Audio Codec 2ADC / 2DAC 16-Bit 32-Pin VQFN EP T/R, PCM3794ARHBTG4, Texas Instruments

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, I2S, 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.

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 R_L = 16 O

Power Supply Voltage

1.71 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 f_S/384 f_S), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz

Headphone Plug Insert Detection

2 (I²C) 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

APPLICATIONS

Portable Audio Player, Cellular Phone
Video Camcorder, Digital Still Camera
PMP/DMB

Характеристики

Бренд	Texas Instruments
Number_of_dac_outputs	7
Adc_dac_resolution	16 Bit
Number_of_adc_inputs	6
Supplier_package	VQFN EP
Specifications	http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=PCM3794A&&fileType=pdf
Screening_level	Industrial
Schedule_b	8542390000
Sampling_rate	50 ksps
Product_dimensions	5 x 5 x 0.9 mm
Pin_count	32
Operating_temperature	-40 to 85 °C
Operating_supply_voltage	3.3 V
Number_of_dacs	2
Количество каналов	2ADC /2 DAC
Number_of_adcs	2
Msl_level	2
Mounting	Surface Mount
Max_processing_temp	260
Lead_finish	Gold
Kind	General Purpose
Htsn	8542390001
Eccn	EAR99

SKU: PCM3794ARHBTG4

Description