CXA1911Q データシートの表示（PDF） - Sony Semiconductor

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CXA1911Q

Dolby B Type Noise Reduction System with Playback Equalizer

Sony Semiconductor 

CXA1911Q

Operating modes (TAPESW, DRSW, NRSW, MSSW, MODESW, NRMODE)

The CXA1911Q has an NR switch (NRSW), NR mode switch (NRMODE), equalizer switch (TAPESW), head

switch (DRSW), MS switch (MSSW), and MS gain switch (MSMODE).

The operating modes for each switch are shown in the following table.

SW

NRSW

NRMODE

TAPESW

DRSW

MSSW

MSMODE

Function for Low input

NR OFF

DOLBY B

70µS

PB FWD

MS OFF

G2 MODE

Function for High input

NR (B/C) ON

DOLBY C

120µs

PB RVS

MS ON

G1 MODE

Click noise can be reduced by the external CR time constant for NRSW switching.

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