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AD807 Datasheet(PDF) 11 Page - Analog Devices |
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AD807 Datasheet(HTML) 11 Page - Analog Devices |
11 / 12 page REV. B AD807 –11– AD807 DATAOUTN DATAOUTP VCC2 CLKOUTN CF1 CF2 VEE SDOUT PIN NIN AVCC1 THRADJ AVEE SDOUT VCC1 CLKOUTP AVCC2 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 CD R5 100 R6 100 R10 154 R9 154 C7 0.1 F R7 100 R8 100 C8 0.1 F R12 150 R11 150 R2 100 R1 100 C2 0.1 F C3 0.1 F C4 0.1 F C5 0.1 F R4 100 R3 100 C6 0.1 F C1 0.1 F J1 J2 J3 J4 R13 THRADJ C11 0.1 F C10 0.1 F R14 47 R15 47 R16 330 C9 10 F 5V C13 0.1 F C14 0.1 F 30pF 30pF NOISE FILTER 120nH R17 3.9k C12 0.1 F EPITAXX ERM504 1 2 PIN TIA 1 F NOTE: PIN TIA PIN 4 (CASE) IS CONNECTED TO GROUND Figure 17. AD807 Application with Epitaxx PIN—Transimpedance Amplifier Module The entire circuit was enclosed in a shielded box. Table I sum- marizes results of tests performed using a 2 23-1 PRN Sequence, and varying the average power at the PIN diode. The circuit acquires and maintains lock with an average input power as low as –39.25 dBm. Table II. AD807—Epitaxx ERM504 PIN TIA 155 Mbps Fiber Optic Receiver Circuit: Output Bit Error Rate and Output Jitter vs. Average Input Power Average Optical Input Power Output Bit Output Jitter (dBm) Error Rate (ps rms) 0 0.0 × 10–10 29 –3 0.0 × 10–10 35 –10 0.0 × 10–10 40 –20 0.0 × 10–10 37 –30 0.0 × 10–10 33 –32 0.0 × 10–10 35 –34 0.0 × 10–10 36 –35 0.0 × 10–10 39 –35.5 0.0 × 10–10 40 –36 0.0 × 10–10 41 –37.0 0.0 × 10–10 42 –37.6 0.5 × 10–10 43 –38.0 4 × 10–6 50 SONET (OC-3)/SDH (STM-1) Fiber Optic Receiver Circuit A light wave receiver circuit for SONET/SDH application at 155 Mbps is shown in Figure 17, with test results given in Table II. The circuit operates from a single 5 V supply, and uses two major components: an Epitaxx ERM504 PIN-TIA module with AGC, and the AD807 IC. A 120 MHz, third order, low-pass Butterworth filter at the output of the PIN-TIA module provides adequate bandwidth (70% of the bit rate), and attenuates high frequency (out of band) noise. 250mV 50mV/ DIV –250mV 38.12ns 1ns/DIV 48.12ns Figure 18. Receiver Output (Data) Eye Diagram, 0 dBm Optical Input 250mV 50mV/ DIV –250mV 38.12ns 1ns/DIV 48.12ns Figure 19. Receiver Output (Data) Eye Diagram, –38 dBm Optical Input |
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Similar Description - AD807_00 |
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