AD1846 datasheet(8/28 Pages) AD

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AD1846

REV. A

–8–

Analog Signals

Pin Name

PLCC

I/O

Description

L_LINE

30

I

Left Line Input. Line level input for the left channel.

R_LINE

27

I

Right Line Input. Line level input for the right channel.

L_MIC

29

I

Left Microphone Input. Microphone input for the left channel. This signal can be ei-

ther line level or –20 dB from line level.

R_MIC

28

I

Right Microphone Input. Microphone input for the right channel. This signal can be

either line level or –20 dB from line level.

L_AUX1

39

I

Left Auxiliary #1 Line Input

R_AUX1

42

I

Right Auxiliary #1 Line Input

L_AUX2

38

I

Left Auxiliary #2 Line Input

R_AUX2

43

I

Right Auxiliary #2 Line Input

L_OUT

40

O

Left Line Level Output

R_OUT

41

O

Right Line Level Output

Miscellaneous

Pin Name

PLCC

I/O

Description

XTAL1I

17

I

24.576 MHz Crystal #1 Input

XTAL1O

18

O

24.576 MHz Crystal #1 Output

XTAL2I

21

I

16.9344 MHz Crystal #2 Input

XTAL2O

22

O

16.9344 MHz Crystal #2 Output

PWRDWN

23

I

Power-Down Signal. Active LO control places AD1846 in its lowest power consump-

tion mode. All sections of the AD1846, including the digital interface, are shut down

and consume minimal power.

INT

57

O

Host Interrupt Pin. This signal is used to notify the host that the DMA Current Count

Register has underflowed.

XCTL1:O

56 & 58

O

External Control. These signals reflect the current status of register bits inside the

AD1846. They can be used for signaling or to control external logic. XLTL1 and

XLTL0 are open-drain outputs.

VREF

32

O

Voltage Reference. Nominal 2.25 volt reference available externally for dc-coupling and

level-shifting. VREF should not be used where it will sink or source current.

VREF_F

33

I

Voltage Reference Filter. Voltage reference filter point for external bypassing only.

L_FILT

31

I

Left Channel Filter Input. This pin requires a 1.0

µF capacitor to analog ground for

proper operation.

R_FILT

26

I

Right Channel Filter Input. This pin requires a 1.0

µF capacitor to analog ground for

proper operation.

NC

46–52, 55

No Connect. Do not connect.

Power Supplies

Pin Name

PLCC

I/O

Description

VCC

35 & 36

I

Analog Supply Voltage (+5 V)

GNDA

34 & 37

I

Analog Ground

VDD

1, 7, 15, 19,

I

Digital Supply Voltage (+5 V)

24, 45, 54

GNDD

2, 8, 16, 20,

I

Digital Ground

25, 44, 53, 64

Số phần tương tự - AD1846

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Analog Devices	AD1846	249Kb / 28P	Low Cost Parallel-Port 16-Bit SoundPort Stereo Codec REV. A

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Mô tả tương tự - AD1846

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Analog Devices	AD1846	249Kb / 28P	Low Cost Parallel-Port 16-Bit SoundPort Stereo Codec REV. A
	AD1845	1Mb / 40P	Parallel-Port 16-Bit SoundPort Stereo Codec REV. C
	AD1848K	242Kb / 28P	Parallel-Port 16-Bit SoundPort Stereo Codec REV. 0
	AD1845	333Kb / 40P	Parallel-Port 16-Bit SoundPort Stereo Codec REV. C
	AD1848K	320Kb / 28P	Parallel-Port 16-Bit SoundPort Stereo Codec REV. 0
	AD1845JSTZ	676Kb / 40P	Parallel-Port 16-Bit SoundPort Stereo Codec REV. C
	AD1849K	293Kb / 28P	Serial-Port 16-Bit SoundPort Stereo Codec REV. 0
	AD1849	662Kb / 28P	Serial-Port 16-Bit SoundPort Stereo Codec REV. A
	AD1847	311Kb / 28P	Serial-Port 16-Bit SoundPort Stereo Codec REV. B
	AD1847	241Kb / 28P	Serial-Port 16-Bit SoundPort Stereo Codec REV. B

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