WM5102 datasheet(153/334 Pages) WOLFSON

153 / 334 page

Production Data

WM5102

PD, June 2014, Rev 4.2

153

OUTPUT SIGNAL PATH

The WM5102 provides four stereo and one mono analogue output signal paths. These outputs

comprise ground-referenced headphone drivers, a differential earpiece driver, differential speaker

drivers and a digital output interface suitable for external speaker drivers. The output signal paths are

summarised in Table 58.

SIGNAL PATH

DESCRIPTIONS

OUTPUT PINS

OUT1L, OUT1R

Ground-referenced headphone output

HPOUT1L, HPOUT1R

OUT2L, OUT2R

Ground-referenced headphone output

HPOUT2L, HPOUT2R

OUT3

Differential (BTL) earpiece output

EPOUTP, EPOUTN

OUT4L, OUT4R

Differential speaker output

SPKOUTLN, SPKOUTLP,

SPKOUTRP, SPKOUTRN

OUT5L, OUT5R

Digital speaker (PDM) output

SPKDAT, SPKCLK

Table 58 Output Signal Path Summary

The analogue output paths incorporate high performance 24-bit sigma-delta DACs.

Under default conditions, the headphone drivers provide a stereo, single-ended output. A mono mode

is also available on each headphone output pair, providing a differential (BTL) configuration. The

ground-referenced headphone output paths incorporate a common mode feedback path for rejection

of system-related noise. These outputs support direct connection to headphone loads, with no

requirement for AC coupling capacitors.

The earpiece path provides a differential (BTL) output, suitable for a typical earpiece load. The

differential configuration offers built-in common mode noise rejection.

The speaker output paths are configured to drive a stereo pair of differential (BTL) outputs. The Class

D design offers high efficiency at large signal levels. With a suitable choice of external speaker, the

Class D output can drive loudspeakers directly, without any additional filter components.

The digital output path provides a stereo Pulse Density Modulation (PDM) output interface, for

connection to external audio devices.

Digital volume control is available on all outputs (analogue and digital), with programmable ramp

control for smooth, glitch-free operation. Any of the output signal paths may be selected as input to

the Acoustic Echo Cancellation (AEC) loopback path.

The WM5102 output signal paths are illustrated in Figure 56.

WM5102 Datasheet(PDF) 153 Page - Wolfson Microelectronics plc

WM5102 Datasheet(HTML) 153 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 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL