WM8802SCFV datasheet(43/65 Pages) WOLFSON

43 / 65 page

Product Preview

WM8802

PP Rev 1.1 April 2004

Master clock setting:

DI7

DI6

DI5

DI4

DI3

DI2

DI1

DI0

CAU

CAL

DI15

DI14

DI13

DI12

DI11

DI10

DI9

DI8

CCB address: 0xE8;

Command address: 2

AMPOPR1 AMPOPR0

EXSYNC

PLLOPR

XMSEL1

XMSEL0

XINSEL

PLLSEL

PLL lock frequency setting

0: 512fs (fs

≤ 96kHz commend) (initial value)

1: 256fs

XINSEL

XIN input frequency setting

0: 12.288MHz (initial value)

1: 24.576MHz

XMSEL [1:0]

XMCK output frequency setting

00: 1/1 of XIN input frequency (initial value)

01: 1/2 of XIN input frequency

10: Reserved

11: Muted

PLLOPR

PLL (VCO) operation setting

0: Operate (initial value)

1: Stop

EXSYNC

PLL unused demodulation function (external synchronization function)

setting

0: PLL usage normal operation (initial value)

1: PLL unused external synchronization operation (supply 256fs clock to

TMCK)

AMPOPR [1:0]

Oscillation amplifier operation setting

00: Automatic stopping of oscillation amplifier during PLL lock (initial value)

01: Normal continuous operation

10: Reserved

11: Stop

If the PLL is stopped with PLLOPR during PLL lock, the output clocks are all muted.The muted

status continues even if the PLL becomes unlocked.

RERR goes to into error status, while the PLL is locked, if the permanent continuous operation

setting is set using AMPOPR[0:1]. However, the RERR status can be maintained if no PLL error is

output and if the sampling frequency changes when FSERR is set.

Sampling frequency calculation is not performed when the oscillation amplifier automatic stop mode

is set using AMPOPR[0:1]; even if the input sampling frequency changes within the capture range of

the PLL and no lock error occurs. The input data sampling frequency and the fs calculation result

may differ. However, if the channel status sampling frequency information is rewritten together with

input data changes, this information is reflected to the error flag and fs calculation of the input data is

performed. Since the oscillation amplifier continuous operation setting allows permanent fs

calculation, sampling frequency changes are always reflected to the error flag.

WM8802SCFV 数据表(PDF) 43 Page - Wolfson Microelectronics plc

WM8802SCFV 数据表(HTML) 43 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

数据表下载