AK7770EQ

AK7770EQ Datasheet

[AK7770]

Part	Datasheet
AK7770EQ	AK7770EQ (pdf)

PDF Datasheet Preview
[AK7770] AK7770EQ Audio DSP with Multi-Channel Audio CODEC GENERAL DESCRIPTION The AK7770 is a digital signal processor with an integrated 4-channel audio ADC and a 6-channel audio DAC, as well as an S/PDIF transmitter. It utilizes an enhanced dual bit architecture that results in wide dynamic range for the ADC, and the advanced multi-bit architecture of the DAC enables wide dynamic range and low out-of-band noise. Two sample-rate converters are integrated, allowing for operation at 48kHz sampling rate with input rates of 32kHz, 44.1kHz, or 48kHz. Volume control, compression, EQ and sound processing are performed by the DSP. In addition, delay adjustment up to 70ms is possible for four output channels through the integrated delay RAM. The AK7770 is packaged in a space-saving 80-pin LQFP package. • DSP - Data Width 24-bit Data RAM F20.4 floating Point - Processing Speed ns 1536step/fs = 48kHz - Multiplication 20 x 16 36-bit Double precision arithmetic available - Program RAM 1536 x 36-bit - Coefficient RAM 1536 x 16-bit - Offset RAM 64 x 14-bit - DRAM 14kword 1word = F16.4 floating point - Sample Rate fs = 48kHz - Master / Slave operation • 4:2 Selector with Input Pre-amp • 4ch 24-bit ADC - 64-times oversampling - Sample Rate 48kHz - S/ N+D 84dB fs = 48kHz - DR, S/N 96dB fs = 48kHz - Digital HPF for offset DC cancellation - Channel independent Digital Volume control +24/-103dB, 0.5dB step - Soft Mute • 6ch 24-bit DAC - 128-times oversampling - Sample Rate 48kHz - S/ N+D 88dB fs = 48kHz - DR, S/N 100dB - Channel independent Digital Volume control +12/-115dB, 0.5dBstep - Soft Mute - Digital de-emphasis MS0699-E-01-PB -1- 2008/06 • Stereo Headphone Amplifier with Volume Control - DAC3 direct connection - S/ N+D 73dB fs=48kHz - S/N 86dB fs=48kHz - Analog volume control +0/-50dB,1.0/2.0/4.0dB per step - Output power - No click noise at power ON/OFF • Headphone Detection Circuit denounce circuit • High Tolerance to Clock Jitter • Sample Rate Converter - Dual 2ch SRC - Input sample rate 32kHz~48kHz - Output sample rate 48kHz fixed • DIT - S/PDIF, IEC958, AES/EBU, EIAJ CP1201 - Output Selector DIT or Through - 24 bit interface format - 16 bit interface format • CMOS Level Digital I/F for 3.3V • Master Clock Input 256fs fs=48kHz • Master Clock Output 128fs, 192fs, 256fs, 384fs • Three Digital Audio Inputs • µP I/F • Power Supply +3.3V ±0.3V, +1.8V ±0.1V • Temperature Range -10°C~70°C • Package 80pin LQFP 0.5mm pitch [AK7770] MS0699-E-01-PB -2- 2008/06 [AK7770] • Block Diagram FROL2,FROR2 FRIL2,FRIR2 VCOM VREF AOUTL1,AOUTR1 AOUTL2,AOUTR2 DAC1 SDINDA1 DAC2 SDINDA2 DAC3 SDINDA3 HMUTEN 2 HPL,HPR HVCOM HDT AINL1,AINR1 AINL2,AINR2 AINL3,AINR3 AINL4,AINR4 ASEL2[1:0] ASEL1[1:0] • Ordering Information AK7770EQ AKD7770 • Pin Assignment -10 ~ +70°C Evaluation board 80pin LQFP 0.5mm pitch [AK7770] HPEN DVDD VSS3 DVDD18 SDIN3 BITCLK3 CLK3 LRCLK3 CKM[1] TESTI3 HVDD HVCOM VSS2 AOUTR2 AOUTL2 AOUTR1 AOUTL1 VSS1 AVDD FRIR2 FROR2 FROL2 FRIL2 AINR1 AINL1 AINR2 AINL2 AINR3 AINL3 AINR4 AINL4 VSS1 VCOM AVDD FROR1

PDF Datasheet Preview

[AK7770]

AK7770EQ

Audio DSP with Multi-Channel Audio CODEC

GENERAL DESCRIPTION The AK7770 is a digital signal processor with an integrated 4-channel audio ADC and a 6-channel audio DAC, as well as an S/PDIF transmitter. It utilizes an enhanced dual bit architecture that results in wide dynamic range for the ADC, and the advanced multi-bit architecture of the DAC enables wide dynamic range and low out-of-band noise. Two sample-rate converters are integrated, allowing for operation at 48kHz sampling rate with input rates of 32kHz, 44.1kHz, or 48kHz. Volume control, compression, EQ and sound processing are performed by the DSP. In addition, delay adjustment up to 70ms is possible for four output channels through the integrated delay RAM. The AK7770 is packaged in a space-saving 80-pin LQFP package.
• DSP
- Data Width 24-bit Data RAM F20.4 floating Point - Processing Speed ns 1536step/fs = 48kHz - Multiplication 20 x 16 36-bit Double precision arithmetic available - Program RAM 1536 x 36-bit - Coefficient RAM 1536 x 16-bit - Offset RAM 64 x 14-bit - DRAM 14kword 1word = F16.4 floating point - Sample Rate fs = 48kHz - Master / Slave operation
• 4:2 Selector with Input Pre-amp
• 4ch 24-bit ADC
- 64-times oversampling - Sample Rate 48kHz - S/ N+D 84dB fs = 48kHz - DR, S/N 96dB fs = 48kHz - Digital HPF for offset DC cancellation - Channel independent Digital Volume control +24/-103dB, 0.5dB step - Soft Mute
• 6ch 24-bit DAC
- 128-times oversampling - Sample Rate 48kHz - S/ N+D 88dB fs = 48kHz - DR, S/N 100dB - Channel independent Digital Volume control +12/-115dB, 0.5dBstep - Soft Mute - Digital de-emphasis

MS0699-E-01-PB -1-
2008/06
• Stereo Headphone Amplifier with Volume Control
- DAC3 direct connection - S/ N+D 73dB fs=48kHz - S/N 86dB fs=48kHz - Analog volume control +0/-50dB,1.0/2.0/4.0dB per step - Output power - No click noise at power ON/OFF
• Headphone Detection Circuit denounce circuit
• High Tolerance to Clock Jitter
• Sample Rate Converter
- Dual 2ch SRC - Input sample rate 32kHz~48kHz - Output sample rate 48kHz fixed
• DIT
- S/PDIF, IEC958, AES/EBU, EIAJ CP1201 - Output Selector DIT or Through - 24 bit interface format - 16 bit interface format
• CMOS Level Digital I/F for 3.3V
• Master Clock Input 256fs fs=48kHz
• Master Clock Output 128fs, 192fs, 256fs, 384fs
• Three Digital Audio Inputs
• µP I/F
• Power Supply +3.3V ±0.3V, +1.8V ±0.1V
• Temperature Range -10°C~70°C
• Package 80pin LQFP 0.5mm pitch
[AK7770]

MS0699-E-01-PB -2-
2008/06
[AK7770]
• Block Diagram

FROL2,FROR2

FRIL2,FRIR2

VCOM

VREF

AOUTL1,AOUTR1 AOUTL2,AOUTR2

DAC1

SDINDA1

DAC2

SDINDA2

DAC3

SDINDA3

HMUTEN
2 HPL,HPR

HVCOM HDT

AINL1,AINR1 AINL2,AINR2 AINL3,AINR3 AINL4,AINR4

ASEL2[1:0]

ASEL1[1:0]
• Ordering Information

AK7770EQ AKD7770
• Pin Assignment
-10 ~ +70°C Evaluation board
80pin LQFP 0.5mm pitch
[AK7770]

HPEN

DVDD

VSS3

DVDD18

SDIN3

BITCLK3

CLK3

LRCLK3

CKM[1]

TESTI3

HVDD

HVCOM

VSS2

AOUTR2

AOUTL2

AOUTR1

AOUTL1

VSS1

AVDD

FRIR2

FROR2

FROL2

FRIL2

AINR1

AINL1

AINR2

AINL2

AINR3

AINL3

AINR4

AINL4

VSS1

VCOM

AVDD

FROR1

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AK7770EQ Datasheet file may be downloaded here without warranties.

Datasheet ID: AK7770EQ 515920