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Series Information for AD1941YSTZ - Analog Devices


  • feature
    16-channel digital audio processor Accepts sample rates up to 192 kHz 28-bit u00d7 28-bit multiplier with full 56-bit accumulator Fully programmable program RAM for custom program download Parameter RAM allows complete control of 1,024 parameters Control port features safeload for transparent parameter updates and complete mode and memory transfer control Target/slew RAM for click-free volume control and dynamic parameter updates Double precision mode for full 56-bit processing PLL for generating MCLK from 64 u00d7 fS, 256 u00d7 fS, 384 u00d7 fS, or 512 u00d7 fS clocks Hardware-accelerated DSP core 21 kB (6,144 words) data memory for up to 128 ms of audio delay at fs = 48 kHz Flexible serial data port with I2 S-compatible, left-justified, and right-justified serial port modes 8- and 16-channel TDM input/output modes On-chip voltage regulator for compatibility with 3.3 V and 5 V systems Programmable low power mode Fast start-up and boot time from power-on or reset 48-lead LQFP plastic package



The AD1940/AD1941 are a complete 28-bit, single-chip, multi- channel audio SigmaDSP™ for equalization, multiband dynamic processing, delay compensation, speaker compensation, and image enhancement. These algorithms can be used to compen- sate for the real world limitations of speakers, amplifiers, and listening environments, resulting in a dramatic improvement of perceived audio quality. The signal processing used in the AD1940/AD1941 is comparable to that found in high end studio equipment. Most of the processing is done in full, 56-bit double-precision mode, resulting in very good, low level signal performance and the absence of limit cycles or idle tones. The dynamics processor uses a sophisticated, multiple-breakpoint algorithm often found in high end broadcast compressors. The AD1940/AD1941 are a fully programmable DSP. Easy to use software allows the user to graphically configure a custom signal processing flow using blocks such as biquad filters, dyna- mics processors, and surround sound processors. An extensive control port allows click-free parameter updates, along with readback capability from any point in the algorithm flow. The AD1940/AD1941’s digital input and output ports allow a glueless connection to ADCs and DACs by multiple, 2-channel serial data streams or TDM data streams. When in TDM mode, the AD1940/AD1941 can input 8 or 16 channels of serial data, and can output 8 or 16 channels of serial data. The input and output port configurations can be individually set. The AD1940 is controlled by a 4-wire SPI® port; the AD1941 is controlled by a 2-wire I2C® bus. Other than the control interface, the functions of the two parts are identical.


Audio Control Type:
Audio Digital Signal Processor
Supply Voltage Range:
2.25V to 2.75V
Control Interface:
Audio IC Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 3 - 168 hours
No SVHC (07-Jul-2017)

Alternate Descriptions

RS Components
Audio Processor 48-Pin LQFP
Newark Electronics
AUDIO SIGNAL PROCESSOR, 16 CH, LQFP-48; Audio Control Type:Audio Digital Signal Processor; Supply Voltage Range:2.25V to 2.75V; Control Interface:I2C; Audio IC Case Style:LQFP; No. of Pins:48Pins; Operating Temperature Min:-40°C RoHS Compliant: Yes
RS Components UK
Audio Processor 48-Pin LQFP
RS Components DE
Audio Prozessor AD1941YSTZ, LQFP 48-Pin Montage-Typ : SMD Abmessungen : 7 x 7 x 1.4mm Länge : 7mm Betriebstemperatur max. : +105 °C Betriebstemperatur min. : -40 °C, Analog Devices
RS Components HK
Audio Processor 48-Pin LQFP
RS Components FR
Audio Processor 48-Pin LQFP
RS Components ES
Audio Processor 48-Pin LQFP
RS Components NL
Audio Processor 48-Pin LQFP
RS Components NO
Audio Processor 48-Pin LQFP
RS Components US
Audio Processor 48-Pin LQFP
RS Components SG
Audio Processor 48-Pin LQFP
RS Components TW
Audio Processor 48-Pin LQFP