WM8953ECS 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM8953ECS

Low Power Stereo ADC with PLL and TDM Interface

Wolfson Microelectronics plc 

Production Data

WM8953

Test Conditions

DCVDD = 1.8V, DBVDD = 3.3V, AVDD = 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz,

PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

TEST CONDITIONS

Analogue Input Pin Impedances (LIN1, LIN2, LIN3, LIN4, RIN1, RIN2, RIN3, RIN4)

PGA Input Resistance LIN1, LIN3, RIN1 or RIN3

(PGA Gain = -16.5dB)

Note: this will be seen in

parallel with the

resistance of other

enabled input paths

from the same pin

LIN1, LIN3, RIN1 or RIN3

(PGA Gain = 0dB)

LIN1, LIN3, RIN1 or RIN3

(PGA Gain = +30dB)

LIN2, LIN4, RIN2 or RIN4

(Constant for all gains)

MIN TYP MAX UNIT

57

kΩ

33

kΩ

2

kΩ

65

kΩ

Line Input Resistance

Note: this will be seen in

parallel with the

resistance of other

enabled input paths

from the same pin

Input Capacitance

LIN2 or RIN2 to INMIXL or

INMIXR (-12dB)

LIN2 or RIN2 to INMIXL or

INMIXR (0dB)

LIN2 or RIN2 to INMIXL or

INMIXR (+6dB)

All analogue input pins

60

kΩ

15

kΩ

7.5

kΩ

10

pF

Test Conditions

DCVDD = 1.8V, DBVDD = 3.3V, AVDD = 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz,

PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

TEST CONDITIONS

Input Programmable Gain Amplifiers (PGAs) LIN12, LIN34, RIN12 and RIN34

Minimum Programmable Gain

Maximum Programmable Gain

Programmable Gain Step Size

Guaranteed monotonic

Mute Attenuation

Inputs disconnected

Common Mode Rejection Ratio

Single PGA in differential mode, gain = +30dB

(1kHz input)

Single PGA in differential mode, gain = 0dB

Single PGA in differential mode, gain = -16.5dB

Input Mixers INMIXL and INMIXR

Minimum Programmable Gain

PGA Outputs to INMIXL and INMIXR

Maximum Programmable Gain

PGA Outputs to INMIXL and INMIXR

Programmable Gain Step Size

PGA Outputs to INMIXL and INMIXR

Minimum Programmable Gain

Line Inputs to INMIXL and INMIXR

Maximum Programmable Gain

Line Inputs to INMIXL and INMIXR

Programmable Gain Step Size

Line Inputs to INMIXL and INMIXR

Mute attenuation

MIN TYP MAX UNIT

-16.5

dB

30

dB

1.5

dB

90

dB

60

dB

50

50

0

dB

+30

dB

30

dB

-12

dB

+6

dB

3

dB

95

dB

w

PD, January 2009, Rev 4.0

9

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