Datasheet.kr   

LA1267 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 LA1267
기능 FM/AM Tuner of Electronic Tuning Type
제조업체 Sanyo Semicon Device
로고 Sanyo Semicon Device 로고 


전체 14 페이지

		

No Preview Available !

LA1267 데이터시트, 핀배열, 회로
Ordering number : EN2012A
Monolithic Linear IC
LA1267
FM/AM Tuner of Electronic Tuning Type
Functions
FM : IF amplifier, quadrature detector, AF preamplifier,
signal meter, tuning indicator drive output (common
with stop signal, muting drive output).
AM : RF amplifier, MIX, OSC (with ALC), IF amplifier,
detector, AGC, signal meter, tuning indicator drive
output (common with stop signal), IF signal output.
Package Dimensions
unit : mm
3067-DIP24S
[LA1267]
Features
• Minimum number of external parts required.
• Excellent S/N.
• Local OSC with ALC.
• Local OSC buffer.
• Tuning indicator pin (common with narrow-band stop
signal and muting drive output).
• Variable stop sensitivity (variable separately for FM,
AM)
• Low whistle.
• Signal meter pin.
• Espesially suited for AM stereo, IF count electronic
tuning because of AM IF signal output.
SANYO : DIP24S
Specifications
Maximum Ratings at Ta=25°C, See specified Test Circuit.
Parameter
Symbol
Conditions
Maximum supply voltage
Flow-in current
Flow-out current
Allowable power dissipation
VCC max
I8
I22
I24
Pd max
Pins 7, 8, 19
Pin 8
Pin 22
Pin 24
Ta60°C
Operating temperature
Topr
Storage temperature
Tstg
Operating Conditions at Ta=25°C
Parameter
Symbol
Recommended operating voltage VCC
Operating voltage range
VCC op
Conditions
Ratings
16
20
1
2
650
–20 to +70
–40 to +125
Unit
V
mA
mA
mA
mW
°C
°C
Ratings
8.5
6 to 14
Unit
V
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
N2897HA (KT)/40594HK/D105KI, TS No.2012-1/14




LA1267 pdf, 반도체, 판매, 대치품
LA1267
• LED lighting sensitivity setting for FM.
For the LED lighting sensitivity setting for FM, the IC input
Semifixed Variable Resistor for FM
may be 45dBµ to 60dBµ. With the variations in the front end
LED lighting sensitivity setting for FM
considered, it is ideal that the IC input in a standard receiving
set be 51dBµ to 54dBµ. The lower value of VR2 for the
LED lighting sensitivity setting is as illustrated right. Since
Ideal setting range
the variations in the front end cause the IC input setting
sensitivity to vary, it is recommended to use a value of VR2
at an input voltage lower than a standard setting by 6dB or
greater. For example, if IC input 53dBµ is taken as a
standard, use VR2100kat IC input 47dBµ.
2. AM/FM changeover
• Two selections are available for changeover as shown below
: (A) pin 19-used method and (B) pin 20-used method.
IC input – dBµ
• For (A), the voltage on pin 19 relative to VCC (pin 7) must be within the range of –0.8V to +0.1V. If not within this
range, distortion and selectivity will get worse.
• For (A), a resistance of 68kat the IFT cold terminal, which is used to prevent the changeover circuit from
malfunctioning, must be connected.
(A) pin 19-use method for AM/FM changeover
(B) Pin 20-used method for AM/FM changeover
3. Local OSC buffer output
• When local OSC buffer output wave form is saw-toothed at the SW mode, connect a resistance of 1.2kor
thereabouts across pin 24 and GND.
4. AM input pin
• It is desirable that the AM input pin (pin 21) be L-coupled to pin 20.
• Inputting to pin 21 can be done by DC-cutting with a capacitor. However, an unbalance in the RF amplifier
(differential amplifier) causes gain drop and whistle worsening.
5. Capacitance across pin 9 and GND.
V9 – Modulation Frequency
A large capacitance across pin 9 and GND may cause a misstop
at an adjacent channel when the channel select speed is made
faster at the automatic channel select mode. In this case, decrease
the capacitance across pin 9 and GND. However, if too
decreased, the LED will flutter at low modulation frequencies at
the time of detuning. Therefore, it is recommended to fix the
capacitance across pin 9 and GND to be 3.3µF to 10µF. The
relation between modulation frequency and demodulation output
voltage on pin 9 with the capacitance across pin 9 and GND as a
parameter is shown right.
Modulation frequency – Hz
No.2012-4/14

4페이지










LA1267 전자부품, 판매, 대치품
LA1267
MW Reception Characteristic
Tracking adjust at each frequency
IF interference
Imiangteerference
Usable sensitivity (400Hz-30% mod., S/N=20dB)
Max. sensitivity (400Hz-30% mod.,
detection output 20mV)
Receiving frequency, fr – kHz
MW Detuning Characteristic
Selectivity Characteristic
Output 25mV const.
Frequency deviation, f – kHz
Spurious Characteristic
Reception : 1kHz
Frequency deviation, f – Hz
Frequency, f – Hz
Supply voltage, VCC – V
FM Current Drain Characteristic
InCoCL(EinDclcuudrirnegnt)
IF input voltage – dBµ
Receiving frequency, fr – kHz
AM Current Drain Characteristic
(including no LED current)
Antenna input voltage – dBm
No.2012-7/14

7페이지



구       성총 14 페이지
다운로드[ LA1267.PDF 데이터시트 ]
구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

전력 반도체 판매 ( IGBT, TR 모듈, SCR, 다이오드 모듈 )

휴대전화 : 010-3582-2743


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877, [ 홈페이지 ]



링크공유

링크 :

관련 데이터시트

부품번호상세설명 및 기능제조사
LA1260

FM/AM Tuner System for Radio-Casette Recorders/ Music Centers

Sanyo Semicon Device
Sanyo Semicon Device
LA1261

FM / AM ELECTRONIC TUNING

Sanyo Semiconductor Corporation
Sanyo Semiconductor Corporation

DataSheet.kr    |   2019   |  연락처   |  링크모음   |   검색  |   사이트맵