UDA1325 データシートの表示（PDF） - Philips Electronics

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UDA1325

Universal Serial Bus (USB) CODEC

Philips Electronics 

Philips Semiconductors

Universal Serial Bus (USB) CODEC

BLOCK DIAGRAM

Preliminary specification

UDA1325

handbook, full pagewidth

VSSX

XTAL1b

XTAL2b

VDDX

VDDA3

XTAL2a

XTAL1a

VSSA3

24 (19)

25 (20)

26 (21)

28 (22)

52 (39)

53 (40)

54 (41)

55 (42)

CLK

27

OSC

48 MHz

TIMING

OSC

ADC

ANALOG

PLL

D+

8 (9)

D−

6 (8)

ANALOG FRONT-END

USB-PROCESSOR

P0.7 to P0.0

7, 5, 3, 64,

62, 60, 58, 56

P2.0 to P2.7

14, 16, 18, 20,

22, 23, 29, 30

(10) 9

(11) 10

(12) 11

(13) 12

(23) 32

(24) 33

(29) 38

(30) 39

(33) 42

(35) 44

VDDI

VSSI

VSSE

VDDE

VDDO

VSSO

VDDA1

VSSA1

VDDA2

VSSA2

GP2/DO 63 (4)

GP3/WSO 1 (5)

GP4/BCKO 2 (6)

GP1/DI 13 (14)

GP0/BCKI 17 (16)

GP5/WSI 15 (15)

PSEN 31

DA

WS

BCK

57 (1)

59 (2)

61 (3)

EA 48

ALE 50

VINL 43 (34)

PGA

VINR 47 (36)

PGA

VRN 49 (37)

VRP 51 (38)

DIGITAL I/O

MUX

I2S-BUS

INTERFACE

DECIMATOR

FILTER

SAMPLE

FREQUENCY

GENERATOR

FIFO

AUDIO FEATURE

PROCESSING DSP

UPSAMPLE FILTERS

LEFT

Σ∆ ADC

RIGHT

Σ∆ ADC

UDA1325

VARIABLE HOLD REGISTER

3rd-ORDER NOISE SHAPER

LEFT

DAC

REFERENCE VOLTAGE

RIGHT

DAC

45, 46

n.c.

41 (32)

Vref(AD)

40 (31)

Vref(DA)

MICRO-

CONTROLLER

(17) 19 SCL

(18) 21 SDA

TEST

CONTROL

BLOCK

(7) 4 SHTCB

(26) 35 TC

(27) 36 RTCB

−

(25) 34 VOUTL

+

(28) 37 VOUTR

MGM108

The pin numbers given in parenthesis refer to the SDIP42 version.

Fig.1 Block diagram (QFP64 package).

1999 May 10

5

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