Dolby Laboratories 31-3043 用户手册

37

33

XTLI

I

Crystal oscillation circuit input

34

AVSX

–

Analog ground for master clock

35

XSOUT

O

S-ch D/A converter output

36

AVS6

–

Ground for S-ch D/A converter

37

AVD6

–

Power supply for S-ch D/A converter

38

RIN

I

Analog input of R-ch A/D converter

39

LO2

O

OP amp. inverting output for LPF of R-ch A/D converter

40

AVS2

–

Ground for R-ch A/D converter

41

AVD2

–

Power supply for R-ch A/D converter

42

ROUT

O

R-ch D/A converter output

43

AVD4

–

Power supply for R-ch D/A converter

44

AVS4

–

Ground for R-ch D/A converter

45

VSS3

–

Digital ground

46

SCK

I

Shift clock input of microprocessor interface

47

REDY

O

Transfer permission signal output of microprocessor interface         L : Transfer prohibition

48

T.P

–

Monitor pin for test            Normally, outputs "Hi-Z".

49

XLAT

I

Latch input of microprocessor interface

50

RVDT

I

Data input of microprocessor interface

51

XS24

I

24/32 bit slot selection of serial data        L : 24 bit slot (It is effective at slave mode.)

52

VDD1

–

Digital power supply

53

VSS4

–

Digital ground

54

T.P

–

Monitor pin for test          Normally, outputs "L".

55

SI

I

Serial data input of 1 sampling 2 channel

56

T.P

–

Input pin for test          Normelly, outputs "L".

57

BCK

I/O

Serial bit transfer clock of serial input/output data SI and SO

58

LRCK

I/O

Sampling frequency clock of serial input/output data SI and SO

59

VSS5

–

Digital ground

60

XMST

I

Master/slave mode switching input of BCK and LRCK       L : master mode

61-63

T.P

O

Monitor pin for test           Normally, outputs "L".

64

VSS6

–

Digital ground

65-72

T.P

O

Monitor pin for test           Normally, outputs "L".

73

VDD2

–

Digital power supply

74

VSS7

–

Digital ground

75-80

T.P

O

Monitor pin for test           Normally, outputs "L".