an7504sb Panasonic Corporation of North America, an7504sb Datasheet

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an7504sb

Manufacturer Part Number
an7504sb
Description
Pre-amp. And Power Amp. Ic For 1.5 V Headphone Stereo
Manufacturer
Panasonic Corporation of North America
Datasheet
ICs for Audio Common Use
AN7504SB
Pre-amp. and power amp. IC for 1.5 V headphone stereo
I Overview
amp. IC for headphone C-cassette stereo. It incorporates
tape selector, pre-amp. , soft AGC bass-boost circuit, etc.
I Features
I Applications
I Block Diagram
Publication date: December 2001
• Low voltage operation (0.98 V to 2.0 V)
• Tape selector switch built-in
• Low frequency boost function with soft AGC
• Headphone stereo
The AN7504SB is a low voltage operation headphone
Bias
FWD/REV
Pre-mute
Ripple filter
SDC00029BEB
AGC
Note) The package of this product will be changed
(0.4)
14
to lead-free type (SSOP028-P-0375E). See the
new package dimensions section later of this
datasheet.
1
7.2±0.3
9.3±0.3
SSOP028-P-0375A
28
15
Control
Unit: mm
1

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an7504sb Summary of contents

Page 1

... ICs for Audio Common Use AN7504SB Pre-amp. and power amp. IC for 1.5 V headphone stereo I Overview The AN7504SB is a low voltage operation headphone amp. IC for headphone C-cassette stereo. It incorporates tape selector, pre-amp. , soft AGC bass-boost circuit, etc. I Features • Low voltage operation (0. 2.0 V) • ...

Page 2

... AN7504SB I Absolute Maximum Ratings Parameter Supply voltage Supply current * 2 Power dissipation * 1 Operating ambient temperature * 1 Storage temperature Note Except for the operating ambient temperature and storage temperature, all ratings are for T Keep V (0. 0.98 V) free from any abnormal operation such as oscillation The power dissipation shown is the value for T ...

Page 3

... − V MTOFF CC 13 Low: REV High: Pre-mute − V THIH CC 1 Low: LBOOST off Low: Tape-select off Conditions P = 0.5 mW, × 2-ch Ω OUT L  SDC00029BEB AN7504SB = 25°C (continued) a Min Typ Max Unit 24 30  dB 0.89 0.94  V 0.68 0.76 0.83 V   0.1 V − 0.2  ...

Page 4

... AN7504SB I Terminal Equivalent Circuits Note) The values mentioned below are the typical ones and is subject to change due to application condition and dispersion of IC. Pin No. Equivalent circuit 1 + Pins 1,3 200 kΩ 25 kΩ V REF 2 2 GND Refer to pin 1 4 Refer to pin kΩ ...

Page 5

... CC 13 PWR-mute on − 0.2 V < 1/2V − V < 0 STBY on V < 0 GND FWD/REV/Pre-mute: V RPF FWD/REV/pre-mute control Pre-mute Voltage high: V − 0.1 < FWD Pin open REV Voltage low: V < 0.1 14-19 GND SDC00029BEB AN7504SB Waveform (typ.)  −8.8 dBV 0 V 1.2 V Refer to pin 9   14-19 5 ...

Page 6

... AN7504SB I Terminal Equivalent Circuits (continued) Note) The values mentioned below are the typical ones and is subject to change due to application condition and dispersion of IC. Pin No. Equivalent circuit 15 50 kΩ kΩ 50 kΩ kΩ 16 7.5 kΩ V REF 17 45 kΩ 15 kΩ ...

Page 7

... Tape-select on/off: Tape select driver GND Tape-select on/off CNT: V RPF Tape select driver Driver on Voltage high Driver off V < 0 GND PB-out (L): Playback amp. output SDC00029BEB AN7504SB Waveform (typ −32.2 dBV DC 0.78 V Refer to pin 19    −32.2 dBV 7 ...

Page 8

... AN7504SB I Terminal Equivalent Circuits (continued) Note) The values mentioned below are the typical ones and is subject to change due to application condition and dispersion of IC. Pin No. Equivalent circuit 26 Refer to pin 1 27 Refer to pin 1 28 Refer to pin 1 I Application Notes 1. Operation logic of control pin ...

Page 9

... V PWR system 1 100 Ω Ω Low boost on Low boost on 1 0.1 0.01 100k −60 SDC00029BEB AN7504SB 10 Distortion 1 0.1 0.01 −50 −40 Input amplitude (dBV) 4. Headphone amp. Output  Input −60 −50 −40 −30 Input amplitude (dBV) 10 Distortion 1 Output voltage ...

Page 10

... AN7504SB I Application Notes (continued) 2. Main characteristics (continued) 7. Ripple filter output voltage (pin 7) 2.5 2.0 1.5 1.0 0.5 1.5 2.0 0.5 1.0 V11 (  REF 1.0 0 1.0 V (V) CC 11. Headphone amp. at mute on/off (Pin 9) output voltage 1.0 0.5 Mute on 0 0.5 0 V13 ( Ripple filter output voltage (Using current) 2.5 2.0 1.5 1.0 0.5 2.5 0.5 10. Pin 2 (V 1.2 1.0 0.5 STBY ...

Page 11

... FWD/REV Pre-mute Bias Note The low V PNP TR be used as TR. CE(SAT) Tape-select on : Open Tape-select off : Low AGC Ripple filter * TR SDC00029BEB AN7504SB Base boost Control REV : Low FWD : Open Pre mute : High STBY on : Low1 PWR mute on : Low2 PWR mute off : Open ...

Page 12

... Base boost R6 On C13 Off Tape-select Off Off On Pre-amp. REV FWD Mute STBY Mute off Mute Head-phone I New Package Dimensions (Unit: mm) • SSOP028-P-0375E (Lead-free package (0.60) 12 R10 AN7504SB 11.60 ±0.20 15 (1.05) 14 +0.10 0.80 0.30 -0.05 Seating plane Seating plane SDC00029BEB 0° to 10° (0.40) ...

Page 13

... No part of this material may be reprinted or reproduced by any means without written permission from our company. Please read the following notes before using the datasheets A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. ...

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