LA3246 datasheet(5/13 Pages) SANYO

Part #	LA3246

Description	Stereo Preamplifier for Compact Double Cassette Playback-only Use

Download	13 Pages

Scroll/Zoom	100%

Manufacturer	SANYO [Sanyo Semicon Device]

Direct Link	https://www.sanyo-av.com/us/

Logo

5 / 13 page

(3) When an electrolytic capacitor is connected to input pins 1, 2 (or 23, 24), make the value of RIN1 as equal to that of RIN2as

possible.

The difference in the value between RIN1 and RIN2 causes the variation in amp output DC voltage at the time of F/R

switching. Therefore, the input DC voltage (voltage across RIN) must be made as equal as possible.

(4) The amplifier output characteristics are designed to be the same in the Nor Tape/High Speed (pin 15 GND/pin 6 VCC) and

Me Tape/Nor Speed (pin 15 VCC/pin 6 GND) modes. (Refer to sample application circuit, external constants.)

(5) When externally turning ON/OFF power supply pin 11 (by bringing pin 11 to +VCC/GND level) with a capacitor connected

to pin 13, connect external diode D, as shown below, so that no breakdown (or deterioration) of the IC system is caused by

ICD when the switch is turned OFF. When no capacitor is connected to pin 13, diode D is not required.

(6) The output MIX circuit is of the emitter follower configuration as shown below.

The MIX OUT output level VO MIX at the time a signal is applied to preamp1 (or preamp2) only is 1/2 as compared with

output levels VO1, VO2 at the time the same input signal is applied to both channels.

VO MIX = 1/2

VO1(= 1/2 × VO2)

where VO1= VO2

Unit (resistance:

Ω)

LA3246

No.2651-5/13

Similar Part No. - LA3246

Manufacturer	Part #	Datasheet	Description
Sanyo Semicon Device	LA3241	103Kb / 5P	Preamp For Compact Cassette Recording-only Use
Sanyo Semicon Device	LA3242	480Kb / 12P	Preamplifier for Compact Cassette Recorder Recording-only Use

Manufacturer	Part #	Datasheet	Description
Sanyo Semicon Device	LA3242	480Kb / 12P	Preamplifier for Compact Cassette Recorder Recording-only Use
	LA4583M	773Kb / 32P	Compact Cassette Stereo Recording and Playback System
	LA3241	103Kb / 5P	Preamp For Compact Cassette Recording-only Use
Rohm	BA3420AL	193Kb / 8P	Dual recording / playback preamplifier for radio cassette recorders
Panasonic Semiconductor	AN7352S	49Kb / 3P	Playback Pre-amplifier for Stereo Cassette Deck
Mitsubishi Electric Sem...	M51162	449Kb / 7P	RECORDINGIPLAYBACK PREAMPLIFIER FOR STEREO CASSETTE TAPE RECORDER
Toshiba Semiconductor	TA8189N	519Kb / 14P	QUAD PREAMPLIFIER FOR DOUBLE CASSETTE TAPE RECORDER
STMicroelectronics	TDA7273	124Kb / 9P	SINGLE CHIP STEREO CASSETTE PLAYBACK SYSTEM
NXP Semiconductors	TDA1522	120Kb / 16P	Stereo cassette head preamplifier and equalizer 1996 Feb 26
NXP Semiconductors	TDA1523	121Kb / 16P	Stereo cassette head preamplifier and equalizer 1996 Feb 26