LME49860 44V Dual High Performance, High Fidelity Audio Operational Amplifier General Description RL = 2kΩ 0.00003% (typ) The LME49860 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49860 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49860 combines extremely low voltage noise density (2.7nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49860 has a high slew rate of ±20V/μs and an output current capability of ±26mA. Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 1V of either power supply voltage and to within 1.4V when driving 600Ω loads. The LME49860's outstanding CMRR (120dB), PSRR (120dB), and VOS (0.1mV) give the amplifier excellent operational amplifier DC performance. The LME49860 has a wide supply range of ±2.5V to ±22V. Over this supply range the LME49860 maintains excellent common-mode rejection, power supply rejection, and low input bias current. The LME49860 is unity gain stable. This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF. The LME49860 is available in 8–lead narrow body SOIC and 8–lead Plastic DIP packages. Demonstration boards are available for each package. RL = 600Ω 0.00003% (typ) Key Specifications ■ Power Supply Voltage Range ±2.5V to ±22V ■ THD+N ■ Input Noise Density 2.7nV/√Hz (typ) ■ Slew Rate ±20V/μs (typ) ■ Gain Bandwidth Product 55MHz (typ) ■ Open Loop Gain (RL = 600Ω) 140dB (typ) ■ Input Bias Current 10nA (typ) ■ Input Offset Voltage 0.1mV (typ) ■ DC Gain Linearity Error 0.000009% Features ■ ■ ■ ■ ■ Easily drives 600Ω loads Optimized for superior audio signal fidelity Output short circuit protection PSRR and CMRR exceed 120dB (typ) SOIC, DIP packages Applications ■ ■ ■ ■ ■ ■ ■ ■ ■ Ultra high quality audio amplification High fidelity preamplifiers High fidelity multimedia State of the art phono pre amps High performance professional audio High fidelity equalization and crossover networks High performance line drivers High performance line receivers High fidelity active filters (AV = 1, VOUT = 3VRMS, fIN = 1kHz) Typical Application 202151k5 Passively Equalized RIAA Phono Preamplifier © 2007 National Semiconductor Corporation 202151 www.national.com LME49860 44V Dual High Performance, High Fidelity Audio Operational Amplifier June 2007 LME49860 Connection Diagrams 20215155 Order Number LME49860MA See NS Package Number — M08A Order Number LME49860NA See NS Package Number — N08E LME49860MA Top Mark LME49860NA Top Mark 20215101 20215102 N — National Logo Z — Assembly Plant code X — 1 Digit Date code TT — Die Traceability L49860 — LME49860 MA — Package code www.national.com N — National Logo U — Fabrication code Z — Assembly Plant code XY — 2 Digit Date code TT — Die Traceability NA — Package code 2 If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage (VS = V+ - V-) Storage Temperature Input Voltage 46V −65°C to 150°C Output Short Circuit (Note 3) ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) Pins 1, 4, 7 and 8 100V 150°C θJA (SO) 145°C/W θJA (NA) 102°C/W Operating Ratings (V-) - 0.7V to (V+) + 0.7V Continuous 2000V Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage Range −40°C ≤ TA ≤ 85°C ±2.5V ≤ VS ≤ ±22V 200V Electrical Characteristics for the LME49860 (Note 1) The following specifications apply for VS = ±18V and ±22V, RL = 2kΩ, RSOURCE = 10Ω, fIN = 1kHz, TA = 25°C, unless otherwise specified. LME49860 Symbol Parameter Conditions Typical Limit (Note 6) (Note 7) Units (Limits) AV = 1, VOUT = 3Vrms THD+N Total Harmonic Distortion + Noise RL = 2kΩ 0.00003 0.00003 RL = 600Ω IMD Intermodulation Distortion GBWP Gain Bandwidth Product SR Slew Rate AV = 1, VOUT = 3VRMS Two-tone, 60Hz & 7kHz 4:1 % (max) 0.00009 0.00005 % 55 45 MHz (min) ±20 ±15 V/μs (min) FPBW Full Power Bandwidth VOUT = 1VP-P, –3dB referenced to output magnitude at f = 1kHz ts Settling time AV = –1, 10V step, CL = 100pF 0.1% error range 1.2 Equivalent Input Noise Voltage fBW = 20Hz to 20kHz 0.34 0.65 μVRMS Equivalent Input Noise Density f = 1kHz f = 10Hz 2.7 6.4 4.7 nV/√Hz in Current Noise Density f = 1kHz f = 10Hz 1.6 3.1 VOS Offset Voltage ΔVOS/ΔTemp Average Input Offset Voltage Drift vs –40°C ≤ TA ≤ 85°C Temperature PSRR (Note 8) Average Input Offset Voltage Shift vs VS = ±18V, Δ VS = 24V Power Supply Voltage VS = ±22V, Δ VS = 30V en 10 MHz μs (max) (max) pA/√Hz VS = ±18V ±0.12 ±0.7 mV (max) VS = ±22V ±0.14 ±0.7 mV (max) μV/°C 0.2 120 120 110 dB dB (min) ISOCH-CH Channel-to-Channel Isolation fIN = 1kHz fIN = 20kHz 118 112 IB Input Bias Current VCM = 0V 10 ΔIOS/ΔTemp Input Bias Current Drift vs Temperature –40°C ≤ TA ≤ 85°C 0.1 IOS Input Offset Current VCM = 0V 11 65 nA (max) VS = ±18V +17.1 –16.9 (V+) – 2.0 (V-) + 2.0 V (min) V (min) VS = ±22V +21.0 –20.8 (V+) – 2.0 (V-) + 2.0 V (min) V (min) VIN-CM Common-Mode Input Voltage Range 3 dB 72 nA (max) nA/°C www.national.com LME49860 Pins 2, 3, 5 and 6 Junction Temperature Thermal Resistance Absolute Maximum Ratings (Notes 1, 2) LME49860 LME49860 Symbol Parameter Conditions VS = ±18V CMRR Common-Mode Rejection -12V ≤ VCM ≤ 12V VS = ±22V -15V ≤ VCM ≤ 15V ZIN Differential Input Impedance Common Mode Input Impedance –10V<Vcm<10V Typical Limit (Note 6) (Note 7) 120 120 Units (Limits) dB 110 dB (min) 30 kΩ 1000 MΩ 140 140 140 dB dB dB VS = ±18V –12V≤Vout≤12V RL = 600Ω RL = 2kΩ AVOL Open Loop Voltage Gain RL = 10kΩ VS = ±22V –15V≤Vout≤15V RL = 600Ω RL = 2kΩ RL = 10kΩ VOUTMAX IOUT Maximum Output Voltage Swing Output Current 140 140 140 125 dB (min) dB dB RL = 600Ω VS = ±18V VS = ±22V ±16.7 ±20.4 RL = 2kΩ VS = ±18V VS = ±22V ±17.0 ±21.0 V V RL = 10kΩ VS = ±18V VS = ±22V ±17.1 ±21.2 V V RL = 600Ω VS = ±20V VS = ±22V ±31 ±37 ±19.0 ±30 +53 –42 IOUT-CC Instantaneous Short Circuit Current ROUT Output Impedance fIN = 10kHz Closed-Loop Open-Loop CLOAD Capacitive Load Drive Overshoot 100pF IS Total Quiescent Current IOUT = 0mA VS = ±18V VS = ±22V V V (min) mA mA (min) mA 0.01 13 Ω 16 % 10.2 10.5 13 mA mA (max) Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Note 2: Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 3: Amplifier output connected to GND, any number of amplifiers within a package. Note 4: Human body model, 100pF discharged through a 1.5kΩ resistor. Note 5: Machine Model ESD test is covered by specification EIAJ IC-121-1981. A 200pF cap is charged to the specified voltage and then discharged directly into the IC with no external series resistor (resistance of discharge path must be under 50Ω). Note 6: Typical specifications are specified at +25ºC and represent the most likely parametric norm. Note 7: Tested limits are guaranteed to National's AOQL (Average Outgoing Quality Level). Note 8: PSRR is measured as follows: For VS = ±22V, VOS is measured at two supply voltages, ±7V and ±22V. PSRR = | 20log(ΔVOS/ΔVS) |. www.national.com 4 LME49860 Typical Performance Characteristics THD+N vs Output Voltage VCC = 15V, VEE = –15V RL = 2kΩ THD+N vs Output Voltage VCC = 12V, VEE = –12V RL = 2kΩ 202151k6 202151k7 THD+N vs Output Voltage VCC = 22V, VEE = –22V RL = 2kΩ THD+N vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 2kΩ 202151k8 202151i4 THD+N vs Output Voltage VCC = 15V, VEE = –15V RL = 600Ω THD+N vs Output Voltage VCC = 12V, VEE = –12V RL = 600Ω 202151k9 202151l0 5 www.national.com LME49860 THD+N vs Output Voltage VCC = 22V, VEE = –22V RL = 600Ω THD+N vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 600Ω 202151l1 202151i6 THD+N vs Output Voltage VCC = 15V, VEE = –15V RL = 10kΩ THD+N vs Output Voltage VCC = 12V, VEE = –12V RL = 10kΩ 202151l2 202151l3 THD+N vs Output Voltage VCC = 22V, VEE = –22V RL = 10kΩ THD+N vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 10kΩ 202151l4 202151i5 www.national.com 6 LME49860 THD+N vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS RL = 2kΩ THD+N vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS RL = 2kΩ 20215163 20215162 THD+N vs Frequency VCC = 22V, VEE = –22V, VOUT = 3VRMS RL = 2kΩ THD+N vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS RL = 600Ω 20215164 20215159 THD+N vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS RL = 600Ω THD+N vs Frequency VCC = 22V, VEE = –22V, VOUT = 3VRMS RL = 600Ω 202151k3 20215160 7 www.national.com LME49860 THD+N vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS RL = 10kΩ THD+N vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS RL = 10kΩ 20215167 20215166 THD+N vs Frequency VCC = 22V, VEE = –22V, VOUT = 3VRMS RL = 10kΩ IMD vs Output Voltage VCC = 15V, VEE = –15V RL = 2kΩ 20215168 202151e6 IMD vs Output Voltage VCC = 12V, VEE = –12V RL = 2kΩ IMD vs Output Voltage VCC = 22V, VEE = –22V RL = 2kΩ 202151e5 www.national.com 202151e7 8 LME49860 IMD vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 2kΩ IMD vs Output Voltage VCC = 15V, VEE = –15V RL = 600Ω 202151e2 202151e4 IMD vs Output Voltage VCC = 12V, VEE = –12V RL = 600Ω IMD vs Output Voltage VCC = 22V, VEE = –22V RL = 600Ω 202151e0 202151e3 IMD vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 600Ω IMD vs Output Voltage VCC = 15V, VEE = –15V RL = 10kΩ 202151e1 202151f1 9 www.national.com LME49860 IMD vs Output Voltage VCC = 12V, VEE = –12V RL = 10kΩ IMD vs Output Voltage VCC = 22V, VEE = –22V RL = 10kΩ 202151f0 202151f2 IMD vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 10kΩ Voltage Noise Density vs Frequency 202151h6 202151l6 Current Noise Density vs Frequency Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS AV = 0dB, RL = 2kΩ 202151h7 202151c8 www.national.com 10 LME49860 Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 10VRMS AV = 0dB, RL = 2kΩ Crosstalk vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS AV = 0dB, RL = 2kΩ 202151c9 202151c6 Crosstalk vs Frequency VCC = 12V, VEE = –12V, VOUT = 10VRMS AV = 0dB, RL = 2kΩ Crosstalk vs Frequency VCC = 22V, VEE = –22V, VOUT = 3VRMS AV = 0dB, RL = 2kΩ 202151c7 202151d0 Crosstalk vs Frequency VCC = 22V, VEE = –22V, VOUT = 10VRMS AV = 0dB, RL = 2kΩ Crosstalk vs Frequency VCC = 2.5V, VEE = –2.5V, VOUT = 1VRMS AV = 0dB, RL = 2kΩ 202151d1 202151n8 11 www.national.com LME49860 Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS AV = 0dB, RL = 600Ω Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 10VRMS AV = 0dB, RL = 600Ω 202151d6 202151d7 Crosstalk vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS AV = 0dB, RL = 600Ω Crosstalk vs Frequency VCC = 12V, VEE = –12V, VOUT = 10VRMS AV = 0dB, RL = 600Ω 202151d4 202151d5 Crosstalk vs Frequency VCC = 22V, VEE = –22V, VOUT = 3VRMS AV = 0dB, RL = 600Ω Crosstalk vs Frequency VCC = 22V, VEE = –22V, VOUT = 10VRMS AV = 0dB, RL = 600Ω 202151d8 www.national.com 202151d9 12 LME49860 Crosstalk vs Frequency VCC = 2.5V, VEE = –2.5V, VOUT = 1VRMS AV = 0dB, RL = 600Ω Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS AV = 0dB, RL = 10kΩ 202151d2 202151o0 Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 10VRMS AV = 0dB, RL = 10kΩ Crosstalk vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS AV = 0dB, RL = 10kΩ 202151n7 202151n9 Crosstalk vs Frequency VCC = 12V, VEE = –12V, VOUT = 10VRMS AV = 0dB, RL = 10kΩ Crosstalk vs Frequency VCC = 22V, VEE = –22V, VOUT = 3VRMS AV = 0dB, RL = 10kΩ 202151n6 202151n5 13 www.national.com LME49860 Crosstalk vs Frequency VCC = 22V, VEE = –22V, VOUT = 10VRMS AV = 0dB, RL = 10kΩ Crosstalk vs Frequency VCC = 2.5V, VEE = –2.5V, VOUT = 1VRMS AV = 0dB, RL = 10kΩ 202151n3 202151n4 PSRR+ vs Frequency VCC = 15V, VEE = –15V RL = 2kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 15V, VEE = –15V RL = 2kΩ, VRIPPLE = 200mVpp 202151o1 202151n2 PSRR+ vs Frequency VCC = 12V, VEE = –12V RL = 2kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 12V, VEE = –12V RL = 2kΩ, VRIPPLE = 200mVpp 202151n1 www.national.com 202151n0 14 LME49860 PSRR+ vs Frequency VCC = 22V, VEE = –22V RL = 2kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 22V, VEE = –22V RL = 2kΩ, VRIPPLE = 200mVpp 202151m9 202151o3 PSRR+ vs Frequency VCC = 2.5V, VEE = –2.5V RL = 2kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 2.5V, VEE = –2.5V RL = 2kΩ, VRIPPLE = 200mVpp 202151o6 202151m8 PSRR+ vs Frequency VCC = 15V, VEE = –15V RL = 600Ω, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 15V, VEE = –15V RL = 600Ω, VRIPPLE = 200mVpp 202151o7 202151o2 15 www.national.com LME49860 PSRR+ vs Frequency VCC = 12V, VEE = –12V RL = 600Ω, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 12V, VEE = –12V RL = 600Ω, VRIPPLE = 200mVpp 202151m7 202151o4 PSRR+ vs Frequency VCC = 22V, VEE = –22V RL = 600Ω, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 22V, VEE = –22V RL = 600Ω, VRIPPLE = 200mVpp 202151o5 202151m6 PSRR+ vs Frequency VCC = 2.5V, VEE = –2.5V RL = 600Ω, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 2.5V, VEE = –2.5V RL = 600Ω, VRIPPLE = 200mVpp 202151m5 www.national.com 202151m4 16 LME49860 PSRR+ vs Frequency VCC = 15V, VEE = –15V RL = 10kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 15V, VEE = –15V RL = 10kΩ, VRIPPLE = 200mVpp 202151m2 202151m3 PSRR+ vs Frequency VCC = 12V, VEE = –12V RL = 10kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 12V, VEE = –12V RL = 10kΩ, VRIPPLE = 200mVpp 202151m1 202151m0 PSRR+ vs Frequency VCC = 22V, VEE = –22V RL = 10kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 22V, VEE = –22V RL = 10kΩ, VRIPPLE = 200mVpp 202151l9 202151l8 17 www.national.com LME49860 PSRR+ vs Frequency VCC = 2.5V, VEE = –2.5V RL = 10kΩ, VRIPPLE = 200mVpp PSRR- vs Frequency VCC = 2.5V, VEE = –2.5V RL = 10kΩ, VRIPPLE = 200mVpp 202151l7 202151l5 CMRR vs Frequency VCC = 15V, VEE = –15V RL = 2kΩ CMRR vs Frequency VCC = 12V, VEE = –12V RL = 2kΩ 202151f7 202151g0 CMRR vs Frequency VCC = 22V, VEE = –22V RL = 2kΩ CMRR vs Frequency VCC = 2.5V, VEE = –2.5V RL = 2kΩ 202151g3 www.national.com 202151f4 18 LME49860 CMRR vs Frequency VCC = 15V, VEE = –15V RL = 600Ω CMRR vs Frequency VCC = 12V, VEE = –12V RL = 600Ω 202151o9 202151f9 CMRR vs Frequency VCC = 22V, VEE = –22V RL = 600Ω CMRR vs Frequency VCC = 2.5V, VEE = –2.5V RL = 600Ω 202151g5 202151f6 CMRR vs Frequency VCC = 15V, VEE = –15V RL = 10kΩ CMRR vs Frequency VCC = 12V, VEE = –12V RL = 10kΩ 202151o8 202151f8 19 www.national.com LME49860 CMRR vs Frequency VCC = 22V, VEE = –22V RL = 10kΩ CMRR vs Frequency VCC = 2.5V, VEE = –2.5V RL = 10kΩ 202151g4 202151f5 Output Voltage vs Load Resistance VCC = 15V, VEE = –15V THD+N = 1% Output Voltage vs Load Resistance VCC = 12V, VEE = –12V THD+N = 1% 202151h0 202151h1 Output Voltage vs Load Resistance VCC = 22V, VEE = –22V THD+N = 1% Output Voltage vs Load Resistance VCC = 2.5V, VEE = –2.5V THD+N = 1% 202151h2 www.national.com 202151g9 20 Output Voltage vs Total Power Supply Voltage RL = 600Ω, THD+N = 1% 20215107 20215109 Output Voltage vs Total Power Supply Voltage RL = 10kΩ, THD+N = 1% Power Supply Current vs Total Power Supply Voltage RL = 2kΩ 20215108 20215104 Power Supply Current vs Total Power Supply Voltage RL = 600Ω Power Supply Current vs Total Power Supply Voltage RL = 10kΩ 20215106 20215105 21 www.national.com LME49860 Output Voltage vs Total Power Supply Voltage RL = 2kΩ, THD+N = 1% LME49860 Full Power Bandwidth vs Frequency Gain Phase vs Frequency 202151j0 202151j1 Small-Signal Transient Response AV = 1, CL = 10pF Small-Signal Transient Response AV = 1, CL = 100pF 202151i7 www.national.com 202151i8 22 DISTORTION MEASUREMENTS The vanishingly low residual distortion produced by LME49860 is below the capabilities of all commercially available equipment. This makes distortion measurements just slightly more difficult than simply connecting a distortion meter to the amplifier’s inputs and outputs. The solution, however, is quite simple: an additional resistor. Adding this resistor extends the resolution of the distortion measurement equipment. The LME49860’s low residual distortion is an input referred internal error. As shown in Figure 1, adding the 10Ω resistor connected between the amplifier’s inverting and non-inverting 202151k4 FIGURE 1. THD+N and IMD Distortion Test Circuit 23 www.national.com LME49860 inputs changes the amplifier’s noise gain. The result is that the error signal (distortion) is amplified by a factor of 101. Although the amplifier’s closed-loop gain is unaltered, the feedback available to correct distortion errors is reduced by 101, which means that measurement resolution increases by 101. To ensure minimum effects on distortion measurements, keep the value of R1 low as shown in Figure 1. This technique is verified by duplicating the measurements with high closed loop gain and/or making the measurements at high frequencies. Doing so produces distortion components that are within the measurement equipment’s capabilities. This datasheet’s THD+N and IMD values were generated using the above described circuit connected to an Audio Precision System Two Cascade. Application Information LME49860 The LME49860 is a high speed op amp with excellent phase margin and stability. Capacitive loads up to 100pF will cause little change in the phase characteristics of the amplifiers and are therefore allowable. Capacitive loads greater than 100pF must be isolated from the output. The most straightforward way to do this is to put a resistor in series with the output. This resistor will also prevent excess power dissipation if the output is accidentally shorted. 20215127 Complete shielding is required to prevent induced pick up from external sources. Always check with oscilloscope for power line noise. Noise Measurement Circuit Total Gain: 115 dB @f = 1 kHz Input Referred Noise Voltage: en = V0/560,000 (V) RIAA Preamp Voltage Gain, RIAA Deviation vs Frequency Flat Amp Voltage Gain vs Frequency 20215128 www.national.com 20215129 24 LME49860 TYPICAL APPLICATIONS NAB Preamp NAB Preamp Voltage Gain vs Frequency 20215131 20215130 AV = 34.5 F = 1 kHz En = 0.38 μV A Weighted Balanced to Single Ended Converter Adder/Subtracter 20215133 VO = V1 + V2 − V3 − V4 20215132 VO = V1–V2 Sine Wave Oscillator 20215134 25 www.national.com LME49860 Second Order High Pass Filter (Butterworth) Second Order Low Pass Filter (Butterworth) 20215135 20215136 Illustration is f0 = 1 kHz Illustration is f0 = 1 kHz State Variable Filter 20215137 Illustration is f0 = 1 kHz, Q = 10, ABP = 1 www.national.com 26 LME49860 AC/DC Converter 20215138 2 Channel Panning Circuit (Pan Pot) Line Driver 20215139 20215140 27 www.national.com LME49860 Tone Control 20215141 Illustration is: fL = 32 Hz, fLB = 320 Hz fH =11 kHz, fHB = 1.1 kHz 20215142 RIAA Preamp 20215103 Av = 35 dB En = 0.33 μV S/N = 90 dB f = 1 kHz A Weighted A Weighted, VIN = 10 mV www.national.com 28 LME49860 @f = 1 kHz Balanced Input Mic Amp 20215143 Illustration is: V0 = 101(V2 − V1) 29 www.national.com LME49860 10 Band Graphic Equalizer 20215144 fo (Hz) C1 C2 R1 R2 32 0.12μF 4.7μF 75kΩ 500Ω 64 0.056μF 3.3μF 68kΩ 510Ω 125 0.033μF 1.5μF 62kΩ 510Ω 250 0.015μF 8200pF 0.82μF 68kΩ 470Ω 500 0.39μF 62kΩ 470Ω 1k 3900pF 0.22μF 68kΩ 470Ω 2k 2000pF 0.1μF 68kΩ 470Ω 4k 1100pF 0.056μF 62kΩ 470Ω 8k 510pF 0.022μF 68kΩ 510Ω 16k 330pF 0.012μF 51kΩ 510Ω Note 9: At volume of change = ±12 dB Q = 1.7 Reference: “AUDIO/RADIO HANDBOOK”, National Semiconductor, 1980, Page 2–61 www.national.com 30 LME49860 Revision History Rev Date 1.0 06/01/07 Description Initial release. 1.1 06/11/07 Added the LME49860MA and LME49860NA Top Mark Information. 31 www.national.com LME49860 Physical Dimensions inches (millimeters) unless otherwise noted Narrow SOIC Package Order Number LME49860MA NS Package Number M08A Dual-In-Line Package Order Number LME49860NA NS Package Number N08E www.national.com 32 LME49860 Notes 33 www.national.com LME49860 44V Dual High Performance, High Fidelity Audio Operational Amplifier Notes THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS, IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT NATIONAL’S PRODUCT WARRANTY. EXCEPT WHERE MANDATED BY GOVERNMENT REQUIREMENTS, TESTING OF ALL PARAMETERS OF EACH PRODUCT IS NOT NECESSARILY PERFORMED. NATIONAL ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN. BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND APPLICATIONS USING NATIONAL COMPONENTS. PRIOR TO USING OR DISTRIBUTING ANY PRODUCTS THAT INCLUDE NATIONAL COMPONENTS, BUYERS SHOULD PROVIDE ADEQUATE DESIGN, TESTING AND OPERATING SAFEGUARDS. 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