

ORDERING INFORMATION

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