ad8320arpz-reel Analog Devices, Inc., ad8320arpz-reel Datasheet
ad8320arpz-reel
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ad8320arpz-reel Summary of contents
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... ATTENUATOR CORE BUF. DATA LATCH POWER- DOWN/ SWITCH INTER. DATA SHIFT REGISTER SDATA P = 18dBm 12dBm 8dBm 4dBm O 10 FREQUENCY – MHz = World Wide Web Site: http://www.analog.com © Analog Devices, Inc., 1998 PWR AMP VOUT REVERSE AMP PD 100 ...
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AD8320–SPECIFICATIONS Parameter INPUT CHARACTERISTICS Full-Scale Input Voltage Input Resistance Input Capacitance GAIN CONTROL INTERFACE Gain Range Full Scale (Max) Gain Gain Offset (Min) Gain Gain Scaling Factor OUTPUT CHARACTERISTICS Bandwidth (–3 dB) Bandwidth Roll-Off Bandwidth Peaking Output Offset Voltage Output ...
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LOGIC INPUTS (TTL/CMOS 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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AD8320 ABSOLUTE MAXIMUM RATINGS* Supply Voltage +V S Pins 17 –0 +13 V Input Voltages ...
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V = 12V 10MHz 0 + +85 C 0.1 0.2 0.3 256 0 64 128 192 GAIN CONTROL – Decimal Figure 4. Gain Error vs. ...
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AD8320 12V 65MHz 18dBm 42MHz 18dBm 42MHz 12dBm 65MHz 12dBm O 90 ...
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F = 42MHz 5V 12dBm 65MHz V = 12V 42MHz P = 18dBm V = 12V 18dBm O 55 ...
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AD8320 100mV V = 12V CC MAX GAIN p OUT 75nsec Figure 31. Power-Up/Power-Down Glitch 2.50V V = 12V 40MHz MAX GAIN V OUT 20nsec ...
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OPERATIONAL DESCRIPTION The AD8320 is a digitally controlled variable gain power ampli- fier that is optimized for driving 75 cable. A multifunctional bipolar device on single silicon, it incorporates all the analog features necessary to accommodate reverse path (upstream) high ...
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AD8320 SDATA CLK DATEN PD ANALOG OUTPUT SIGNAL AMPLITUDE (p-p) The power amplifier has two basic modes of operation; forward or power-up mode and reverse or power-down mode. In the power-up mode (PD = 1), the power amplifier stage is ...
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Basic Connection Figure 45 shows the basic schematic for operating the AD8320. Because the amplifier operates from a single supply, the input signal must be ac-coupled using a 0.1 F capacitor. The input pin has a bias level of about ...
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AD8320 supply voltage of at least + required. To achieve a signal level of +12 dBm (about 3.1 V p-p) into mini- mum supply level required. However, for ...
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VIN 11dBmV 5V PD VDD CLR REFIN AD7801 LDAC AGND DGND D0–D7 8 D0–D7 74HCT164* CLK DATA CLK ENABLE PD Enhanced Dynamic Range Application The AD8320 can be combined with the AD603 to give addi- tional dynamic range ...
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AD8320 Varying Gain by Varying Load Impedance As already mentioned, the AD8320 has a dynamic output im- pedance The specified gain range assumes that the output is terminated with a 75 load impedance. Varying the load impedance ...
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The control software requires Windows 3.1 or later to operate. To install the software, insert the disk labeled “Disk # 1 of 2” in the PC and run the file called SETUP.EXE. Additional installa- tion instructions will be given on-screen. ...
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AD8320 Figure 53. Evaluation Board Layout (Component Side) –16– REV. 0 ...
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PIN CENTRONICS Figure 55. Interconnection Between AD8320EB and PC Printer Port REV. 0 Figure 54. Evaluation Board Layout (Solder Side SIGNAL D-SUB-25 DATEN DATA 5 CLK 6 DGND EVALUATION BOARD –17– ...
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AD8320 Figure 56. Screen Display of Windows-Based Control Software –18– REV. 0 ...
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Thermally Enhanced Power Small Outline Package 0.2992 (7.60) 0.2914 (7.40) 0.0118 (0.30) 0.0040 (0.10) STANDOFF REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). (RP-20) 0.5118 (13.00) 0.4961 (12.60 0.1890 (4.80) 0.4193 (10.65) HEAT SINK 0.1791 ...
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