WM8956 datasheet(22/80 Pages) WOLFSON

Part #	WM8956

Description	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers

PDF	80 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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22 / 80 page

WM8956

Preliminary Technical Data

PTD, July 2007, Rev 2.1

RINMUTE

Right Input PGA Analogue Mute

1 = Enable Mute

0 = Disable Mute

Note: IPVU must be set to un-mute.

RIZC

Right Input PGA Zero Cross

Detector

1 = Change gain on zero cross only

0 = Change gain immediately

5:0

RINVOL

[5:0]

010111

( 0dB )

Right Input PGA Volume Control

111111 = +30dB

111110 = +29.25dB

. . 0.75dB steps down to

000000 = -17.25dB

TOEN

Timeout Enable (Also enables jack

detect debounce clock)

0 = Timeout disabled

1 = Timeout enabled

R23 (17h)

Additional

Control (1)

TOCLKSEL

Slow Clock Selection (Used for

volume update timeouts and for jack

detect debounce)

0 = SYSCLK / 221 (Slower

Response)

1 = SYSCLK / 219 (Faster

Response)

Table 4 Input PGA Volume Control

See "Volume Updates" for more information on volume update bits, zero cross and timeout

operation.

WM8956 Datasheet(PDF) 22 Page - Wolfson Microelectronics plc

WM8956 Datasheet(HTML) 22 Page - Wolfson Microelectronics plc

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