LME49740_14 Datasheet, PDF (12/24 Pages) Texas Instruments – Quad High-Performance, High-Fidelity Audio Operational Amplifier

LME49740
SNAS377A – FEBRUARY 2007 – REVISED FEBRUARY 2008
TYPICAL APPLICATIONS
V_I
TAPE
HEAD
+
1
4
LME49740
V_O
-
15 nF _3.6k
200k
200
+
47 PF
A_V = 34.5
F = 1 kHz
E_n = 0.38 μV
A Weighted
Figure 27. NAB Preamp
70
60
50
40
30
20
10
0
20
100
1k
10k 20k
FREQUENCY (Hz)
Figure 28. NAB Preamp Voltage Gain vs Frequency
V_IN = 10mV, A_V = 34.5dB, f = 1kHz
R
R
V2
R
V1
-
1
4
LME49740
V_O
+
R
www.ti.com
V_O = V1–V2
Figure 29. Balanced to Single-Ended Converter
12
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