PSB7280 Просмотр технического описания (PDF) - Siemens AG

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PSB7280

Joint Audio Decoder-Encoder

Siemens AG 

PSB 7280

Table 8

Power Supply

Pin No. Symbol Function Descriptions

11

VSS

I

29

VSS

I

35

VSS

I

42

VSS

I

53

VSS

I

59

VSS

I

66

VSS

I

72

VSS

I

77

VSS

I

94

VSS

I

12

VDD

I

36

VDD

I

60

VDD

I

93

VDD

I

34

VDD

I

41

VDD

I

52

VDD

I

58

VDD

I

65

VDD

I

10

VDDP

I

28

VDDP

I

71

VDDP

I

89

VDDA

I

Ground (common to VDD and VDDP) .

Positive power supply voltage (3.0 - 3.6 V).

Note: In former versions, pins 34, 41, 52, 58 and 65

could be connected to VDDP . This version requires

them to be connected to VDD .

Positive power supply voltage (4.5 - 5.5 V) for external

interfaces.

Separate positive power supply voltage (3.0 - 3.6 V) for

Clock Generation Unit (Oscillator).

92

VSSA

I

Separate Ground (0 V) for Clock Generation Unit

(Oscillator).

87

VDDAP I

Separate positive power supply voltage (3.0 - 3.6 V) for

Clock Generation Unit (PLL).

88

VSSAP

I

Note: The power supply for the PLL requires pin 87

connected to VDDAP. In former versions pin 87 was

connected to VDDP

Separate Ground (0 V) for Clock Generation Unit (PLL)

Semiconductor Group

16

Data Sheet 1998-07-01

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