Audio

TDA7438 Datasheet PDF – Volume Tone Balance Processor

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Part Number: TDA7438

Function: THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR

Package: SO28, DIP 28 Type

Manufacturer: STMicroelectronics

Image and Pinouts:

TDA7438 datasheet

Description

The TDA7438 is a volume tone (bass, middle and treble) balance (Left/Right) processor for quality audio applications in car-radio and Hi-Fi Systems. Selectable input gain is provided. Control of all the
functions is accomplished by serial bus. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are obtained.

Features

1. INPUT MULTIPLEXER
– 3 STEREO INPUTS
– SELECTABLE INPUT GAIN FOR OPTIMAL ADAPTATION TO DIFFERENT SOURCES
2. ONE STEREO OUTPUT
3. TREBLE, MIDDLE AND BASS CONTROL IN 2.0dB STEPS
4. VOLUME CONTROL IN 1.0dB STEPS
5. TWO SPEAKER ATTENUATORS:
– TWO INDEPENDENT SPEAKER CONTROL IN 1.0dB STEPS FOR BALANCE FACILITY
– -INDEPENDENT MUTE FUNCTION
6. ALL FUNCTION ARE PROGRAMMABLE VIA SERIAL BUS

Other data sheets are available within the file: TDA-7438, TDA7438D, TDA7438D013TR

TDA7438 Datasheet PDF Download


TDA7438 pdf

 

PCM2900C Datasheet – Stereo Audio Codec ( PDF )

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Part Number: PCM2900C

Function: Stereo Audio Codec with USB Interface, Single-Ended Analog Input/Output, and S/PDIF

Package: SSOP-28 type

Manufacturer: Texas Instruments

Pinouts:

PCM2900C datasheet

 

Description

The PCM2900C / PCM2902C are Texas Instruments’single-chip, USB, stereo audio codecs with a USB-compliant full-speed protocol controller and S/PDIF (PCM2902C only). The USB protocol controller requires no software code. The PCM2900C / PCM2902C employ SpAct architecture, TI’s unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct architecture enable playback and record with low clock jitter as well as independent playback and record sampling rates.

Features

• PCM2900C: Without S/PDIF

• PCM2902C: With S/PDIF

• On-Chip USB Interface :
– With Full-Speed Transceivers
– Fully Compliant with USB 2.0 Specification
– Certified by USB-IF
– Partially Programmable Descriptors
– USB Adaptive Mode for Playback
– USB Asynchronous Mode for Record
– Bus Powered

• 16-Bit Delta-Sigma ADC and DAC

• Sampling Rate:
– DAC: 32 kHz, 44.1 kHz, 48 kHz
– ADC: 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz,32 kHz, 44.1 kHz, 48 kHz

• On-Chip Clock Generator with Single 12-MHz Clock Source

• Single Power Supply:
– 5 V Typical (VBUS) • Stereo ADC:
– Analog Performance at VBUS = 5 V:
– THD+N = 0.01%
– SNR = 89 dB
– Dynamic Range = 89 dB
– Decimation Digital Filter:
– Passband Ripple = ±0.05 dB
– Stop Band Attenuation = –65 dB
– Single-Ended Voltage Input
– Antialiasing Filter Included
– Digital HPF Included

 

Other data sheets are available within the file:

PCM2900CDB, PCM2900CDBR, PCM2902C, PCM2902CDB

 

PCM2900C Datasheet PDF Download


PCM2900C pdf