WM8960 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM8960

Stereo CODEC with 1W Stereo Class D Speaker Drivers and Headphone Drivers for Portable Audio Applications

Wolfson Microelectronics plc 

WM8960

Production Data

ELECTRICAL CHARACTERISTICS

Test Conditions

DCVDD = 1.8V, DBVDD = 3.3V, AVDD = SPKVDD1 = SPKVDD2 = 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, PGA gain = 0dB,

24-bit audio data unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

Analogue Inputs (LINPUT1, RINPUT1, LINPUT2, LINPUT3, RINPUT2, RINPUT3)

Full-scale Input Signal Level –

VINFS

L/RINPUT1,2,3

1.0

note this changes in proportion

Single-ended

0

to AVDD

L/RINPUT1,2,3

0.5

Differential MIC

-6

Mic PGA equivalent input noise

0 to 20kHz,

150

+30dB gain

Input resistance

L/RINPUT1

+30dB PGA gain

3

(Note that input boost and

Differential or single-

bypass path resistances will be

ended MIC configuration

seen in parallel with PGA input

resistance when these paths are

enabled)

L/RINPUT1

0dB PGA gain

Differential or single-

ended MIC configuration

49

L/RINPUT1

-17.25dB PGA gain

87

Differential or single-

ended MIC configuration

L/RINPUT2, (Constant for all gains)

85

L/RINPUT3

Differential MIC

configuration

L/RINPUT2,

Max boost gain

7.5

L/RINPUT3 L/RINPUT2/3 to boost

L/RINPUT2,

0dB boost gain

13

L/RINPUT3 L/RINPUT2/3 to boost

L/RINPUT2,

Min boost gain

37

L/RINPUT3 L/RINPUT2/3 to boost

L/RINPUT3

Max bypass gain

17

L/RINPUT3 to bypass

L/RINPUT3

Min bypass gain

70

L/RINPUT3 to bypass

Input capacitance

10

MIC Programmable Gain Amplifier (PGA)

Programmable Gain Min

-17.25

Programmable Gain Max

30

Programmable Gain Step Size

Guaranteed monotonic

0.75

Mute Attenuation

LMIC2B = 0 and

85

RMIC2B = 0

Selectable Input Gain Boost

Gain Boost Steps

Input from PGA

0, 13, 20,

29, MUTE

Input from L/RINPUT2 or

L/RINPUT3

-12, -9, -6,

-3, 0, 3, 6,

MUTE

Analogue Inputs (LINPUT1/2 Differential, RINPUT1/2 Differential) to ADC out via MIC PGA

Signal to Noise Ratio

SNR

AVDD = 3.3V

94

(A-weighted)

AVDD = 2.7V

93

Total Harmonic Distortion Plus

Noise

THD+N

-3dBFs input,

AVDD = 3.3V

-86

0.005

-3dBFs input,

-80

AVDD = 2.7V

0.01

MAX

UNIT

Vrms

dBV

Vrms

dBV

uV

k

k

k

k

k

k

k

k

k

pF

dB

dB

dB

dB

dB

dB

dB

dB

%

w

PD, August 2013, Rev 4.2

6

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