LMX2531 Datenblatt PDF ( Pinout, schematic )

Teilenummer : LMX2531

Function : High Performance Frequency Synthesizer System with Integrated VCO / 36 pin 6x6x0.8 mm WQFN Package.

Hersteller : Texas Instruments

Pinout :

LMX2531 datenblatt

Beschreibung :

The LMX2531 is a low power, high performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and also adjustable. Also included are integrated ultra-low noise and high precision LDOs for the PLL and VCO which give higher supply noise immunity and also more consistent performance.

When combined with a high quality reference oscillator, the LMX2531 generates very stable, low noise local oscillator signals for up and down conversion in wireless communication devices. The LMX2531 is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. There are several different versions of this product in order to accommodate different frequency bands. Device programming is facilitated using a three-wire MICROWIRE Interface that can operate down to 1.8 volts. Supply voltage range is 2.8 to 3.2 Volts. The LMX2531 is available in a 36 pin 6x6x0.8 mm WQFN Package.

Official Site : http://www.ti.com/product/lmx2531

Datenblatt PDF Download

LMX2531 pdf

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TDA7439DS Datenblatt PDF ( Pinout, schematic )

Teilenummer : TDA7439DS

Function : Three-band digitally-controlled audio processor

Hersteller : STMicroelectronics

Pinout :

TDA7439DS datenblatt

Beschreibung :

The TDA7439 is a volume, tone (bass, mid-range
and treble) and balance (left/right) processor for
high-quality audio applications in car-radio and
Hi-Fi systems. Selectable input gain is provided.
All the functions are controlled by serial bus.
The AC signal setting is obtained by resistor
networks and switches combined with operational
The TDA7439 employs BIPOLAR/CMOS
technology to provide low distortion, low noise
and DC stepping.

Input multiplexer
– four stereo inputs
– selectable input gain for optimal adaptation
to different sources
Single stereo output
Treble, mid-range and bass control in 2-dB
Volume control in 1-dB steps
Two speaker attenuators:
– two independent speaker controls in 1-dB
steps for balance facility
– independent mute function
All functions are programmable via serial bus

Datenblatt PDF Download

TDA7439DS pdf

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