CXA1878Q 查看數據表（PDF） - Sony Semiconductor

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CXA1878Q

Dolby∗ B-C Type Noise Reduction System with Recording/Playback Equalizer Amplifier

Sony Semiconductor 

Pin Description

Pin

No.

Symbol

Typical pin voltage

I/O Z (in)

DC AC

CXA1878Q

(Ta = 25°C, VCC = 7.0V, VEE = –7.0V, DVCC = 5.0V)

Equivalent circuit

Description

40k

1

51

NR RECIN1

NR RECIN2

0.0V

–26dBv

I

40kΩ

1

51

GND

1.5k

Recording equalizer

amplifier input

2

50

LINE OUT1

LINE OUT2

0.0V

–4dBv

O

—

300

2

50

300

3.4k

Line output

3 NR TCH1

49 NR TCH2

VEE

+0.4V

—

—

—

330k

13k

3

49

36k

Time constant for the

HLS

13.5k

4 NR TCL1 VEE

48 NR TCL2 +0.4V — — —

4

48

480k

Time constant for the

LLS

–3–

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