AK7756EN datasheet, PDF - EEWORLD Datasheet

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AK7756EN: DescriptionDSP with Mono CODEC Mic/Lineout Amp; CategoryOther integrated circuit (IC) Consumption circuit; File Size437KB，27 Pages; ManufacturerAKM [Asahi Kasei Microsystems]

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AK7756EN Overview

DSP with Mono CODEC Mic/Lineout Amp

AK7756EN Parametric

Parameter Name	Attribute value
Maker	AKM [Asahi Kasei Microsystems]
Parts packaging code	QFN
package instruction	HVQCCN,
Contacts	28
Reach Compliance Code	unknow
Other features	ALSO REQUIRES 1.8V DIGITAL SUPPLY
Commercial integrated circuit types	CONSUMER CIRCUIT
JESD-30 code	S-PQCC-N28
length	5 mm
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-20 °C
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Package shape	SQUARE
Package form	CHIP CARRIER
Certification status	Not Qualified
Maximum seat height	0.75 mm
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	3 V
surface mount	YES
Temperature level	OTHER
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
width	5 mm

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[AK7756]

AK7756

DSP with Mono CODEC + Mic/Lineout Amp

GENERAL DESCRIPTION

The AK7756 is a highly integrated digital signal processor, including a mono voice audio codec, a MIC

pre-amplifier and digital audio I/F. The audio DSP has 9216step at fs = 8kHz parallel processing power.

As the AK7756 is a RAM based DSP, it is programmable for user requirements such as hands free and

acoustic effect. The AK7756EN is available in a space saving small 28pin QFN package and the

AK7756VF is available in a 30pin VSOP package.

FEATURES

DSP

- Word length: 24bit (Data RAM 24bit floating point)

- Instruction cycle: 13.6 ns (9216 steps at fs=8 kHz)

- Multiplier 20 x 20

→

36bit (double precision available)

- Divider 20 / 20

→

20bit

- ALU: 36bit arithmetic operation (with overflow margin 4bit) 24bit floating point

arithmetic and logic operation

- Program RAM: 3072 x 36bit

- Coefficient RAM: 2048 x 20bit

- Data RAM: 1024 x 24-bit (24bit floating point)

- Delay RAM: 3072 x 20bit, 3072 x 20bit

- Master Clock: 4.6MHz ~ 73.7MHz

- JX pins (Interrupt)

Audio Serial I/F

- Master / Slave operation

- Right / Left justified and I

- PCM (Short / Long Frame)

- 16bit linear, 8bit A-law, 8bit µ-law

Mono CODEC

- Sampling Rate 8KHz, 16KHz

- DAC S/N: 91dB, S/(N+D): 83dB (fs:16kHz)

- ADC S/N: 86dB, S/(N+D): 77dB (fs:16kHz)

Microphone interface

- Differential or single-ended input

- Programmable Gain (+33dB ~ +15dB and 0dB, 3dB step)

- Low Noise Microphone Bias

Automatic Power Down (CODEC, DSP)

μP

I/F : SPI, I

C-slave

C bootloader

Power supply

Analog (AVDD)

: 3.0V ~ 3.6V (typ.3.3V)

Digital1 (DVDD)

: 3.0V ~ 3.6V (typ.3.3V)

Digital2 (DVDD18)

: 1.7V ~ 1.9V (typ.1.8V)

Operating temperature range: -20°C ~ 85°C (AK7756EN), -40°C ~ 85°C (AK7756VF)

Package: 28pin QFN (AK7756EN)

30pin VSOP (AK7756VF)

MS1218-E-00-PB

2010/08

AK7756EN Related Products

	AK7756EN	AK7756	AKD7756HFS
Description	DSP with Mono CODEC Mic/Lineout Amp	DSP with Mono CODEC Mic/Lineout Amp	DSP with Mono CODEC Mic/Lineout Amp

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