AD8325ARUZ Analog Devices Inc, AD8325ARUZ Datasheet
AD8325ARUZ
Specifications of AD8325ARUZ
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AD8325ARUZ Summary of contents
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FEATURES Supports DOCSIS Standard for Reverse Path Transmission Gain Programmable in 0.75 dB Steps Over a 59.45 dB Range Low Distortion at 61 dBmV Output –57 dBc SFDR at 21 MHz –55 dBc SFDR at 42 MHz Output Noise ...
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AD8325–SPECIFICATIONS 1 a 1:1 transformer with an insertion loss of 0 MHz unless otherwise noted.) Parameter INPUT CHARACTERISTICS Specified AC Voltage Noise Figure Input Resistance Input Capacitance GAIN CONTROL INTERFACE Gain Range Maximum Gain Minimum Gain Gain ...
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LOGIC INPUTS (TTL/CMOS-Compatible Logic) Parameter Logic “1” Voltage Logic “0” Voltage = 5 V) CLK, SDATA, DATEN Logic “1” Current (V INH = 0 V) CLK, SDATA, DATEN Logic “0” Current (V INL Logic “1” Current ( ...
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... AD8325ARU –40∞C to +85∞C AD8325ARU-REEL –40∞C to +85∞C 2 AD8325ARUZ –40∞C to +85∞C 2 AD8325ARUZ-REEL –40∞C to +85∞C AD8325-EVAL 1 Thermal Resistance measured on SEMI standard 4-layer board Pb-free part. CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection ...
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V TOKO 617DB–A0070 CC 0.1�F V IN– OUT– V AD8325 165� IN OUT+ V IN+ GND 0.1�F TPC 1. Basic Test Circuit 0 10MHz 5MHz –0 42MHz –1.0 –1 65MHz –2.0 ...
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AD8325 – 62d BmV @ MAX GAIN –60 OUT V = 61dBmV @ MAX GAIN OUT – 60dBmV @ MAX GAIN OUT – 59dBmV @ MAX GAIN OUT – FUNDAMENTAL ...
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APPLICATIONS General Application The AD8325 is primarily intended for use as the upstream power amplifier (PA) in DOCSIS (Data Over Cable Service Interface Specifications) certified cable modems and CATV set-top boxes. Upstream data is modulated in QPSK or QAM format, ...
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AD8325 Output Bias, Impedance, and Termination The differential output pins V and V OUT+ dc level of approximately V /2. Therefore, the outputs should be CC ac-coupled before being applied to the load. This is accomplished with a 1:1 transformer ...
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... The PULSE diplexer included on the evaluation board provides a high-order low-pass filter function, typically used in the upstream path. The ability of the PULSE diplexer to achieve DOCSIS compliance is neither expressed nor implied is 1.0 nV/÷ Analog Devices Inc. Data on the diplexer can be obtained from PULSE. –9– AD8325 2560 K SYM/SEC – ...
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AD8325 Differential Inputs The AD8325-EVAL evaluation board may be driven with a differential signal in one of two ways. A transformer may be used to convert a single-ended signal to differential differ ential signal source may be used. ...
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EVALUATION BOARD FEATURES AND OPERATION Figure 8. Screen Display of Windows-Based Control Software REV. A –11– AD8325 ...
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AD8325 Figure 9. Evaluation Board—Assembly (Component Side) –12– REV. A ...
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Figure 10. Evaluation Board Layout (Component Side) REV. A –13– AD8325 ...
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AD8325 Figure 11. Evaluation Board—Solder Side –14– REV. A ...
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REV. A Figure 12. Evaluation Board Schematic –15– AD8325 ...
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AD8325 AD8325 Evaluation Board Rev. B, Single-Ended-to-Differential Input – Revised – February 21, 2001 Qty. Description ‘D’ size tantalum chip capacitor 1 1 1,000 1206 ceramic chip capacitor 0 1206 ...