CXA2149 查看數據表（PDF） - Sony Semiconductor

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CXA2149

I²C-Bus-Compatible Audio / Video Switch

Sony Semiconductor 

CXA2149Q

Audio System

Item

Gain

Channel 1/Channel 2

Channel 3 (max.)

Channel 3 (min.)

Symbol

FGVA1

VGVAF

VGVA0

Conditions

f=1 kHz, 1 Vp-p I/P.

Min. Typ. Max. Unit

–0.5 0 0.5 dB

–0.5 0 0.5 dB

–68 –63 –58 dB

–3 dB bandwidth

FBWA 1 Vp-p I/P, 1 kHz serving as 0 dB ref. —

1

— MHz

Total harmonic distortion

Input dynamic range

Crosstalk

Ripple rejection ratio

THD

VDRA

VCtA

RRA

f=1 kHz, 0.5 Vp-p I/P with a 400 Hz to

80 kHz passband.

f=100 kHz, distortion at O/P less than

0.3 %

f=1 kHz, 1 Vp-p I/P, measure other

outputs.

f=100 Hz, 0.3 Vp-p signal applied to

AVCC

— 0.01 0.05 %

2.8 3.0 — Vrms

— –90 –76 dB

— –55 — dB

Output DC offset

Voff Offset voltage between I/P and O/P. –30 0 30 mV

Input impedance

Output impedance

Phase difference

S/N ratio

Mute

Volume control

Fine

Coarse

Zin

Zout

VPDA

S/NA

Amute

FEVC

CEVC

f=1 kHz, 1 Vrms input.

Compare left and right channels.

f=1 kHz, 1 Vp-p input with a 20 Hz to

20 kHz passband. See note 1.

f=1 kHz, 1 Vp-p input.

f=1 kHz, 0.5 Vp-p input.

— 66 — kΩ

— 20 — Ω

— 0.1 — Deg

85 90 — dB

— –90 –70 dB

0.6 1 1.4 dB

7.6 8 8.4 dB

Audio System Notes

1. Channel 3 should be set at maximum volume.

—9—

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