CXD2724AQ-3 datasheet(4/65 Pages) SONY

Part #	CXD2724AQ-3

Description	Single-Chip Dolby Pro Logic Surround Decoder

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Manufacturer	SONY [Sony Corporation]

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CXD2724AQ-3

Notations in parentheses indicate the fixed pin connection status.

(OPEN): Open, (VDD): +5V digital power supply, (AVDD): +5V analog power supply,

(VSS): Digital GND, (AVSS): Analog GND

∗ There are three digital and seven analog power supplies, but the power-on sequence is not specified.

Pin No.

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61 to 63

64

65 to 72

73

74

75 to 80

Symbol

RIN

LO2

AVS2

AVD2

ROUT

AVD4

AVS4

VSS3

SCK

REDY

T.P

XLAT

RVDT

XS24

VDD1

VSS4

T.P

SI

T.P

BCK

LRCK

VSS5

XMST

T.P

VSS6

T.P

VDD2

VSS7

T.P

I/O

I

O

—

O

—

I

O

I

—

O

I

I/O

—

I

O

—

O

—

O

Description

R-ch AD converter analog input.

R-ch AD converter LPF operational amplifier inverted output.

R-ch AD converter GND.

(AVSS)

R-ch AD converter power supply.

(AVDD)

R-ch DA converter output.

R-ch DA converter power supply.

(AVDD)

R-ch DA converter GND.

(AVSS)

Digital GND.

(VSS)

Shift clock input for microcomputer interface.

Transfer enabling signal output for microcomputer interface. Transfer prohibited when Low.

Test monitor. Normally outputs Hi-Z.

(OPEN)

Latch input for microcomputer interface.

Data input for microcomputer interface.

Serial data 24-/32-bit slot selection. 24-bit slot when Low. (valid for slave mode)

Digital power supply.

(VDD)

Digital GND.

(VSS)

Test monitor. Normally outputs Low.

(OPEN)

1-sampling 2-channel serial data input.

Test input. Normally inputs Low.

(VSS)

Serial bit transfer clock for serial I/O data SI and SO.

Sampling frequency clock for serial I/O data SI and SO.

Digital GND.

(VSS)

BCK, LRCK master/slave mode switching input. Master mode when Low.

Test monitor. Normally outputs Low.

(OPEN)

Digital GND.

(VSS)

Test monitor. Normally outputs Low.

(OPEN)

Digital power supply.

(VDD)

Digital GND.

(VSS)

Test monitor. Normally outputs Low.

(OPEN)

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