WM8608SEFT/V Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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Fabricante

WM8608SEFT/V

5 to 7.1 Channel PWM Controller

Wolfson Microelectronics plc 

Product Preview

WM8608

ELECTRICAL CHARACTERISTICS

Test Conditions

AVDD, BVDD, DVDD = 2.7 to 3.3V, AGND, DGND, BGND = 0V, TA = -20 to +85oC, fs = 44.1kHz/48kHz, MCLK = 256fs unless

stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input capacitance

Ci

3

4

pF

Input leakage

Ileak

±0.1

±0.5

µA

Oscillator

Input XIN LOW level

Input XIN HIGH level

VXIL

VXIH

0

0.44

V

0.77

AVDD

V

Input XIN capacitance

CXI

4

5

pF

Input XIN leakage

Output XOP LOW

Output XOP HIGH

IXleak

0.10

0.11

0.13

mA

VXOL

15pF load capacitors

0.1

0.4

0.5

V

VXOH

15pF load capacitors

1.2

1.3

1.4

V

Digital Logic Levels (CMOS Levels)

Input LOW level

VIL

0.3 x DVDD

V

Input HIGH level

VIH

Pull-up/pull-down resistance

0.7 x DVDD

V

100

200

400

kΩ

Output LOW

VOL

Output HIGH

VOH

Digital Logic Levels (LVDS Levels)

IOL=+1mA

IOL=-1mA

0.9 x DVDD

0.1 x DVDD

V

V

Output differential voltage

Offset voltage

Termination load

VOD

RT=100Ω

200

350

500

mV

VOS

RT=100Ω

0.95

1.25

1.4

V

RT

20pF load

100

Ω

PCM to PWM converter

Digital SNR

FL, FR, FC, SL, SR, RC

105

dB

Typical SNR with output stage

FL, FR, FC, SL, SR, RC

100

dB

(A-weighted)

Typical Dynamic Range with

FL, FR, FC, SL, SR, RC

100

dB

output stage

Digital THD+N at 0dBfs

FL, FR, FC, SL, SR, RC

0.001

%

Typical THD+N at 30Watt with

FL, FR, FC, SL, SR, RC

0.1

%

output stage

Typical THD+N at 1Watt with

FL, FR, FC, SL, SR, RC

0.01

%

typical output stage

Typical IMD (CCIF – 19/20kHz)

FL, FR, FC, SL, SR, RC

-70

dBFS

Typical IMD (SMPTE –

60Hz/7kHz)

FL, FR, FC, SL, SR, RC

-70

dBFS

PCM to PWM converter

Digital SNR

Typical SNR with output stage

Subwoofer5

Subwoofer5

105

dB

100

dB

(A-weighted)

Typical Dynamic Range with

output stage

Digital THD+N at 0dBfs

Subwoofer5

Subwoofer5

100

dB

0.001

%

Typical THD+N at 30Watt with

output stage

Typical THD+N at 1Watt with

typical output stage

Typical IMD (CCIF – 19/20kHz)

Typical IMD (SMPTE –

60Hz/7kHz)

Subwoofer5

Subwoofer5

Subwoofer5

Subwoofer5

0.1

%

0.01

%

-70

dBFS

-70

dBFS

w

PP Rev 1.5 March 2004

7

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