AK7746VT datasheet(11/62 Pages) AKM

Part #	AK7746VT

Description	Audio DSP with 5-channel 24-bit ADC and Input Mux

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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11 / 62 page

[ASAHI KASEI]

[AK7746]

[MS0369-E00]

- 11 -

2004/12

(2) DC Characteristics

(VDD=AVDD=DVDD=3.0~3.6V, Ta=25

°C)

Parameter

Symbol

min

typ

max

Unit

High level input voltage

VIH

80% of VDD

V

Low level input voltage

VIL

20% of VDD

V

High level output voltage Iout=-100

µA

Low level output voltage

Iout=100

µA

VOH

VOL

VDD-0.5

0.5

V

Input leak current

Note 1)

Input leak current (pull-down) Note 2)

Input leak current (XTI pin)

Iin

Iid

Iix

22

50

±10

µA

Note 1) The pull-down pins and XTI pin are not included.

Note 2) The pull-down pins are: CS , SDIN4/JX2, SDIN3/JX1, SDIN2, SDIN1/JX0, TESTI

Note:

Regarding the input/output levels in the text, the low level will be represented as "L" or 0, and the high level as "H" or 1. In

principle, "0" and "1" will be used to represent the bus (serial/parallel) such as registers.

(3) Current Consumption

(AVDD=DVDD=3.0V~3.6V, Ta=25

°C; master clock (XTI)=18.432MHz=384fs[fs=48kHz];

PLL is in active mode. )

Parameter

min

typ

max

Unit

Power supply current

Note 1)

1)Normal Speed

a) AVDD

b) DVDD

c) total(a+b)

40

45

85

mA

2)Double Speed

Note 2)

a) AVDD

b) DVDD

c) total(a+b)

42

53

95

60

90

150

mA

3) INIT_RESET ="L"(reference)

Note 3)

2

mA

Note 1) Varies slightly different according to the system frequency and contents of the DSP program.

Note 2) Max value is “Double Speed” mode.

Note 3) This is a reference value when using the crystal oscillator. Because most of the power current at the initial reset state is in

the oscillator section, the value may vary slightly according to the type of crystal oscillators and external circuits.

This is a reference value only.

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