Datasheet AN7086S Datasheet (Panasonic)

■ Overview

The AN7086S is an integrated circuit developed for
recording playback pre-/power amp., built-in VAS (Voice
Activated System) function especially.

■ Features

•

Rec. playback pre-/power amp. IC

•

VAS function built-in

•

Earphone monitor at recording is possible

•

350mW BTL, OCL power amp. built-in

•

Mic. amp built-in

•

ALC function built-in

•

Rec./Play switching is possible with a single circuit

switch

ICs for Cassette, Cassette Deck

AN7086S

Recording/Playback Pre-/Power Amplifier IC f or 3V Microcassette

Unit : mm

0.1±0.1

2.0±0.2

0.3

0.925

0.15

0.45

1
2
3
4
5
6
7
8

9
10
11
12

24
23
22
21
20
19
18
17
16
15
14
13

0.4±0.25

1.27

9.4±0.3

7.2±0.3

15.3±0.3

24-Lead SOP Package (SOP024-P-0375)

■ Block Diagram

24 23 22 21 20 19 18 17 16 15 14 13

1 2 3 4 5 6 7

8

9 10 11 12

Power

GND

GND 1/2 V

CC

V

CC

NC

Power

V

CC

+–

+
55dB
–

+
20dB
–

+
24dB
–

+
14dB
–

+
14dB
–

ALC

R/P
Cont.

Ripple
Rej.

Open
Loop
Gain
74dB

120kΩ

VAS
Det.

Power
Mute

ICs for Cassette, Cassette Deck

AN7086S

■ Absolute Maximum Ratings (Ta=25˚C)

V

CC

I

CC

P

D

T

opr

T

stg

Supply Voltage
Supply Current
Power Dissipation
Operating Ambient Temperature
Storage Temperature

V

mA

mW

˚C
˚C

Parameter Symbol Rating Unit

6

1000

520

–20 ~ + 75

–55 ~ + 125

Parameter Symbol Range

■ Recommended Operating Range (Ta= 25˚C)

Operating Supply Voltage Range

V

CC

1.8V ~ 4.5V

At No Input/Playback

V

in

= – 85dBV, Rg= 1kΩ

V

in

= 3mVrms, Rg= 1kΩ

THD= 1%, R

g

= 1kΩ

10

65

0.3

69.5

0.8

38.5

300

–50

8

–6.6

0.1

1.6

Parameter Symbol Condition min. typ. max. Unit

■ Electrical Characteristics (VCC=3V, f=1kHz, Ta=25˚C)

Rg= 1kΩ,
DIN/AUDIO Filter

V

in

= – 80dBV

V

in

= – 80dBV

THD = 5%
R

g

= 2.2kΩ,

DIN/AUDIO Filter

V

in

= 5mVrms, RL= 8Ω

V

in

= 5mVrms, RL= 8Ω

THD = 10%, R

L

= 8Ω

Rg= 0Ω, RL= 8Ω,
DIN/AUDIO Filter

Rg= 0Ω, RL= 8Ω,

Mic. input level at Piny
Voltage= 0.2V

V

in

= – 60dBV, Rg= 1.5kΩ

V

in

= – 30dBV, Rg= 1.5kΩ

f

r

= 270Hz, Vr = 30mVrms,

R

g

= 1kΩ

f

r

= 270Hz, Vr = 30mVrms,

R

g

= 2.2kΩ

Playback mode
Recording mode

35

1

75.5
3

43.5
1

50

18

–2.5

3

0.3

2.3

20

74

0.1

0.6

72.5

1.3

1.08

41

0.11
350

0

14

–4.5

1.5

1

–46

–74

–70

–40

1.8

–42

–65

–50

–30

µVrms

dBV

dBV

dBV

dBV

Quiescent Circuit Current

<Pre-Amp.>

Open Circuit Gain
Total Harmonic Distortion
Maximum Output Voltage

Noise Voltage Referred to Input

<Recording Amp.>

Close Circuit Gain
Total Harmonic Distortion
Maximum Output Voltage

Output Noise Voltage

<Power Amp.>

Closed Circuit Gain
Total Harmonic Distortion
Maximum Output Voltage

Output Noise Voltage
Output Offset Voltage

<VAS>

VAS Operation Input Voltage

<ALC>

Effective Voltage
Effective width

<Ripple Rejection>

Playback System Ripple Rejection

Recording System Ripple Rejection

<Switching Pin>

Rec./Playback Switching Pin
Rec./Playback Switching Pin

I

tot

G

V1

THD

1

V

O1

V

ni

G

V2

THD

R

V

oR

V

nR

GV – P

O

THD – P

O

VO – P

O

Vn – P

O

V

DC

VAS

V

ALC

W

ALC

RR

P

RR

R

V

PB

V

REC

mA

dB

%

Vrms

dB

%

Vrms

dB

%

mW

mV

µVrms

dBV

%

V
V

ICs for Cassette, Cassette Deck

AN7086S

0.01

Output Voltage V

out

(Vrms)

Input Voltage Vin (mVrms)

Input/Output Characteristics

V

out

, THD-V

in

0.1 0.3 0.5 1 3

0.5

1

3

5

10

0.3

0.1

0.05

0.03

0.1

10

30

100

3

1

0.3

5 10

Pre. Amp.

V

O

THD

Total Harmonic Distortion THD (%)

VCC=3V
R

L

=50kΩ

f

req.

=1kHz

0.01

Output Voltage V

out

(Vrms)

Input/Output Characteristics

V

out

, THD-V

in

0.3 1 3 10

1

3

10

0.3

0.1

0.03

0.1

10

30

100

3

1

0.3

30 100

Total Harmonic Distortion THD (%)

Power Amp.

VCC=3V
R

L

=80Ω

f

req.

=1kHz

0.01

Output Voltage V

out

(Vrms)

Input/Output Characteristics

V

out

, THD-V

in

0.003 0.01 0.03 0.1

1

3

10

0.3

0.1

0.03

10

30

100

3

1

0.3

0.3 1

Total Harmonic Distortion THD (%)

Rec. Amp.

V

O

THD

VCC=3V
f

req.

=1kHz

R

L

=10kΩ

Voltage Gain G

V

(dB)

Frequency f (Hz)

10 30 100 300 1k

40

50

30

0

3
2
1

3k 10k

Total Harmonic Distortion THD (%)

Frequency Characteristics

G

V

, THD – f

Pre. Amp.

VCC=3V
R

L

=150kΩ

V

out

= –10dBV

Voltage Gain G

V

(dB)

Frequency f (Hz)

40

50

30

1

4
3
2

Total Harmonic Distortion THD (%)

Frequency Characteristics

G

V

, THD – f

Power Amp.

VCC=3V
R

L

=8Ω

V

O

= –10dBV

30k 100k

10 30 100 300 1k 3k 10k 30k 100k

G

V

THD

V

O

THD

Maximum Output Voltage V

O max.

(Vrms)

Supply Voltage VCC (V)

1.2

0.2

Maximum Output Voltage

V

O max.

– V

CC

Pre. Amp.

0 1 2 3 4 5 6

0.4

0.6

0.8

1.0

0

f

req.

=1kHz

R

L

=50kΩ

THD=1%

Voltage Gain G

V

(dB)

36

38

30

Total Harmonic Distortion THD (%)

Supply Voltage Characteristics

V

CC

– GV, THD

Pre. Amp.

Supply Voltage VCC (V)

0 1 2 3 4 5 6

0

3

2

1

32

34

40

VO= –10dBV
f

req.

=1kHz

R

L

=50kΩ

G

V

THD

■ Characteristics Curve

Input Voltage Vin (mVrms) Input Voltage Vin (mVrms)

THD

V

out

ICs for Cassette, Cassette Deck

AN7086S

0

Supply Voltage V

CC

(V)

Maximum Output Power P

O max.

(W)

THD=10%
f

req.

=1kHz

R

L

=8Ω

0.2

Maximum Output Power

P

O max.

– V

CC

G

V

0

0.4

0.6

0.8

1.0

1.2

1 2 3 4 5 6 0

Supply Voltage V

CC

(V)

Voltage Gain G

V

(dB)

VO=10dBV
f

req.

=1kHz

R

L

=8Ω

Supply Voltage Characteristics

G

V

, THD – V

CC

44

1 2 3 4 5 6

42

40

38

0

Total Harmonic Distortion THD (%)

1

2

3

4

5

THD

Supply Voltage VCC (V)

Maximum Output Voltage

V

O max.

– V

CC

0

0.4

0.8

1.2

1.6

2.0

2.4

0 1 2 3 4 5 6

THD=10%
f

req.

=1kHz

R

L

=10kΩ

Frequency f (Hz)

Frequency Characteristics

G

V

, THD – f

10 100 1k 10k 100k

50

60

70

80

40 0

1

2

3

4

V

CC

=3V

V

O

=–5dBV

R

L

=10kΩ

G

V

THD

Supply Voltage V

CC

(V)

Supply Voltage Characteristics

G

V

, THD – V

CC

0

60

0

V

O

=5dB

f

req.

=1kΩ

R

L

=10kΩ

64

68

72

76

80

1

2

3

4

5

0

1

2

3

4

5

1 2 3 4 5 6

Input Voltage V

in

(dBV)

Input/Output Characteristics

V

out

, THD – V

in

–8

–6

–4

–2

0

–80 –60 –40 –20 0

V

CC

=3V

f

req.

=1kHz

R

L

=10kΩ

THD

G

V

THD

V

out

Power Amp.

Voltage Gain G

V

(dB)

Rec. Amp.

Maximum Output V

O max.

(Vrms)

Rec. Amp.

Voltage Gain G

V

(dB)

Rec. Amp.

Output Voltage V

out

(dBV)

ALC

Power Amp.

Total Harmonic Distortion THD (%)Total Harmonic Distortion THD (%)

Total Harmonic Distortion THD (%)

ICs for Cassette, Cassette Deck

AN7086S

1 2 3 4 5 6 7 8 9 10 11 12

23 22 21 20 19 18 17 16 15 14 13

24

+

+

+

+

+

+

+

+

Head

0.1µF

0.01µF

+

+

+

+

+

+

0.0056µF

0.0047µF

10kΩ

4.7µF

1MΩ

Mic.

2.2µF

33µF

4.7µF

14kΩ

Rec.

1.5kΩ

PLAY

220µF

+

220µF

V

CC

220µF

33µF

33µF

Speaker
8Ω

2.2µF

V

CC

to Motor

VAS
OFF

PAUSE

47µF

0.01µF

82Ω

4.7kΩ

0.033µF

40kΩ

0.22µF

33µF

4.7µF

0.22µF

2.2kΩ

AN7086S

■ Application Circuit

Pin No.

Pin Name
1
2
3
4
5
6
7
8
9

10
11
12

Pre-Amp. NF Pin
Pre-Amp. Output Pin
Power Amp. Input Pin
Power Amp. NF Pin
VAS Detection
MOTOR Output Pin
Power Mute Pin
Power Output 1 Pin
B.S.1
Power GND
Power V

CC

Power Output 2-pin

■ Pin Descriptions

Pin No.

Pin Name
13
14
15
16
17
18
19
20
21
22
23
24

B.S.2
V

CC

Filter Pin
Center
Rec./Play Switching Pin
ALC Detection
NC
Rec. Amp. Output Pin
Mic. Amp. NF Pin
Mic. Amp. Input Pin
Pre. GND
Pre. Amp. Input Pin