Stereo CODEC. AK4645A Datasheet

AK4645A CODEC. Datasheet pdf. Equivalent

AK4645A Datasheet
Recommendation AK4645A Datasheet
Part AK4645A
Description Stereo CODEC
Feature AK4645A; [AK4645A] AK4645A Stereo CODEC with MIC/HP-AMP GENERAL DESCRIPTION The AK4645A is a stereo CODEC wit.
Manufacture AKM
Datasheet
Download AK4645A Datasheet




AKM AK4645A
[AK4645A]
AK4645A
Stereo CODEC with MIC/HP-AMP
GENERAL DESCRIPTION
The AK4645A is a stereo CODEC with a built-in Microphone-Amplifier and Headphone-Amplifier. The
AK4645A features analog mixing circuit that allows easy interfacing in mobile phone and portable A/V
player designs. The AK4645A is available in a 32pin QFN (4mm x 4mm), utilizing less board space than
competitive offerings.
FEATURES
1. Recording Function
4 Stereo Input Selector
Stereo Mic Input (Full-differential or Single-ended)
Stereo Line Input
MIC Amplifier (+32dB/+26dB/+20dB or 0dB)
Digital ALC (Automatic Level Control)
(+36dB ∼ −54dB, 0.375dB Step, Mute)
ADC Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB)
S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)
Wind-noise Reduction Filter
Stereo Separation Emphasis
Programmable EQ
2. Playback Function
Digital De-emphasis Filter (tc=50/15(s, fs=32kHz, 44.1kHz, 48kHz)
Bass Boost
Soft Mute
Digital Volume (+12dB ( (115.0dB, 0.5dB Step, Mute)
Digital ALC (Automatic Level Control)
(+36dB ∼ −54dB, 0.375dB Step, Mute)
Stereo Separation Emphasis
Programmable EQ
Stereo Line Output
- Performance: S/(N+D): 88dB, S/N: 92dB
Stereo Headphone-Amp
- S/(N+D): 65dB@7.5mW, S/N: 90dB
- Output Power: 70mW@16Ω (HVDD=5V), 62mW@16Ω (HVDD=3.3V)
- Pop Noise Free at Power ON/OFF
Analog Mixing: 4 Stereo Input
3. Power Management
4. Master Clock:
External Clock Mode
Frequencies: 256fs, 384fs, 512fs or 1024fs (MCKI pin)
5. Sampling Rate:
EXT Master/Slave Mode:
7.35kHz 48kHz (256fs), 7.35kHz 48kHz (384fs),
7.35kHz 26kHz (512fs), 7.35kHz 13kHz (1024fs)
6. μP 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: 16bit MSB justified, I2S, DSP Mode
DAC: 16bit MSB justified, 16bit LSB justified, 16-24bit I2S, DSP Mode
MS0986-E-00
-1-
2008/07



AKM AK4645A
9. Ta = 30 85°C
10. Power Supply:
AVDD, DVDD: 2.6 3.5V (typ. 3.3V)
HVDD: 2.6 5.25V (typ. 3.3V/5.0V)
TVDD (Digital I/O): 1.6 3.5V (typ. 3.3V)
11. Package: 32pin QFN (4mm x 4mm, 0.4mm pitch)
12. Register Compatible with AK4644
[AK4645A]
Block Diagram
Internal
MIC
External
MIC
MPWR
LIN1/IN1
RIN1/IN1+
LIN2/IN2+
RIN2/IN2
AVDD
PMMP
MIC Power
Supply
PMADL
or PMMICL
MIC-Amp
PMADR
or PMMICR
AVSS VCOM
DVDD
TVDD
Control
Register
PMADL or PMADR
A/D
HPF
Wind-Noise Stereo
Reduction Separation
ALC
Line In
Line In
Stereo Line Out
Headphone
MIN/LIN3
* RIN3
LIN4/IN4+
RIN4/IN4
PMAINR4
PMAINL4
LOUT/LOP
PMLO
ROUT/LON
PMHPL
HPL
HPR
MUTET
PMHPR
PMAINR2
PMAINL2
PMAINR3
PMAINL3
PMMIN
PMDAC
D/A
DATT Bass
SMUTE Boost
ALC
Stereo
Separation
HPF
Audio
I/F
I2C
CSN/CAD0
CCLK/SCL
CDTI/SDA
PDN
BICK
LRCK
SDTO
SDTI
MCKI
HVDD
HVSS
Figure 1. Block Diagram
MS0986-E-00
-2-
2008/07



AKM AK4645A
Ordering Guide
AK4645AEZ
AKD4645A
Pin Layout
30 +85°C
32pin QFN (0.4mm pitch)
Evaluation board for AK4645A
[AK4645A]
LIN4 / IN4+ 25
ROUT / LON 26
LOUT / LOP 27
MIN / LIN3 28
RIN2 / IN229
LIN2 / IN2+ 30
LIN1 / IN131
RIN1 / IN1+ 32
AK4645A
Top View
16 TVDD
15 DVDD
14 BICK
13 LRCK
12 SDTO
11 SDTI
10 CDTI / SDA
9 CCLK / SCL
Compatibility with AK4643/44
1. Function
Function
Digital I/O of μP I/F
Analog Mixing for Playback
Input Selector for Recording
HP-Amp Hi-Z Setting for wired OR
PLL
Speaker-Amp
Receiver-Amp
Package
AK4643
2.6 to 3.6V
3 Stereo
3 Stereo
No
11.2896/12/12.288/
13.5/24/27MHz
Yes
Yes
32QFN (5mm x 5mm,
0.5mm pitch)
AK4644
Å
Å
Å
Å
Å
No
Å
Å
MS0986-E-00
-3-
AK4645A
1.6 to 3.5V
4 Stereo
4 Stereo
Yes
No
Å
No
32QFN (4mm x 4mm,
0.4mm pitch)
2008/07







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