apa2068ka Anpec Electronics Corporation, apa2068ka Datasheet
apa2068ka
Available stocks
Related parts for apa2068ka
apa2068ka Summary of contents
Page 1
APA2068 Stereo 2.6W Audio Power Amplifier (with DC_Volume Control) Feat ures Low Operating Current with 9mA Improved Depop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs High PSRR 32 Steps Volume Adjustable by DC Voltage with Hysteresis 2.6W per ...
Page 2
APA2068 Block Diagram LIN- RIN SE/BTL MUTE Absolute Maximum Ratings (Over operating free-air temperature range unless otherwise noted.) Symbol V ...
Page 3
APA2068 Thermal Characterist ics Symbol R Thermal Resistance from Junction to Ambient in Free Air THJA Electrical Characterist ics V =5V, -20°C<T <85°C (unless otherwise noted Symbol Parameter V Supply Voltage Supply Current Supply Current ...
Page 4
APA2068 Electrical Characteristics ( Cont.) Operating Characteristics, SE mode. V Symbol Parameter P O Maximum Output Power THD+N Total Harmonic Distortion Plus Noise PSRR Power Ripple Rejection Ratio Xtalk Channel Separation S/N Signal to Noise Ratio Pin Descript ion SHUTDOWN ...
Page 5
APA2068 Pin Funct ion Descript ion ( Cont .) Pin Config No. Name 9 LOUT- 10,15 VDD 11 LOUT+ 13 SE/BTL 14 ROUT+ 16 ROUT- Cont rol I nput Table SHUTDOWN Typical Application Circuit VOLMAX VOLMAX ...
Page 6
APA2068 Volume Cont rol Table_BTL Mode Supply Voltage Vdd=5V Gain(dB) High(V) 20 0.12 18 0.23 16 0.34 14 0.46 12 0.57 10 0.69 8 0.80 6 0.91 4 1.03 2 1.14 0 1.25 -2 1.37 -4 1.48 -6 1.59 -8 ...
Page 7
APA2068 Typical Char act erist ics THD+N vs. Output Power =20dB f = 1KHz BTL 0.1 0.01 0 0.5 1 1.5 2 Output Power (W) ...
Page 8
APA2068 Typical Characterist ics ( Cont .) THD+N vs. Frequency 1.8W BTL 20dB 0 6dB 0.01 20 100 1k Frequency (Hz) THD+N vs. Output Power ...
Page 9
APA2068 Typical Characterist ics ( Cont .) THD+N vs. Frequency Po=1.5W BTL 6dB 0 20dB 0.01 20 100 1k Frequency (Hz) THD+N vs. Output Power 10 V ...
Page 10
APA2068 Typical Characterist ics ( Cont .) THD+N vs. Frequency 6dB BTL 0.5W 0 0.9W 0.01 20 100 1k Frequency (Hz) THD+N vs. Output Power ...
Page 11
APA2068 Typical Characterist ics ( Cont .) THD+N vs. Frequency =16 L Po=125mW Co=1000 0dB 0 14dB 0. 100 Frequency (Hz) THD+N vs. Output Power 10 ...
Page 12
APA2068 Typical Characterist ics ( Cont .) THD+N vs. Frequency =32 L Po=65mW Co=1000 0dB 0 14dB 0.01 20 100 1k Frequency (Hz) Frequency Response +20 Amplitude( ...
Page 13
APA2068 Typical Characterist ics ( Cont .) Frequency Response +14 Amplitude(14dB) +10 Phase(14dB Amplitude(0dB =5V DD Phase(0dB Co=1000 f Po=60mW SE -10 20 100 1k 10k Frequency (Hz) Crosstalk vs. Frequency +0 ...
Page 14
APA2068 Typical Characterist ics ( Cont .) Crosstalk vs. Frequency + =16 L -10 Co=1000 f -20 Po=125mW SE -30 -40 -50 Right to Left -60 Left to Right -70 -80 -90 -100 20 100 1k ...
Page 15
APA2068 Typical Characterist ics ( Cont .) PSRR vs. Frequency +0 V = Vin=200mV -20 Av=20dB BTL -30 -40 -50 -60 -70 -80 -90 -100 100 1k 20 Frequency (Hz) Mute Attenuation vs. Frequency +0 ...
Page 16
APA2068 Typical Characterist ics ( Cont .) Gain vs. DC volume Voltage -10 Dow n -20 Up -30 -40 -50 - Load -70 BTL -80 0.0 0.5 1.0 1.5 2.0 2.5 3.0 DC ...
Page 17
APA2068 Applicat ion Descript ions BTL Operation The APA2068 output stage (power amplifier) has two pairs of operational amplifiers internally, allowed for different amplifier configurations. Volume Control OP1 amplifier output signal Vbias Circuit Figure 1: APA2068 internal configuration (each channel) ...
Page 18
APA2068 Applicat ion Descript ions ( Cont .) Output SE/BTL Operation (Cont.) output impedance state, which configures the APA2068 as SE driver from OUT+. I approximately one-half in SE mode. Control of the SE/BTL input can be a logic-level TTL ...
Page 19
APA2068 Applicat ion Descript ions ( Cont .) Input Resistance, Ri (Cont.) BTL mode operation brings the factor the gain equation due to the inverting amplifier mirroring the voltage swing across the load. For the varying gain ...
Page 20
APA2068 Applicat ion Descript ions ( Cont .) Effective Bypass Capacitor, Cbypass (Cont.) maintained << Cbypass x 125k 100k x Ci The bypass capacitor is fed thru from a 125k resistor inside the amplifier and the 100k is ...
Page 21
APA2068 Applicat ion Descript ions ( Cont .) Optimizing Depop Circuitry (Cont.) constant can be relatively large. To reduce transients in SE mode, an external 1k resistor can be placed in parallel with the internal 10k resistor. The tradeoff for ...
Page 22
APA2068 Applicat ion Descript ions ( Cont .) BTL Amplifier Efficiency (Cont.) load is increased resulting in a nearly flat internal power dissipation over the normal operating range. Note that the efficiency of the amplifier is quite low for lower ...
Page 23
APA2068 Applicat ion Descript ions ( Cont .) Thermal Pad Considerations (Cont.) design issues are not properly addressed, the APA2068 4 will go into thermal shutdown when driving a 4 load. The thermal pad on the bottom of the APA2068 ...
Page 24
APA2068 Package I nformat ion SOP-16-P (150mil) TOP VIEW 0.050 typ. D SIDE VIEW L Dim Min. A 1.35 A1 0. 5.79 L 0.41 0 Copyright ANPEC Electronics Corp. Rev. A.2 - Jul., ...
Page 25
APA2068 Physical Specifications Terminal Material Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb), 100%Sn Lead Solderability Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3. Reflow Condit ion (IR/Convection or VPR Reflow Tsmax Tsmin 25 Classificat ion ...
Page 26
APA2068 Classificat ion Reflow Pr ofiles( Cont .) Table 1. SnPb Entectic Process – Package Peak Reflow Temperature s Package Thickness <2.5 mm 2.5 mm Table 2. Pb-free Process – Package Classification Reflow Temperatures Package Thickness <1.6 mm 1.6 mm ...
Page 27
APA2068 Carrier Tape & Reel Dimensions( Cont .) Application A B 330 1 100 +2 SOP- 16 7.5 0.1 1.5 +0.1 Cover Tape Dimensions Application Carrier Width SOP- 16-P Customer Service Anpec Electronics Corp. Head Office : 5F, ...