AK5373 AKM [Asahi Kasei Microsystems], AK5373 Datasheet - Page 20
AK5373
Manufacturer Part Number
AK5373
Description
24-bit Stereo ADC with USB Interface
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK5373.pdf
(53 pages)
- Current page: 20 of 53
- Download datasheet (568Kb)
■
USB specifies that the current at suspend mode must not exceed 500μA. When the USB host is in suspend mode, the
SUSN pin also becomes to “L” in order to notify this mode to the external components like DSP’s to observe USB
specification.
■
The AK5373 supports synchronous type synchronization which is synchronous to SOF (start of frame) packets which are
issued per 1ms.
■
USB audio class has very flexible, but complicated format. In order to keep both of the flexibility and simplicity to use,
the AK5373 utilizes the precompiled control information in EEP-ROM instead of direct USB audio class decoding. Data
in EEP-ROM is divided into two blocks; header information block and USB descriptor block. Header block size is fixed
while USB descriptor block size is variable. Header information includes various control information such as audio
format, the microphone’s gain, power management information, and etc. When the device is powered up, at first the
AK5373 reads the header block in EEP-ROM, and maps these values into the internal registers. Note that 8k bits or larger
SPI type EEP-ROM is available.
The AK5373 does not store all of the descriptors into internal memory at the boot time. Instead, the AK5373 reads the
descriptor from EEP-ROM and transmit it when it receives the “Get Descriptor” Request command. The AK5373
transmits NAK until it is ready to send data.
MS1202-E-00
Power Management Control
Synchronization
Descriptor’s Customization
1) Power Management Information
2) Microphone Gain
3) External Digital Audio Interface Information
4) Mute Control Information
5) Descriptor related information
Header Information includes
a) PCM format(stereo/mono, resolution) and the related alternate setting number
b) Endpoint number
c) Initial/Minimum/Maximum Volume
- 20 -
[
AK5373]
2010/06
Related parts for AK5373
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
AK4565VFLOW POWER 20BIT CODEC WITH BUILT IN ALC
Manufacturer:
AKM Asahi Kasei Microsystems
Datasheet:
Part Number:
Description:
AK4628VQHIGH PERFORMANCE MULTI CHANNEL AUDIO CODEC
Manufacturer:
AKM Asahi Kasei Microsystems
Datasheet:
Part Number:
Description:
AK8812NTSC/PAL Digital Video Encoder
Manufacturer:
AKM Asahi Kasei Microsystems
Datasheet:
Part Number:
Description:
LOW POWER 16BIT ADC
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
24Bit 96kHz ?? ADC
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
96kHz 24Bit ADC with Single - ended Input
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
Super High Performance 192kHz 24-Bit ADC
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
125m / 156m Laser Diode Driver Apc - Asahi Kasei Microsystems
Manufacturer:
AKM Semiconductor, Inc.
Datasheet:
Part Number:
Description:
7 Channel E1 Transceiver - Asahi Kasei Microsystems
Manufacturer:
AKM Semiconductor, Inc.
Datasheet:
Part Number:
Description:
Step-up/step-down 60ma Regulated Charge Pump - Asahi Kasei Microsystems
Manufacturer:
AKM Semiconductor, Inc.
Datasheet:
Part Number:
Description:
16-Bit ?? Mono ADC with PLL & MIC-AMP
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
PLL & MIC-AMP 16-Bit Stereo ADC
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
4-Channel ADC with PLL & MIC-AMP
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
192kHz 24-Bit Stereo ?? DAC with 2Vrms Output
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet:
Part Number:
Description:
Low Power 20bit ?? ADC with PGA
Manufacturer:
AKM [Asahi Kasei Microsystems]
Datasheet: