Stereo CODEC. AK4953A Datasheet

AK4953A CODEC. Datasheet pdf. Equivalent

AK4953A Datasheet
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Part AK4953A
Description 24bit Stereo CODEC
Feature AK4953A; [AK4953A] AK4953A 24bit Stereo CODEC with MIC/HP/SPK-AMP GENERAL DESCRIPTION The AK4953A is a low po.
Manufacture AKM
Datasheet
Download AK4953A Datasheet




AKM AK4953A
[AK4953A]
AK4953A
24bit Stereo CODEC with MIC/HP/SPK-AMP
GENERAL DESCRIPTION
The AK4953A is a low power consumption 24bit stereo CODEC with a microphone, headphone and
speaker amplifiers. The input circuits include a microphone amplifier and an ALC (Automatic Level
Control) circuit, and the output circuits include a cap-less headphone amplifier and a speaker amplifier. It
is suitable for portable application with recording/playback function. The integrated charge pump circuit
generates a negative voltage and removes the output AC coupling capacitors. The speaker amplifier has
a wide operating voltage range, which is from 0.9V to 5.5V, enabling a direct drive to batteries. The
AK4953A is available in a small 36-pin QFN (5x5mm 0.4mm pitch), utilizing less board space than
competitive offerings.
FEATURES
1. Recording Function
Stereo Single-ended input with three Selectors
MIC Amplifier (+29dB/+26dB/+23dB/+20dB/+16dB/+12dB/0dB)
Digital ALC (Automatic Level Control)
(Setting Range: +36dB  54dB, 0.375dB Step)
ADC Performance: S/(N+D): 82dB, DR, S/N: 88dB (MIC-Amp=+20dB)
S/(N+D): 85dB, DR, S/N: 96dB (MIC-Amp=0dB)
Wind-noise Reduction Filter
5 Band Notch Filter
Digital MIC Interface
2. Playback Function
Digital De-emphasis Filter (tc=50/15s, fs=32kHz, 44.1kHz, 48kHz)
Digital ALC (Automatic Level Control)
(Setting Range: +36dB ~ 54dB, 0.375dB Step)
Digital Volume Control (+12dB ~ 115dB, 0.5dB Step, Mute)
Capacitor-less Stereo Headphone Amplifier
- HP-Amp Performance: S/(N+D): 80dB@24mW, S/N: 96dB
- Output Power: 24mW@16
- Pop Noise Free at Power-ON/OFF
Mono Speaker-Amplifier
- SPK-Amp Performance: S/(N+D): 70dB@250mW, S/N: 95dB
- BTL Output
- Output Power: 400mW@8(SVDD=3.3V)
100mW@8(SVDD=1.5V)
Beep Generator
3. Power Management
4. Master Clock:
(1) PLL Mode
Frequencies: 11.2896MHz, 12MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
32fs or 64fs (BICK pin)
(2) External Clock Mode
Frequencies: 256fs, 384fs, 512fs or 1024fs (MCKI pin)
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AKM AK4953A
[AK4953A]
5. Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
PLL Slave Mode (BICK pin): 7.35kHz 96kHz
PLL Slave Mode (MCKI pin): 7.35kHz, 8kHz, 11.025kHz, 12kHz, 14.7kHz, 16kHz,
22.05kHz, 24kHz, 29.4kHz, 32kHz, 44.1kHz, 48kHz,
64kHz, 88.2kHz, 96kHz
PLL Master Mode: 7.35kHz, 8kHz, 11.025kHz, 12kHz, 14.7kHz, 16kHz, 22.05kHz,
24kHz, 29.4kHz, 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz,
96kHz
EXT Master/Slave Mode: 7.35kHz ~ 96kHz (256fs), 7.35kHz ~ 48kHz (384fs),
7.35kHz ~ 48kHz (512fs), 7.35kHz ~ 12kHz (1024fs)
6. P I/F: 3-wire Serial, I2C Bus (Ver 1.0, 400kHz Fast-Mode)
7. Master/Slave mode
8. Audio Interface Format: MSB First, 2’s complement
ADC: 24bit MSB justified, 16/24bit I2S
DAC: 24bit MSB justified, 16bit LSB justified, 24bit LSB justified, 16/24bit I2S
9. Ta = 30 85C (SPK-Amp = OFF)
Ta = 30 70C (SPK-Amp = ON)
10. Power Supply:
Analog Power Supply (AVDD): 2.85 ~ 3.5V
Digital Power Supply (DVDD): 1.6 ~ 2.0V
Digital I/O Power Supply (TVDD): DVDD ~ 3.5V
Speaker Power Supply (SVDD): 0.9 ~ 5.5V
11. Package: 36-pin QFN (5 x 5mm, 0.4mm pitch)
Block Diagram
AVDD VSS1 REGFIL VCOM
DVDD TVDD VSS2
MPWR2
MPWR1
Internal
MIC
External
MIC
LIN1/DDAT
RIN1/DMCLK
LIN2
RIN2
Line In
LIN3
RIN3
Speaker
SVDD
VSS4
SPP
SPN
Cap-less
Headphone
HPL
HPR
CP
CN
PMMP
MIC Power
Supply
PMADL
PMVCM
LDO
+2.5V
Analog Block
Charge pump
Control
Register
PMADR
MIC-Amp
PMSPK
Class-AB
SPK-AMP
PMHPL
PMHPR
PMHPL or PMHPR
Charge
Pump
PMADL or PMADR
ADC HPF1
PMBP
Beep
Generator
PMPFIL
HPF2
LPF
4-band EQ
ALC
1-band EQ
SDTI
Audio
I/F
SDTO
PMDAC
DAC
DVL/R DEM
SMUTE
PMPLL
PLL
AVDD
I2C
CSN/SDA
CCLK/SCL
CDTIO/CAD0
PDN
BICK
LRCK
SDTI
SDTO
MCKO
MCKI
PVEE VSS3
Figure 1. Block Diagram
MS1252-E-05
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AKM AK4953A
Ordering Guide
AK4953AEN
AKD4953A
Pin Layout
30 +85C
36-pin QFN (0.4mm pitch)
Evaluation board for AK4953A
[AK4953A]
AVDD 28
VSS1 29
REGFIL 30
VCOM 31
LIN3 32
RIN3 33
LIN2 34
RIN2 35
MPWR2 36
AK4953A
Top View
18 VSS4
17 SVDD
16 I2C
15 MCKO
14 MCKI
13 VSS2
12 TVDD
11 SDTO
10 BICK
MS1252-E-05
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