WM8983GEFLSLASHV datasheet(14/124 Pages) WOLFSON

14 / 124 page

WM8983

Production Data

PD, Rev 4.3, May 2010

SPEAKER OUTPUT THD VERSUS POWER

A ud io P recisio n

08 /2 9/06 1 1 :40:44

W M 8 9 8 3 T H D+ N vs . Outp ut Po w e r -- SP KV D D = 3 .6 V

W M8 9 8 3 _ D AC _ SPK_ T H D + N _ vs _ P o w e r_ 8 o h m _ SPKVD D 3 6 V.a t2 7

Co lo r

Sw e e p

Tra c e

Line S tyle

Th ic k

Da ta

Axis

Co m m e n t

Cya n

So lid

An lr.TH D + N Am p l

Le ft

3.6V

Gre e n

So lid

An lr.TH D + N Am p l

Le ft

3.3V

Re d

So lid

An lr.TH D + N Am p l

Le ft

Blu e

So lid

An lr.TH D + N Am p l

Le ft

2.7V

Sys te m AP 2

B o a rd R e vis ion : 2.0

D e vic e D a te C o de : 67 AALN A

In p u t P a th : S P D IF_ IN

In p u t S ign al: 99 7H z; S w ee p 10 0% FS -> 0% F S ; 24 -b it; 2 5 6 fs (fs = 48 k H z)

O u tp ut P a th : R /LO U T2; L O U T 2 VO L = R O U T2 VO L= + 6 dB ; 8 o h m B T L

O u tp ut R e fe re nc e : + 4 .4 28 dB rA

Su p p lie s : Exte rn a l - AVD D = D BVD D = D C VD D = S e e C o m m e n t; SPKVD D = + 3 .6 V

B W filter : 22 H z - 22 k H z

Ad dition al Filte rin g: N o n e

Dith e r: N o n e

R MS or Avera g in g : Avera g in g

-1 00

-90

-80

-70

-60

-50

-40

-30

-20

-10

600m

50 m

1 00 m

15 0m

2 00 m

25 0m

3 00 m

3 50 m

4 00 m

4 50 m

50 0m

55 0m

Figure 1 Speaker THD+N vs Output Power (Boost Disabled: SPKVDD=3.6V; SPKBOOST=0; AVDD Range =3.6-2.7V)

Audio Precision

08/29/06 12:57:21

W M8983 THD+N vs. Output Power -- SPKVDD=4.2V

WM8983_DAC_SPK_THD+N_vs _Power_8ohm _SPKVDD=4.2V.at27

Color

Sweep

Trace

Line Style

Thick

Data

Axis

Com m ent

Cyan

Solid

Anlr.THD+N Am pl

Left

3.6V

Red

Solid

Anlr.THD+N Am pl

Left

3.3V

Green

Solid

Anlr.THD+N Am pl

Left

Blue

Solid

Anlr.THD+N Am pl

Left

2.7V

Sys tem AP2

Board Revis ion: 2.0

Device Date Code: 67AALNA

Input Path: SPDIF_IN

Input Signal: 997Hz; Sweep 100%FS -> 0%FS; 24-bit; 256fs (fs =48kHz)

Output Path: R/LOUT2; LOUT2VOL=ROUT2VOL=+6dB; 8ohm BTL

Output Reference: +4.428dBrA

Supplies : External - AVDD=DBVDD=DCVDD=See Com m ent; SPKVDD=+4.2V

BW filter : 22Hz - 22kHz

Additional Filtering: None

Dither: None

RMS or Averaging: Averaging

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

800m

50m

100m

150m

200m

250m

300m

350m

400m

450m

500m

550m

600m

650m

700m

750m

Figure 2 Speaker THD+N vs Output Power (Boost Disabled: SPKVDD=4.2V; SPKBOOST=0; AVDD Range =3.6-2.7V)

WM8983GEFL/V Datasheet(PDF) 14 Page - Wolfson Microelectronics plc

WM8983GEFL/V Datasheet(HTML) 14 Page - Wolfson Microelectronics plc

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