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UDA1331H

Universal Serial Bus (USB) Audio Playback Peripheral (APP)

Philips Electronics 

Philips Semiconductors

Universal Serial Bus (USB) Audio

Playback Peripheral (APP)

BLOCK DIAGRAM

handbook, full pagewidth

TC 55

RTCB 61

SHTCB 15

TEST

CONTROL

BLOCK

D+ D−

20 17

ANALOG FRONT-END

USB-PROCESSOR

GP4/BCKO 14

GP3/WSO 13

GP2/DO 10

GP1/DI 7

GP0/BCKI 64

GP5/WSI 2

DIGITAL I/O

SAMPLE

FREQUENCY

GENERATOR

VSSX 36

XTAL1 37

XTAL2 38

VDDX 39

OSC TIMING

FIFO REGISTERS

fs

AUDIO FEATURE

PROCESSING DSP

fs

UP-SAMPLE FILTERS

64fs

VARIABLE HOLD REGISTER

128fs

3rd-ORDER

NOISE SHAPER

VOUTL 53

LEFT

DAC

RIGHT

DAC

Preliminary specification

UDA1331H

MICRO-

CONTROLLER

3 SCL

4 SDA

6 EA

8 PSEN

9 ALE

11 P2.0

12 P2.1

18 P2.2

19 P2.3

21 P2.4

22 P2.5

23 P2.6

24 P2.7

56 P0.0

57 P0.1

58 P0.2

59 P0.3

60 P0.4

62 P0.5

63 P0.6

5 P0.7

UDA1331H

32 VDDE

30 VSSE

29 VSSI

25 VDDI

51 VDDO

49 VSSO

45 VDDA

44 VSSA

46 VOUTR

REFERENCE

VOLTAGE

42

Vref

MBK529

1998 Oct 06

Fig.1 Block diagram.

4

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