lt1328 Linear Technology Corporation, lt1328 Datasheet
lt1328
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lt1328 Summary of contents
Page 1
... Internal high- pass filtering attenuates interfering signals such as sunlight, incandescent and fluorescent lamps and is selectable at Pin 7 for low or high data rates. The LT1328’s ease of use and flexibility make it an ideal solution for numerous other photodiode receiver applications. The LT1328 is available in the SO-8 as well as the tiny MSOP for size-critical applications ...
Page 2
... V CC GND MODE Note 1: MS8 package devices are designed for and intended to meet commercial temperature range specifications but are not tested ORDER PART TOP VIEW NUMBER 8 V BIAS LT1328CS8 7 MODE DATA S8 PART MARKING S8 PACKAGE 1328 = 190 unless otherwise specified ...
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... CURRENT (PIN 1328 G05 Peak Interfering Current vs Frequency 1000pF BIAS CURRENT IS SOURCED OUT OF PIN 330pF FILT 10nF FILT AREA OF 1 SIGNAL REJECTION 0.01 0 100 1000 FREQUENCY (kHz) 1328 G07 LT1328 1000 10000 1328 G03 3 ...
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... A 1000pF capacitor from this pin to ground BIAS is required 50k 1.5V PREAMP FILTER DC SERVO + g m 60k – – COMPARATOR + Figure 1. LT1328 Block Diagram V 8 BIAS C6 1000pF BIAS MODE 7 HIGH: SIR LOW: FIR AND 4ppm 4.7 F DATA 5 1328 BD ...
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... U U APPLICATIONS INFORMATION The LT1328 is a low noise, high speed, high gain infrared receiver designed to easily provide IR communications with portable computers, PDAs, desktop computers and periph- erals. The receiver takes the photodiode current from an infrared photodiode (typically Temic BPV22NF) and per- forms a current-to-voltage conversion ...
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... Light levels are 100mW/SR to 500mW/ SR over the 1cm to 1 meter range. A photo of a transmit- ted input and LT1328 output is shown in Figure 3. The LT1328 output pulse width will be less than 800ns wide over all of the above conditions at 1.152Mbps. Pin 7 should be held low for these data rates and above ...
Page 7
... A BER (bit-error rate) transmitter and receiver was used to test the data-link error rates for data rates of 375kbps. Because the NRZ data can have long stretches of continu- ous “1” data, the low frequency corner of the LT1328 photodiode receiver is set to 14Hz to prevent pulse-top distortion. ...
Page 8
... The NRZ data is used to gate a 3MHz square wave before driving the transmitter. The LT1328 in FIR-4ppm mode (bandwidth of 1MHz to 4MHz) will re- ceive the 3MHz signal. Thus, the low frequency response is no longer required and the LT1328 can be configured HSDL 4220 4 ...
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... U TYPICAL APPLICATIONS N LT1328 9 ...
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... LT1328 PACKAGE DESCRIPTION 0.007 (0.18) 0.021 0.004 (0.53 0.01) * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ...
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... Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) 0.228 – 0.244 (5.791 – 6.197) 0.053 – 0.069 (1.346 – 1.752) 0 – 8 TYP 0.014 – 0.019 (0.355 – 0.483) LT1328 0.189 – 0.197* (4.801 – 5.004 0.150 – 0.157** (3.810 – 3.988) ...
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... LT1328 U TYPICAL APPLICATIONS IrDA Receiver LT1328 SHDN BPV22NF* FILTER MODE FILTER V 10nF CC SWITCH 4 5 GND DATA *TEMIC C4 330pF E1 GND RELATED PARTS PART NUMBER DESCRIPTION TM LT1016 UltraFast LT1116 Single Supply, Ground Sensing Comparator LT1319 Multiple Modulation Standard Infrared Receiver ...