Problem is seen Master Device is accessing other slave and not AD1937
Slave ACK to Master Stop is delayed by 2.5ms and AD1937 PLL is unlocked .
Master Device can read the AD1937 registers except for PLL Lock indicator bit which is not locked .
Hi Sir Dave,
thanks for the reply for AD1937. My AD1937 was just used for analog input/output signals. My concerns was the ADSP21489 if it can handle other all the IC's I2S whish include the Ad1937 in I2S protocol(to process the analog input signals…
I am using AD1937, I need to 8kHz sampling frequency application with AD1937 but first page in the manual said that it supports 8kHz to 192kHz.
But I can't find how to set register to use for 8kHz.
How can I set AD1937 to support 8kHz?
Your drawing of the AD1937 in Single-Line Daisy-Chain TDM mode for both ADC and DAC paths is correct. I would make one small addition: the AD1937(First) has ASDATA2 and DSDATA2 pins. The ASDATA2 pin of AD1937(First) should be connected to…
Hello, AD Engineers.
Can AD1937 recorgnize 2.5V as high?
I saw that min Vih in manual page 6 is 2.0V. Does it mean that I can use 2.5V I2S signals with AD1937?
Hi We are planning to use AD1937 in one of our designs .
Our requirement is 4 mono audio input and 4 mono audio output.
Can we use AD1937 for this kind of application.
The ADAU1446 can only self-boot in I2C mode and can only be an I2C slave with the exception of when it self-boots. The AD1937 does not need an external EEPROM to work in standalone mode but the available modes are limited. The ADAU1446 cannot…
Hello, Analog Device.
I am debugging some developing board, it has AD1937 and I just apply power and DAC out has some high frequency noise.
I didn't program ad1937 at all but DAC out has some noise(attachment: test.m4a), is it possible?
I am attaching…
>I have a problem when used AD1937 on my board.We can saw a clear distortion when we play the sine wav file, we also use the Cool Edit Pro tools to review the soure file, it's a good sine wavform, not found any distortion from the begining to…
Is there any reference design of the Analog Devices DSP chip (AD21489) and Analog Devices CODEC (AD1937)?
By the way, I would like to confirm that the AD1937 can be configured so that the output is I2S. If can, how to set the serial data output…