Stereo CODEC. AK4645 Datasheet

AK4645 CODEC. Datasheet pdf. Equivalent


AKM AK4645
ASAHI KASEI
[AK4645]
AK4645
Stereo CODEC with MIC/HP-AMP
GENERAL DESCRIPTION
The AK4645 is a stereo CODEC with a built-in Microphone-Amplifier and Headphone-Amplifier. The
AK4645 features analog mixing circuits and PLL that allows easy interfacing in mobile phone and portable
A/V player designs. The AK4645 is available in a 32pin QFN, 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=50/15µs, 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): 70dB@7.5mW, S/N: 90dB
- Output Power: 70mW@16(HVDD=5V), 62mW@16(HVDD=3.3V)
- Pop Noise Free at Power ON/OFF
Analog Mixing: 4 Stereo Input
3. Power Management
4. Master Clock:
(1) PLL Mode
Frequencies:
- MCKI pin: 11.2896MHz, 12MHz, 12.288MHz, 13MHz, 13.5MHz,
19.2MHz, 24MHz, 26MHz, 27MHz
- LRCK pin: 1fs
- BICK pin: 32fs or 64fs
(2) External Clock Mode
Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
5. Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
6. Sampling Rate:
PLL Slave Mode (LRCK pin): 7.35kHz 48kHz
PLL Slave Mode (BICK pin): 7.35kHz 48kHz
PLL Slave Mode (MCKI pin):
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
MS0543-E-00
-1-
2006/09


AK4645 Datasheet
Recommendation AK4645 Datasheet
Part AK4645
Description Stereo CODEC
Feature AK4645; ASAHI KASEI [AK4645] AK4645 Stereo CODEC with MIC/HP-AMP GENERAL DESCRIPTION The AK4645 is a ster.
Manufacture AKM
Datasheet
Download AK4645 Datasheet




AKM AK4645
ASAHI KASEI
[AK4645]
PLL Master Mode:
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
EXT Master/Slave Mode:
7.35kHz 48kHz (256fs), 7.35kHz 26kHz (512fs), 7.35kHz 13kHz (1024fs)
7. µP I/F: 3-wire serial, I2C Bus (Ver 1.0, 400kHz High Speed Mode)
8. Master/Slave mode
9. 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
10. Ta = 30 85°C
11. Power Supply:
AVDD, DVDD: 2.6 3.6V (typ. 3.3V)
HVDD: 2.6 5.25V (typ. 3.3V/5.0V)
TVDD (Digital I/O): 1.6 3.6V (typ. 3.3V)
12. Package: 32pin QFN (5mm x 5mm, 0.5mm pitch)
13. Register Compatible with AK4644
„ Block Diagram
Internal
MIC
External
MIC
MPWR
LIN1
RIN1
LIN2
RIN2
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
LIN3/MIN
RIN3/VCOC
LIN4
RIN4
PMAINR4
PMAINL4
LOUT
PMLO
ROUT
PMHPL
HPL
HPR
MUTET
PMHPR
PMAINR2
PMAINL2
PMAINR3
Audio
I/F
PMAINL3
PMMIN
PMDAC
D/A
DATT Bass
SMUTE Boost
ALC
Stereo
Separation
HPF
PMPLL
PLL
I2C
CSN
CCLK
CDTI
PDN
BICK
LRCK
SDTO
SDTI
MCKO
MCKI
VCOC
HVDD
HVSS
Figure 1. Block Diagram
MS0543-E-00
-2-
2006/09



AKM AK4645
ASAHI KASEI
„ Ordering Guide
AK4645EN
AKD4645
„ Pin Layout
30 +85°C
32pin QFN (0.5mm pitch)
Evaluation board for AK4645
[AK4645]
LIN4 / IN4+ 25
ROUT / LON 26
LOUT / LOP 27
MIN / LIN3 28
RIN2 / IN229
LIN2 / IN2+ 30
LIN1 / IN131
RIN1 / IN1+ 32
AK4645EN
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
AK4643
2.6 to 3.6V
3 Stereo
3 Stereo
No
11.2896/12/12.288/
13.5/24/27MHz
Yes
Yes
AK4644
Å
Å
Å
Å
Å
No
Å
MS0543-E-00
-3-
AK4645
1.6 to 3.6V
4 Stereo
4 Stereo
Yes
11.2896/12/12.288/13/
13.5/19.2/24/26/27MHz
Å
No
2006/09







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