Free DSP. AK7752 Datasheet

AK7752 DSP. Datasheet pdf. Equivalent


AKM AK7752
[AK7752]
AK7752
Audio/Hands Free DSP with Stereo CODEC
GENERAL DESCRIPTION
The AK7752 is a digital signal processor with an integrated stereo CODEC. The digital signal processor
(DSP) can execute a high-quality hands-free algorithm, using only internal memory. Fine tuning is
available for improving voice quality of the hands-free function in actual user environments. The
AK7752 includes delay RAM, an integrated PLL, four digital audio input and eight digital audio output
ports. The AK7752 can perform pre and post processing for speech recognition, volume control
adjustment and parametric equalization, executed by programs downloaded via the microprocessor
interface.
FEATURES
[ADC Block]
„ Sampling rate: 8kHz ~ 48kHz
„ 24-bit stereo
„ S/(N+D): 86dB
„ DR, S/N: 89dB (fs=8 kHz), 91dB (fs=48kHz)
„ Integrated DC offset canceling High Pass Filter
[DAC Block]
„ Sampling rate: 8kHz ~ 48kHz
„ 18-bit stereo
„ S/(N+D): 90dB (fs =8kHz), 88dB (fs=48kHz)
„ DR, S/N: 95dB (fs =8kHz), 95dB (fs=48kHz)
[Input/Output Digital Interface]
„ 4-channel Serial Data Input
„ 8-channel Serial Output
[General]
„ Integrated PLL
„ EEPROM (AK6514C) Interface
„ Microprocessor Interface: I²C BUS or AKM original mode
„ Power Supply: Single 3.3V ±0.3V
„ Operating Temperature Range: -40°C~85°C
„ 64pin LQFP
MS0578-E-01-PB
-1-
2007/09


AK7752 Datasheet
Recommendation AK7752 Datasheet
Part AK7752
Description Audio/Hands Free DSP
Feature AK7752; [AK7752] AK7752 Audio/Hands Free DSP with Stereo CODEC GENERAL DESCRIPTION The AK7752 is a digital.
Manufacture AKM
Datasheet
Download AK7752 Datasheet




AKM AK7752
pull down
Hi-z
Open drain
ctrl reg sw
DLINE_IN
DEXT_IN / JX3
JX2
JX1
JX0
BLOCK DIAGRAM
[AK7752]
ALINE_IN
ANE_IN VREFL VCOM VREFH ANE_OUT ALINE_OUT
ADC
SDATA_AD
REF
Lch:ALINE_IN / Rch:ANE_IN
SDINA
SDIN1
SDIN2
HF(DSP)
SDOUTA
GPO0
SDOUT3
SDOUT2
GPO1
SDOUT1
JX3_E
JX2_E
JX3
JX2
WDT
CRC
JX1_E
JX1
JX0_E
JX0
2 AVDD
DAC
SDATA_DA
2 AVSS
2 BVSS
Lch:ANE_OUT 5 DVDD
Rch:ALINE_OUT
SELA2A
5 DVSS
SWG0
SWG1 OUTEX2_N
OUTEX1_N
OUTLE_N
DEXT3_OUT
DEXT2_OUT
DEXT1_OUT
DLINE_OUT
CRC_E
STO
MICIF
SO
I2CSEL
RQ_N/CAD1
SI/CAD0
SCL/SCLK
SDA
SO
RDY
EESEL
TESTI1
TESTI2
INIT_RESET_N
S_RESET_N
CK_RESET_N
CKM[3:0] 4
CKM[3:0]
BE
LE
CONT
RSTO_N
EESEL
EEST
EEPIF
(Master="L", Slave="H")
SMODE
CLK
SEL_EEST
CLKO1E
EEST/RSTO_N
EESI
EECK
EECS_N
EESO
XTI
XTO
CLKO1
TESTO1
SYNC_O BITCLK_O SYNC_I BITCLK_I
LFLT
Figure 1. Block Diagram
* Figure 1 shows a simplified diagram of the AK7752, which isn’t the perfect same as the actual circuit diagram.
MS0578-E-01-PB
-2-
2007/09



AKM AK7752
Ordering Guide
AK7752VQ
AKD7752
Pin Layout
-40 +85°C
64pin LQFP
Evaluation Board for AK7752
[AK7752]
TESTI2
CKM[1]
CKM[0]
TESTI1
LFLT
AVSS
AVDD
ANE_IN
ALINE_IN
AVDD
VREFH
VCOM
VREFL
AVSS
ALINE_OUT
ANE_OUT
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
64pin LQFP
(TOP VIEW)
32 CLKO1
31 CKM[2]
30 CKM[3]
29 S_RESET_N
28 CK_RESET_N
27 INIT_RESET_N
26 SYNC_I
25 BITCLK_I
24 DVSS
23 DVDD
22 JX0
21 JX1
20 JX2
19 DEXT_IN/JX3
18 DLINE_IN
17 STO
Input
Output
I/O
Power
Note) XXXX is internal pull-down pin. XXXX is the pin name.
MS0578-E-01-PB
-3-
2007/09







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)