Signal

R2S15904SP Datasheet – Optimum Audio Signal Processor IC

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Part Number: R2S15904SP

Function: Optimum Audio Signal Processor IC, 10 V, 33 kOhm, 25 mA

Package: SOP 28 Pin Type

Manufacturer: Renesas Electronics

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R2S15904SP datasheet

Description

The R2S15904SP is an optimum audio signal processor IC for TV. The IC has a 5ch input selector, surround/pseudo stereo, tone control(2band), output gain control and 2ch master volume. The IC can control all of these functions with I2C bus.

Features

R2S15904SP features

1.  Volume: 0 to –89dB, –∞/ 1dB step. Each channel is independence control.
2.  5 input selector + MUTE
3.  2 Rec output (0/–2dB)
4.  Auto gain control (AGC level 4step)
5.  Tone control Bass: –15dB to +15dB/ 1dB step, Treble: –15dB to +15dB/ 1dB step
6.  Surround <Low/ High>/ Pseudo stereo
7.  Mode selector: Bypass/ Tone / Tone & Pseudo Stereo or Surround
8.  Output gain control: 0dB/ +4.5dB

Reference Site: http://cyx.en.seekic.com/product/integrated_circuits_ics/R2S15904SP_R2S15904SP.html

R2S15904SP Pinouts

R2S15904SP pinout

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R2S15903SP pinout

 

R2S15904SP Datasheet

R2S15904SP pdf

R2S15903SP Datasheet

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TEF6890H Datasheet – Car Radio Integrated Signal Processor

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Part Number: TEF6890H

Function: Car Radio Integrated Signal Processor

Package : QFP44 type

Manufacturer: Philips Semiconductors, NXP

Image :

TEF6890H datasheet

Description

The TEF6890H is a monolithic BiMOS integrated circuit comprising the stereo decoder function, weak signal processing and ignition noise blanking facility for AM and FM combined with input selector and tone/volume control for AM and FM car radio applications. The RDS/RBDS demodulator function is included. The device operates with a supply voltage of 8 to 9 V.

 

Features

Weak signal processing
· FM weak signal processing with detectors for RF level, Ultrasonic Noise (USN) and Wideband AM (WAM) information
· AM weak signal processing with detectors for level information
· AM processing with soft mute and High Cut Control (HCC)
· FM processing with soft mute, stereo blend and HCC
· Setting of the sensitivity of the detectors and start and slope of the control functions via I2C-bus
· Weather band de-emphasis
· Level, USN and WAM read-out via I2C-bus (signal quality detectors)
· Full support of tuner AF update functions with TEA684x tuner ICs, FM audio processing holds the detectors for the FM weak signal processing in their present state during RDS updating.

 

Pinout
TEF6890H pinout

Applications

 

TEF6890H Datasheet PDF Download