Information as of 2000-01-10
 Latest information online 

UDA1340; Low-voltage low-power stereo audio CODEC with DSP features

• Description • Features • Datasheet • Blockdiagram • Products, packages, availability and ordering • Find similar products

To be kept informed on UDA1340, subscribe to eNews.

Description

The UDA1340 is a single-chip stereo Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC) with signal processing features employing bitstream conversion techniques. The low power consumption and low voltage requirements make the device eminently suitable for use in low-voltage low-power portable digital audio equipment which incorporates recording and playback functions.

The UDA1340 supports the I²S-bus data format with word lengths of up to 20 bits, the MSB-justified data format with word lengths of up to 20 bits and the LSB justified serial data format with word lengths of 16, 18 and 20 bits.

The UDA1340 has special sound processing features in playback mode, de-emphasis, volume, bass boost, treble, and soft mute, which can be controlled via the microcontroller interface.

Features

General

• Low power consumption
• 3.0 V power supply
• 256, 384 and 512f_s system clock
• Small package size (SSOP28)
• ADC plus integrated high pass filter to cancel DC offset
• Overload detector for easy record level control
• Separate power control for ADC and DAC
• Integrated digital filter plus DAC
• No analog post filter required for DAC
• Easy application
• Functions controllable by microcontroller interface.

Multiple format input interface

• I²S-bus, MSB-justified and LSB-justified format compatible
• 1f_s input and output format data rate.

DAC digital sound processing

• Digital volume control
• Digital tone control, bass boost and treble
• dB-linear volume and tone control (low microcontroller load)
• Digital de-emphasis for 32, 44.1 and 48 kHz f_s
• Soft mute.

Advanced audio configuration

• Stereo single-ended input configuration
• Stereo line output (under microcontroller volume control)
• Power-down click prevention circuitry
• High linearity, dynamic range, low distortion.

Datasheet

Type nr.	Title	Publication release date	Datasheet status	Page count	File size (kB)	Datasheet
UDA1340	Low-voltage low-power stereo audio CODEC with DSP features	09-Jul-97	Preliminary Specification	24	154	Open

Blockdiagram

Products, packages, availability and ordering

Partnumber	Order code (12nc)	marking/packing	package	device status	buy online
UDA1340M/N1	9352 202 80112	Standard marking * tube	SOT341	DEV	-
	9352 202 80118	Standard marking * reel pack, SMD, 13"	SOT341	DEV	-
	9352 202 80512	Standard marking * tube dry pack	SOT341	WIT	-
	9352 202 80518	Standard marking * reel dry pack, SMD, 13"	SOT341	WIT	-

Please note, devices listed in the "Products, packages, availability and ordering" table marked with "WIT" are discontinued. Devices marked with "DOD" will be in the near future.
Contact your nearest sales or distributor office for the latest information on product status and availability.

Find similar products:

 UDA1340 links to the similar products page containing an overview of products that are similar in function or related to the part number(s) as listed on this page. The similar products page includes products from the same catalog tree(s) , relevant selection guides and products from the same functional category.