Freescale Semiconductor, Inc. Technical Data MC44BC380/D Rev. 1.3 09/2002 MC44BC380 Freescale Semiconductor, Inc... MC44BC380 VHF/ UHF ANTENNA BOOSTER/SPLITTER IC SO8 Package Ordering Information Device Temp. Range Package MC44BC380D, R2 -20°C to +85°C SO8NB NOTE: For tape and reel, add R@ suffix. 1 Features . . . . . . . . . . . . . 2 2 Functional Description 3 3 Maximum Ratings . . . . . 3 4 Antenna/Booster Splitter Electrical Characteristics 4 5 IC Block Diagram . . . . . 6 6 Diagrams . . . . . . . . . . . . 7 This modulator circuit is for use in VCRs, set top boxes, and similar devices. Figure 1 shows the pin connections. GND 1 8 VCRTU ANT1 2 7 VCRVcc ANT2 3 6 TVOVcc GND 4 5 TVOUT Figure 1. Pin Connections This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. © Motorola, Inc., 2002. All rights reserved. For More Information On This Product, Go to: www.freescale.com Features Freescale Semiconductor, Inc. 1 Features This circuit is developed using Motorola RF BiCMOS technology. With a transmit frequency of 18GHz, the Antenna Booster/Splitter allows high RF performance at low cost. The Antenna Booster/Splitter function boosts the antenna signal, then splits it into two (2) 75 Ohm outputs for the TV and auxiliary outputs. Main applications are for: • Set-Top Box (STB) • VCR tuner • PIP TV • Video games RF output of the STB or VCR is added to the boosted received antenna signal. Freescale Semiconductor, Inc... The MC44BC380 has the following features: 2 • Frequency operation range (40MHz to 880MHz) • Extremely low external component count • Low power consumption (35mA typical) • Balanced inputs for low distortion • Balanced amplifiers for maximum isolation MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Functional Description 2 Functional Description Figure 2 is a simplified block diagram, which shows the basic circuit functionality. The MC44BC380 has separate Vccs and a maximum grounding pattern to ensure high performance in terms of isolation and leakage. The MC44BC380 comes in an SO8 package and has a minimum pin count, which reduces cost and application board space. NOTE: A BALUN is required at the input to achieve the stated performance. Freescale Semiconductor, Inc... GND 1 8 VCRTU 75Ω ANT1 2 7 VCRVcc Vcc 5dB 6 TVOVcc ANT2 3 75Ω 5 TVOUT GND 4 Figure 2. Simplified Block Diagram—MC44BC380 3 Maximum Ratings Sym Parameter Vcc1 Supply voltage Tamin Tamax Value Unit 6 V Minimum operating ambient temperature –10 oC Maximum operating ambient temperature 75 oC Tstgmin Minimum storage temperature –65 oC Tstgmax Maximum storage temperature 150 o C This device contains protection circuitry to guard against damage due to high static voltage or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high impedance circuit. For proper operation, input and output voltages should be constrained to the ranges indicated in the Recommended Operating Conditions. aximum ratings are those values beyond which damage to the device may occur. For functional peration, voltage should be restricted to the Recommended Operating Condition. MOTOROLA MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com 3 Freescale Semiconductor, Inc. Antenna/Booster Splitter Electrical Characteristics 4 Antenna / Booster Splitter Electrical Characteristics 4.1 Parameter Type A: 100% Tested C: Characterized on samples B: 100% Correlation tested D: Design parameter 4.2 Specification Conditions Unless otherwise stated: Vcc = 5.0 V, Ambient Temperature = 25o C, all outputs into 75 Ohm load. All specifications use a BALUN at ANT1, 2 inputs, assuming a 0.8dB MAX loss from 40MHz to 880MHz. Freescale Semiconductor, Inc... Table 1. Specification Conditions Ref Parameter Test Conditional Typ Max Unit Vcc Supply Voltage 4.5 5 5.5 V IccB BST section supply current 28 35 42 mA Frequency range 40 880 MHz GvGt Gain ANT1, 2 to VCRTU ANT1, 2 to TVOUT Gain Flatness 40 to 880MHz Noise figure ANT1, 2 to VCRTU and ANT1, 2 to TVOUT VSWR 1. 4 Min 5 5 dB +1.2 dB 7 9.5 dB All pins, BST bias ON At TVout and VCRTU, BST bias OFF 1.5 2 — At ANTin pins. BST OFF. 2.5 3 — –1.2 Intermodulation (IMD) Input level=90dBuV See IMD Measurement 45 Isolation From TVOUT or VCR to ANT1, 2 TVOUT/VCRTU from 40MHz to 600MHz 1 45 30 Type dBc 50 45 dBc Output-to-Output isolation is dependant on printed circuit board (PCB) layout and Vcc line DC-coupling. See Application records and PCB layout proposal. MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Antenna/Booster Splitter Electrical Characteristics 4.3 Intermodulation ( IMD ) Measurement BALUN F1 TVOUT Pin 5 Pin 8 VCRTU F2 75/50 Spectrum Analyzer 50/75 75/50 MC44BC380 F1 F2 2F2–F1 2F1–F2 F2–F1 Freescale Semiconductor, Inc... F1 F2 F1+F2 IMD (dBc) 90dBuV Intermodulation frequencies are all frequency combinations coming from the two input carriers F1 and F2:F2–F1, 2*F1–F2, 2*F2–F1 and F1+F2, falling into the 40Mhz to 900Mhz range. Intermodulation (IMD) measurement is the difference (in dBc) between F1 or F2 level at the Output (VCRTU or TVOUT) and spurious level, for all the following cases: F1=50Mhz and F2=60Mhz F1=100Mhz and F2=110Mhz F1=200Mhz and F2=210Mhz F1=300Mhz and F2=310Mhz F1=400Mhz and F2=410Mhz F1=500Mhz and F2=510Mhz F1=600Mhz and F2=610Mhz F1=700Mhz and F2=710Mhz F1=800Mhz and F2=810Mhz F1 and F2 input levels are set to 90dBuV. Spurious specification is the worst case IMD measurement. MOTOROLA MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com 5 Freescale Semiconductor, Inc. IC Block Diagram 5 IC Block Diagram 5.1 Proposed Booster / Splitter Schematic This document contains information on a new product under development. Motorola reserves the right to change or discontinue this product without notice. O Vcc R2 L2 BALUN ANTINO C1 1 8 2 7 O TVOUT C4 O Vcc C5 Freescale Semiconductor, Inc... C2 3 6 4 5 C6 C3 C7 C8 O VCRTU L1 R1 O Vcc Figure 3. Proposed Booster/Splitter Schematic 5.1.1 Components • 1nF Capacitors: C1, C2, C3, C4, C5, C6, C8 • 10nF Capacitor: C7 • Application dependant: L1, L2, R1, R2 5.1.2 Recommendations 6 • A BALUN is required for this application • A single-sided PCB has been used to evaluate the device performance. • Decoupling capacitors C5 and C6 decrease coupling between TVOUT and VCRTU through the Vcc line (bonding and PCB coupling) and increase TVOUT to VCRTU isolation (see proposed PCB layout). • Pull-ups to Vcc may be needed on TVOUT and VCRTU pins to improve spurious performance at low Vcc (1uH in series with 75Ω). • Resistive pull-ups can also be used to decrease gain and increase spurious performance. For example, 267Ohms reduces gain by about 1dB and increases IMD value by 2 to 6dB. Trade-off depends on application requirements. MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. Diagrams 6 Diagrams Freescale Semiconductor, Inc... 6.1 Proposed Single-Sided PCB Layout Trace Side Component Side Figure 4. Proposed Single-Sided PCB Layout MOTOROLA MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com 7 Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... Diagrams LD Narrow Body—150 MIL PKG—1.27 Pitch POD Millimeters NOTE: Inches Dim Min Max Min Max A 1.35 1.75 0.053 0.069 A1 0.1 0.25 0.003 0.010 D 4.8 5 0.188 0.197 E 5.8 6.2 0.228 0.244 E1 3.8 4 0.149 0.157 b 0.35 0.49 0.013 0.019 c 0.19 0.25 0.007 0.010 e 1.27 BSC 1. 2. 3. 4. 5. Dimensioning and Tolerancing per ANSI Y14.5M, 1994. Controlling dimension: Millimeters. Dimensions D and E1 do not include mold protrusions. Maximum mold protrusion is 0.15 (0.006) per side. Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall be 0.127 total in excess of b dimension at maximum material condition. 0.050 BSC h 0.25 0.5 0.009 0.020 L 0.4 1.25 0.015 0.049 Q 0o 7o 0o 7o Figure 5. Diagram—SO8 Package 8 MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Diagrams Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. MOTOROLA MC44BC380 Technical Data For More Information On This Product, Go to: www.freescale.com 9 Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. HOW TO REACH US: Information in this document is provided solely to enable system and software implementers to use Motorola products. There are no express or implied copyright licenses granted hereunder to USA/EUROPE/LOCATIONS NOT LISTED: design or fabricate any integrated circuits or integrated circuits based on the information in this Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217 1-303-675-2140 or 1-800-441-2447 document. 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