HA12135A View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

Manufacturer

HA12135A

Dolby B-Type Noise Reduction System

Hitachi -> Renesas Electronics 

HA12135A

–10

HA12134A, HA12135A, HA12136A

–20

–30

–40

NR–OFF

–50

NR–ON

100 200 400

1k 2k 4k

Frequency [Hz]

10 k 20 k

Figure 19 PB Mode Ripple Rejection Ratio vs. Frequency

10

HA12135A

3

1.0

VCC= 12 V

0.3

0.1

10 kHz

0.03

100 Hz

1 kHz

0.01

–20 –15 –10 –5

0

5 10 15 20

Vout [dB]

Figure 20 REC NR-OFF Total Harmonic Distortion vs. Output Level

17

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