Panasonic AN6291S, AN6291 Datasheet

ICs for Cassette, Cassette Deck

■ Overview

The AN6291 and the AN6291S are the single chip ICs suitably developed for noise reduction of dbxII type and used for stereo operation. They can be used for U.S. sound multiplex TV. 1.8V low voltage operation enables to apply for battery-operated equipment to the Hi-Fi deck. Package is available for 22-pin DIL plastic and 22-pin SOP package. Equipment can be minitualized and high integration.

■ Features

•

Wide dynamic range : 110dB

•

Low operating voltage : V

CC (min.)

=1.8V

•

Fewer external components

•

Adjustment : only one

•

Low power consumption

•

Wide operating supply voltage range :

V

CC (opr)

=1.8V to 14V

AN6291, AN6291S

Dual dbx II Noise Reduction System ICs

1 2 3 4 5 6 7 8

9 10 11

3 ~15˚

10.16±0.25

0.35

+ 0.1

– 0.05

4.7±0.25

2.54

1.2±0.25

0.5±0.1

8.6±0.3

26.7±0.3

22 21 20 19 18 17 16 15 14 13 12

3.3±0.25

1.0±0.25

AN6291

22-Lead DIP Package (DIP022-P-0400A)

Unit : mm

AN6291S

1.09

0.4±0.25

1.27

Unit : mm

1 2 3 4 5 6 7 8

9 10 11

22 21 20 19 18 17 16 15 14 13 12

15.3±0.3

0.1±0.1

0.3

7.2±0.3

9.4±0.3

22-Lead SOP Package (SOP022-P-0375)

0.15

0.925

2.0±0.2

ICs for Cassette, Cassette Deck

AN6291, AN6291S

22

V

CC

Current

Source

21 20 19 18 17 16 15 14 13 12

2 3 4 5 6 7 8 9 10 11

NC

RMS IN–B

TIMING–BCCA

IN–B

CAP

1–B

CAP

2–B V

OUT–

B

ON – OFF

–B I TIME ENCODE

1

DECODECAP

2– A

N.I.ON – OFF

–A

V

OUT–

AADJ GND RMS

IN– A

TIMING

– A

CCA

IN– A

CAP 1– A

RMS

CCA

RMS

CCA

Timing Current

OP Amp.

–

+

OP Amp.

+

–

Logic

Bias

GND

SUB

V

CC

■ Block Diagram

■ Pin Descriptions

Pin No.

Pin Name 1 2 3 4 5 6 7 8 9

10 11

Adjustment of timing current GND RMS IN-A TIMING-A CCA IN-A CAP-1-A CAP-2-A VOUT-A ON-OFF-A N.I. DECODE

Pin No.

Pin Name 12 13 14 15 16 17 18 19 20 21 22

ENCODE I TIME ON-OFF-B VOUT-B CAP-2-B CAP-1-B CCA IN-B TIMING-B RMS IN-B NC V

CC

ICs for Cassette, Cassette Deck

AN6291, AN6291S

V

CC

I

CC

P

D

T

opr

T

stg

T

stg

Supply Voltage Supply Current Power Dissipation (Ta=75˚C) Operating Ambient Temperature

Storage Temperature

V

mA

mW

˚C ˚C ˚C

Parameter Symbol Rating Unit

14.4 5

100

–20 ~ + 75 –55 ~ + 125 –40 ~ + 125

AN6291 AN6291S

■ Absolute Maximum Ratings (Ta=25˚C)

Parameter Symbol Condition min. typ. max. Unit

Input/Output Characteristics/ENCODE Mode

Input/Output Characteristics/DECODE Mode

Total Harmonic Distortion/DECODE Mode

Crosstalk/ENCODE Mode

Ripple Rejection Ratio/DECODE Mode Quiescent Current Input/Output Characteristics/dbx OFF Mode Total Harmonic Distortion/dbx OFF Mode Output Noise Voltage/dbx OFF Mode

ENCODE Mode

DECODE Mode

ENCODE Mode DECODE Mode ENCODE Mode DECODE Mode

V

OE –1

V

OE –2

V

OE –3

V

OD –1

V

OD –2

V

OD –3

V

OME

V

OMD

THD

D

V

NOE

V

NOD

CD

E

CD

D

CT

SVRR

I

CC

V

OFF

THD

OFF

Vn

OFF

V

IN

= + 20dB, f=1kHz

V

IN

= 0dB, f=1kHz

V

IN

= –40dB, f=1kHz

V

IN

= + 10dB, f=1kHz

V

IN

=0dB, f=1kHz

V

IN

= –20dB, f=1kHz

THD=1%, f=1kHz

V

O

= + 14dB, f=1kHz

Input Short A-weight

V

IN

= 0dB, f=1kHz

Measuring channel : Short Another channel : Output 200mV, f=1kHz

f=60Hz, V=100mV, Input Short V

CC

=3V, Input Short

V

IN

= + 20dB, f=1kHz

V

IN

= + 20dB, f=1kHz

Input Short, A-weight

7.5 –2

–23

17 –2

–44

80

200

–1.2 –1.2

50

40

17

10

0

–20

20

0 –40 150 450

0.15 100

3 0 0

60

55

1.8 20

0.3 10

12.5 + 2

–17

23

+ 2

–36

0.3

200

6

1.2

3.2 23

1

20

dB

mV

%

µV

dB

mA

dB

%

µV

Note) 0dB= 20mV= –34dBV

Maximum Output Voltage

Noise Output Voltage

Difference Between Channels

■ Electrical Characteristics (VCC=3V, Ta=25˚C)