Sanyo LA4167M Specifications

Ordering number : ENN4036C

42000TN (OT)/D2599TH (OT)/O282TS / 9121YO No. 4036-1/20

0.25

15.3

1

15

30

16

0.65

0.4

1.0

2.5max

2.250.1

0.65

7.9

9.2

10.5

SANYO: MFP30SD

[LA4167M]

LA4167M

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

1-channel Record/Playback System

for Microcassette and Compact Cassette Recorders

Monolithic Linear IC

Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.

Overview

The LA4167M is a record/playback system IC
supporting microcassette and compact cassette recorders.
This is a high-performance IC that has on-chip a
governor circuit for motor control, a voice sensor circuit
that detects sounds and switches the motor on and off,
and a cue-tone circuit for instantly finding the desired
segment to play back.

Functions

• Microphone and playback preamps

• Record amplifier

• Power amplifier (BTL 4 Ω — single power during

recording)

• Cue-tone oscillator and current amplifier (15 Hz typ.
sine wave)

• Governor circuit

• Microphone power supply

• LED drive

Features

• Can switch between recording and playback with a
single mechanical switch.

• Pause switch can switch the governor on and off.

• Cue-tone switch can record specified oscillator output
(sine wave) during recording.

• The governor can automatically be switched on or off
according to the mike input level during recording, and
the on/off level for the governor can be varied
continuously by the external volume control (used to
adjust volume during playback).

• Mike monitor level is continuously variable.

• LED pin for turning off the LED only when cue-tone is
on.

Package Dimensions

unit: mm

3073A-MFP30SD

LA4167M

No. 4036-2/20

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

CC

max 4.5 V
Allowable power dissipation Pd max 800 mW
Operating temperature Topg –10 to +50 °C
Storage temperature Tstg –55 to +150 °C

Specifications

Maximum Ratings at Ta = 25°C

Operating Conditions at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Recommended supply voltage V

CC

3.0 V

Power supply voltage operating range V

CC

op 1.8 to 3.6 V

Resistance load (power) R

L

pwr 4 Ω

Resistance load (preamp) R

L

pre 10 kΩ

Operation Characteristics at Ta = 25°C, VCC= 3.0 V, RL= 4Ω (power), RL= 10 kΩ (preamp), f = 1 kHz,

0 dBm = 0.775 V PLAY mode during BTL, REC mode during single

Parameter Symbol Conditions

Ratings

Unit

min typ max

[Pre + Power + GVN]

Silence current

I

CC-R

REC MODE, Vi=0V 6 12 18 mA

I

CC-P

PLAY MODE, Vi=0V 12 18 25 mA

[Pre + Power]

Voltage gain VG

TP

PLAY MODE, VO=–5dBm 70 72.5 75 dB

[EQ AMP]

Voltage gain (open) VG

OPCNF

=100µF 80 85 90 dB

Voltage gain (closed) VG

P

50 52 54 dB

Maximum output voltage V

OP

max THD=1% 0.5 0.75 1.0 V

Total harmonic distortion THD

PVO

=0.3V 0.01 0.2 0.6 %

Input conversion noise voltage V

NIP

Rg=2.2kΩ, DIN AUDIO 1.0 2.0 µV

Ripple rejection Rrp Rg=2.2kΩ, f

R

=1kHz, 1kHz Filter

45 60 dB

[MIC AMP]

Voltage gain (open) VG

OMCNF

=100µF 75 80 85 dB

Voltage gain (closed) VG

MI

EQ parameter ON, 3k, 3300pF IN 44 46 48 dB

Maximum output voltage V

OMAXM

THD=1%, RL=10kΩ 0.5 0.75 1.0 V

Total harmonic distortion THD

MVO

=0.3V 0.01 0.6 1.0 %

Input conversion noise voltage V

NIM

Rg=2.2kΩ, DIN AUDIO 1.0 2.0 µV

Ripple rejection Rr

M

Rg=2.2kΩ, fR=1kHz, 1kHz Filter 45 65 dB

Input resistance R

IM

24 32 40 kΩ

[MIC + REC]

Voltage gain (closed) VG

RT

Vol min 64.5 66.5 68.5 dB

Maximum output voltage V

OMAXR

THD=5% 0.6 1.0 1.3 V

Total harmonic distortion THD

RTVO

=0.85V 0.5 1.2 3.0 %

Output noise voltage V

NORT

MIC input, Rg=2.2kΩ, DIN AUDIO 5.0 10 mV

Ripple rejection Rr

RT

38 45 dB

[POWER AMP]

Voltage gain (open) VG

BTL

BTL ON, VO=–10dBm 21.5 24 26.5 dB

Voltage gain (closed) VG

SIN

BTL OFF, VO=–10dBm 20.5 23 25.5 dB

Output power (BTL) P

OBTL

THD=10% BTL 200 350 500 mW

Output power (SIN) P

OSIN

THD=10% Single 50 120 250 mW

Total harmonic distortion THD

BTL

BTL ON, VO=0.25V 0.1 0.8 2 %

Output noise voltage V

NOBTL

BTL ON, Rg=0 10 20 50 µV

Ripple rejection Rr

BTL

BTL ON, Rg=0, fR=1kHz, 1kHz Filter 50 70 dB

Output DC offset V

DC OFF

01050mV

Input resistance R

INBTL

21 30 39 kΩ

Continued on next page.

LA4167M

No. 4036-3/20

Continued from preceding page.

Parameter Symbol Conditions

Ratings

Unit

min typ max

[ALC]

ALC width ALC W

Input level width when output

40 50 65 dB

distortion is 5% and ALC is on
ALC distortion ALC THD Vim=–40dBm 0.1 1.5 2.5 %
ALC output ALC V

O

Vim=–40dBm 0.35 0.45 0.55 V
ALC input on ALC V

IN

–75 –70 –65 dB

[Voice sensor (VOX)]

Operation start input voltage V

OP

min VOLUME (10kΩ) max –90 –85 –80 dB

Input hysteresis V

O HL

369dB

[Oscillator]

Oscillation frequency f

OSCCOSC

=0.47µF 13.5 15 16.5 Hz

[LED]

LED drive current I

LED

REC LED 8 15 22 mA

[Governor]

Reference voltage Vref Im=100mA 1.1 1.25 1.4 V
Shunt ratio K Im=50–100mA 45 50 55
Residual voltage Vsat V

REF=VCONT

, Im=200mA 0.1 0.2 0.5 V

Reference voltage — voltage characteristics

∆Vref

/∆VCCVCC=1.8 to 4.5V, Im=100mA 0 0.2 0.6 %/V

Vref

Shunt voltage ratio — voltage characteristics

∆K

/∆VCCVCC=2.0 to 4.5V, Im=50–100mA

0 0.3 0.7 %/V

K

Reference voltage — current characteristics

∆Vref

/∆Im Im=50–200mA 0 0.002 0.03 %/mA

Vref

Shunt voltage ratio — current characteristics

∆K

/∆Im Im=50–100mA to 150–200mA –0.07 +0.03 +0.07 %/mA

K

Pin Array and Block Diagram

LA4167M

No. 4036-4/20

Test Circuit

1

27k

Ω

100

Ω

RX

300k

Ω

RX

2.2k

Ω

RX

2k

Ω

RX

20k

Ω

30k

Ω

470k

Ω

10k

Ω

2.2k

Ω

4700pF

1

µ

F

33

µ

F

K1

4.7

µ

F

22

µ

F

0.47

µ

F

1

µ

F

1

µ

F

0.033

µ

F

0.082

µ

F

10

µ

F

220

µ

F

3300pF

1000pF

1

µ

F

22

µ

F

+

+

+

+

++

+

+

+

PRE
NF

PRE
GND

EQ
IN

MIC
IN

V

REF

OUT

MIC
V

CC

R.F
OUT

LED
DRIVE

LED

Play

R/P
SW

PAUSE

R/P
MUTE

GVN
CONT

GVN
V

REF

VS

Im

GVN
GND

GVN
OUT

PRE
OUT

REC
IN

REC
OUT

ALC
CONT

VOX
CONT

VOX
DELAY

Cue
Tone
ON/OFF

Cue
Tone
OSC

Cue
Tone
OUT

PWR
IN

PWR
OUT1

PWR
GND

PWR
OUT2

V

CC

10k

Ω

1M

Ω

+

2

K2K8K3

K4

VCC

SW

ALC VOX

VOX Cue-Tone

R.F

R/P

GVN

POWER

V

REF

RECMICEQ

51.5dB

+

–

++

–

+
–

–

MIC
V

CC

1

PAUSE

A12755

+

4

Ω

4

Ω

K5

Vref

V

CC

(a)

100

µ

F

+

Vref

K6

20k

Ω

100

Ω

10k

Ω

50k

Ω

30k

Ω

30k

Ω

300

Ω

3k

Ω

2.2k

Ω

500k

Ω

0.47µF

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0.082

µ

F

470

µ

F

+

220

µ

F

3.0V

K7

REC

Sample Application Circuit

1

R3

27k

Ω

R2

100

Ω

RX

300k

Ω

RX

2.2k

Ω

RX

2k

Ω

RX

20k

Ω

30k

Ω

R5

470k

Ω

R4

10k

Ω

2.2k

Ω

C4

4700pF

C5

1

µ

F

C7

33

µ

F

C8

4.7

µ

F

C9

22

µ

F

C10

0.47

µ

F

C17

220

µ

F

C19

1

µ

F

C20

1

µ

F

C14

0.082

µ

F

C15
1µF

R9

C15

0.082

µ

F

C26

0.033µF

C21

10

µ

F

C22

220

µ

F

C23

100

µ

F

C24

4700pF

C25

6800pF

C12

1000pF

C13

0.033

µ

F

C6

1

µ

F

C3

22

µ

F

+

+

+

+

+

++

+

++

+

+

PRE
NF

PRE
GND

EQ
IN

MIC
IN

V

REF

OUT

MIC
V

CC

R.F
OUT

LED
DRIVE

LED

MIC.JK

PLAY

R/P.HEAD

REC

C.M

EAR.PH.JK

R/P
SW

PAUSE

R/P
MUTE

GVN
CONT

GVN
V

REF

VS

GVN
GND

GVN
OUT

PRE
OUT

REC
IN

REC
OUT

ALC
CONT

VOX
CONT

VOX
DELAY

Cue
Tone
ON/OFF

Cue
Tone
OSC

Cue
Tone
OUT

PWR
IN

PWR
OUT1

PWR
GND

PWR
OUT2

V

CC

R6

1M

Ω

+

2

ALC VOX

VOX Cue-Tone

R.F

R/P

GVN

POWER

V

REF

RECMICEQ

51.5dB

+

–

++

–

+
–

–

MIC
V

CC

1

PAUSE

A12756

R7

20k

Ω

R17

12k

Ω

R14

30k

Ω

R13

30k

Ω

R18

6.8k

Ω

R10

100

Ω

R12

10k

Ω

R15

300

Ω

R16

3k

Ω

R19

6.8k

Ω

R11

51k

Ω

R1

10k

Ω

R8
500k

Ω

C11

0.47µF

C1

47µF

C2

+

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LA4167M

No. 4036-5/20

Pin Assignments and Equivalent Circuits
[VCC=3.0V]

Continued on next page.

LA4167M

No. 4036-6/20

Continued from preceding page.

Continued on next page.