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MC7882 Dataheets PDF



Part Number MC7882
Manufacturers NEC
Logo NEC
Description NECs 870 MHz GaAs CATV POWER DOUBLER AMPLIFIER
Datasheet MC7882 DatasheetMC7882 Datasheet (PDF)

MC-7881 NEC's 870 MHz GaAs CATV MC-7882 POWER DOUBLER AMPLIFIER MC-7883 MC-7884 FEATURES • GaAs ACTIVE DEVICES • LOW DISTORTION • HIGH LINEAR GAIN: MC-7881 - GL = 18 dB MIN at f = 870 MHz MC-7882 - GL = 20 dB MIN at f = 870 MHz MC-7883 - GL = 22 dB MIN at f = 870 MHz MC-7884 - GL = 25 dB MIN at f = 870 MHz • LOW RETURN LOSS • LOW GAIN CHANGE OVER TEMPERA TURE • SPECIFIED FOR 79, 110, and 132 CHANNELS PERFORMANCE • HIGH RELIABILITY AND RUGGEDNESS: Withstands environmental extremes as well as Sili.

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MC-7881 NEC's 870 MHz GaAs CATV MC-7882 POWER DOUBLER AMPLIFIER MC-7883 MC-7884 FEATURES • GaAs ACTIVE DEVICES • LOW DISTORTION • HIGH LINEAR GAIN: MC-7881 - GL = 18 dB MIN at f = 870 MHz MC-7882 - GL = 20 dB MIN at f = 870 MHz MC-7883 - GL = 22 dB MIN at f = 870 MHz MC-7884 - GL = 25 dB MIN at f = 870 MHz • LOW RETURN LOSS • LOW GAIN CHANGE OVER TEMPERA TURE • SPECIFIED FOR 79, 110, and 132 CHANNELS PERFORMANCE • HIGH RELIABILITY AND RUGGEDNESS: Withstands environmental extremes as well as Silicon devices (Surge, ESD, Etc.) OUTLINE DIMENSIONS (Units in mm) PACKAGE OUTLINE H02 45.08 MAX 38.1±0.25 3.2 MAX 27.5 MAX 4.25 + 0.25 - 0.35 14.85 MAX 4.0±0.25 8.1 MAX 19.05±0.38 1 In 6-32 unc 2B VDD 5 9 Out 25.4±0.25 2.54±0.25 2 3 7 8 0.51±0.05 21.5 MAX Gnd 12.9 MAX 1 2 3 5 7 8 9 2.62±0.35 10.75 ±0.25 DESCRIPTION NEC's MC-7881, MC-7882, MC-7883, and MC-7884 are GaAs Multi-Chip Modules designed for use as output stages in CA TV applications up to 870 MHz. The only difference between these devices is gain, which is 18 dB, 20 dB, 22 dB, and 25 dB respectively. Because these units are GaAs devices they have low distortion, low noise figure, and low return loss across the entire frequency band. Like the previous generation of products, these devices survive such hazards as surge and ESD as well as their silicon competitors, but deliver superior performance with low DC current required. All devices are assembled and tested using fully automated equipment to maximize consistency in part to part performance, and reliability is assured by NEC's stringent quality and process control procedures.These parts come in industry compatible hybrid packages. 4.19±0.13 A 6.3 0.38.. A 0.51±0.05 2.5 2.54 ±0.38 ±0.05 APPLICATIONS • CATV HEADEND SYSTEMS • CATV OPTICAL NODES • CATV DISTRIBUTION AMPS ELECTRICAL CHARACTERISTICS (TA = 30±5 °C, VDD = 24 V, Z S = ZL = 75 Ω) PART NUMBER SYMBOLS CHARACTERISTICS BW Frequency Range GL Linear Gain S Gain Slope Gf Gain Flatness NF RLi Noise Figure 1 Noise Figure 2 Input Return Loss MC-7881 MC-7882 MC-7883 MC-7884 UNITS MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX MHz 50 – 870 50 – 870 50 – 870 50 – 870 dB 18.0 – 19.0 20.0 – 21.0 22.0 – 23.0 25.0 – 26.0 dB 0.2 0.6 1.0 0.4 0.8 1.2 0.6 1.0 1.4 0.6 1.0 1.4 dB – – 0.6 – – 0.6 – – 0.6 – – 0.6 dB dB – – 20.0 19.0 17.5 16.0 20.0 19.0 17.5 16.0 – – – – – – – – – – 6.5 7.0 – – – – – – – – – – 20.0 19.0 17.5 16.0 20.0 20.0 19.0 18.0 – – – – – – – – – – 6.0 6.5 – – – – – – – – – – 20.0 20.0 19.0 17.0 20.0 20.0 19.0 18.0 – – – – – – – – – – 5.5 6.0 – – – – – – – – – – 20.0 20.0 19.0 17.0 20.0 20.0 19.0 18.0 – – – – – – – – – – 5.0 5.5 – – – – – – – – TEST CONDITIONS f = 870 MHz f = 40 to 870 MHz 40 to 870 MHz; Peak to Valley f = 50 MHz f = 870 MHz 40 to 160MHz 160 to 320 MHz 320 to 640 MHz 640 to 870 MHz 40 to 160MHz 160 to 320 MHz 320 to 640 MHz 640 to 870 MHz continued on next page RLo Output Return Loss dB MC 7881, 7882, 7883, 7884 ELECTRICAL CHARACTERISTICS, cont. (TA = 30±5 °C, V DD = 24 V, ZS = ZL = 75 Ω) SYMBOLS IDD CTB XMod CSO PART NUMBER CHARACTERISTICS UNITS Operating Current mA Composite Triple Beat dBc Cross Modulation 1 dBc Composite Second Order dBc MC-7881 MC-7882 MC-7883 MC-7884 MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX 310 – 360 310 – 360 310 – 360 310 – 360 – – -60 – – -60 – – -60 – – -60 – – -55 – – -55 – – -55 – – -55 – – -63 – – -63 – – -63 – – -63 TEST CONDITIONS RF OFF 110 Channels, VOUT = 52 dBmV at 745.25 MHz, 10 dB tilted across the band Note: 1. Measured per US standard methods and procedures (using selective level meter). ABSOLUTE MAXIMUM RATINGS1 (TCASE= 25 °C) SYMBOLS VDD VI TC TSTG PARAMETERS Supply Voltage Input Voltage (Single Tone) 2 Operating Case Temperature Storage Temperature UNITS V dBmV °C °C RATINGS 30 65 -30 to +100 -40 to +100 RECOMMENDED OPERATING CONDITIONS (Zs = ZL = 75Ω) SYMBOLS VDD Vi PARAMETERS Supply Voltage Input Voltage 1, MC-7881 MC-7882 MC-7883 MC-7884 Operating Case Temperature UNITS V dBmV MIN 23.5 – – – – -30 TYP MAX 24.0 36.0 34.0 32.0 29.0 +25 24.5 39.0 37.0 35.0 32.0 +85 Note: 1. Operation in excess of any one of these parameters may result in permanent damage. 2. Maximum single channel power applied to the input for 1 minute with no measurable degradation in performance. TC °C Note: 1. Test Conditions: 110 Channels, 10 dB tilted across the band. ORDERING INFORMATION PART NUMBER MC-7881 MC-7882 MC-7883 MC-7884 PACKAGE 7-pin special with heatsink 7-pin special with heatsink 7-pin special with heatsink 7-pin special with heatsink QUANTITY 50pcs max/ Tray 50pcs max/ Tray 50pcs max/ Tray 50pcs max/ Tray NOTES ON CORRECT USE 1. The space between PC board and root of the lead should be kept more than 1 mm to prevent undesired stress on the lead and also should be kept less than 4 mm to prevent undesired parasitic inductance. Recommended space is 2.0 to 3.0 mm typical. 2. Recommended torque strength of the screw is 59 to 78 Ncm. 3. Form the ground pattern as wide as possib.


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