Philips UDA1325

1999 May 10 20

Philips Semiconductors Preliminary speciﬁcation

Universal Serial Bus (USB) CODEC UDA1325

Filter characteristics playback channel

The overall filter characteristic of the UDA1325 in flat mode is given in Fig.4 (de-emphasis off). The overall filter

characteristic of the UDA1325 includes the filter characteristics of the DSP in flat mode plus the filter characteristic of the

FSDAC (fs= 44.1 kHz)

Fig.4 Overall filter characteristics of the UDA1325.

handbook, full pagewidth

MGM110

volume

(dB)

f (kHz)

10 20 30 40 50 60 70 80 90 1000

−160

−120

−80

−40

−140

−100

−60

−20

−0

Contents

Main Universal Serial Bus (USB) CODEC UDA1325 USB Specification USB Common Class Specification USB HID Usage Table USB Device Class Definition for Audio Devices Universal Serial Bus (USB) CODEC UDA1325 Page 1999 May 10 5 Universal Serial Bus (USB) CODEC UDA1325 The pin numbers given in parenthesis refer to the SDIP42 version. Fig.1 Block diagram (QFP64 package). BLOCK DIAGRAM UDA1325 + Page Page 1999 May 10 8 Fig.2 Pin configuration (QFP64 package). UDA1325H Page Page Page Page Universal Serial Bus (USB) CODEC UDA1325 Data transfer type audio feature registers Data transfer type control registers Page Page Page Page Page Page 1999 May 10 22 Fig.6 Input formats. Page Page Page Page Page Page Page Page Page Universal Serial Bus (USB) CODEC UDA1325 Page Page Page Page Page Page Page Page Page Page Page 1999 May 10 44 APPLICATION INFORMATION Fig.8 Application diagram UDA1325H (continued in Fig.9). UDA1325H 1999 May 10 45 74HCT373D Fig.9 Application diagram UDA1325H (continued from Fig.8). D1 D2 D4 UDA1325H PCF85116-3 1999 May 10 46 Fig.10 Application diagram UDA1325PS. d book, full pagewidth UDA1325PS 1999 May 10 47 PACKAGE OUTLINES SDIP42: plastic shrink dual in-line package; 42 leads (600 mil) SOT270-1 1999 May 10 48 QFP64: plastic quad flat package; 64 leads (lead length 1.95 mm); body 14 x 20 x 2.8 mm SOT319-2 Data Handbook IC26; Integrated Circuit Packages Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods Page Philips Semiconductors a worldwide company Printed in The Netherlands