HIT HA12232FP Datasheet

HA12232FP

Audio Signal Pre-Amp. for Car Deck

Target Specifications

Description

HA12232FP is audio signal pre-amp. LSI providing PB equalizer op-amp. in one chip.

Function

• PB equalizer × 2 channel

• Vref buffer × 1 channel

ADE-207-328 (Z)

1st Edition

Sep. 2000

Features

• Built-in referential voltage (VREF) for PB equalizer decreases external componen ts.

• This IC is low noise.

• This IC is strong for a cellular phone noise.

Operating Voltage Range

Product Min Max Unit

HA12232FP 6.5 15 V
Note: This IC is designed to operate on single supply.

HA12232FP

Pin Description, Equivalent Circuit (VCC = 9 V single supply, Ta = 25°C, No Signal,

The value in the table shows typical value.)

Pin No. Pin Name Note Equivalent Circuit Description

7RIP V = V

1VREFV = V

/2

CC

/2

CC

10 EQOUT(L) V = VCC/2

V

V1

V

CC

GND

V

CC

GND
V

CC

Ripple filter

Reference output

Equalizer output

V

GND

5 EQOUT(R)
2 PBIN(R) 

PB equalizer input

PBIN

NFI

13 PBIN(L)
3NFI(R)V = V

/2 Equalizer output

CC

12 NFI(L) for time constant

Rev.1, Sep. 2000, page 2 of 14

HA12232FP

Pin Description, Equivalent Circuit (VCC = 9 V single supply, Ta = 25°C, No Signal,

The value in the table shows typical value.) (cont.)

Pin No. Pin Name Note Equivalent Circuit Description

8V
14 GND  GND pin
4NC 
6
9
11

CC

 Power supply

Rev.1, Sep. 2000, page 3 of 14

HA12232FP

Block Diagram

R6

180

14 13 12 11

GND

PBIN(L)

VREF

1 2 3 4

PBIN(R)

C3

0.01µR412k
R5

330k

NFI(L)

−

+

+

−

NFI(R)

R2

330k

EQOUT(L) V

10

NC

NC

5 6 7

9 8

NC

NC

C2

1µ

CC

RIP

+

R1

180

C1

0.01µ

R3

12k

EQOUT(R)

Unit

R: Ω
C: F

Rev.1, Sep. 2000, page 4 of 14

HA12232FP

Absolute Maximum Ratings (Ta = 25°C)

Item Symbol Rating Unit Note

Supply voltage V
Power dissipation Pd 400 mW Ta ≤ 85°C
Operating temperature Topr −40 to +85 °C
Storage temperature Tstg −55 to +125 °C

Electrical Characteristics (Ta = 25°C, VCC = 9 V, Rg = 680 Ω)

Item Symbol Test Condition Min Typ Max Unit Remark

Quiescent current I
Channel separation CT RL Fin = 1kHz, Vin = 6mVrms 50.0 60.0  dB
EQ gain GV 1k Fin = 1kHz, Vin = 0.6mVrms 37.0 40.0 43.0 dB

THD THD Fin = 1kHz, Vin = 2.4mVrms  0.1 0.5 %
EQ maximum output V
Noise voltage level

converted in input
Note: 1. VCC = 6.5 V

Max 16 V

CC

Specification

Q

No signal 1.5 2.2 3.2 mA

GV 10k Fin = 10kHz, Vin = 0.6mVrms 33.0 36.0 39.0 dB

OM

Fin = 1kHz, THD = 1% 300 600  mVrms *1

VN Rg = 680Ω, Din-Audio Filter  0.7 1.5 µVrms

Rev.1, Sep. 2000, page 5 of 14