HA12155NT View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

View to exact match

HA12155NT

Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)

Hitachi -> Renesas Electronics 

HA12155NT/HA12157NT

Electronic Volume Gain vs. Frequency

30

VRI in IAOUT out V CC = 14 V V in = –12 dBs

20

10

0

–10

–20

–30

–40

–50

–60

–70

10

100

1k

10 k

DAC Step0

DAC Step20

DAC Step29

DAC Step36

DAC Step42

DAC Step47

DAC Step51

DAC Step56

DAC Step62

100 k

Frequency (Hz)

Level Meter Output vs. Input Level (HA12155)

4.0

3.0

–20 dB Range

2.0

0 dB Range

1.0

0 dB = 580 mVrms

VCC = 14 V

0

f = 1 kHz

–80 –60 –40 –20 0 20 40

Input level Vin (dB)

Rev.4, Jun. 1997, page 49 of 57

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