sp8126b Exar Corporation, sp8126b Datasheet
sp8126b
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sp8126b Summary of contents
Page 1
... Low Offset Drift: < 20µV/°C 12dB External Gain Adjust Range The SP8126B is a high-speed, differential output APC amplifier that integrates the photodiode and adjustable gain block on one chip. Independent gain control allows individual adjustment for 780mn and 650nm wavelength operation, as found in CD/DVD optical storage drives. This allows the user to control the laser power of the system in high-speed DVDRW, DVDRAM and CDRW systems ...
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... GAIN = 1230 (High Gain) GAIN = 1230 (High Gain) GAIN = 1230 (High Gain) GAIN = 1230 (High Gain) GAIN 2V Step PP Step 1230 (High Gain) GAIN SP8126B High Speed Differential APC Amplifier 2 = 1k to GND 510 GAIN MIN TYP MAX UNITS 4.5 5 5.5 V 2400 3000 3600 V/W 0 ...
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... V + OUT Internal Operation The SP8126B APC circuit has an integrated photo detector and is designed with nominal sensitivities of 3mV/µW for both 650nm and 780nm wavelength laser light. The part's sensi- tivity can also be adjusted continuously and independently for two different gain modes via two external resistors over a range of ± ...
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... Figure 3. Bandwidth versus GAIN ( ) (nS) 1230 12 510 7 225 5.5 SP8126B High Speed Differential APC Amplifier 4 500 750 1.0k 1.25K 1.5k R GAIN GAIN 0.0dB 6 .0dB 500 750 1.0k 1.25K 1. GAIN GAIN BW Pin µ (MHz) ( ...
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... FR4 material. In order to minimize coupling capacitance into the gain setting resistor nodes also critical that V + and V OUT traces associated with the gain-setting resistors. SP8126B High Speed Differential APC Amplifier 5 and GAIN1 are subminiature potentiom- - are routed away from the OUT Bottom © ...
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... Figure 5. Test and Evaluation Schematic Rev:A Date: 3/18/ OUT OUT- 7 SP8126B R 10 GAIN2 6 R GAIN1 510 R G2 510 SP8126B High Speed Differential APC Amplifier 6 V OUT+ + RL1 CL1 50pF 1k + CL2 RL2 50pF 1k V OUT- © Copyright 2004 Sipex Corporation ...
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... TOP VIEW E B SIDE VIEW DETECTOR SIZE 0.35mm Detector Area Rev:B Date: 3/18/ 0.600 PIN SIDE VIEW DIMENSIONS 0.70mm SP8126B High Speed Differential APC Amplifier BOTTOM VIEW mm 8–PIN Min/Max COB A 0.90/1.10 B 0.127/0.33 b 0.30/0.50 C 0.50 nom D 2.90/3.10 E 3.00/3.20 e ...
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... Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Rev:A Date: 3/18/04 ORDERING INFORMATION Temperature Range SP8126B High Speed Differential APC Amplifier 8 Package Type © Copyright 2004 Sipex Corporation ...