Datasheet LT1739 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | Dual 500mA, 200MHz xDSL Line Driver Amplifier |
| Pages / Page | 20 / 6 — TYPICAL PERFOR A CE CHARACTERISTICS. Differential Harmonic Distortion. … |
| File Format / Size | PDF / 293 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. Differential Harmonic Distortion. Undistorted Output Swing. vs Supply Current
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LT1739
W U TYPICAL PERFOR A CE CHARACTERISTICS Differential Harmonic Distortion Undistorted Output Swing vs Supply Current vs Frequency
–40 20 VO = 10VP-P –45 VS = ±12V AV = 10 –50 RL = 50Ω ) 15 P-P –55 f = 1MHz, HD3 –60 10 –65 f = 100kHz, HD2 SFDR > 40dB DISTORTION (dBc) –70 TA = 25°C OUTPUT VOLTAGE (V 5 V –75 S = ±12V f = 100kHz, HD3 AV = 10 –80 RL = 50Ω f = 1MHz, HD2 IS PER AMPLIFIER = 10mA –85 0 2 3 4 5 6 7 8 9 10 11 100k 300k 1M 3M 10M I FREQUENCY (Hz) SUPPLY PER AMPLIFIER (mA) 1739 G18 1739 G19
TEST CIRCUIT SUPPLY BYPASSING
12V 12V + 0.1µF 4.7µF + V+ RBIAS 0.1µF + 4.7µF +IN A + 0.1µF 4.7µF SHDN VOUT(P-P) –12V A –IN A OUT A – 12.7Ω 10k –12V 1k 1:2* 110 OUT (+) Ω RL ≈ 50Ω EIN SPLITTER 100 LINE LOAD 0.01µF OUT (–) 49.9Ω 110Ω 1k MINICIRCUITS ZSC5-2-2 10k 12.7Ω – –IN B OUT B 1739 TC B +IN B SHDNREF + V– *COILCRAFT X8390-A OR EQUIVALENT VOUTP-P AMPLITUDE SET AT EACH AMPLIFIER OUTPUT –12V DISTORTION MEASURED ACROSS LINE LOAD 1739fas, sn1739 6
W U TYPICAL PERFOR A CE CHARACTERISTICS Differential Harmonic Distortion Undistorted Output Swing vs Supply Current vs Frequency
–40 20 VO = 10VP-P –45 VS = ±12V AV = 10 –50 RL = 50Ω ) 15 P-P –55 f = 1MHz, HD3 –60 10 –65 f = 100kHz, HD2 SFDR > 40dB DISTORTION (dBc) –70 TA = 25°C OUTPUT VOLTAGE (V 5 V –75 S = ±12V f = 100kHz, HD3 AV = 10 –80 RL = 50Ω f = 1MHz, HD2 IS PER AMPLIFIER = 10mA –85 0 2 3 4 5 6 7 8 9 10 11 100k 300k 1M 3M 10M I FREQUENCY (Hz) SUPPLY PER AMPLIFIER (mA) 1739 G18 1739 G19
TEST CIRCUIT SUPPLY BYPASSING
12V 12V + 0.1µF 4.7µF + V+ RBIAS 0.1µF + 4.7µF +IN A + 0.1µF 4.7µF SHDN VOUT(P-P) –12V A –IN A OUT A – 12.7Ω 10k –12V 1k 1:2* 110 OUT (+) Ω RL ≈ 50Ω EIN SPLITTER 100 LINE LOAD 0.01µF OUT (–) 49.9Ω 110Ω 1k MINICIRCUITS ZSC5-2-2 10k 12.7Ω – –IN B OUT B 1739 TC B +IN B SHDNREF + V– *COILCRAFT X8390-A OR EQUIVALENT VOUTP-P AMPLITUDE SET AT EACH AMPLIFIER OUTPUT –12V DISTORTION MEASURED ACROSS LINE LOAD 1739fas, sn1739 6
