LME49740_14 Datasheet, PDF (17/24 Pages) Texas Instruments – Quad High-Performance, High-Fidelity Audio Operational Amplifier

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Phono
Cartridge
A_v = 35 dB
E_n = 0.33 μV
S/N = 90 dB
f = 1 kHz
A Weighted
A Weighted, V_IN = 10 mV
@f = 1 kHz
LME49740
SNAS377A – FEBRUARY 2007 – REVISED FEBRUARY 2008
33 PF
400 pF
47k
+
1
4
LME49740
-
16k
200k
10 PF
470
100k
390 ^{4.7 nF}
100 PF
15 nF
Figure 39. RIAA Preamp
V_I
R
R1
200
+
1
4
LME49740
-
R2
10k
R5
10k
-
1
4
LME49740
V2
+
R
R3
R4
10k
10k
-
1
4
LME49740
V_O
+
R6
R7
10k
10k
Illustration is:
V0 = 101(V2 − V1)
Figure 40. Balanced Input Mic Amp
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