产地日本
功能ADC DAC DSP CODEC
品质HIFI音质
运用高端音响
品类音频芯片
AKM Corporate Profile
AKM Audio Market Voice
Premium Audio DAC
Smartphone HiFi DAC
BT Headphone
Wireless Speaker
New Solutions for AI Speaker
DSP+CODEC AK7755EN
■ Block Diagram ■ Key Features
■ Applications and Target Customers
■ Benefits
■ Product Status (CY)
ES Available
MP Available
Wireless Speaker / Docking Station
Hands Free System / Door phone
□ Programmable DSP 2560step @48kHz processing speed
□ 3ch ADC S/N : 102dB
□ 2ch DAC S/N : 106dB
□ Differential/Single-ended Inputs MIC-Amp
□ Digital MIC Input
□ Single-ended Lineout
□ Analog DRC (Dynamic Range Control)
□ Internal PLL, LDO
□ EEPROM Boot Function (4MAT Selectable)
□ SPI(7MHz), I²C-bus(400kHz Fast-Mode)
□ 36pin QFN (6mm x 6mm)
□ Configurable DSP for Audio/HF Systems
□ Stand-alone Operation from EEPROM
□ AKM’s Unique Full Duplex Hands-free Algorithm
(Wideband Speech)
□ Power management mode to prolong the battery life
AK4962ECB
AK7604VQ
AK7707VQ
AK4191EQ
AK4430ET
AK4331ECB
AK4332ECB
AK4377AECB
AK4377ECB
AK4432VT
AK4436VN
AK4438VN
AK4452VN
AK4454VN
AK4456VN
AK4458VN
AK4462VN
AK4468VN
AK4482VT
AK4490EN
AK4490EQ
AK4490REQ
AK4492ECB
AK4493EQ
AK4493SEQ
AK4495EQ
AK4495SEQ
AK4497EQ
AK4498EQ
AK4499EQ
Vendor AKM CSR Airoha
Part # AK4331 CSR8675 CSR8645 AB1526
Resolution 32-bit 16-bit 16-bit Unknown
Max. fs 192kHz 192kHz 96kHz 96kHz
THD+N -100dB -94dB -92dB -65dB
SNR 109dB 96dB 96dB 94dB
Max. Output Level 894mVRMS
(Single-end)
778mVRMS
(Differential)
778mVRMS
(Differential)
601mVRMS
(Differential)
Current Consumption
(DAC only)
2.4mA 2.6mA
(Estimated)
2.6mA
(Estimated) Unknown
Part Number
AK4940VN
Number of Channels (AD)
1
Number of Channels (DA)
1
Bits [bit]
24
S/N (AD) [dB]
90
S/N (DA) [dB]
90
THD+N (AD) [dB]
-80
THD+N (DA) [dB]
-80
Power Supply Voltage (MIN.) [V]
3
Power Supply Voltage (TYP.) [V]
Power Supply Voltage (MAX.) [V]
3.6
Microphone Amplifier
Yes
Speaker Amplifier
Other
Analog Direct Path, Automotive grade
Operating Temperature [℃]
-40 to 105
Device Package
HWQFN
Number of Pins
24
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