数据表
PCM3793 PCM3793A PCM3794 PCM3794A SNR DAC / SNR ADC(Typ)(dB) 93 / 90 93 / 90 93 / 90 93 / 90 # DACs / # ADCs 2 / 2 2 / 2 2 / 2 2 / 2 # Inputs / # Outputs 6 / 5 6 / 5 6 / 3 6 / 3 Sampling Rate(Max)(kHz) 50 50 50 50 Resolution(Bits) 16 16 16 16 Digital Audio Interface L, R, I2S, DSP L, R, I2S, DSP L, R, I2S, DSP L, R, I2S, DSP Control Interface SPI, I2C SPI, I2C SPI, I2C SPI, I2C Analog Supply(V) 2.4 - 3.6 2.4 - 3.6 2.4 - 3.6 2.4 - 3.6 Digital Supply(V) 1.71 - 3.6 1.71 - 3.6 1.71 - 3.6 1.71 - 3.6 IO Supply (Volts) 1.71 - 3.6 1.71 - 3.6 1.71 - 3.6 1.71 - 3.6 Pd(Typ)(mW) 7 7 7 7 Additional Features 3D, EQ, Notch filters, ALC 3D, EQ, Notch filters, ALC 3D, EQ, Notch filters, ALC 3D, EQ, Notch filters, ALC Operating Temp Range(Celsius) -40 to 85 -40 to 85 Pin/Package 32QFN 32QFN 32QFN 32QFN 样片 样片 样片 样片 库存 库存 库存 库存
产品信息
特性
Analog Front End:Stereo Single-Ended Input With Multiplexer Mono Differential Input Stereo Programmable Gain Amplifier Microphone Boost Amplifier (20 dB) and Bias Analog BackEnd:Stereo/Mono Line Output With Volume Stereo/Mono Headphone Amplifier With Volume and Capless Mode Stereo/Mono Digital Speaker Amplifier (BTL) With Volume (PCM3793) Analog Performance:Dynamic Range: 93 dB (DAC) Dynamic Range: 90 dB (ADC) 40-mW + 40-mW Headphone Output at RL = 16 Power Supply Voltage1.71 V to 3.6 V for Digital I/O Section 1.71 V to 3.6 V for Digital Core Section 2.4 V to 3.6 V for Analog Section 2.4 V to 3.6 V for Power Amplifier Section Low Power Dissipation:7 mW in Playback, 1.8 V/2.4 V, 48 kHz 13 mW in Record, 1.8 V/2.4 V, 48 kHz 30 µW in Power Down Sampling Frequency: 5 kHz to 50 kHz Automatic Level Control for Recording Operation From a Single Clock Input Without PLL System Clock:Common-Audio Clock (256 fS /384 fS ), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz Headphone Plug Insert Detection 2 (I2 C) or 3 (SPI) Wire Serial Control Programmable Function by Register Control:Digital Attenuation of DAC: 0 dB to -62 dB Power Up/Down Control for Each Module 6-dB to -70-dB Gain for Analog Outputs 30-dB to -12-dB Gain for Analog Inputs 0/20 dB Boost Selectable for Microphone Input 0-dB to -21-dB Gain for Analog Mixing Parameter Settings for ALC Three-Band Tone Control and 3D Sound High-Pass Filter and Two-Stage Notch Filter Analog Mixing Pop-Noise Reduction Circuit Short and Thermal Protection Circuit Package: 5-mm × 5-mm QFN Pacakge Operation Temperature Range: -40°C to 85°C APPLICATIONSPortable Audio Player, Cellular Phone Video Camcorder, Digital Still Camera PMP/DMB
说明
The PCM3793/94 is a low-power stereo CODEC designed for portable digital audio applications. The device integrates stereo digital speaker amplifier, headphone amplifier, line amplifier, line input, boost amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic level control (ALC). It is available in a small-footprint, 5-mm × 5-mm QFN package. The PCM3793/94 accepts right-justified, left-justified, I2 S, and DSP formats, providing easy interfacing to audio DSP, decoder, and encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a two- or three-wire serial control port.