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PCM3168APAPR Datasheet(PDF) 55 Page - Texas Instruments |
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PCM3168APAPR Datasheet(HTML) 55 Page - Texas Instruments |
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55 / 66 page ![]() APPLICATION INFORMATION Termination VIN1+ VIN1- VIN2+ VIN2- VIN3+ VIN3- VIN4+ VIN4- VIN5+ VIN5- VIN6+ VIN6- VDD1 DGND1 VDD2 DGND2 VCCAD1 AGNDA1 VCCAD2 AGNDAD2 VCOMAD VREFAD1 VREFAD2 VOUT1+ VOUT1- VOUT2+ VOUT2- VOUT3+ VOUT3- VOUT4+ VOUT4- VOUT5+ VOUT5- VOUT6+ VOUT6- VOUT7+ VOUT7- VOUT8+ VOUT8- VCCDA1 AGNDDA1 VCCDA2 AGNDDA2 VCOMDA PCM3168A PCM3168A-Q1 C5 C6 C1 C7 C2 C3 C4 C8 C11 C9 C10 C12 ControlMCU AnalogOutput LPFandBuffer AnalogInput DigitalAudioProcessor R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 + + + 0V 5V 0V 3.3V + AnalogInput AnalogInput AnalogInput AnalogInput AnalogInput AnalogOutput LPFandBuffer AnalogOutput LPFandBuffer AnalogOutput LPFandBuffer AnalogOutput LPFandBuffer AnalogOutput LPFandBuffer AnalogOutput LPFandBuffer AnalogOutput LPFandBuffer + + 3.3V 48 3.3V 48 48 0V 48 0V (1) (2) (3) (4) PCM3168A PCM3168A-Q1 www.ti.com ......................................................................................................................................................................................... SBAS452 – SEPTEMBER 2008 A typical circuit connection for six-channel analog in and eight-channel analog out is shown in Figure 56. C1 through C6 are 1-µF ceramic capacitors dependent on power-supply quality. C7 and C8 are 10-µF electrolytic capacitors dependent on power-supply quality. C9 and C10 are 10-µF electrolytic capacitors. C11 and C12 are 10-µF electrolytic capacitors. R1 through R12 are 22-Ω to 100- Ω resistors. Figure 56. Example Board Layout Termination for mode control: any one of the circuits shown in Figure 57 must be applied according to the necessary mode/configuration. Resistor value must be 220 k Ω, ±5% tolerant. The PowerPAD must be tied to the ground plane with enough electrical and thermal conductivity; see the example board layout in Figure 56. Figure 57. Typical Circuit Connections Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 55 Product Folder Link(s): PCM3168A PCM3168A-Q1 |
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