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Fabricante

AN7352

Playback Pre-amplifier for Stereo Cassette Deck

Panasonic Corporation 

AN7352S

ICs for Cassette, Cassette Deck

s Absolute Maximum Ratings (Ta=25˚C)

Parameter

Symbol

Rating

Unit

Supply Voltage

VCC

±6.7

V

Supply Current

ICC (+)

22

mA

ICC (–)

20

mA

Power Dissipation

PD

702

mW

Operating Ambient Temperature

Topr

–25 ~ + 75

˚C

Storage Temperature

Tstg

–55 ~ + 150

˚C

s Recommended Operating Range (Ta= 25˚C)

Parameter

Symbol

Operating Supply Voltage Range

VCC

Range

± 4.5V ~ ± 6.5V

s Electrical Characteristics (VCC= ±6V, Ta=25˚C)

Parameter

Symbol

Condition

Consumption Current

Itot

VCC = ±6V, At no signals

Reference Output Level (0dB)

V1

Vin = –50dBv, f = 1kHz

30kHz LPF ON, VCNT = 2.5V

Reference Output Level (+ 6dB)

GH

VCNT = 5V, GH = DATA (2)– DATA (1)

Reference Output Level (– 6dB)

Level Difference Between Channels

Level Difference Between Tapes

Total Harmonics Distortion (0dB)

Output Noise Voltage

Maximum Output Level (0dB)

Crosstalk Between Channels

Output Offset Voltage (0dB)

Muting Attenuation

GL

DGLR

DGT12

THD11

Vno

VOMX

CT

VOFF

GM0

VCNT = 1.25V, GL = DATA (3) – DATA (1)

VCNT = 2.5V, DGLR = V1L– V1R

VCNT = 2.5V, DGT1T2 = V1T1 –V1T2

VCNT = 2.5V, V9/V20 = 0V, V8/V21= 5V

VCNT = 2.5V, DIN AUDIO, Rg = 2.2kΩ

VCNT = 2.5V, THD = 3%

VCNT = 2.5V, Rg = 220Ω

VCNT = 2.5V, Rg = 220Ω

VCNT = 0V

Muting Attenuation (T1)

GM1

VCNT = 2.5V

Muting Attenuation (T2)

GM2

VCNT = 2.5V

MS Amp. Section

VCC = ±6V, V15 = 0.3V

4kHz Gain (Input Voltage)

GMS1

f = 4kHz

High-Frequency Band Gain (Input Voltage)

GMS2

f = 50kHz

Logic – L

VCC = ±4.5V

Time Constant Switching Pin Voltage V9L

120µs mode

Tape Switching Pin Voltage

V8L

T2 mode

Speed Switching Pin Voltage

V20L

Double speed ( × 2) mode

R – P Switching Pin Voltage

V21L

R mode

Logic – H

VCC = ±6.5V

Time Constant Switching Pin Voltage V9H

70µs mode

Tape Switching Pin Voltage

V8H

T1 mode

Speed Switching Pin Voltage

V20H

Double speed ( × 1) mode

R – P Switching Pin Voltage

V21H

P mode

Mute

VCC = ±6V

Mute ON Voltage

Vmute1

Mute OFF Voltage

Vmute2

min.

9

45.4

+5

–7

2

60

–230

60

60

60

0

0

0

0

2.6

3.1

3.1

2.6

0

1.25

typ.

11

47.4

+6

–6

0

0

0.1

–69

3.6

max.

22

49.4

+7

–5

1

1

0.3

–62

+130

–51

–44

1.5

1.2

1.2

1.5

5

5

5

5

0.7

5

Unit

mA

dB

dB

dB

dB

dB

%

dBv

dBv

dB

mV

dB

dB

dB

dBv

dBv

V

V

V

V

V

V

V

V

V

V

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